This statistic shows the percentage of days with an air quality level of equal to or above Grade II of the Chinese ambient air quality standard in large cities in China in 2019. According to this measurement, the city of Tianjin had seen good air quality during approximately 60 percent of the year.
Percentage of days with good air quality in major Chinese cities in 2019
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National Bureau of Statistics of China. (December 15, 2020). Percentage of days with good air quality in major Chinese cities in 2019 [Graph]. In Statista. Retrieved June 10, 2024, from https://www.statista.com/statistics/300958/china-proportion-of-days-with-good-air-quality-by-city/
National Bureau of Statistics of China. "Percentage of days with good air quality in major Chinese cities in 2019." Chart. December 15, 2020. Statista. Accessed June 10, 2024. https://www.statista.com/statistics/300958/china-proportion-of-days-with-good-air-quality-by-city/
National Bureau of Statistics of China. (2020). Percentage of days with good air quality in major Chinese cities in 2019. Statista. Statista Inc.. Accessed: June 10, 2024. https://www.statista.com/statistics/300958/china-proportion-of-days-with-good-air-quality-by-city/
National Bureau of Statistics of China. "Percentage of Days with Good Air Quality in Major Chinese Cities in 2019." Statista, Statista Inc., 15 Dec 2020, https://www.statista.com/statistics/300958/china-proportion-of-days-with-good-air-quality-by-city/
National Bureau of Statistics of China, Percentage of days with good air quality in major Chinese cities in 2019 Statista, https://www.statista.com/statistics/300958/china-proportion-of-days-with-good-air-quality-by-city/ (last visited June 10, 2024)
Percentage of days with good air quality in major Chinese cities in 2019 [Graph], National Bureau of Statistics of China, December 15, 2020. [Online]. Available: https://www.statista.com/statistics/300958/china-proportion-of-days-with-good-air-quality-by-city/