According to the WeChat official account of the "Ministry of Ecology and Environment", on August 31, 2023, the air quality of the China Central Environmental Monitoring Station, the Central Meteorological Observatory, the National Joint Center for Air Pollution Prevention and Control, Northeast China, South China, Southwest China, Northwest China, and the Yangtze River Delta region The Forecasting and Forecasting Center and the Beijing Ecological Environment Monitoring Center held a national air quality forecasting consultation in the first half of September (1-15).
In the first half of September, most of the country's air quality was dominated by good to light pollution, and some cities may experience moderate or above pollution. Among them, on the 1st, affected by the weak air pressure field, some cities in Shandong may experience moderate ozone pollution; on the 3rd, affected by sand and dust weather, moderate PM10 pollution may occur in the eastern Xinjiang region; Short-term moderate to severe PM10 pollution may occur in southern Xinjiang, the Hexi region of Gansu, and central and western Ningxia; moderate ozone pollution may occur locally in the Yangtze River Delta from the 10th to the 12th.
Beijing-Tianjin-Hebei and surrounding areas: In the first half of September, the air quality in most of the region is mainly good, and light pollution may occur in some periods. Among them, from the 1st to the 3rd, mild pollution may occur in the central and southern Beijing-Tianjin-Hebei, central Shanxi, western Shandong and some cities in Henan, and some cities in Shandong may experience moderate pollution; from the 4th to the 6th, affected by the cold air process, the regional air The quality gradually improved to an excellent level; on the 7th to 9th, the diffusion conditions were slightly poor, and most of the area was good, and the central and southern Beijing-Tianjin-Hebei, central Shanxi, and western Shandong were mainly polluted from good to light; Affected by the cold air process, the air quality in most of the region remains at a good level. The primary pollutant is ozone.
Beijing: In the first half of September, the air quality is mainly good, and light pollution may occur in some periods. Among them, from 1st to 6th, the diffusion conditions are more favorable, and the air quality is mainly good; from 7th to 8th, there may be a slight ozone pollution process; from 9th to 15th, due to the influence of cold air and precipitation, the diffusion conditions become better, The air quality is excellent. The primary pollutant is ozone.
Yangtze River Delta region: In the first half of September, the air quality in most of the region is dominated by good to light pollution, and moderate pollution may occur locally. Among them, from the 1st to the 3rd, due to the influence of the typhoon's periphery, the region as a whole was good, and the northern part was slightly polluted; from the 4th to the 9th, due to the influence of the low-pressure trough, the overall area was mainly good, and the northern part was slightly polluted; 10 On the 12th, the diffusion conditions deteriorated, with good to light pollution in the region as a whole, and moderate pollution in the local area; from the 13th to the 15th, the overall pollution in the region was mainly good, and the local area was lightly polluted. The primary pollutant is ozone.
Junction of Jiangsu, Anhui, Shandong and Henan: In the first half of September, the air quality in most of the region was dominated by good to light pollution, and moderate pollution may occur locally. Among them, on the 1st, due to the influence of the weak air pressure field, the region as a whole is good to lightly polluted, and the local area in Shandong is moderately polluted; from the 2nd to the 9th, the diffusion conditions are average, and the region as a whole is good to lightly polluted; from the 10th to the 12th , the diffusion conditions turned worse, the region as a whole was good to lightly polluted, and the local area was moderately polluted; from the 13th to the 15th, the region as a whole was good to lightly polluted. The primary pollutant is ozone.
Fenwei Plain: In the first half of September, the air quality in most of the region was mainly from good to light pollution. Among them, from the 1st to the 9th, the atmospheric diffusion conditions are average, and the region as a whole is dominated by good to light pollution; from the 10th to the 13th, affected by the cold air and precipitation process, most of the region is mainly good, and there may be mild local pollution. Pollution: From the 14th to the 15th, most of the region will heat up, which is conducive to the formation of ozone, and the air quality is mainly from good to light pollution. The primary pollutant is ozone or PM10.
Northeast region: In the first half of September, the air quality in most of the region is mainly good, and mild pollution may occur locally. Among them, from the 1st to the 6th, the diffusion conditions in the central and northern parts are better, and the temperature in the south rises. Mainly, most of Liaoning is dominated by good to light pollution; from September to 15th, due to the influence of cold air, the diffusion conditions are better, and most of the area is mainly fine. The primary pollutant is ozone.
South China: In the first half of September, the air quality in the region was mainly from good to light pollution. Among them, from the 1st to the 11th, the central and eastern parts of Hubei and most of Hunan were under good to light pollution, and from the 12th to the 15th, the central part of the region was under good to light pollution. The primary pollutant is ozone.
Southwest region: In the first half of September, the air quality in most of the region is mainly good, and some cities in Guizhou, Sichuan and Chongqing may experience light pollution. Among them, from the 1st to the 9th, some cities in Guizhou may experience mild pollution processes; from the 2nd to the 8th, and from the 10th to the 12th, there may be 1 or 2 mild pollution processes in Sichuan and Chongqing. The primary pollutant is ozone.
Northwest Region: In the first half of September, the air quality in the region is generally good. Some cities may experience mild pollution, and local areas may experience short-term moderate to severe PM10 pollution. Among them, from the 1st to the 3rd, most of the region is mainly good, and there may be mild ozone pollution in the central and eastern regions. The eastern Xinjiang area is affected by sand and dust weather on the 3rd, and the air quality is mainly light to moderate pollution; 4- On the 8th, the air quality in most of the region was mainly good, and some cities may experience mild or above pollution. The eastern and southern Xinjiang regions, the Hexi region of Gansu, and the central and western parts of Ningxia were affected by sand and dust weather on the 4th to 5th, and there may be PM10 short-term moderate to severe pollution; from 9 to 10, the air quality in most of the region is mainly good, and mild pollution may occur locally in the central and eastern regions; from 11 to 15, the air quality in most of the region is mainly good, and local areas may Slight contamination occurs. The primary pollutant is ozone or PM10.
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