In October, the air quality rankings of key cities are announced, which is your hometown?Fly into the homes of ordinary people
On November 19, the Ministry of Ecology and Environment notified the national environmental air quality status in October 2021 and January-October.
The report pointed out that in October, the average number of days with good air quality in 339 prefecture-level and above cities across the country was 93.7%, an increase of 1.5% year-on-year; the average PM2.5 concentration was 26 micrograms/cubic meter, a year-on-year decrease of 13.3%. From January to October, the average number of good days in 339 prefecture-level and above cities across the country was 87.5%, a decrease of 0.2 percentage points year-on-year; the average concentration of PM2.5 was 28 micrograms/m3, a year-on-year decrease of 6.7%.
List of top 20 and bottom 20 cities for air quality in 168 key cities in October
The report announced the top 20 and bottom 20 air quality of 168 key cities in October and January-October. In October, among the 168 key cities, 20 cities including Haikou, Lhasa, and Ziyang have relatively good air quality (from 1st to 20th), while 20 cities including Xinxiang, Heze and Puyang have relatively poor air quality (From bottom to bottom to tied for bottom 20).
From January to October, among the 168 key cities, 20 cities including Haikou, Lhasa and Huangshan have relatively good air quality (from 1st to 20th), while 20 cities including Linfen, Taiyuan and Tangshan have relatively better air quality Poor (from bottom 1 to tie 20).
List of top 20 and bottom 20 cities in air quality ranking of 168 key cities from January to October
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