Articles | Volume 11, issue 9
Atmos. Chem. Phys., 11, 4105–4120, 2011
Atmos. Chem. Phys., 11, 4105–4120, 2011

Research article 04 May 2011

Research article | 04 May 2011

Emission inventory of anthropogenic air pollutants and VOC species in the Yangtze River Delta region, China

C. Huang1, C. H. Chen1, L. Li1, Z. Cheng2, H. L. Wang1, H. Y. Huang1, D. G. Streets3, Y. J. Wang4, G. F. Zhang1, and Y. R. Chen1 C. Huang et al.
  • 1Shanghai Academy of Environmental Sciences, Shanghai 200233, China
  • 2Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China
  • 3Argonne National Laboratory, Argonne, Illinois 60439, USA
  • 4School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China

Abstract. The purpose of this study is to develop an emission inventory for major anthropogenic air pollutants and VOC species in the Yangtze River Delta (YRD) region for the year 2007. A "bottom-up" methodology was adopted to compile the inventory based on major emission sources in the sixteen cities of this region. Results show that the emissions of SO2, NOx, CO, PM10, PM2.5, VOCs, and NH3 in the YRD region for the year 2007 are 2392 kt, 2293 kt, 6697 kt, 3116 kt, 1511 kt, 2767 kt, and 459 kt, respectively. Ethylene, mp-xylene, o-xylene, toluene, 1,2,4-trimethylbenzene, 2,4-dimethylpentane, ethyl benzene, propylene, 1-pentene, and isoprene are the key species contributing 77 % to the total ozone formation potential (OFP). The spatial distribution of the emissions shows the emissions and OFPs are mainly concentrated in the urban and industrial areas along the Yangtze River and around Hangzhou Bay. The industrial sources, including power plants other fuel combustion facilities, and non-combustion processes contribute about 97 %, 86 %, 89 %, 91 %, and 69 % of the total SO2, NOx, PM10, PM2.5, and VOC emissions. Vehicles take up 12.3 % and 12.4 % of the NOx and VOC emissions, respectively. Regarding OFPs, the chemical industry, domestic use of paint & printing, and gasoline vehicles contribute 38 %, 24 %, and 12 % to the ozone formation in the YRD region.

Final-revised paper