Original title: national air quality ranking released in November?
According to the WeChat official account of the Ministry of ecology and environment, the Ministry of ecology and environment released the air quality situation in November 2019 and 1-11 in 13. The data shows that from January to November of 2019, the air quality of Xingtai, Shijiazhuang, Anyang and other cities is relatively poor, while that of Lhasa, Haikou and Zhoushan is relatively good.
In November 2019, the average excellent days proportion of 337 prefecture level and above cities was 85.4%, up 3.0 percentage points year on year; PM2.5 concentration was 41 μ g / m3, a year-on-year decrease of 8.9%; PM10 concentration was 76 μ g / m3, up 2.7%; O3 concentration was 101 μ g / M3, up 13.5%; SO2 concentration was 13 μ g / m3, a year-on-year decrease of 7.1%; NO2 concentration was 34 μ g / m3, a year-on-year decrease of 2.9%; CO concentration was 1.2 mg / m3, a year-on-year decrease of 14.3%. From January to November, the average excellent days proportion was 82.5%, with a year-on-year decrease of 1.9 percentage points; the ambient air quality of 171 cities reached the standard, with a year-on-year decrease of 3; the concentration of PM2.5 was 34 μ g / m3, a year-on-year decrease of 2.9%; the concentration of PM10 was 62 μ g / m3, unchanged year-on-year; the concentration of O3 was 150 μ g / m3, increasing by 6.4%; the concentration of SO2 was 11 μ g / m3, with a year-on-year decrease of 15.4%; The concentration of NO2 was 26 μ g / m3, which was the same as that of the same period last year; the concentration of CO was 1.3 mg / m3, which was the same as that of the same period last year.
In November, the average number of excellent days in Beijing Tianjin Hebei and its surrounding areas was 63.0%, an increase of 18.6 percentage points over the same period of last year; the concentration of PM2.5 was 63 μ g / m3, a year-on-year decrease of 25.9%. From January to November, the average proportion of excellent days was 53.0%, with a year-on-year decrease of 4.8 percentage points; the concentration of PM2.5 was 54 μ g / m3, a year-on-year decrease of 1.8%.
The proportion of excellent days in Beijing in November was 83.3%, up 26.6% year-on-year; PM2.5 concentration was 44 μ g / m3, a year-on-year decrease of 38.0%. From January to November, the proportion of excellent days was 64.4%, with a year-on-year decrease of 0.9%; the concentration of PM2.5 was 42 μ g / m3, with a year-on-year decrease of 14.3%.
The average number of excellent days in November of 41 cities in the Yangtze River Delta region was 84.6%, up 6.1% year on year; the concentration of PM2.5 was 43 μ g / m3, down 17.3% year on year. From January to November, the average proportion of excellent days was 76.8%, with a year-on-year decrease of 3.4 percentage points; the concentration of PM2.5 was 39 μ g / m3, a year-on-year decrease of 4.9%.
The average number of excellent days in November in 11 cities of Fenwei plain was 62.4%, increased by 6.3% year on year; PM2.5 concentration was 67 μ g / m3, decreased by 2.9% year on year. From January to November, the average proportion of excellent days was 62.4%, with a year-on-year decrease of 2.9 percentage points; the concentration of PM2.5 was 52 μ g / m3, up 2.0% year-on-year.
In November 2019, the air quality of Anyang, Luoyang, Xingtai and other cities is relatively poor, while that of Zhoushan, Lhasa and Ya'an is relatively good.
From January to November of 2019, among the 168 key cities, Xingtai, Shijiazhuang, Anyang and other cities have relatively poor air quality, while Lhasa, Haikou, Zhoushan and other cities have relatively good air quality.