Abstract:A parameter aimed to evaluate pollutants advective transport intensity was designed based on the residence time field of backword trajectory and pollutants emission intensity field. The parameter was evaluated by using the data of CO (carbon monoxide) and O3 (ozone) from June to August 2011 in Bright Summit of Mt Huang, and then the contributions of pollutants advective transport to this site were calculated. The potential source distributions of O3, which was assorted into three bins of O3 levels were investigated by a modified potential source contribution function (PSCF). Results showed that the advective transport parameters well reproduced the variation of CO and O3 concentrations respectively, indicating that advective transport played great impact on the change of CO and O3 at the site. The transport intensities of urban regions surrounding the border of Anhui,Hubei and Jiangxi province account for more than half of total intensities. The potential sources of O3 bins (>55×10-9, (30~55)×10-9, <30×10-9)at Bright Summit were mainly attributed to developed industrial zones in North China and Yangtze River Delta, industrial zones in the southwest and south and east China Sea, respectively. There were four advective transport types during the observations, which were classified into transport from crop residue burning, developed industrial zones, air masses originated from southwest and air masses originated from ocean. The CO/O3 concentration ratios (×10-9) of the four transport types were 474.47/72.50, 221.16/57.71, 86.31/30.41 and 51.67/27.45, respectively.
张磊, 金莲姬, 朱彬, 银燕. 2011年6~8月平流输送对黄山顶污染物浓度的影响[J]. 中国环境科学, 2013, 33(6): 969-978.
ZHANG Lei, JIN Lian-Ji, ZHU Bin, YIN Yan. The influence of advective transport on the concentrations of pollutants at the top of mountain Huangshan from June to August, 2011.. CHINA ENVIRONMENTAL SCIENCECE, 2013, 33(6): 969-978.