Satellite-derived 1-km estimates and long-term trends of PM2.5 concentrations in China from 2000 to 2018

Qingqing He,Kai Gao,Lei Zhang,Yimeng Song,Ming Zhang

Environment International（2021）

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摘要

•Generated daily 1-km PM2.5 estimates across China in historical years of 2000–2018.•Proposed a more advanced statistical method with adaptive model structures.•Improved coverage of daily MAIAC 1-km AOD by a customized fusion method.•Estimates gained higher precision by a strict validation and comparison method.•Conducted a multi-scale spatiotemporal trend and PM2.5 exposure analysis.

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关键词

Fine particulate matter (PM2.5),Satellite remote sensing,Adaptive spatiotemporal modeling,Long-term trend,High spatiotemporal resolution

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