[1] Ministry of Environmental Protection. GB 3095-2012 Ambient air quality standards. Beijing: China Environmental Science Press, 2016. http://www.mee.gov.cn/ywgz/fgbz/bz/bzwb/dqhjbh/dqhjzlbz/201203/W020120410330232398521.pdf. (In Chinese). http://www.mee.gov.cn/ywgz/fgbz/bz/bzwb/dqhjbh/dqhjzlbz/201203/W020120410330232398521.pdf
[2] Ministry of Environmental Protection. HJ 633-2012 Technical regulation on ambient air quality index (on trial). Beijing: China Environmental Science Press, 2016. http://www.mee.gov.cn/ywgz/fgbz/bz/bzwb/jcffbz/201203/W020120410332725219541.pdf. (In Chinese). http://www.mee.gov.cn/ywgz/fgbz/bz/bzwb/jcffbz/201203/W020120410332725219541.pdf
[3] Ministry of Environmental Protection. HJ 663-2013 Technical regulation for ambient air quality assessment (on trial). Beijing: China Environmental Science Press, 2013. http://www.mee.gov.cn/ywgz/fgbz/bz/bzwb/jcffbz/201309/W020131105548549111863.pdf. (In Chinese). http://www.mee.gov.cn/ywgz/fgbz/bz/bzwb/jcffbz/201309/W020131105548549111863.pdf
[4] Liu WQ, Chen ZY, Liu JG, Xie PH. Stereoscopic monitoring technology and applications for the atmospheric environment in China. Chin Sci Bull 2016;61(30):3196 − 207. http://engine.scichina.com/doi/10.1360/N972016-00394. (In Chinese). http://engine.scichina.com/doi/10.1360/N972016-00394
[5] Cai SY, Wang YJ, Zhao B, Wang SX, Chang X, Hao JM. The impact of the “Air Pollution Prevention and Control Action Plan” on PM2.5 concentrations in Jing-Jin-Ji region during 2012-2020. Sci Total Environ 2017;580:197 − 209. http://dx.doi.org/10.1016/j.scitotenv.2016.11.188CrossRef
[6] Zhang Q, Zheng YX, Tong D, Shao M, Wang SX, Zhang YH, et al. Drivers of improved PM2.5 air quality in China from 2013 to 2017. Proc Natl Acad Sci USA 2019;116(49):24463 − 9. http://dx.doi.org/10.1073/pnas.1907956116CrossRef
[7] Liu MX, Huang X, Song Y, Tang J, Cao JJ, Zhang XY, et al. Ammonia emission control in China would mitigate haze pollution and nitrogen deposition, but worsen acid rain. Proc Natl Acad Sci USA 2019;116(16):7760 − 5. http://dx.doi.org/10.1073/pnas.1814880116CrossRef
[8] Lu X, Zhang L, Wang XL, Gao M, Li K, Zhang YZ, et al. Rapid increases in warm-season surface ozone and resulting health impact in China Since 2013. Environ Sci Technol Lett 2020;7(4):240 − 7. http://dx.doi.org/10.1021/acs.estlett.0c00171CrossRef