In 2017, Lhasa and Kunming had the best air quality among major cities in China, with only about one percent of the days indicating air pollution of an AQI grade of 3 or worse. The air quality improved in nearly all Chinese major cities in China between 2013 and 2017.
Annual percentage of days with polluted air in China in 2013 and 2017, by city
All provincial capital cities and directly administered cities in China are included in the given table.
Days with polluted air refers to all days with an Air Quality Index (AQI) worse or equal to grade 3.
The air quality index (AQI) in China has six levels based on the amounts of six atmospheric pollutants. Up to level two, air quality is considered acceptable.
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APF Canada. (September 18, 2020). Annual percentage of days with polluted air in China in 2013 and 2017, by city [Graph]. In Statista. Retrieved November 20, 2024, from https://www.statista.com/statistics/881015/days-per-year-with-good-air-quality-in-china-by-city/
APF Canada. "Annual percentage of days with polluted air in China in 2013 and 2017, by city." Chart. September 18, 2020. Statista. Accessed November 20, 2024. https://www.statista.com/statistics/881015/days-per-year-with-good-air-quality-in-china-by-city/
APF Canada. (2020). Annual percentage of days with polluted air in China in 2013 and 2017, by city. Statista. Statista Inc.. Accessed: November 20, 2024. https://www.statista.com/statistics/881015/days-per-year-with-good-air-quality-in-china-by-city/
APF Canada. "Annual Percentage of Days with Polluted Air in China in 2013 and 2017, by City." Statista, Statista Inc., 18 Sep 2020, https://www.statista.com/statistics/881015/days-per-year-with-good-air-quality-in-china-by-city/
APF Canada, Annual percentage of days with polluted air in China in 2013 and 2017, by city Statista, https://www.statista.com/statistics/881015/days-per-year-with-good-air-quality-in-china-by-city/ (last visited November 20, 2024)
Annual percentage of days with polluted air in China in 2013 and 2017, by city [Graph], APF Canada, September 18, 2020. [Online]. Available: https://www.statista.com/statistics/881015/days-per-year-with-good-air-quality-in-china-by-city/
