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Drivers of improved PM2.5 air quality in China from ... - …
www.pnas.organd Forecasting Model–Community Multiscale Air Quality Model (WRF-CMAQ) (20, 21) was then applied to simulate var-iations in PM 2.5 concentrations from 2013 to 2017, separate the contributions of anthropogenic and meteorological factors to PM 2.5 variations, and quantify measure-specific air quality improvements (SI Appendix, section S2 and ...