From January to August

Author:The official account of Xi'an Time:2022.09.21

According to the website of the Ministry of Ecology and Environment, the Ministry of Ecology and Environment notified the national environmental air quality status from August and January to August on the 20th. Among them, from January to August, the average number of excellent air quality in 339 prefecture -level and above cities across the country was 86.3%, which was flat year -on -year.

In August, 339 prefecture -level and above cities nationwide, the average number of air quality in the country was 93.2%, an increase of 1.5 percentage points year -on -year; the average concentration of PM2.5 was 16 micrograms/cubic meter, a year -on -year decrease of 5.9%; the average concentration of PM10 was 31 micrograms of 31 micrograms. /Cubic meter, a year -on -year decrease of 6.1%; the average concentration of O3 was 135 micrograms/cubic meter, a year -on -year decrease of 3.6%; the average concentration of SO2 was 7 micrograms/cubic meters, which was flat year -on -year; %; The average conmium of CO is 0.7 mg/cubic meter, a year -on -year decrease of 12.5%.

From January to August, the average number of excellent air quality in 339 prefecture -level and above cities across the country was 86.3%, which was flat year -on -year; the average PM2.5 concentration was 28 micrograms/cubic meters, a decrease of 3.4%year -on -year; Cubic meter, a year -on -year decrease of 7.5%; the average concentration of O3 was 145 micrograms/cubic meter, an increase of 3.6%year -on -year; the average concentration of SO2 was 8 micrograms/cubic meters, a year -on -year decrease of 11.1%; 13.6%; the average CO concentration is 1.1 mg/cubic meter, which is the same year -on -year.

From January to August 2022 to August, 339 prefecture -level and above cities at all levels. Picture source: website of the Ministry of Ecology and Environment

From January to August 2022, the concentration and year -on -year changes in the sixth and above cities in the country. Picture source: website of the Ministry of Ecology and Environment

In August, the average number of excellent days of "2+26" cities in Beijing, Tianjin, Hebei and surrounding areas was 85.0%, an increase of 15.1 percentage points year -on -year; PM2.5 concentration was 23 micrograms/cubic meter, a year -on -year decrease of 14.8%; the average concentration of O3 was 164 Micro/cubic meter, a year -on -year decrease of 8.4%. From January to August, the average number of excellent days was 65.1%, a year -on -year increase of 2.7 percentage points; PM2.5 concentration was 40 micrograms/cubic meter, a year -on -year decrease of 4.8%; the average concentration of O3 was 183 micrograms/cubic meter, an increase of 1.1%year -on -year.

The proportion of excellent days in Beijing in August was 87.1%, a year -on -year decrease of 6.4 percentage points; PM2.5 concentration was 19 micrograms/cubic meters, an increase of 5.6%year -on -year; the average concentration of O3 was 162 micrograms/cubic meter, a year -on -year increase of 5.2%. From January to August, the proportion of excellent days was 78.6%, a year -on -year increase of 4.9 percentage points; PM2.5 concentration was 28 micrograms/cubic meter, a year -on -year decrease of 20.0%; the average concentration of O3 was 175 micrograms/cubic meter, an increase of 12.2%year -on -year.

The average percentage of excellent days in August in 41 cities in the Yangtze River Delta was 83.1%, a year -on -year decrease of 6.8 percentage points; PM2.5 concentration was 18 micrograms/cubic meters, a year -on -year decrease of 5.3%; the average concentration of O3 was 163 micrograms/cubic meter, an increase of rising year -on -year 7.2%. From January to August, the average number of excellent days was 80.6%, a year -on -year decrease of 6.0 percentage points; PM2.5 concentration was 30 micrograms/cubic meter, an increase of 3.4%year -on -year; the average concentration of O3 was 165 micrograms/cubic meter, a year -on -year increase of 7.8%.

The average number of excellent days in the 11 cities in the Fenwei Plain in August was 80.9%, an increase of 4.7 percentage points year -on -year; the PM2.5 concentration was 24 micrograms/cubic meters, a year -on -year decrease of 4.0%; the average concentration of O3 was 165 micrograms/cubic meter, a decrease of year -on -year decrease 7.8%. From January to August, the average number of excellent days was 62.3%, a year -on -year decrease of 3.3 percentage points; PM2.5 concentration was 42 micrograms/cubic meter, an increase of 5.0%year -on -year; the average concentration of O3 was 175 micrograms/cubic meter, a year -on -year decrease of 2.2%.

From January to August 2022, air quality comparison nationwide and key areas. Picture source: website of the Ministry of Ecology and Environment

In August, of the 168 key cities, the air quality in cities such as Haikou, Lhasa, and Guiyang City was relatively good (from the first place to the 19th place); No. 1 to the last 20).

Picture source: website of the Ministry of Ecology and Environment

From January to August, of the 168 key cities, the air quality in cities such as Haikou, Lhasa, and Zhoushan City was relatively good (from the first place to the 20th place); From the countdown to the 1st place to the penultimate number 19)