Drivers of improved PM_2.5 air quality in China from 2013 to 2017.

ABSTRACT: From 2013 to 2017, with the implementation of the toughest-ever clean air policy in China, significant declines in fine particle (PM_2.5) concentrations occurred nationwide. Here we estimate the drivers of the improved PM_2.5 air quality and the associated health benefits in China from 2013 to 2017 based on a measure-specific integrated evaluation approach, which combines a bottom-up emission inventory, a chemical transport model, and epidemiological exposure-response functions. The estimated national population-weighted annual mean PM_2.5 concentrations decreased from 61.8 (95%CI: 53.3-70.0) to 42.0 µg/m³ (95% CI: 35.7-48.6) in 5 y, with dominant contributions from anthropogenic emission abatements. Although interannual meteorological variations co

SUBMITTER: Zhang Q 

PROVIDER: S-EPMC6900509 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature