%0 Journal Article
%T Characterization and Source Apportionment of Pollutants in Urban Roadway Runoff in Chongqing<br>重庆市路面降雨径流特征及污染源解析
%A ZHANG Qian-qian
%A WANG Xiao-ke
%A HAO Li-ling
%A HOU Pei-qiang
%A OUYANG Zhi-yun
%A <br>张千千
%A 王效科
%A 郝丽岭
%A 侯培强
%A 欧阳志云
%J 环境科学
%D 2012
%I 
%X By investigating surface runoff from urban roadway in Chongqing, we assessed the characteristics of surface runoff pollution and the effect of rainfall intensity and antecedent dry weather period on water quality. Using multivariate statistical analysis of data of runoff quality, potential pollutants discharged from urban roadway runoff were identified. The results show that the roadway runoff has high levels of COD, TP and TN, the EMC were 60.83-208.03 mg·L-1, 0.47-1.01 mg·L-1 and 2.07-5.00 mg·L-1 respectively, being the main pollutants; The peaks of pollutant concentration are ahead of or synchronous with the peak of runoff volume; the peaks of pollutant concentrations are mostly occurred within 10 minutes of rainfall. The heavy metal concentrations fluctuate dentately during runoff proceeding. Two potential pollution sources to urban roadway runoff apportioned by using principal component analysis are: vehicle's traffic loss and atmospheric dry and wet deposition, and municipal wastes.
%K storm runoff
%K pollution sources
%K initial flushing
%K event mean concentration(EMC)
%K principal component analysis<br>降雨径流
%K 污染源
%K 初始冲刷
%K 次降雨平均浓度(EMC)
%K 主成分分析
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=4189763B19B8AD45196083BAC95E361A&yid=99E9153A83D4CB11&vid=27746BCEEE58E9DC&iid=CA4FD0336C81A37A&sid=228A710F49B6CE58&eid=0D0D661F0B316AD5&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=26