Before May, the air quality was poor in ten cities: Hebei accounted for six seats, Shijiazhuang bottom.


Before May, the air quality was poor in ten cities: Hebei accounted for six seats, Shijiazhuang bottom.

Original title: before the announcement of the Ministry of the environment, the air quality in May was worse than ten cities: Hebei accounted for six seats and Shijiazhuang bottom.

The Ministry of ecological environment today 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 city and the planned single list of cities in May 2018 and 1-5.

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. From 1 to May, the average number of excellent days was 78.1%, up 2.5 percentage points over the same period. The concentration of PM2.5 was 48 micrograms per cubic meter, down 7.7% compared with the same period last year. The concentration of PM10 was 85 microgram / cubic meter, which dropped 2.3% 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. From 1 to May, the last 10 cities were Shijiazhuang, Xingtai, Handan, Xi'an, Tangshan, Taiyuan, Baoding, Zhengzhou, Xuzhou and Cangzhou.

In May, the first 10 cities with relatively good air quality in 74 cities (from first to tenth) were in turn: Haikou, Zhuhai, Zhongshan, Jiangmen, Nanning, Shenzhen, Lishui, Xiamen, Zhoushan and Guiyang. From 1 to May, the top 10 cities were Haikou, Lhasa, Zhoushan, Lishui, Shenzhen, Xiamen, Zhuhai, Huizhou, Fuzhou and Zhongshan.

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. From 1 to May, the average number of excellent days was 57.8%, up 3.7 percentage points over the same period. The concentration of PM2.5 was 64 micrograms per cubic meter, down 16.9% compared with the same period last year. The concentration of PM10 was 117 microgram / cubic meter, which dropped 14% compared with the same period last year.

The proportion of excellent days in Beijing was 39.3%, down 10.7 percentage points from the same period in May. 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. From 1 to May, the average number of excellent days was 59.9%, up 1.2 percentage points over the same period. The concentration of PM2.5 was 58 micrograms per cubic meter, down 18.3% compared with the same period last year. The concentration of PM10 was 93 microgram / cubic meter, which dropped 8.8% 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. From 1 to May, the average number of excellent days was 73.1%, up 2.6 percentage points over the same period. The concentration of PM2.5 was 52 micrograms / cubic meter, up 2% compared with the same period last year. The concentration of PM10 was 81 micrograms per cubic meter, unchanged from 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. From 1 to May, the average number of excellent days was 86.8%, up 0.5 percentage points over the same period. The concentration of PM2.5 was 37 micrograms per cubic meter, down 5.1% compared with the same period last year. The concentration of PM10 was 56 microgram / cubic meter, which dropped 3.4% compared with the same period last year.

Source: @ ecological environment department

Editor in responsibility: Zhang Yiling


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