atmospheric pollution

What is it?

Air pollution is a phenomenon that some substances enter the atmosphere due to human activities or natural processes, showing sufficient concentration for enough time, and thus endangering human comfort, health and welfare or the environment.

Air pollutants enter the atmosphere (input) from man-made or natural sources, participate in the circulation process of the atmosphere, and are removed (output) from the atmosphere through chemical reactions, biological activities and physical sedimentation after a certain retention time. If the output rate is less than the input rate, it will be relatively concentrated in the atmosphere, resulting in an increase in the concentration of a substance in the atmosphere. When the concentration rises to a certain extent, it will directly or indirectly cause acute and chronic harm to people, organisms or materials, and the atmosphere will be polluted.

1. Sources of air pollutants

(1) Natural sources of air pollution

Volcanic eruption: H2S, CO2, CO, HF, SO2 and volcanic ash are emitted.

Forest fire: CO, CO2, SO2, NO2, HC, etc. are emitted.

Natural dust: wind sand, soil dust, etc.

Forest plant release: mainly terpene hydrocarbons.

Wave droplet particles: mainly sulfate and sulfite.

In some cases, natural sources are more important than man-made sources. According to relevant statistics, 93% of global nitrogen emissions and 60% of sulfur oxide emissions come from natural sources.

(2) Man-made pollution sources

The atmospheric pollution source usually refers to the source of pollutants transported to the atmosphere by human activities. Man-made pollution sources of the atmosphere can be summarized as the following four aspects:

Fuel combustion: the combustion process of fuels (coal, oil, natural gas, etc.) is an important source of pollutants to the atmosphere. The main component of coal is carbon, and it contains hydrogen, oxygen, nitrogen, sulfur and metal compounds. In addition to a large amount of smoke and dust, carbon monoxide, carbon dioxide, sulfur dioxide, nitrogen oxides, organic compounds, smoke and dust and other substances are also formed during the combustion process.

Emissions from industrial production processes: such as hydrogen sulfide, carbon dioxide, sulfur dioxide and nitrogen oxides emitted by petrochemical enterprises; Sulfur dioxide, nitrogen oxides and dust containing heavy metal elements discharged by nonferrous metal smelting industry; Fluoride emitted by phosphate fertilizer plants; Sulfur dioxide, nitrogen oxides, hydrogen chloride and various acidic gases discharged from acid-base salinization industry; The iron and steel industry discharges dust, sulfur oxides, cyanide, carbon monoxide, hydrogen sulfide, phenol, benzene and hydrocarbons in the process of ironmaking, steelmaking and coking. The composition of pollutants is closely related to the nature of industrial enterprises.

Emissions during transportation: The tail gas emitted by automobiles, ships and airplanes is the main source of air pollution. The exhaust gas emitted by internal combustion engine contains carbon monoxide, nitrogen oxides, hydrocarbons, oxygen-containing organic compounds, sulfur oxides and lead compounds.

Emissions from agricultural activities: when pesticides are applied in the field, some pesticides will escape into the atmosphere in the form of dust and other particles, and those remaining on crops or adhering to the surface of crops can still volatilize into the atmosphere. Pesticides entering the atmosphere can be absorbed by suspended particles and transported to various places with the airflow, causing atmospheric pesticide pollution. In addition, there are straw burning.

China has enacted "People’s Republic of China (PRC) Environmental Protection Law" and formulated national and regional "waste gas emission standards" to reduce air pollution and protect people’s health.

2. Harm of air pollution

(1) Harm to human body

The harm of air pollutants to human body is various, mainly manifested in respiratory diseases and physiological dysfunction, as well as the irritation of mucous membranes such as eyes and nose, which is a chronic factor causing asthma in the elderly. Insufficient lung qi leads to physical decline.

The influence of air pollution on human body is firstly uncomfortable, then there is a reversible reaction in physiology, and then there are acute harmful symptoms. The harm of air pollution to people can be roughly divided into three types: acute poisoning, chronic poisoning and carcinogenesis.

1. Acute poisoning

When the concentration of pollutants in the air is low, it usually does not cause acute poisoning, but under some special conditions, such as special accidents in the production process of factories, a large number of harmful gases leaking out, and sudden changes in external meteorological conditions, it will cause acute poisoning of people. For example, methyl isocyanate leaked from Pabor pesticide plant in India directly harmed human body, with 2,500 people killed and more than 100,000 injured.

2. Chronic poisoning

The chronic toxic effect of air pollution on human health is mainly manifested in the phenomenon that the prevalence rate increases after pollutants are exposed to human body in low concentration for a long time. The incidence of lung cancer among urban residents in China is very high, the highest of which is in Shanghai, and the respiratory diseases of urban residents are significantly higher than those in suburbs.

3. Carcinogenesis

This is the result of long-term influence, because pollutants act on the body for a long time, damaging the genetic material in the body and causing mutation. If the germ cells mutate, all kinds of abnormalities will appear in the offspring, which is called teratogenicity. If the genetic material and genetic information of organism cells suddenly change, it is also called mutagenicity; If the tumor is induced, it is called carcinogenesis. The "cancer" referred to here includes benign tumors and malignant tumors. Carcinogens in the environment can be divided into chemical carcinogens, physical carcinogens and biological carcinogens. The process of carcinogenesis is quite complicated, generally including initiation stage and growth promotion stage. Factors that can induce tumors are collectively referred to as carcinogenic factors. Tumors caused by long-term exposure to carcinogenic factors in the environment are called environmental tumors. Air pollution will reduce people’s life span.

(2) Harm to plants

Air pollutants, especially sulfur dioxide and fluoride, are very harmful to plants. When the concentration of pollutants is very high, it will cause acute harm to plants, causing damage to the surface of plant leaves, or directly causing leaves to wither and fall off; When the concentration of pollutants is not high, it will cause chronic harm to plants, make the leaves of plants fade green, or there are no harmful symptoms on the surface, but the physiological functions of plants have been affected, resulting in the decline of plant yield and deterioration of quality.

(3) Harm to the climate

Air pollutants can also affect weather and climate. Particulate matter reduces atmospheric visibility and reduces the amount of solar radiation reaching the ground. Especially in large industrial cities, the sunlight is 40% less than normal when the smoke is not scattered. The pollutants in the upper atmosphere, such as nitrogen oxides, hydrocarbons and chlorofluorocarbons, decompose ozone in large quantities, causing the "ozone hole" problem, which has become the focus of global attention.

The increase of greenhouse gases such as carbon dioxide will lead to the warming of the earth’s atmosphere and the increase of global weather disasters. Another example is the increase of aerosol particles such as smoke and dust, which will increase atmospheric turbidity, weaken solar radiation and affect the long-wave radiation of the earth, which may lead to abnormal weather and climate.

(1) Reduce the amount of solar radiation reaching the ground: A large number of smoke particles discharged into the atmosphere from factories, power stations, automobiles and household heating equipment make the air very turbid, which blocks the sunlight and reduces the amount of solar radiation reaching the ground. According to observation and statistics, in the days when the smoke is not scattered in large industrial cities, the amount of direct sunlight hitting the ground is reduced by nearly 40% compared with the days without smoke. In cities with serious air pollution, it will lead to poor growth and development of people, animals and plants due to lack of sunlight every day.

② Increasing atmospheric precipitation: many of the particles discharged from large industrial cities have the function of condensation nuclei of water vapor. Therefore, when there are other precipitation conditions in the atmosphere, there will be precipitation weather. In the downwind areas of big industrial cities, there is more precipitation.

③ Acid rain: Sometimes, the rain falling from the sky contains sulfuric acid. This kind of acid rain is formed by the oxidation of sulfur dioxide, a pollutant in the atmosphere, to form sulfuric acid, which falls with the precipitation in nature. Sulfuric acid rain can destroy large areas of forests and crops, corrode and break paper products, textiles and leather products, deteriorate metal antirust coatings and reduce their protection, and corrode and pollute buildings.

3. How to prevent and control air pollution in life

1. Don’t litter; Travel by bus and subway as much as possible, reduce the use of private cars, and buy new energy vehicles; Participate in greening activities such as planting trees; Private cars are equipped with tail gas treatment devices, and lubricating oil is used to fully burn fuel and reduce harmful gas emissions.

2. On holidays, instead of setting off fireworks and firecrackers, electronic firecrackers can be used instead, no outdoor barbecue, no burning of straw and leaves, and less coal burning to reduce air pollution.

3. Reduce the use of freon-containing air conditioners and refrigerators, and suggest purchasing new energy-saving products.

4. Reduce going out in foggy weather (according to relevant explanations, Ozone refers to ozone, while PM2.5 refers to fine suspended particles with a diameter of less than 2.5 microns, also known as particles that can enter the lungs. This suspended particle is a "health killer" in the air. Extensive damage to respiratory system, heart and blood system).

5. Wear a mask when going out (factors such as mask material, service life and technical level are the criteria for defining the quality of masks. If consumers have no special needs, they don’t have to snap up "concept masks" marked with various functions).

6. It is everyone’s responsibility to prevent and control air pollution. It is the right given to every citizen by law to report and accuse acts that pollute and destroy the environment. When encountering uncivilized acts that pollute the atmosphere, actively report them, jointly safeguard the beautiful blue sky and build a happy Zhuzhou!

Source: Baidu Encyclopedia

　　In order to promote the scientific and technological innovation and industrial development of integrated circuits in our city, we are now openly soliciting the topic of core grain direction in the field of integrated circuits in 2022 for the innovative subjects in this city. Around the core particles and key technologies, it is planned to support 6 projects, and it is planned to arrange the municipal financial science and technology funds of 40 million yuan. The subject is declared according to the research direction of the second-level title of the guide (such as 1. Key technologies of high computing power Chiplet chip architecture). Specific guidelines and reporting requirements are as follows:

　　First, the direction of collection

　　1. Key technologies of high computing power Chiplet chip architecture.

　　Aiming at the different needs of high computing scenarios such as artificial intelligence and car networking, the key technologies of chip architecture based on Chiplet are studied. Research the computing paradigm and framework of Chiplet, as well as the data flow mode of differentiated scenarios, research the core architecture and core splitting and splicing technology for high computing power applications, study the energy-efficient computing power distribution strategy of many-core processing cores, form architecture exploration tools and middleware based on Chiplet technology, and realize industrial verification and preliminary commercial delivery.

　　2. Design of general high performance processor core.

　　A high-performance general processor core based on China’s process system was developed. This paper studies the flexible architecture design of multi-scene high computing power chips with universal core-particle matching, the design and implementation of high-performance on-chip bus, inter-chip network architecture and cache consistency in multi-core scenes, the design technology of ultra-low latency interconnection between large computing power chips in multi-core scenes, and the multi-scene mass production integration technology of high-performance universal core-particle under advanced technology, and realizes industrial verification and more than two commercial applications.

　　3. Design of high-performance intelligent processing pellets

　　Develop high-performance intelligent processing pellets. Research on key technologies such as intelligent processing pellet computing architecture, quick access to memory, interconnection between pellets, and on-demand configuration, and research on various pellet mass production integration technologies of high-performance intelligent processing pellets, large computing chips and multi-pellet scenes under advanced technology; Develop core particles that can support Chiplet integration, flexibly support all kinds of "cloud, edge and end" intelligent application scenarios, and realize industrial verification and landing of more than two commercial applications.

　　4. Universal high-speed inter-granular interconnection interface IP core

　　Research on standardized and reusable heterogeneous core-particle interface IP core. The interconnection interface standards compatible with different modes and topologies are studied. Based on the standard Chiplet interface protocol which is uniformly adapted to the link layer and a variety of efficient physical layers, a universal high-speed interface IP core suitable for different scenarios is formed, and the streaming is completed, and industrial verification and preliminary commercial delivery are realized.

　　5. Key IP cores of core-particle interconnection network

　　Research and develop communication interconnection network technology based on heterogeneous cores, and design the corresponding IP core of core transmission network. Research the hardware and software realization technology of key functions such as network topology, transmission mode and routing communication protocol, study the coordination management mechanism of network state monitoring, configuration and control among heterogeneous cores, study the scheduling and allocation method of system communication and storage resources, study the core power consumption management technology, develop the hardware subsystem needed for the upper management algorithm to run, complete the streaming and realize industrial verification and preliminary commercial delivery.

　　6. Advanced integration technology based on core particles

　　The key technologies of 2.5D and 3D advanced integration for large computing application scenarios are studied. This paper studies the mask splicing exposure technology suitable for the manufacture of super-large silicon-based interposer, studies the ultra-fine pitch wiring technology that breaks through the high I/O interconnection density limit, studies the manufacturing and hot-pressing bonding technology of high-density wafer-level small-size heterogeneous micro bumps that meet the interconnection between chips, establishes the Chiplet integration capability that meets the multi-dimensional requirements of high integration, high speed, high frequency, low delay and diversity, and realizes industrial verification and preliminary commercial delivery.

　　Second, the support amount and cycle

　　Fixed funding, the second and third support amount is 8 million yuan, and other projects are 6 million yuan. The research content of the subject must cover all the contents listed in the corresponding sub-direction. The project implementation period is generally 2 years, not more than 3 years.

　　Third, the reporting requirements

　　1. The application subject should have a clear technical route, strong industrial traction, contribution and social benefits, and clear and quantifiable objectives and assessment indicators.

　　2. The applicant shall be an enterprise or institution registered in Beijing with independent legal personality, with corresponding scientific research capabilities and conditions and standardized operation and management. Encourage enterprises to take the lead, and Industry-University-Research should use combination.

　　3. The applicant and the person in charge of the application shall comply with the requirements of the Measures for the Administration of Beijing Science and Technology Plan Projects (Projects) and the Measures for the Credit Management of Relevant Responsible Subjects in Beijing Science and Technology Plan Management; There is no bad credit record in applying for various scientific research projects (topics) at all levels in the past 3 years. No administrative punishment or illegal record, no bad scientific research integrity record.

　　4. If the applicant is an enterprise, in principle, it can participate in no more than one special declaration. The total investment and source of funds of the project should be clearly stated, and corresponding matching funds should be provided. The ratio of matching funds to science and technology funds should not be less than 2:1.

　　5. In principle, the person in charge of the declaration shall undertake no more than 2 projects (projects) of Beijing Science and Technology Plan as the person in charge, and the number of projects as the main participants shall not exceed 3 in principle.

　　Fourth, the declaration method

　　1. Take the online declaration method. After the applicant logs in to the "Beijing Science and Technology Plan Integrated Management Platform-Online Service System" (https://mis.kw.beijing.gov.cn/) through the legal person’s one-card pass to update the information of the applicant, the applicant logs in to the system and binds the applicant, selects the corresponding application type, completes the report of the implementation plan, and uploads the summary of the project (see the annex, the summary of the situation and the assessment indicators are no more than two pages) and other supporting materials required for the application of the project.

　　2. The scientific research department of the reporting unit is responsible for reviewing the online reporting scheme, submitting it uniformly within the reporting time limit, downloading and printing the reporting list, affixing the official seal of the unit in duplicate, scanning it into a PDF file and uploading it to the system.

　　3. The deadline for project application and acceptance is 24:00 on August 28th, 2022, when the system will automatically shut down.

　　4. Advisory services

　　Policy consultation telephone numbers: 010-88827942, 010-88827943, 010-88827945.

　　Technical consultation telephone numbers: 010-58858680 and 010-58858685.

　　Consulting service hours: 9:00-12:00 and 14:00-17:30 (working days).

