Purifier usher in sales boom

In the recent past, the southern part of our country has been affected by haze and is slightly slower today. Mist double warning for seven consecutive days; the country's average haze days hit the highest in 52 years; North China haze dissipated yesterday, East China and then "endure" overnight. Looking forward to the cold air on the road to wash lungs for 100 cities yesterday due to the emergence of the north wind, the haze began to dissipate in northern China. So far, with the haze that has come in December, it has affected 25 provinces and more than 100 large and medium-sized cities.

The double-warning level of smog dropped yesterday. Yesterday afternoon, the Central Meteorological Observatory lowered the double-warning level of fog and haze from orange to yellow, but this was the seventh day when national double warnings were issued. Among them, the 6th-day warning was upgraded to orange, and the 7th-day fog warning was upgraded to orange. As of yesterday, the hazy orange warning double-fat situation lasted for 2 days.

The Central Meteorological Observatory analyzed that the large-scale smog process has not spared much of China's eastern and eastern regions. The number of days that occur in parts of central and southern Hebei, Tianjin, Shandong, central and eastern Henan, eastern Hubei, northeastern Hunan, northern Jiangxi, Jiangsu, Shanghai, Zhejiang, central Anhui, and parts of the western and southeastern Sichuan Basin reaches 6 to 7 days.

Yesterday, with the advent of the northerly wind, during the daytime yesterday, North China, under the guidance of the northerly wind, had left the fog and siege. According to the Central Meteorological Observatory, in the East China region, only one more night can be tolerated, and it is possible to return to cool and clean weather with the help of cold air. During the daytime, fog and haze in Jiangsu, Anhui Province, eastern and central Zhejiang Province, northern Zhejiang Province, southern Shandong Province, and southwestern Jiangsu Province will weaken and dissipate.

The Central Meteorological Observatory predicts that the cold air forces will be significantly strengthened over the previous week. In mid-December, there will not be such a large amount of haze in the south.

13 Historical records of haze days The China Meteorological Administration data show that since the beginning of this year, the average number of haze days in the country has been the highest in 52 years, and Anhui, Hunan, Hubei, Zhejiang, and Jiangsu have all recorded “historical records”.

According to relevant officials from the Monitoring Department of the Ministry of Environmental Protection, from the current point of view, the occurrence of such severe haze in the Yangtze River Delta is relatively rare. “It shows that the atmospheric pollution is not just in the Jing-Jin-Ji region, but the Yangtze River Delta is also very powerful.”

The experts responsible for environmental emergencies of the Ministry of Environmental Protection stated that the haze emergency is mainly done by the provinces and units, and it is difficult to achieve a wider range of emergency emission reductions. For example, if there are many vehicles that are transported daily between provinces, all restrictions will affect normal operations. Social and economic life order. At present, it is mainly the provinces that have detailed plans to distinguish between foreign vehicles and local vehicles. The restrictions will be concentrated in urban areas.

â–  Do you have to rely on heaven to dispel fog?

In the face of haze, it's only heaven? I am afraid this is still the case.

According to the report of the environmental protection department, it can be found that the cause of haze is on the one hand the climatic cause, that is, the climatic conditions are not conducive to the diffusion of pollutants, and on the other hand, a large number of pollution emissions are continuously occurring. Although climate is an external cause, internal factors are the decisive factor in the case where pollution emissions are difficult to reduce immediately.

In response to haze, the city is not doing nothing. For example, after the Shanghai Municipality started successive heavy pollution and serious pollution emergency measures on the 5th and 6th, the key industrial enterprises were allowed to restrict production or restrict production or stop production, and 30% of Party and government agencies and public service vehicles were stopped.

Although this reduces pollution emissions, these measures are currently only "emergency measures." Before today’s “emergency measures” are transformed into normal conditions, it may be more or less to disperse the haze. According to Xinhua News, masks and purifiers have no use?

For the "artifact" N95 mask, "N" indicates non-oily particles such as coal dust, cement dust, acid mist, and paint mist. "95" means that the filtration efficiency reaches 95% under the test conditions specified by the NIOSH (National Institute of Occupational Safety and Health) standard. According to industry sources, for the prevention and control of smog, the N95 mask is basically enough.

