Articles | Volume 15, issue 22
Atmos. Chem. Phys., 15, 13133–13144, 2015
https://doi.org/10.5194/acp-15-13133-2015
Atmos. Chem. Phys., 15, 13133–13144, 2015
https://doi.org/10.5194/acp-15-13133-2015

Research article 27 Nov 2015

Research article | 27 Nov 2015

Estimating ground-level PM2.5 in eastern China using aerosol optical depth determined from the GOCI satellite instrument

J.-W. Xu et al.

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1. GOCI (Geostationary Ocean Color Imager) retrieval of AOD is consistent with AERONET AOD (RMSE=0.08-0.1) 2. GOCI-derived PM2.5 is in significant agreement with in situ observations (r2=0.66, rRMSE=18.3%) 3. Population-weighted GOCI-derived PM2.5 over eastern China for 2013 is 53.8 μg/m3, threatening the health of its more than 400 million residents 4. Secondary inorganics (SO42-, NO3-, NH4+) & organic matter are the most significant components of GOCI-derived PM2.5.
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