　　Attachment: Summary of topics

Beijing Municipal Science and Technology Commission, Zhongguancun Science Park Management Committee　　　　

August 15, 2022　　

　　Beijing, December 10, 2007 (Reporter Han Meng) According to the News and Newspapers Summary of Voice of China, China Central Radio and Television Station, the Ministry of Industry and Information Technology recently introduced that China’s new energy vehicles have developed rapidly, and at the same time, they have integrated various revolutionary technologies such as artificial intelligence, Internet and big data, and the ecology of the automobile industry is being completely reshaped.

　　At present, the development of new energy vehicle industry in China has achieved positive results. In 2023, the production and sales of new energy vehicles in China are close to tens of millions, which has cultivated the world’s largest new energy vehicle consumption market and built an efficient and collaborative industrial system, which has injected a strong impetus into the electrification transformation of the global automobile industry.

　　In addition, the industrial chain and value chain of new energy vehicles are continuously expanding to the fields of transportation, energy, information and communication, and China is accelerating the construction of a new ecology of the automobile industry.

　　Xin Guobin, Vice Minister of the Ministry of Industry and Information Technology: Accelerate the promotion and application of new energy vehicles, jointly promote the low-carbon development of energy supply, material supply, manufacturing and other links, and improve the green recycling ecosystem.

　　The Ministry of Industry and Information Technology also said that China will actively promote the innovative development of new energy and intelligent networked vehicles, support the research and development and industrialization of new generation power batteries, new chassis, intelligent driving and other technologies, carry out pilot projects for the production access and road traffic of intelligent networked vehicles, and carry out the pilot application of city-level integration of "cars can Lu Yun".

　　How much pension can I get in the future? This is a problem that every pension insurance participant is concerned about. For a long time, people only know how much money they have paid, but rarely can they figure out how much money they will get in the future and whether the endowment insurance they have paid is worth it. Recently, the national social insurance public service platform was officially launched, and the insured can finally calculate how much pension they can receive in the future!

　　Want to calculate your own pension? Difficult!

　　How much does the employee pension insurance have to pay every month? The easiest way is to look at the deduction amount of endowment insurance on your salary slip, which is clear at a glance.

　　Old-age insurance is divided into two types: residents’ old-age insurance and employees’ old-age insurance. At present, employees’ old-age insurance is more concerned. In fact, there is a clear calculation method for pension benefits, but this calculation method is extremely complicated. For example, the pension insurance benefits for employees in Beijing are as follows:

　　After July 1, 1998, the basic pension consists of basic pension and personal account pension, and before June 30, 1998, the basic pension consists of basic pension, personal account pension and transitional pension.

　　Worked before June 30, 1998, pension composition:

　　Basic pension

　　Based on the average of the average monthly salary of employees in this city in the last year when the insured retires and the average monthly payment salary of himself, 1% will be paid for each full year according to the insured’s full payment period.

　　Transitional pension

　　The sum of the monthly transitional pension calculated according to the deemed payment period and the monthly transitional pension calculated according to the actual payment period.

　　Personal account pension

　　The accumulated storage amount of the insured’s personal account is divided by the number of months specified by the state. Different retirement ages correspond to different months. The Monthly Table of Personal Account Pension of Basic Old-age Insurance for Employees in Urban Enterprises can be easily found on the Internet.

　　The sum of the above three parts is the amount of pension that retirees can receive.

　　If you calculate according to the formula, it can be said that it is very frustrating. As a result, many people are trying to search for a "one-click generation" calculator on the Internet to calculate how much pension they can receive in the future.

　　However, although the calculation formula is ready-made, the amount of pension is closely related to the insured’s salary, average social salary, interest rate and other factors. These factors are variables, and it is impossible to accurately calculate the amount of pension under unpredictable circumstances.

　　Therefore, most of what can be searched online is only calculators for the amount of payment, and it is difficult to find calculators that can predict pension benefits.

　　give an example

　　The estimated benefits far outweigh the payment.

　　Suppose Wang, female, is currently 35 years old and has accumulated payment years of 11 years. Her "deemed payment period" is 0. Wang’s salary level fluctuates at twice the social average salary. For the convenience of calculation, let’s assume that her "previous annual average contribution wage index" is 2; Her "personal account deposit at the end of last year" was 107,519 yuan. The "average monthly salary of employees on the job last year" in Beijing, where she participated in the insurance, was 7855 yuan (the average salary of employees in full-caliber urban units in 2018). The assumption of "the average wage growth rate of employees in the future" is 8%, and the "future personal account bookkeeping rate" is also assumed to be 8%. "This year’s payment salary" is 20,761 yuan, and the future payment salary growth rate is also assumed to be 8%.

　　Through the calculator, the result shows that Wang will retire in 2039, and his basic pension is about 32,885 yuan, including 19,379 yuan for basic pension, 13,506 yuan for personal account pension and 0 yuan for transitional pension. In this way, Wang’s future pension is expected to exceed 30,000 yuan. Compared with the old-age insurance premiums paid before, the benefits are definitely far greater than the pay.

　　Many people will be surprised: "Can you get a pension of more than 30,000 yuan in the future? Will it be that high? " It should be noted that the simulation calculation here is the pension level after 20 years, and the future income situation cannot be felt by the current level of economic development. Just like 20 years ago, people’s wages were generally only a few hundred yuan, but now they have reached several thousand yuan. It is a truth that the original income can no longer be measured by the current economic level.

　　In addition, it should be emphasized that the calculation formula of pension involves many variables, which are only calculated under the simulation hypothesis of many variables and cannot truly reflect the future pension level of the insured. The actual amount shall be calculated by the local social security agency at the time of retirement.

　　operate

　　The official platform predicts that pensions will be divided into ten steps.

　　At present, the national social insurance public service platform can provide services such as social security annual enrollment information inquiry, treatment qualification authentication, pension calculation, social security relationship transfer inquiry, medical treatment inquiry in different places, overseas exemption application, social security card and electronic social security card status inquiry. Among these functions, pension calculation is very eye-catching. Although the platform provides a calculator, many people are still confused about the information that needs to be filled in.

　　The reporter logged into the platform and experienced it.

　　Click to enter the page of calculating the pension insurance benefits for urban workers. First, you must choose the type of insurance. This option includes "employees of urban enterprises" and "individual industrial and commercial households or flexible employees". Because most of the insured persons are insured through enterprises, here is an example of "employees of urban enterprises".

　　1 Fill in basic information such as gender and age. In the "estimated retirement age", the average male is 60 years old, the female cadre is 55 years old and the female worker is 50 years old.

　　2 determine the payment period. The column of "actual payment years" refers to the accumulated years of actual payment of social security. You can check your own payment information over the years, which is clearly recorded. The "deemed payment period" is very special. "The deemed payment period" refers to the continuous working time calculated according to the state regulations before the actual payment period of all the working years of employees. To put it bluntly, although you haven’t worked or paid the old-age insurance for some years, the old-age insurance will be considered as paid, and these years will be counted in your payment period to give you a pension.

　　According to the time when individual accounts of endowment insurance are established in different places, the starting time of deemed payment period is also different. Most of them were in the early 1990s, and those who worked before that had deemed payment period. Nowadays, young and middle-aged workers generally don’t involve the deemed payment period. Just fill in zero for this option.

　　3 determine the payment wage index. The "previous annual average payment wage index" is the most troublesome. The annual average payment wage index refers to the average payment wage index of social co-ordinators participating in endowment insurance over the years. It is based on the payment declared by the insured every year, and the salary is divided by the average salary of the local employees in the previous year, and the payment wage index of the year of payment is obtained. This is calculated once a year, and the annual payment wage index is added, and then divided by the actual payment period. Simply understood, the payment wage index means that the salary of the insured is several times that of the social security. Average the multiple of each year, and it is the annual average payment wage index.

　　4. Inquire about the amount of personal account storage at the end of last year. "The amount of personal account storage at the end of last year" is the sum of the personal account part and interest of the previous pension insurance, and most people will not remember how much money there is. You can check your own social security payment information over the years, which is clearly recorded (you can log on to the international social insurance public service platform or the Beijing social insurance online service platform).

