The number of good air quality days in 367 Chinese cities (2014–2024)
收藏科学数据银行2025-02-10 更新2026-04-23 收录
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https://www.scidb.cn/detail?dataSetId=07b46cc347e64e568bcba354f2f87160
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资源简介：
According to China’s Air Quality Standard (GB 3095-2012), an Air Quality Index (AQI) of ≤50 is classified as excellent, ≤100 as good, ≤150 as light pollution, ≤200 as moderate pollution, ≤300 as heavy pollution, and >300 as severe pollution. Using daily data from the China National Environmental Monitoring Center, we have compiled a dataset tracking the annual number of good air quality days (i.e., days with AQI ≤100) across 367 cities in China from 2014 to 2024. This dataset serves as a valuable resource for assessing and analyzing urban environmental quality.
提供机构：
中国科学院地理科学与资源研究所
创建时间：
2025-02-08
