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PLoS One. 2015 Jan 28;10(1):e0117311. doi: 10.1371/journal.pone.0117311. eCollection 2015.

The impact of winter heating on air pollution in China.

Author information

1
Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America.
2
Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America; State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, China.
3
Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America; State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University, Beijing, China.

Abstract

Fossil-fuel combustion related winter heating has become a major air quality and public health concern in northern China recently. We analyzed the impact of winter heating on aerosol loadings over China using the MODIS-Aqua Collection 6 aerosol product from 2004-2012. Absolute humidity (AH) and planetary boundary layer height (PBL) -adjusted aerosol optical depth (AOD*) was constructed to reflect ground-level PM2.5 concentrations. GIS analysis, standard statistical tests, and statistical modeling indicate that winter heating is an important factor causing increased PM2.5 levels in more than three-quarters of central and eastern China. The heating season AOD* was more than five times higher as the non-heating season AOD*, and the increase in AOD* in the heating areas was greater than in the non-heating areas. Finally, central heating tend to contribute less to air pollution relative to other means of household heating.

PMID:
25629878
PMCID:
PMC4309400
DOI:
10.1371/journal.pone.0117311
[Indexed for MEDLINE]
Free PMC Article

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