　　5. Determine the average monthly salary of employees on the insured ground in the previous year. The "average monthly salary of employees on the insured ground in the previous year" will be announced by the social security department every year, and you can search and query it.

　　6. Forecast the future increase of social wage. "The average wage growth rate of employees in the future" is to fill in an estimated future growth rate of social wages, which is difficult to estimate. Looking up the average wage growth rate of employees released by Beijing Municipal Bureau of Statistics in recent years, we can find that this figure varies from high to low, reaching nearly 18% at high and just over 4% at low. So you can choose according to your personal prediction.

　　7 estimate the future personal account bookkeeping interest rate. The bookkeeping interest rate of personal account refers to the interest generated by the accumulated storage amount of personal account of endowment insurance. This bookkeeping interest rate should be determined with reference to the local average wage growth rate of employees in the previous year, the bank’s resident time deposit interest rate, the actual income from the operation of the endowment insurance fund and other factors. For example, the bookkeeping interest rate in 2016 was 8.31%, and the bookkeeping interest rate in 2017 was 7.12%.

　　8. Inquire about my payment salary this year. You can check your social security payment information.

　　9 forecast the growth rate of future payment wages. Insured personnel can estimate how much their annual salary will increase in the future.

　　10 calculation. After all the information is entered, click the "Calculate" button, and the system will give the pension budget result. Our reporter Dai Lili

　　Yongding, Fujian, May 30 (Huang Qiuping Tang Yuzhou Li Changliu) As the Dragon Boat Festival approaches, villagers in Hongkeng Village, Hukeng Town, yongding county, Longyan City, Fujian Province are busy hanging mugwort leaves, kudzu vines and making zongzi.

　　Dragon Boat Festival is the annual "Zongzi Festival" and "May Festival" of the Hakkas, and it is one of the three major festivals of the Hakkas in a year. In the local Dragon Boat Festival, besides traditional customs such as making zongzi and dragon boat racing, there are also local folk customs.

　　Yongding county has a long history of Hakka culture. Hakka people generally call the Dragon Boat Festival "May Festival". Before sunrise on the day of the Dragon Boat Festival, almost every Hakka household sweeps the courtyard, and puts kudzu vine, calamus and mugwort leaves in the lintel and hangs them in the hall to avoid evil spirits.

　　"Our Hakka people’s custom of Dragon Boat Festival is to hang mugwort and kudzu vine, mainly to pray for peace and smoothness. mugwort and kudzu vine have the function of expelling poison and evil spirits, and more importantly, they have the function of expelling poison and avoiding plague, which is of medical and scientific value to our current traditional medicine." Lin Rigeng, a villager from Hongkeng Village, Hukeng Town, yongding county, said.

　　Hakkas also have the custom of wearing sachets during the Dragon Boat Festival, especially when children wear sachets to ward off evil spirits and plague. The sachets contain cinnabar, wormwood, etc., which are wrapped in red cloth and are fragrant. They are woven into ropes with colorful ropes and made into various shapes, forming a string, which is exquisite and eye-catching.

　　Lin Jia’s grandmother in Hongkeng Village, Hukeng Town insists on making sachets for her grandchildren and little grandchildren every year, so that they can wear them on the Dragon Boat Festival. According to Lin Apo, although there are many sachets on the market now, she feels that it is more thoughtful to make them by herself. She will sew the blessings into the sachets one by one, hoping to bring peace and happiness to the children. (End)

Cervical cancer is one of the most common gynecological malignant tumors in the world. In China, more than 100,000 people get sick and nearly 60,000 people die every year, which seriously affects women’s health and life safety. Considering the epidemic characteristics of HPV and the applicable population range of the vaccine, the World Health Organization (WHO) believes that the earlier the HPV vaccine is vaccinated, the greater the benefit, and recommends girls aged 9-14 as the main target population for HPV vaccination worldwide. In 2024, the Zhejiang provincial government will provide free domestic bivalent HPV vaccine for school-age girls in the province as a practical project for the people.

Vaccination principle: informed, voluntary and free vaccination.

Inoculation target: junior high school girls aged 13-14 in Wucheng district who have no contraindications to HPV vaccination and have not been vaccinated before.

Vaccination time: The vaccination clinic in Wucheng District is expected to carry out the first dose of free bivalent HPV vaccination service from May 25, 2024, and the second dose is expected to be carried out from November to December. Consult the vaccination clinics in detail.

Vaccination procedure: 2 doses were inoculated in the whole process (the interval between 2 doses was not less than 5 months).

Warm reminder: the number of places is limited, while stocks last. Girls aged 13-14 who have completed the preliminary survey and agreed to be vaccinated are invited to go to the vaccination clinic in the school territory accompanied by their parents.

Question 1: Why do you want to get HPV vaccine?

A: HPV is the abbreviation of human papillomavirus. At present, there are more than 200 types found. HPV can be divided into high-risk type and low-risk type. Studies have shown that about 99.8% of cervical cancer is caused by persistent infection of high-risk HPV. At present, there are 12 kinds of high-risk HPV, including HPV16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58 and 59. In addition to causing cervical cancer, high-risk HPV is also related to the occurrence of cancer in anus, head and neck, genitals and other parts.

The types that bivalent HPV vaccine can prevent are HPV16 and HPV 18. Vaccination with HPV vaccine can significantly reduce the incidence of persistent HPV infection, precancerous lesions and cervical cancer, which is the most economical and effective means to prevent cervical cancer. Relevant clinical trials and post-marketing effect evaluation data show that the HPV vaccines currently approved for marketing have good safety and effectiveness.

Question 2: Why is the age range of free vaccination defined as 13-14-year-old girls?

A: The World Health Organization (WHO) recommends girls aged 9-14 as the main target population for HPV vaccination. Vaccination of HPV vaccine for young girls can induce a higher level of immune response and have a better preventive effect. Studies have shown that there are two peaks of HPV infection among Chinese women according to their age, one is 17-24 years old and the other is 40-44 years old. Taking girls aged 13-14 as the key target group for HPV vaccination, giving priority to ensuring and greatly improving the HPV vaccination rate of adolescent women can make better use of effective social resources and achieve the best effect of the primary prevention strategy for cervical cancer.

Question 3: Can I get HPV vaccine during the physiological period?

A: If there are no special circumstances such as fever, anemia, infection or severe menstrual discomfort, HPV vaccine can be vaccinated during the physiological period.

Question 4: What should I pay attention to after vaccination?

A: After inoculation, you should stay in the inoculation unit for 30 minutes, and you can leave only after there is no abnormality. After inoculation, you should rest more and drink more water to avoid strenuous exercise. Due to individual differences, a few people may have transient adverse reactions such as local pain, redness, induration, fever and fatigue after vaccination, which generally do not need special treatment and can be relieved by themselves. When necessary, you can go to a regular hospital in time.

Parents and friends, the healthy growth of children is related to the future of the motherland and the nation, and it is also the greatest wish and expectation of every family. Protecting children’s health is the common responsibility of schools, families and society. Let’s join hands to do a good job in HPV vaccination, escort the healthy growth of children and give them a healthy and bright future.

Wucheng District launches free bivalent HPV vaccination.

List of vaccination clinics

Original title: "Good news! Starting from tomorrow, this kind of school-age girls will be vaccinated free of charge.

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　　At this year’s National People’s Congress, the General Secretary of the Supreme Leader pointed out during the deliberation of the Jiangsu delegation: "We must plan major measures to further comprehensively deepen reform and continuously inject strong impetus into promoting high-quality development and promoting Chinese-style modernization."

　　The Report on the Work of the Government puts forward: "Make overall plans to expand domestic demand and deepen supply-side structural reform" and "organically combine the implementation of the strategy of expanding domestic demand with deepening supply-side structural reform, better coordinate consumption and investment, and enhance the pulling effect on economic growth".

