Atmospheric transmission rule on air pollution in Beijing-Tianjin-Hebei urban agglomeration: A comparative analysis of two emission inventories
WANG Yuan1, LI Yue1, QIAO Zhi1, LU Ya-ling1,2
1. School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China; 2. Chinese Academy for Environmental Planning, Beijing 100012, China
Abstract:In this study, the Weather Research and Forecasting (WRF) model coupled with the California Puff (CALPUFF) air quality model was applied to study the effects of different emission inventories on the regional contribution of atmospheric transmission in the Beijing-Tianjin-Hebei urban agglomeration under heavy pollution weather conditions. The results of four pollutants was compared (NOx, SO2, PM2.5 and PM10) from two sets of typical emission inventories (the Environmental Statistics Emission Inventory from government and the Multi-resolution Emission Inventory for China (MEIC) from Qinghua University). From the perspective of the spatial distribution of the simulated concentrations, the results based on the two sets of emission inventories in December 2012 were similar. The concentration of pollutants under two emission inventories showed a central distribution, with Tangshan as the centre in north and Shijiazhuang-Handan as centre in the south. However, there were still some significant differences in the transmission roles of some cities based on different emission inventory inputs. For example, for the four pollutants, the transmission direction between Cangzhou and its surrounding cities were completely opposite under the two emission inventories. Cangzhou was the relativer source city among the thirteen cities based on the MEIC emissions inventories. However, based on Environmental Statistics Emission Inventory, Cangzhou was a receptor city. These conclusions will affect the identification of the source and receptors cities in air pollution joint prevention and control. In environmental management, we should pay attention to the verification and comparison of different emissions inventories.
王媛, 李玥, 乔治, 卢亚灵. 京津冀城市群大气污染传输规律研究——两组排放清单的比较分析[J]. 中国环境科学, 2019, 39(11): 4561-4569.
WANG Yuan, LI Yue, QIAO Zhi, LU Ya-ling. Atmospheric transmission rule on air pollution in Beijing-Tianjin-Hebei urban agglomeration: A comparative analysis of two emission inventories. CHINA ENVIRONMENTAL SCIENCECE, 2019, 39(11): 4561-4569.
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