Zhejiang will propose to introduce air pollution documents

In recent days, the phenomenon of air pollution in Zhejiang Province has been quite prominent, and cities in a number of provinces have also witnessed the PM2.5 index “burst”. Yesterday, the National Air Quality Ten Difference list. The original weather forecast said that the cold air that arrived yesterday will help clean air. Why does the air become worse?

The two lists show that Zhejiang Greenpeace, the worst weather protection organization in Zhejiang, has published the PM2.5 concentration rankings of cities across the country in the morning on Weibo. In the top ten rankings, there are five cities in Zhejiang, including 141 micrograms/cubic meter of Jiaxing, 148 micrograms/cubic meter of Hangzhou, 173 micrograms/cubic meter of Shaoxing, and 203 micrograms/cubic meter. Fuyang, as well as the top 282 micrograms/cubic meter of Zhuji. Subsequently, this message was widely forwarded.

Coincidentally, Yesterday’s People’s Daily released a news report “The worst air quality in today’s ten cities in Zhejiang, which accounted for 5 seats in Shaoxing, ranked the worst”. Reported that: As of 6:00 a.m. today (10th), Shaoxing's AQI (air quality pollution index) reached 290, which is heavily polluted, becoming the city with the worst air quality in 74 cities that released PM2.5 data. Beijing's AQI (air quality pollution index) is 26, with excellent air quality and suitable for outdoor sports. As of today (10th), the worst air quality in 10 cities was: Shaoxing, Jinan, Hangzhou, Ningbo, Nanchang, Wuhan, Jiaxing, Xingtai, Zhangzhou and Kunming. The reporter saw that this information is also accompanied by data on the Air Quality Index and PM2.5 of 74 cities around 6:00 am on November 10th. The text indicates that the information data comes from weather.

According to this information, yesterday morning at 6:00, the Ningbo Air Quality Index was 217, the PM2.5 index was 167, and the air quality index was the fourth worst in the country.

The general circulation of the atmosphere makes “fuzzy” stagnant workers in Zhejiang say that autumn and winter were originally the stage of frequent air pollution. “The seasonal variation of PM2.5 concentration index is very obvious. Summer is usually good, but it is common in autumn and winter. Poor.” In addition to natural factors, the influence of human factors is also evident. The air pollution caused by industrial and agricultural life in modern cities is not small. “The city’s industrial emissions are exhausted, especially in urban centers, and the emissions of automobile exhaust gas are very serious. People who feel the traffic jam in the morning and evening in Hangzhou can certainly realize that this, to a certain extent, also makes the city’s PM2.5. Concentration exceeds the standard is more prominent."

When talking about why air pollution in Zhejiang was so serious yesterday, the staff member surnamed Fu said: “The most important thing is the impact of the meteorological environment. After the pollutants from the upper reaches of the north arrived in Zhejiang, due to the small wind power, the conditions for atmospheric diffusion were poor. The geographical environment of many hills in Zhejiang is also not easy to allow the air to flow, resulting in long-term air pollution in Zhejiang, which has aggravated the air pollution in our province."

In addition, he also said: “From the perspective of the meteorological conditions of Zhejiang, it is also not conducive to the dilution, diffusion, and removal of air pollutants.” The chief forecaster of the Ningbo Meteorological Observatory also said that when the cold air slowly penetrates, the wind has southerly winds. The process of converting to the north wind. At this time, the wind becomes smaller and the concentration of pollutants tends to increase.

The reporter learned that air pollution related documents were prepared. From November 1st, the province's urban environmental air quality index was released. The number of air quality monitoring stations in the province increased from 53 to 153, covering every county-level city. This not only enhances the accuracy and research value of monitoring PM2.5 concentrations, but also disguisedly increases the “exposure” of many county-level cities in Zhejiang.

In fact, in addition to Zhejiang, the recent air quality in the entire Yangtze River Delta region is not very good. PM2.5 concentration monitoring results in Shanghai, Jiangsu, Anhui, and other provinces are also not optimistic, such as PM2.5 concentration on the morning of November 8. In the national rankings, six cities such as Taizhou, Zhenjiang, and Yangzhou in Jiangsu Province are on the list. Both the number of cities and the concentration of PM2.5 are more serious than those in Zhejiang. According to the data released by the China Meteorological Administration on November 1, the average number of smog days in the country since the beginning of the year was 4.7 days, which was 2.3 days more than the same period of the year (2.4 days), and was the highest since 1961. It is worth mentioning that the total number of smog days in 13 provinces and cities reached the highest in the same period in history, covering the Northeast, Yellow River Basin and many areas of the Yangtze River Valley, including Zhejiang Province.

The State Council has issued "10 articles for countries that govern the atmosphere" this year. Zhejiang Province attaches great importance to this and will respond positively. At present, regulations and documents specifically aimed at controlling air pollution in Zhejiang Province have already been drafted and will be introduced in the future.