Wearing a mask still needs to vary from person to person. In most cases, mild to moderate impairment of lung function does not affect the use of respiratory protective equipment. However, people with certain diseases are usually not suitable for respiratory protection products such as moderate or severe lung disease, angina, high blood pressure signs, and uncontrollable high blood pressure.

On December 7, the Shanghai Bureau of Quality Supervision announced the results of the supervision and spot checks on 20 batches of air purifier products. Some companies use standard loopholes and cannot faithfully promote product performance, which can easily lead to misunderstandings by consumers.

This shows that qualified air purifiers are effective but need to be considered in conjunction with the housing area. According to Xinhua News, which smog was heavier than at the beginning of the year?

The severity of the haze is reminiscent of the large area of ​​mid-eastern smog that occurred in January this year.

The relevant officials of the Ministry of Environmental Protection's monitoring department said that the impact of smog over the current month is more than that in January, but the severity is still under investigation and analysis.

Chua Fahe, deputy director of the Chinese Academy of Environmental Sciences, said that the severity of the smog may not be greater than the last time. "This time, the highest instantaneous concentration of PM2.5 was about 600 micrograms, and the last time the highest in Jing-Jin was 1000 micrograms."

He Kebin, a professor at Tsinghua University’s School of Environment, said that compared with the haze in January, the haze that appeared this time moved south to the south. Therefore, the southern region is relatively more affected. "It lasted more than a dozen days in January. This time it has been more than a week, and it is still very serious."

The most concentrated and most serious haze process is in the Yangtze River Delta region. He Kebin said that on the one hand, although Beijing-Tianjin-Hebei is more concentrated on coal-fired coal, there are also a lot of coal-fired coal in the Yangtze River Delta. There are a large number of chemical and petrochemical industries in the Yangtze River Delta region, leading to large emissions of volatile organic compounds. In addition, there are some phenomena of burning straw in the rural areas.

Is Shanghai haze worse than Beijing?

Environmental emergency experts from the Ministry of Environmental Protection stated that the most unfavorable weather condition in Beijing is usually in October. At this time, the North-South flow of gas confronts Beijing and is prone to haze. Really into the winter, Beijing's haze is not as serious as when the fall and winter shift.

Xie Shaodong, a professor at the Beijing University’s School of Environmental Science and Engineering, believes that Beijing’s pollution level is not serious in the Middle East. In addition to meteorological factors such as relatively strong cold air activities, it is still related to local pollution emissions and emission reduction measures.

He Kebin said that for the Yangtze River Delta region, such a long period of haze is relatively rare. Because Nanjing is inland, the haze in historical records is more than that in Shanghai.

He Kebin said that on the whole, the air quality in Shanghai is not so bad. According to the statistics from January to October of this year, the air quality in the Beijing-Tianjin-Hebei region exceeds the standard of about 180%. Although the pollution in the Yangtze River Delta was very serious, it exceeded the standard by 60%, and the Pearl River Delta exceeded 20%-30%.

â–  Dealing with haze and a "mask" difficult to deal with 1

High-speed road closure airport "lockdown"

From the early morning of the 8th, Beijing-Kazakhstan, Beijing-Tianjin, Beijing-Hong Kong-Macao, and other expressways took the temporary closure measures. Shanghai, Jiangsu, Henan, Shandong, and other cities have adopted some or all of the expressway road closures. Airport passenger flights have been delayed or cancelled.

Coping 2

On the ground of the suspension of classes at the construction site school, the number of 201 projects in Wuhan involved basic construction, dust-raising operations, unearthed operations, work stoppages, or partial shutdowns. Schools in Nanjing and other cities suspended classes and Nanjing resumed classes today because of improved air.

Coping 3

Accelerating the introduction of an emergency plan Hangzhou decided to promulgate the "Hangzhou City Atmospheric Heavy Pollution Emergency Preparedness Plan (Trial)" ahead of schedule. The plan sets forth measures such as “school suspension, official vehicles, and private car restrictions” on heavy pollution days.

Coping 4

It is difficult for people to wear masks to go out of stores because of a “mask”. The shops in Hangzhou and other places have already been sold out of masks. The hazy days have also caused a high incidence of respiratory diseases. The medical and respiratory outpatients in the medical institutions in the Yangtze River Delta have generally seen an increase.