Long-term variation of satellite-based PM2.5 and influence factors over East China.

ABSTRACT: With the explosive economic development of China over the past few decades, air pollution has attracted increasing global concern. Using satellite-based PM_2.5 data from 2000 to 2015, we found that the available emissions of atmospheric compositions show similar yearly variation trends to PM_2.5, even if the synchronization is not met for each composition, implying that the intensity of anthropogenic emissions dominates the temporal variation of PM_2.5 in East China. Empirical orthogonal function analysis demonstrates that the dominant variability in the seasonal PM_2.5 is closely associated with climate circulation transformation, incarnated as the specific climate index such as the Asia Polar Vortex intensity in spring, the Northern Hemisphere Subt

SUBMITTER: He Q 

PROVIDER: S-EPMC6078948 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature