Original title: Conghua, Zengcheng, and Huadu had the best air quality last year
Guangzhou Daily (all-media reporter Du Juan) On the 5th, the Municipal Ecological Environment Bureau announced the environmental air quality status of Guangzhou from January to December 2021. In 2021, the six pollutants in Guangzhou’s ambient air will all meet the standards again in 2020, achieving continuous and full compliance with ambient air quality. Among the 11 districts in the city, the top 3 districts with the best air quality are Conghua, Zengcheng, and Huadu.
Monitoring shows that in 2021, Guangzhou will achieve continuous and full compliance with ambient air quality. The annual average values of PM2.5, PM10 and nitrogen dioxide all reached the annual targets set by the province. Ambient air comprehensive index was 3.58, a year-on-year increase of 1.1%; air quality reached the standard for 323 days, and the proportion of days meeting the standard was 88.5%.
The average PM2.5 was 24 micrograms/m3, an increase of 4.3% year-on-year; the average PM10 was 46 micrograms/m3, an increase of 7.0% year-on-year; the average nitrogen dioxide was 34 micrograms/m3, a year-on-year decrease of 5.6%; sulfur dioxide The average value is 8 micrograms/m3, an increase of 14.3% year-on-year; the ozone concentration is 160 micrograms/m3, which is the same year-on-year; the carbon monoxide concentration is 1.0 mg/m3, which is the same year-on-year.
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