Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/6341
Title: High loadings and source strengths of organic aerosols in China
Authors: Wang, G
Kawamura, K
Watanabe, T
Lee, SC 
Ho, KF
Cao, J
Keywords: Chinese organic aerosols
Spatial and seasonal distributions
Molecular compositions
Issue Date: Nov-2006
Publisher: John Wiley and Sons
Source: Geophysical research letters, Nov. 2006, v. 33, no. 22, L22801 How to cite?
Journal: Geophysical research letters 
Abstract: Nation-wide studies of organic aerosols were conducted on a molecular level in 15 Chinese cities. The results showed strikingly high levels of organic compounds (e.g., annual concentrations of polycyclic aromatic hydrocarbons, phthalates, sugars and diacids are 110, 370, 400 and 830 ng m ⁻³, respectively), especially in the mid-west region during winter (up to 125 μg m ⁻³ organic carbon). Fossil fuel combustion and/or biomass burning products are 3−30 times more abundant in winter than in summer. In contrast, significant quantity of phthalates (168−2200 ng m ⁻³) was detected in summer. Concentrations of the pollutants are generally 1−3 orders of magnitude higher than those in developed countries. Their source strengths are characterized in winter by fossil fuel combustion, followed by secondary oxidation, plant wax emissions and biomass burning, whereas in summer by secondary oxidation, followed by fossil fuel combustion and plastic emissions.
URI: http://hdl.handle.net/10397/6341
ISSN: 0094–8276 (print)
1944–8007 (online)
DOI: 10.1029/2006GL027624
Rights: Copyright 2006 by the American Geophysical Union.
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