　　All localities and departments thoroughly implement the spirit of the important speech of the Supreme Leader General Secretary and the spirit of the two sessions of the National People’s Congress, vigorously implement the strategy of expanding domestic demand, and take more effective measures to achieve a virtuous circle of social reproduction. We will continue to deepen the structural reform of the supply side, meet the existing demand with self-controlled and high-quality supply, create and lead new demand, form a higher level of dynamic balance between supply and demand, and promote high-quality development to achieve new and greater results.

　　Make overall plans to expand domestic demand and optimize supply.

　　The General Secretary of the Supreme Leader pointed out: "We should make overall plans to promote the expansion of domestic demand and optimize supply, break through the breakpoints of combining the two, and give play to the advantages of super-large-scale market and strong production capacity."

　　The "Government Work Report" puts forward: "Focus on expanding domestic demand and promoting a virtuous circle of the economy."

　　On March 30th, Moby Dick Theater in Harbin Polar Park, Heilongjiang Province was full of audience. "Since the beginning of this year, the number of tourists received has increased significantly year-on-year, maintaining more than 10,000 person-times for several consecutive days." Zhang Jiwei, head of the park brand marketing center, said.

　　Supply and demand are two sides of economic development. All regions and departments make overall plans and make concerted efforts, organically combine the implementation of the strategy of expanding domestic demand with deepening the structural reform on the supply side, help expand domestic demand through the structural reform on the supply side, and continuously optimize supply based on demand expansion and upgrading.

　　Give full play to the demand advantage of ultra-large-scale market — —

　　Spring is blooming, and the home appliance market is welcoming the peak consumption season. On March 30th, in a home appliance store in Haidian District, Beijing, consumer Li Yi used the trade-in service to order an energy-saving air conditioner, which not only enjoyed the convenience of professional door-to-door disassembly, but also got the 300 yuan deduction, which was convenient and affordable.

　　The consumption market of household appliances is huge. In 2023, the total retail sales of household appliances and audio-visual equipment above designated size reached 871.9 billion yuan. The State Council recently released the Action Plan to Promote Large-scale Equipment Renewal and Trade-in of Consumer Goods, proposing that by 2027, the recycling of used household appliances will increase by 30% compared with 2023. All localities and departments actively support home appliance sales enterprises, production enterprises and recycling enterprises to jointly carry out trade-in promotion activities, set up online and offline trade-in areas and give preferential treatment to consumers who buy energy-saving home appliances to stimulate greater potential of home appliance consumption.

　　Give full play to the supply advantage of strong production capacity — —

　　On March 28th, in the automatic production line of Shandong Linqing Xinsen Machinery Co., Ltd., the intelligent manufacturing equipment independently developed by the enterprise was running at a high speed and orderly. "We focus on the manufacturing industry, focus on projects, strengthen industries, provide excellent services, promote upgrading, promote the manufacturing industry to extend, supplement and strengthen chains, and constantly shape new kinetic energy and new advantages for development." Chang Chaofu, secretary of the Party Working Committee and director of the Management Committee of Linqing Economic Development Zone, said.

　　Industrial innovation ran out of acceleration. 1— In February, China’s investment in high-tech industries increased by 9.4% year-on-year, of which investment in high-tech manufacturing and high-tech service industries increased by 10.0% and 7.8% respectively. In high-tech manufacturing, the investment in information chemicals manufacturing, aviation, spacecraft and equipment manufacturing increased by 43.2% and 33.1% respectively; In the high-tech service industry, the investment in professional technical service industry and information service industry increased by 36.2% and 16.1% respectively.

　　Wang Yiming, vice chairman of China Center for International Economic Exchanges, said that China has a population of more than 1.4 billion and a middle-income group of more than 400 million. The income level and consumption level of residents have been continuously improved, and new industrialization and urbanization have been continuously promoted. It is the most potential super-large market in the world. It is necessary to promote the expansion of domestic demand and optimize supply as a whole, and give full play to the remarkable advantages of scale economy, innovation and development and impact resistance brought by the ultra-large domestic market to China’s economic development.

　　Adhere to the strategic basis of expanding domestic demand

　　General Secretary of the Supreme Leader stressed: "To build a new development pattern, we must adhere to the strategic basis of expanding domestic demand, so that production, distribution, circulation and consumption rely more on the domestic market and form a virtuous circle of the national economy."

　　The "Government Work Report" proposes to "promote the steady growth of consumption" and "actively expand effective investment".

　　"Charging is much more convenient, and it is more reassuring to buy new energy vehicles." On March 29th, Theway, a citizen who experienced the fast charging service, said at the Hong Kong New Energy Vehicle Charging Station in Wutong Street, Tongxiang City, Jiaxing City, Zhejiang Province. According to the staff of State Grid Jiaxing Power Supply Company, the charging station was put into use not long ago, which can satisfy the charging of more than 90 new energy vehicles at the same time, provide citizens with faster and more convenient charging services, and help green transportation and new energy vehicle consumption.

　　Consumption continues to be hot and production is busy. On April 1st, in the workshop of Zhongke Yibo (Dezhou) New Energy Technology Co., Ltd. in Qingyun County, Dezhou, Shandong Province, rows of sodium ion power batteries were transported on the assembly line. Li Chao, the general manager of the company, said that the four production lines are "fully fired" and the workers are working at full capacity. It is estimated that the sales in the first quarter will reach 80% of the sales in the whole year last year.

　　Demand pulls supply, and supply creates demand. All localities and departments exert their efforts from both supply and demand, give full play to the advantages of ultra-large-scale market and strong production capacity, accelerate the construction of a new development pattern, and push high-quality development to a new level.

　　Promote accurate consumption — —

　　"At the peak of the spring tour season, we are welcoming the peak of booking." On March 31st, Huang Fang, the head of Tianmu Mountain Residence in Shangshitang, ru ao, Xinchang County, Shaoxing, Zhejiang Province, was busy receiving guests after guests. Around Tianmu Mountain, ru ao explores the local characteristic culture, creates a richer tourism experience, and stimulates the cultural tourism consumption to be more energetic.

　　The National Online New Year Festival, the time-honored carnival, the Beijing-Tianjin-Hebei Consumer Season jointly organized by Beijing, Tianjin and Hebei, and the "33 Consumer Festival" with strong national characteristics held in Guangxi & HELIP; … All localities and departments have accelerated the creation of new consumption scenarios, new formats and new models, launched various consumption promotion activities, optimized and improved the consumption environment, and further consolidated the "main engine" role of consumption in economic growth.

　　"We will do a good job in implementing various policies, stimulate potential consumption, and promote consumption to shift from post-epidemic recovery to continuous expansion, providing strong support for consolidating and enhancing the economic recovery to a good situation and better meeting the needs of people’s better life." Xu Xingfeng, director of the Department of Market Operation and Consumption Promotion of the Ministry of Commerce, said that it will adhere to the "policy+activity" two-wheel drive, highlight key categories and festival seasons, continue to organize colorful consumption promotion activities, foster and expand new consumption, vigorously develop digital consumption, stabilize and expand traditional consumption, promote the expansion of service consumption, optimize the consumption environment, and release greater consumption potential.

　　Major projects are in full swing — —

　　On April 1st, the comprehensive management project site of Xinxing Zhawei Bund in Tongguan District, Tongling, Anhui Province was in full swing, which was the first major water conservancy project started this year. "The project feasibility study approved a total investment of 1.01 billion yuan and a total construction period of 21 months. After completion, it will significantly improve the coastal flood control capacity and protect navigation conditions." The relevant person in charge of the Ministry of Water Resources said.

　　On March 13th, the inner dome ball belt of Tianwan Nuclear Power Unit 8 in Lianyungang, Jiangsu Province was successfully hoisted. At this point, the national key energy project — — Tianwan Nuclear Power Plant No.7 and No.8 have all entered the stage of installation and commissioning, and are expected to be put into operation in 2026 and 2027 respectively. By then, the total installed capacity of Tianwan Nuclear Power Base will exceed 9 million kilowatts, and it can provide clean power of more than 70 billion kWh per year.

