Heavy air pollution in parts of our country

Since March 15th, due to the adverse spread of meteorological conditions and dusty weather, heavy air pollution has occurred in some areas of our country. On March 15th, there were 25 cities with serious and above pollution. On March 16th, there were 20 cities with serious and above pollution. On March 17, the area of ​​dust pollution in the northwestern region has been reduced. Beijing-Tianjin-Hebei and surrounding areas and central regions Ash pollution has not yet been eliminated.
According to monitoring, on March 15th, 6 out of 338 prefecture-level and above cities in China had serious pollution, and 19 cities had severe pollution. The pollution was mainly concentrated in Beijing-Tianjin-Hebei and surrounding areas, central area and northwestern part. area.
On March 16, the pollution process continued, with 7 cities experiencing serious pollution and 13 cities experiencing severe pollution.
Among the 53 prefecture-level cities and above in the Beijing-Tianjin-Hebei region and surrounding cities, Baoding City is heavily polluted, and Langfang, Beijing, Tangshan, Shijiazhuang, Xingtai and Tianjin are heavily polluted. The primary pollutants are PM2.5. Baoding is the most heavily polluted area in the region, and the PM2.5 daily average concentration is 263 μg/m3. The daily average concentration of PM2.5 in Beijing is 216 μg/m3, and the air quality is heavily polluted.
The Jiaozuo City in the central region is heavily polluted, and the PM2.5 daily average concentration is 259 μg/m3. Six cities in Luoyang, Sanmenxia, ​​Xinxiang, Zhengzhou, Fuyang, and Jingmen are heavily polluted and the primary pollutants are PM2.5.
Five cities (regions) of Hetian, Kashgar, Atushi, Akesu and Zhangye in the northwestern region are affected by dust and dust. The air quality is seriously polluted, and Wuwei City is heavily polluted. The primary pollutant is PM10. Among them, the Hetian area is the most heavily polluted, and the PM10 daily average concentration is 1349 μg/m3.
As of 12:00 on March 17th, there were still 22 cities in the country whose air quality remained at or above the level of pollution. Hetian, Kashgar, Wuwei, Xingtai, and Shijiazhuang were among the five cities (regions) that were heavily polluted, with Langfang, Langfang, and Atu. Among the 17 cities (regions) such as Kushile, Aksu, and so on, severe pollution occurred. The concentration of PM2.5 in Beijing was 119 μg/m3, and the air quality was moderately polluted.
On March 18, the atmospheric diffusion conditions were unfavorable. The air quality in the northern part of the Beijing-Tianjin-Hebei region was dominated by good to mild pollution. The medium-to-heavy pollution was mainly in the central and southern regions, and serious pollution may occur in some areas. On March 19th, the atmospheric diffusion conditions improved slightly. The air quality in the northern part of Beijing, Tianjin, Hebei Province was mainly from good to mild pollution, while the south-central region was mainly from mild to moderate pollution.
It is recommended that heavy air pollution areas, children, the elderly and susceptible people with cardiovascular, respiratory diseases, etc. remain indoors and stop outdoor sports; the general population reduces outdoor sports and outdoor work time. At the same time, it is recommended that the public should use public transportation as far as possible to reduce the number of cars on the road.
The Ministry of Environmental Protection has asked the relevant provinces (cities) to pay close attention to the pollution situation, prepare for airborne heavy pollution ahead of schedule, initiate emergency plans in a timely manner if necessary, adopt emission reduction restrictions, and minimize air pollution. Hazards and effects.

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