In the first half of December this year, the air quality in most parts of the country was mainly good to mildly polluted

Chinanews.com, December 12 -- The website of the Ministry of Ecology and Environment today published the results of the national air quality forecast meeting in the first half of December. It is mentioned that in the first half of December, the air quality in most parts of the country is mainly good to light pollution, and moderate and above pollution may occur in some parts of the country.

Data map: Floating dust weather. Photo/CNSphoto Yuan Hongyan

On November 2023, 11, the China Environmental Monitoring Station, together with the Central Meteorological Observatory, the National Joint Center for Air Pollution Prevention and Control, the Northeast, South China, Southwest, Northwest, and Yangtze River Delta Regional Air Quality Prediction and Forecasting Centers, and the Beijing Ecological Environment Monitoring Center, carried out a national air quality forecast consultation in the first half of December (30-12).

In the first half of December, the air quality in most parts of the country was mainly good to mildly polluted, and moderate or above pollution may occur in some parts of the country. Among them, from the 12rd to the 3th, moderate to severe pollution may occur in the central and southern parts of Beijing-Tianjin-Hebei and surrounding areas; From the 5nd to the 2th, short-term severe pollution may occur in Henan, Shandong and Anhui during some periods; Moderate pollution may occur in parts of Northeast China, East China, Southwest China and Northwest China.

Beijing-Tianjin-Hebei and surrounding areas: In the first half of December, the air quality in most of the region was mainly good to light pollution, and moderate or above pollution may occur during some periods. Among them, from the 12st to the 1nd, the air quality was mainly good to slightly polluted, and some cities in southern Hebei and northern Henan may have moderate pollution on the 2nd; From the 2rd to the 3th, a regional inversion process may occur, and the central and southern parts of the region will be affected by high humidity at night and systematic southerly winds, and the pollution will further accumulate, and moderate to severe pollution processes may occur. From the 5th to the 6th, under the influence of the passage of strong cold air, the pollution situation in most parts of the region was alleviated, with excellent pollution in the north and good to light pollution in the central and southern regions. From 7 to 8 days, the diffusion conditions turned unfavorable, the pollution accumulated again, and light to moderate pollution could occur in the central and southern parts of the region. From the 10th to the 11th, under the influence of multiple weak cold air disturbances, the central and northern parts of the region were excellent, and the southern part was dominated by light to moderate pollution. The primary pollutant is PM15.2.

Beijing: In the first half of December, the air quality was generally good, with light pollution occurring during some periods. Among them, from the 12st to the 1nd, the air quality was mainly good; From 2 to 3 days, the diffusion conditions were unfavorable, and the air quality was mainly good to slightly polluted. From the 5th to the 5th, the diffusion conditions improved and the air quality was good. From the 8th to the 9th, the air quality was mainly good, and light pollution may occur in the later period. In the later period, the diffusion conditions were generally favorable, and the air quality was mainly excellent. The primary pollutant is PM10.2.

Yangtze River Delta region: In the first half of December, the air quality in most of the region was mainly good to light pollution, and moderate pollution may occur locally in the central and northern regions. From the 12st to the 1th, the central and northern parts were benign to lightly polluted, and moderate pollution was likely to occur locally from the 4nd to the 2th, and the southern part was mainly benign. From the 4th to the 5th, the central and northern parts were well to lightly polluted, locally moderately polluted, and the southern part was mainly good. From 6 to 7 days, the central and northern parts were benign to lightly polluted, and moderate pollution was likely to occur locally from 13 to 10 days, and the southern part was mainly good. From the 13th to the 14th, under the influence of cold air, the overall pollution was mainly benign to mild, and the local short-term moderate pollution was localized. The primary pollutant is PM15 or PM10.2.

Junction of Jiangsu, Anhui, Shandong, and Henan: In the first half of December, most of the region was dominated by benign to light pollution, and moderate to severe pollution may occur locally. Among them, from 12 to 1 days, the overall pollution is good to light, and moderate pollution may occur in Henan, Shandong, and Anhui from 4 to 2 days, and severe pollution can be reached in a short time. On the 4th, under the influence of cold air, the overall pollution was good to light, and moderate pollution may occur in Shandong and Anhui, and severe pollution may occur in a short time; From 5 to 6 days, the overall pollution was good to light, and moderate to severe pollution may occur locally from 13 to 10 days. From the 13th to the 14th, under the influence of cold air, the overall pollution was good to light, and moderate to severe pollution may occur locally for a short time. The primary pollutant is PM15 or PM10.2.