　　The project of diverting water from the Yangtze River to fill the Han River has entered the full-scale construction stage, and the largest wind farm in the ultra-high altitude area in the world has been put into operation. The arch ring of Xiangshuidong aqueduct in Zhanghe Irrigation District of Hubei Province has been successfully turned and closed, and the construction of Pingliang-Qingyang railway in Gansu Province has started. The first land cable crossing project in China has been successfully laid in Zhoushan, Zhejiang Province & HELIP; … A number of major projects are in full swing to refresh the "progress bar", providing solid support for the "good start" of the economy this year.

　　Actively promote high-end, intelligent and green industries.

　　The General Secretary of the Supreme Leader pointed out: "All localities should proceed from reality, first establish and then break down, adjust measures to local conditions, and give classified guidance, and selectively promote the development of new industries, new models and new kinetic energy according to local resource endowment, industrial base and scientific research conditions, and transform and upgrade traditional industries with new technologies, and actively promote high-end, intelligent and green industries."

　　The "Government Work Report" puts forward: "Vigorously promote the construction of a modern industrial system and accelerate the development of new quality productive forces. Give full play to the leading role of innovation, promote industrial innovation with scientific and technological innovation, accelerate the promotion of new industrialization, improve total factor productivity, constantly shape the development of new kinetic energy and new advantages, and promote a new leap in social productivity. "

　　All localities and departments should intensify innovation, make efforts to fill short boards, draw long boards and forge new boards, cultivate and expand emerging industries, lay out and build future industries ahead of schedule, improve the modern industrial system, and promote the high-end, intelligent and green transformation of traditional industries.

　　Speed up the optimization and upgrading of industrial chain supply chain — —

　　On March 27th, the groundbreaking ceremony for the 8th and 6th generation AMOLED production line invested by BOE was held in Chengdu, Sichuan. This production line is the first in China and the second in the world for the 8th and 6th generation AMOLED production line, and it is expected to achieve mass production in 2026. This year, Chengdu plans to implement 510 major industrial projects with an annual investment of 104.28 billion yuan, with 107 projects under construction and 129 completed and put into operation.

　　Emerging industries will seize the opportunities in the future — —

　　In the laboratory of Carbon Cloud Intelligent Company in Guangdong Zhuhai Hengqin Guangdong-Macao Deep Cooperation Zone, a series of sophisticated instruments are producing a special chip — — The second generation of silicon-based polypeptide chip. This chip can synthesize up to 168 million micro-detection units on a single 8-inch silicon wafer, and the detection sensitivity of each micro-detection unit is hundreds to thousands times that of the existing standard methods. This means that it can realize multi-dimensional understanding of personal and public health status in the field of molecular biology. This is part of the whole industrial chain of "digital life" built by carbon cloud intelligence.

　　As a new concept, digital life is one of the application fields of the future life and health industry in Guangdong. The relevant person in charge of the Guangdong Provincial Department of Industry and Information Technology said that by 2030, the five industrial clusters of future electronic information, future intelligent equipment, future life and health, future materials and future green and low carbon will become new economic growth points in Guangdong.

　　Better overall planning to expand domestic demand and optimize supply, give full play to the advantages of ultra-large-scale market, improve the adaptability of supply system to domestic demand, open up the blocking points of economic cycle, and promote the benign interaction between supply and demand, which will certainly inject new impetus into the world economy while achieving its own high-quality development.

　　Our reporter Wen Wen Intern Cheng Weijia

　　The problem of excessive formaldehyde in rental houses has recently aroused social concern. Chain Home Group’s long-term rental apartment service provider "freely" announced that all the first-time rental houses in 9 cities across the country have been removed from the shelves since September 1, and will not be put on the shelves until the professional certification bodies have passed the inspection. This is also a response to many complaints about air quality problems in long-term rental houses.

　　Why do long-term rental houses have excessive indoor formaldehyde? How to avoid indoor air pollution when decorating houses? The reporter conducted an interview a few days ago.

　　Renting a house encounters "formaldehyde exceeding the standard"

　　I thought the online news was far away from me, but I didn’t expect that in just one month, two students of the reporter both encountered air pollution problems in the process of renting a house.

　　Xiao Guo, a graduate student from Shanghai who came to Beijing, just solved the problem of finding a job, but experienced a disturbing storm of excessive formaldehyde in renting a house.

　　A few days after staying in the rented house, Xiao Guo felt a sore throat and headache, and his eyes were dry and even a little unclear. Xiao Guo bought a test paper online for testing, and found that formaldehyde in indoor air exceeded the standard by more than 12 times, even exceeding the extreme value that can be measured by test paper.

　　Xiao Guo further investigated and found that the pollution source should be the newly changed furniture provided by the intermediary. In desperation, she had to find a rental agent, arguing that she hoped to replace the furniture and compensate for physical damage.

　　However, the intermediary company refused to replace the furniture, claiming that it can withdraw the rent, but it is considered that the renter has breached the contract and needs to pay the corresponding liquidated damages. On the one hand, it is a health hazard, on the other hand, the house you rent can’t live, and you can’t defend your rights. You can’t find a house for a while when you change rooms. Guo is very embarrassed and can only stay at a friend’s house temporarily.

　　Xiao Guo’s experience is not unique in big cities such as Beijing and Shanghai.

　　Xiao Dong, another classmate of the reporter, works for a famous large Internet company in Beijing. In order to facilitate commuting, she chose to rent near the company and found a "free" rental house.

　　Due to the tight housing of the "Free" platform, Xiao Dong quickly rented the house before he had time to look at it carefully. However, after checking in, I found that the smell in the room was very strong, and I would feel dizzy after sleeping for one night in the morning. After testing confirmed that the indoor air formaldehyde exceeded the standard, the "Free" platform provided free rent change. However, due to the shortage of housing near the company, there is no suitable house replacement for the time being, and Xiaodong can only continue to rent in a house with excessive formaldehyde.

　　Now Xiao Dong has bought an air purifier in in addition to formaldehyde from his own pocket. "The effect is like that, and it is a peace of mind."

　　Recently, the number of complaints about indoor air pollution in long-term rental houses such as "Free" has increased. In this regard, many tenants feel helpless and are in a dilemma.

　　Lack of supervision and system makes it difficult to protect the rights of air pollution in long-term rental houses.

　　Reducing the cost of decoration and shortening the time from the completion of decoration to the opening of rent make the indoor air pollution problems of long-term rental houses frequent.

　　As a commercial operation, long-term rental apartments and long-term rental houses must consider their costs and profits. According to industry sources, the decoration standard of ordinary long-term rental apartments is not too high, and in some second-tier cities, it is often less than 500 yuan/square meter. And the average family decoration cost is at least 700 yuan ~800 yuan per square meter. In addition, the decoration time is as short as possible, often controlled within one month. In the mode of "low" and "fast", the indoor air quality of houses is not optimistic.

　　Ordinary home improvement rooms will be ventilated and "aired" for 3 to 6 months after renovation, so that harmful gases such as indoor formaldehyde can be fully volatilized. However, in order to pursue economic benefits, many apartment intermediaries rent out their houses immediately after renovation. Even an apartment manager said, "In order to control costs, renovated houses are usually placed for up to 3 days, and then listed for rent."

　　At the cusp of public opinion unanimously demanding that the rental platform take measures, "Freedom" promised in the announcement that tenants who stayed in "Freedom" for the first time after June 1, 2018 can apply for free air quality testing if they have doubts about indoor air quality. If there is a problem that the air quality of the house exceeds the standard, one of three options can be provided, including unconditional rent withdrawal and rent change; Provide free air quality control, and check in after passing the inspection; Or provide a brand air purifier for free use for 90 days.

　　The effect of "freely" solving problems remains to be seen. However, there are still no relevant measures for more long-term rental intermediary platforms.

