Ministry of ecology and environment: the proportion of excellent days in Beijing was less than 40% in May.


Ministry of ecology and environment: the proportion of excellent days in Beijing was less than 40% in May.

Original title: Ministry of ecology and environment: the proportion of excellent days in Beijing is less than 40% in May.

In June 13th, the Ministry of ecological environment issued the air quality status of the national and Beijing Tianjin Hebei, the Yangtze River Delta, the Pearl River Delta region and the municipalities directly under the central government, the provincial capital cities and the planned single listed cities in May and 1-5 months of this year. The cover press noted that the proportion of excellent days in Beijing was 39.3%, down 10.7 percentage points from the same period in May.

The responsible person of the Ministry of ecology and environment said that in May, the proportion of the average number of fine days in 338 cities at the prefecture level and above was 83.1%, up 8.5 percentage points over the same period. The concentration of PM2.5 was 31 micrograms per cubic meter, down 6.1% compared with the same period last year. The concentration of PM10 was 67 microgram / cubic meter, which dropped 5.6% compared with the same period last year.

In May, the first 10 cities (from seventy-fourth to sixty-fifth) in the 74 cities with relatively poor air quality were Tangshan, Taiyuan, Shijiazhuang, Xingtai, Changzhou, Beijing, Handan, Ji'nan, Zhengzhou and Baoding.

The average number of fine days in the 13 cities of Beijing, Tianjin and Hebei was 50.7% in May, up 8.7 percentage points over the same period. The concentration of PM2.5 was 44 micrograms per cubic meter, down 6.4% compared with the same period last year. The concentration of PM10 was 102 microgram / cubic meter, which dropped 14.3% compared with the same period last year.

Among them, the proportion of excellent days in Beijing in May was 39.3%, down 10.7 percentage points compared with the same period last year. The concentration of PM2.5 was 54 micrograms / cubic meter, up 8% compared with the same period last year. The concentration of PM10 was 103 microgram / cubic meter, which dropped 4.6% compared with the same period last year.

In the 25 cities of the Yangtze River Delta region, the average number of fine days in May was 74.4%, up 17.3 percentage points over the same period. The concentration of PM2.5 was 38 micrograms / cubic meter, up 5.6% compared with the same period last year. The concentration of PM10 was 64 microgram / cubic meter, which dropped 7.2% compared with the same period last year.

The ratio of average fine days in 9 cities in the Pearl River Delta region was 89.2% in May, up 12.2 percentage points over the same period. The concentration of PM2.5 was 21 micrograms per cubic meter, down 36.4% compared with the same period last year. The concentration of PM10 was 36 microgram / cubic meter, which dropped 30.8% compared with the same period last year.

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Editor in responsibility: Wu Jinming


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