Fenwei Plain: In the first half of December, the air quality in most parts of the region was mainly good to lightly polluted, and moderate pollution may occur during some periods. Among them, from the 12st to the 1rd, the diffusion conditions in most of the region deteriorated, and the air quality was mainly good to light pollution, and moderate pollution may occur in Guanzhong, Shaanxi Province on the 3nd to 2rd. From the 3th to the 4th, most of the region was affected by cold air, the diffusion conditions were favorable, and the air quality was mainly good to slightly polluted. From the 7th to the 8th, the diffusion conditions in most parts of the region deteriorated, and the air quality was mainly lightly polluted, and from the afternoon of the 9th, the diffusion conditions improved due to the influence of cold air, and the air quality was mainly good to mildly polluted. From the 9th to the 10th, the diffusion conditions in most parts of the region deteriorated, and the air quality was mainly mildly polluted, and moderate pollution may occur locally. From the 11th to the 12th, under the influence of cold air, the diffusion conditions gradually improved, and the air quality was mainly good to slightly polluted, and moderate pollution may occur in the southwest of Shanxi. From the 13th to the 14th, the diffusion conditions in most parts of the region deteriorated, and the air quality was mainly lightly polluted, and moderate pollution may occur locally. The primary pollutant is PM15.2.

Northeast China: In the first half of December, affected by multiple cold air processes, the diffusion conditions were good, and the air quality in most parts of the region was mainly excellent, with light pollution and moderate pollution in some periods. Among them, on the 12st and 1nd, the whole area is mainly excellent, and there may be light pollution locally; From the 2rd to the 3th, the regional diffusion conditions were average, with light pollution occurring in southern Heilongjiang, central Jilin, and most of Liaoning, and moderate pollution in local areas, while the air quality in the rest of the areas was excellent. From the 5th to the 6th, under the influence of continuous weak cold air process, the diffusion conditions were good, and the air quality in most parts of the region was mainly excellent. From the 8th to the 9th, the diffusion conditions were average, and there may be light pollution in southern Heilongjiang, central Jilin and most of Liaoning, and moderate pollution may occur locally. From the 11th to the 12th, under the influence of the strong cold air process, the diffusion conditions were good, and the air quality in most parts of the region was excellent. The primary pollutant is PM15.2.

South China: In the first half of December, the regional air quality was generally excellent. From the 12nd to the 2th, the northern part of the region and the Pearl River Delta were moderately polluted. From the 5th to the 6th, the central and eastern parts of Hubei, the central and western parts of the Pearl River Delta, and the central and western parts of Guangxi were well to lightly polluted; From the 7th to the 12th, the central and eastern parts of Hubei, the central and northern parts of Hunan and the Pearl River Delta were well to lightly polluted. On the 13th, most of the Pearl River Delta and Guangxi were well to lightly polluted. The primary pollutant is O14 or PM3.2.

Southwest China: In the first half of December, there may be two light to moderate pollution processes in the region. Among them, on the 12st, 2th-1th, and 9th-10th, most of the region was excellent; From the 14nd to the 15th, moderate to severe pollution may occur in individual cities in southern Sichuan, light to moderate pollution may occur in Chengdu Plain, northeast Sichuan and Chongqing, light pollution may occur in Guizhou, and the rest of the areas may be mainly excellent. From the 2th to the 8th, light to moderate pollution may occur in some cities in southern Sichuan, with light pollution in the Chengdu Plain, northeastern Sichuan and Chongqing, and excellent pollution in the rest of the areas. The primary pollutant is PM11.13.

Northwest China: In the first half of December, the air quality in most parts of the region was mainly good, and mild or above pollution may occur in some parts of the region, and two short-term dust weather processes may occur in the north from 12 to 4 and 6 to 11. Among them, from the 12st to the 1rd, the diffusion conditions were average, most of the area was mainly good, and light to moderate pollution may occur in Guanzhong, Shaanxi. From the 3th to the 4th, the air quality in most parts of the region was mainly good to slightly polluted, and Hexi in Gansu, Ningxia, western Inner Mongolia and northern Shaanxi were affected by the dust weather process, and some cities may have short-term severe pollution or above. From the 6th to the 7th, the diffusion conditions in most of the region were favorable, and the air quality was mainly good, and light pollution may occur locally. On the 9th, the diffusion conditions in most of the region were average, and the air quality was mainly good to mildly polluted, and moderate pollution may occur in Guanzhong, Shaanxi. From the 10th to the 11th, the air quality in most parts of the region was mainly good to light pollution, and moderate pollution may occur in Guanzhong in Shaanxi, and Hexi in Gansu, Ningxia, western Inner Mongolia and northern Shaanxi will be affected by the dust weather process, and some cities may have short-term severe pollution or above. From the 12th to the 13th, the diffusion conditions in most parts of the region deteriorated, and the air quality was mainly good to mildly polluted, and moderate pollution may occur in Guanzhong, Shaanxi Province from the 15th to the 14th. The air quality in the northern slope of the Tianshan Mountains in Xinjiang is mainly good to mildly polluted, and moderate to severe pollution may occur from 15th to 11th. The air quality in southern Xinjiang is mainly light to moderate pollution. Affected by sand and dust, moderate pollution may occur locally in eastern Xinjiang on the 12th, and moderate to severe pollution may occur in southern Xinjiang cities from 13th to 13th. The primary pollutant is PM15 or PM10.2.