TY - JOUR
T1 - High loadings and source strengths of organic aerosols in China
AU - Wang, Gehui
AU - Kawamura, Kimitaka
AU - Watanabe, Tomomi
AU - Lee, Shuncheng
AU - Ho, Kinfai
AU - Cao, Junji
PY - 2006/11/28
Y1 - 2006/11/28
N2 - 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 midwest region during winter (up to 125 μg m-3organic 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.
AB - 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 midwest region during winter (up to 125 μg m-3organic 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.
UR - http://www.scopus.com/inward/record.url?scp=34548563814&partnerID=8YFLogxK
U2 - 10.1029/2006GL027624
DO - 10.1029/2006GL027624
M3 - Journal article
SN - 0094-8276
VL - 33
JO - Geophysical Research Letters
JF - Geophysical Research Letters
IS - 22
M1 - L22801
ER -