Spatial characterization of periodic behaviors of ground PM2.5 concentration across the Yangtze River Delta and the North China Plain during 2014–2024: A new insight on driving processes of regional air pollution

Fine particulate matter (PM2.5) has long been the major air pollutant across China, but its periodic behaviors are still not comprehensively understood at a regional scale. Spatial characterization of the periodic behaviors can sufficiently extract the spatiotemporal information of PM2.5 time series...

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