　　For most tenants, they are in the downstream of housing lease and are vulnerable groups; More importantly, in the current laws and regulations, there are no clear constraints and regulations on the indoor air quality of rented houses, which undoubtedly increases the difficulty of tenants’ rights protection.

　　At present, China’s indoor air testing is based on the Indoor Air Quality Standard promulgated and implemented in 2002 and the Code for Indoor Environmental Pollution Control of Civil Construction Projects implemented in 2013. In the Indoor Air Quality Standard, the indoor formaldehyde standard is 0.1 mg/m3 (one-hour average), but this standard is not mandatory.

　　In some cities, there is no design to restrict the air quality of rental housing decoration environment, and the formaldehyde treatment of some intermediary companies is still blank.

　　Many tenants believe that simply returning the room unconditionally cannot finally solve the problem. "My health has been hurt, the time and energy spent in the coordination process, and the mental anxiety suffered by the unreasonable treatment of the rental platform. Who will bear these?"

　　"If the formaldehyde in the rental house exceeds the standard, the intermediary company or landlord should bear the medical expenses or other financial compensation for the tenant." Xiao Guo told reporters like this.

　　Suspected that the formaldehyde in rented houses exceeded the standard.

　　Evidence should be obtained in time and a third party should be invited to identify it.

　　"In order to maximize the benefits, some housing agencies rent out houses that have just been renovated for a few days, which is irresponsible for the tenants’ right to health." Han Xiao, a Beijing Kangda law firm, said in an interview with the media that if the court finds that there is a causal relationship between the tenant’s illness and the decoration and the house, according to Article 2 of China’s Tort Liability Law, the house decoration and lessor should bear the corresponding civil liability for compensation. At the same time, he introduced that at present, China’s housing rental disputes are mainly based on the Tort Liability Law, the Contract Law and the Judicial Interpretation of Personal Injury Compensation.

　　Whether the diseases suffered by residents are caused by excessive formaldehyde, if it is difficult to get the results in medical appraisal, the renter’s appeal may not be supported by the court in the end. Han Xiao reminded the public that if tenants feel unwell or suspect that formaldehyde exceeds the standard, they should immediately obtain relevant evidence, hire a third-party professional organization to conduct appraisal, move out immediately after doing the corresponding appraisal, ensure their personal safety to the maximum extent, and hire lawyers to take corresponding rights protection channels.

　　However, he also admitted that even so, after looking for a professional appraisal agency to make an appraisal, some parties still could not directly point the cause of the disease to excessive formaldehyde.

　　Luo Laiheng, a doctor in Nanchang Second Hospital, also agrees with Han Xiao’s statement. He said that the causes of the disease are various and not necessarily directly related to the decoration, so it is difficult to determine the specific causal relationship in medical appraisal. Yan Yuejin, research director of the think tank center of Shanghai Yiju Real Estate Research Institute, suggested that in case of suspected formaldehyde exceeding the standard, consumers should not only actively collect evidence, but also promptly complain to operating enterprises and relevant regulatory authorities.

　　— — Expert advice

　　Reduce pollution from the source, and the materials are environmentally friendly and ventilated.

　　At present, the housing supply in the rental market is tight, and tenants generally have a headache if they encounter problems such as excessive formaldehyde. After all, it is related to human health and cannot be sloppy. However, it is difficult to prevent indoor air pollution. After the discovery, due to the cost of living, economic cost and time cost, there is limited room for choice in the seller’s market.

　　In addition, because it is difficult to bear the high cost of asking a professional formaldehyde testing team to collect evidence, the harm of formaldehyde to the body can not be shown in a short time. It is easy for intermediary companies to avoid responsibility, and it is difficult for tenants to obtain compensation. Everyone can only choose not to do it or compromise.

　　Practice has proved that it is difficult to protect the health rights and interests of renters by relying solely on the independent adjustment of both parties, and it is also not conducive to the rights protection of consumer disputes. There is still a lack of clear rules for solving the problem of rent withdrawal claims caused by excessive formaldehyde.

　　"In the United States, the law clearly stipulates that rented houses must be rented after half a year of renovation." Peng Yingdeng, a researcher at the National Urban Environmental Pollution Control Technology Research Center, told reporters.

　　In addition to laws and regulations, in order to prevent indoor pollution, the United States and other developed countries have also taken some supporting measures. Peng Yingdeng told reporters that in many developed countries, furniture and building materials are required to use more environmentally friendly materials. "Most foreign furniture and building materials use phenolic resin, which contains only a small amount of formaldehyde and is basically negligible."

　　Peng Yingdeng said that the cost of phenolic resin is high, and many domestic enterprises choose to use urea-formaldehyde resin with much lower price in order to save costs, while urea-formaldehyde resin contains high formaldehyde. "The furniture in the Olympic Village of Beijing Olympic Games uses phenolic resin, and there is no indoor pollution problem."

　　Peng Yingdeng suggested that the state should reduce indoor formaldehyde pollution by controlling the raw materials of furniture and building materials, and encourage or support enterprises to use more environmentally friendly products. Cheap building materials bring temporary cost reduction and enterprise profit increase, but in the long run, the damage to human health can’t be measured by money.

　　Experts in the industry also suggested that formaldehyde is a "self-contained component" in many building decoration materials. Even if you carefully select and use high-quality and environmentally-friendly decoration materials, it is difficult to completely avoid its invasion. Therefore, it is necessary to maintain ventilation for a period of time after the renovation of new houses to ensure safety.

　　CCTV News:On November 16th, the website of China CDC published the monitoring situation of monkeypox epidemic in October 2023. From October 1 to 31, 2023, 127 newly confirmed cases of monkeypox were reported in China (excluding Hong Kong, Macao and Taiwan), including 17 cases in Guangdong, 16 cases in Shanghai, 15 cases in Zhejiang, 13 cases in Beijing, 12 cases in Sichuan, 8 cases in Henan, 7 cases in Jiangsu, 6 cases in Hubei, 6 cases in Guangxi, 5 cases in Hunan, 4 cases in Heilongjiang, 4 cases in Fujian, 4 cases in Shandong and 4 cases in Shandong.　

　　According to epidemiological investigation and analysis, the epidemic situation has the following characteristics: First, 98.2% of the cases are male, 90.0% of the cases are men who have sex with men, and 2 cases are women. Second, other contact methods have low risk of transmission. Only two close contacts except sexual contact were infected. Third, 97.2% were found by active medical consultation, 1.8% were found by follow-up screening of close contacts, and others were found by active reporting. Fourth, the clinical manifestations of most cases are typical, mainly for fever, herpes, lymphadenopathy and other symptoms.　

In daily life, parents tend to confuse children’s common cold with influenza. In fact, there are great differences between them in pathogen, infectivity, symptoms and medication. Parents should carefully distinguish whether their children are suffering from the common cold or the flu, and take medicine according to the symptoms.

Common cold

The common cold is mainly caused by viruses, and children will have symptoms such as stuffy nose, runny nose, sneezing, coughing and fever. The common cold is often a mild self-limiting disease, which can be gradually relieved without taking medicine.

In infants and young children, the symptoms of the common cold are usually more serious on the second to third day, and gradually relieved on the tenth to fourteenth day. A few children may cough for 3-4 weeks. Older children and adolescents generally have cold symptoms gradually subsided in 5-7 days, and children with basic lung diseases may last longer.

There is no specific medicine for the common cold. Taking medicine is mainly to relieve symptoms and make children feel less uncomfortable. The commonly used therapeutic drugs for relieving cold symptoms are shown in Table 1.

It should be noted that children should not be given cold medicine containing codeine. Although codeine has a strong antitussive effect, long-term use may cause physiological dependence and addiction. National Medical Products Administration’s announcement on revising the instructions for cold medicines containing codeine clearly points out that it is forbidden for children under 18 to use cold medicines containing codeine. Then, how to relieve the mild cold symptoms of children?

