Chinanews client, Beijing, January 4th. The Beijing Municipal Bureau of Ecology and Environment reported on the 4th that Beijing’s air quality improvement has achieved a landmark and historic breakthrough, and the annual average concentration of fine particulate matter (PM2.5) in the atmospheric environment has been achieved for the first time. 30+", which is 38 micrograms/cubic meter.

The number of days with good air quality throughout the year was 276, more than one month more than the previous year.

Data map: The turret of the Forbidden City under the blue sky and white clouds is picturesque, attracting tourists to take pictures.

Image source: Visual China

Annual average concentration of PM2.5 achieves "30+" for the first time

　　According to reports, in 2020, the four major pollutants in Beijing’s atmospheric environment, including PM2.5, have all improved significantly year-on-year.

　　In 2020, the annual average concentrations of PM2.5, inhalable particulate matter (PM10), nitrogen dioxide and sulfur dioxide in Beijing will be 38 micrograms/m3, 56 micrograms/m3, 29 micrograms/m3 and 4 micrograms/m3 respectively.

　　Among them, the PM2.5 concentration achieved "30+" for the first time, further narrowing the gap with the national standard (35μg/m3); PM10 and nitrogen dioxide have reached the national standard (70μg/m3) for two consecutive years since 2019 , 40 micrograms/cubic meter); sulfur dioxide stably meets the national standard (60 micrograms/cubic meter).

　　According to the Beijing Municipal Bureau of Ecology and Environment, the people's sense of blue sky and happiness has been significantly enhanced, and the goal of the "13th Five-Year Plan" has been achieved. The three-year action plan for the defense of the blue sky has successfully concluded.

Beijing’s experience in air pollution control has been incorporated into the “practical case” of the United Nations Environment Program, providing reference for other cities around the world, especially cities in developing countries.

Data map: Beihai Park.

Photo by Zhao Rong Source: Visual China

The number of 3/4 days in the year is fine air, more than one month more than in 2019

　　In terms of the number of days with good air quality, in 2020, the number of days with good air quality in Beijing will be 276, an increase of 36 days from the previous year. The good and good rate reached 75.4%, an increase of 9.6 percentage points. The number of days with good air quality increased significantly.

　　This also means that in 2020, three-quarters of the days in Beijing will be fine-air days, and the "good days" are more than one month longer than last year.

　　In terms of classification, in 2020, Beijing’s air quality first-class days will be 106 days, 21 days more than the previous year, and second-class days will be 170 days, 15 days more than the previous year.

There will be no severe pollution days in 2020; severe pollution days will occur for 10 days, of which 7 days are the primary pollutant being PM2.5 and 3 days are ozone.

　　From the spatial distribution analysis, although the city's PM2.5, PM10 and nitrogen dioxide will still show a spatial distribution of "high in the south and low in the north" in 2020, the concentration gradient will decrease.

The gold content of Beijing's "blue sky" continues to increase

　　In recent years, the number of days with good air quality in Beijing has increased significantly. In 2020, the number of days with air quality reaching the standard will be 276, which is an increase of 100 days compared to 2013.

There has been a significant decline in the number of heavily polluted days. In 2020, the number of heavily polluted days will be 10 days, which is 48 days less than in 2013, a decrease of 82.8%.

　　The gold content of Beijing's "Blue Sky" is also continuously increasing.

　　In 2020, the number of days with good PM2.5 will reach 330, accounting for 90.2% of the total number of days in the year, an increase of 126 days from 2013, which is equivalent to 6.3 days out of 7 days per week on average in 2020. , And in 2013 only less than 4 days.

　　From 2013 to 2020, heavy PM2.5 air pollution in Beijing has also been significantly alleviated. There will be no heavy PM2.5 pollution for 322 consecutive days in 2020, and there will be no heavy PM2.5 pollution for up to 87 consecutive days in mid-2013, and the number of consecutive days without heavy pollution will increase. For 235 days.

　　According to the Beijing Municipal Bureau of Ecology and Environment, since 1998, with the rapid economic and social development of Beijing, the concentration of major pollutants in the air has shown a continuous decline.

Since 2004, sulfur dioxide has steadily reached the national secondary standard. From 2019 to 2020, both PM10 and nitrogen dioxide have reached the national secondary standard; currently PM2.5 still exceeds the national secondary standard by 8.6%, and continuous improvement of Beijing’s air quality is still needed keep trying.

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