When the body temperature caused by fever is above 38.2℃, children over 2 months old can use acetaminophen to reduce fever, and children over 6 months old can use acetaminophen or ibuprofen to reduce fever. For the symptoms of nasal congestion and runny nose, it is suggested to relieve the symptoms by dripping salt water into the nose, spraying nose, nasal irrigation, etc. Children under 6 years old are generally not recommended to use drugs (such as compound cold medicine) to relieve the nasal symptoms, because these symptoms will generally gradually relieve themselves, and adverse reactions may occur when using drugs. If you have a cold accompanied by cough, you can replenish water appropriately, which will help to dilute sputum and relieve respiratory mucosa. Children over 1 year old with common cold can take honey or honey water to relieve their cough. Honey has a mild cough relieving effect on night cough. It should be noted that children under 1 year old should not take honey, because it will increase the risk of botulinum poisoning.

Parents need to pay special attention to that children need to seek medical attention as soon as possible in the following situations: infants less than 3 months old have symptoms such as fever and cough; After taking antipyretics, the fever still persists or persists for 3 days; Persistent nasal symptoms, such as stuffy nose, runny nose, sneezing, etc., have lasted for more than the course or degree of the common cold; Abnormal conditions such as dyspnea, confusion and ear pain occur.

So, how to prevent children from catching a cold? The most important thing to prevent colds is to wash your hands frequently. It is best to use running water when washing your hands, and tell your child to rub it with hand sanitizer or soap for at least 20 seconds. In addition, we should pay attention to indoor ventilation, take children to crowded public places less, and try to wear masks when going out. If parents catch a cold, they should be isolated and reduce contact with their children. Pay attention to the combination of meat and vegetables in diet, ensure nutrition, take children to exercise more and ensure enough sleep time to enhance their physique and improve their immunity.

Common medication problems of common cold

Q: Can antipyretics and compound cold medicines be taken together?

A: no. Compound cold medicine usually contains antipyretic ingredients, which can easily lead to repeated medication and toxic and side effects when taken together with antipyretics. It is best for parents to choose a single ingredient medicine for their children. If you use a compound cold medicine, you must read the instructions carefully before using it, especially the ingredients, to know whether there are repeated drugs.

Q: Do Chinese patent medicines have any side effects?

A: Chinese patent medicines also have side effects. Although the adverse reactions written in the instructions of many Chinese patent medicines are unclear, this does not mean that they have no adverse reactions, and Chinese patent medicines are not necessarily safer than western medicines.

Q: Do children need antibiotics for their common cold?

A: no need. Common cold is caused by virus infection, and antibacterial drugs are mainly aimed at bacterial infection. The use of antibacterial drugs is not only ineffective for common cold, but also may cause bacterial resistance. Therefore, the common cold does not need antibiotics, unless the doctor clearly diagnosed bacterial infection or secondary bacterial infection.

Q: Can children take oseltamivir for a common cold?

A: no. The common cold is mainly caused by rhinovirus and coronavirus, while oseltamivir is aimed at influenza viruses, including influenza A and influenza B viruses, so oseltamivir is not symptomatic for treating common cold.

flu

Influenza is an acute respiratory infectious disease caused by influenza virus, which can be divided into four types: A, B, C and D. The most common type of influenza is seasonal influenza, which occurs in autumn and winter and is mainly caused by influenza A and B viruses.

Children’s influenza often starts suddenly, the main symptom is fever, and the highest body temperature can reach 39~40℃, often accompanied by chills and chills. Children will also have headaches, muscle aches, fatigue, loss of appetite and other manifestations. Cough, sore throat, runny nose and stuffy nose may also occur, and a small number may have digestive tract symptoms, such as nausea, vomiting and diarrhea. The symptoms of influenza in infants and young children are often not as typical as those in children, and may only be fever and cough. Newborn influenza is relatively rare, but complications often occur, such as pneumonia and dyspnea.

Mild influenza is often similar to the common cold, but its fever and systemic symptoms are more obvious. Severe children will have viral pneumonia, secondary bacterial pneumonia, acute respiratory distress syndrome, shock, disseminated intravascular coagulation, cardiovascular and nervous system and other extrapulmonary manifestations and various complications.

Influenza patients and recessive infected people are the main sources of seasonal influenza infection, mainly through droplets of respiratory secretions, but also through direct or indirect contact with oral cavity, nasal cavity, eyes and other mucosa. Influenza virus is easy to produce new mutant strains, so it can spread widely among people, causing repeated infections and diseases. Therefore, we must pay attention to it and do our best to prevent it.

Different from the common cold, influenza has a "nemesis", that is, neuraminidase inhibitors. At present, the drugs listed in China include oseltamivir, zanamivir and palamivir. Among them, oseltamivir is the most widely used anti-influenza drug for adults and children at present, and its best administration time is within 48 hours after the onset of flu symptoms, and it is also effective after 96 hours after the onset of flu symptoms. Specific therapeutic and preventive doses can be found in Table 2. Although vaccination is the best way to prevent influenza virus infection, oseltamivir can be recommended for people who cannot be prevented by vaccine and the following key children in the outbreak of influenza.

The recommended drug prevention population includes: high-risk children who cannot be vaccinated with influenza vaccine, or children with immune abnormalities who do not respond to the vaccine; High-risk children within 2 weeks of vaccination; Family members or caregivers who are in close contact with non-immunized high-risk children or infants younger than 24 months; In order to control the outbreak of influenza, it is used in children who have not been immunized or in children’s gathering places (such as kindergartens); Prevention after exposure of family members; Prevention of patients with high risk of influenza complications and close contact with influenza.

Vaccination against influenza can significantly reduce the probability of influenza in children and the risk of serious complications. Therefore, parents are advised to take their children to get the flu vaccine in time every year. Generally, it is planted indirectly from September to December every year, and it is best to complete immunization before the end of October. Children aged 9 and over are advised to take one dose in one flu season. For children aged 6 months to 8 years, it is recommended to vaccinate two doses for the first time, with an interval of one month. But not all children are suitable for vaccination, and infants less than 6 months old or children who are allergic to any component of the vaccine are not suitable for vaccination. In addition, if the child suffers from mild to moderate acute diseases, it is recommended to vaccinate after the symptoms subside.

When the child has the following situations, he should pay attention to seek medical attention in time: dyspnea or shortness of breath, which can not be relieved after cleaning the nasal cavity; Crying low, crying less, not having good eye contact with parents, poor spirit and listlessness; Drink less water, or there are signs of dehydration, such as no tears when crying, decreased urine output (dry diapers), dry mucous membranes such as lips, tongue and eyes, and skin like dough, which cannot be quickly recovered after gently pinching the skin; Severe or persistent vomiting; Poor appetite, significantly reduced eating; Persistent fever, with or without convulsions; Fever with rash.

Common drug use problems of influenza

Q: Can infants under 1 year old take oseltamivir granules?

A: Although the minimum age of the population suitable for oseltamivir granules is 1 year old, the US Food and Drug Administration has approved that oseltamivir can be used for infants over 2 weeks old. The British Ministry of Public Health guidelines also suggest that infants under 1 year old can use it. China’s "Expert Consensus on Diagnosis and Treatment of Children’s Influenza (2015 Edition)" puts forward that oseltamivir can be used for influenza treatment in children of all ages and influenza prevention in children over 3 months old. According to the above evidence, infants younger than one year old can take oseltamivir granules, but it is an over-the-counter drug in China at present.

Q: The child’s condition has improved after taking the medicine for 3 days. Can he stop taking the medicine?

A: Due to individual differences, some children may feel better after two or three days of medication, but they are not sure whether their illness will recur. It is suggested that they should take medication according to the course of treatment for five days.

Q: Can oseltamivir take the place of influenza vaccine to prevent influenza?

A: Drug prevention is generally only used as an emergency temporary preventive measure and cannot replace vaccine prevention. Vaccination against influenza is the first choice to prevent influenza.

Q: Can I treat the flu with antibacterial drugs?

A: no. Antibacterials only kill or inhibit bacteria, but have no effect on influenza virus.