摘要
天津市区景观水体的水质普遍较差,其中降雨径流污染是影响河道生态环境的主要因素之一,为此对天津市区降雨径流的污染特征及其对受纳景观水体的影响进行了研究。结果表明,示范泵站汇集的降雨径流中的主要污染物为浊度、SS、TN、粪大肠菌群、汞、阴离子表面活性剂,污染物主要来源于路面径流;降雨结束后,示范河道的溶解氧浓度显著降低,COD、镉、铅、Cr6+、阴离子表面活性剂和粪大肠菌群的浓度均有不同程度的增加,且COD、Cr6+、阴离子表面活性剂和粪大肠菌群的浓度都超过了《地表水环境质量标准》(GB3838—2002)的Ⅴ类标准。
The water quality of landscape rivers in Tianjin was generally Worse, and one of the main factors was rainfall runoff pollution. Therefore, the characteristics of rainfall runoff pollution and its influence on receiving landscape water body were investigated. The results show that the main pollutants in the demonstration pump station are turbidity, suspended solids, total nitrogen, fecal coliforms, mercury and anionic surfactants. Most of the pollutants are originated from road runoff mainly. After the rainfall, dissolved oxygen is obviously decreased, and the concentrations of chemical oxygen demand, cadmium, lead, hexavalent chromium, anionic surfactants and fecal coliforms are increased in the demonstration river. And also the concentrations of chemical oxygen demand, hexavalent chromium, anionic surfactants and fecal coliforms exceed the V criteria specified in the Environmental Quality Standards for Surface Water （ GB 3838 - 2002）.
出处
《中国给水排水》
CAS
CSCD
北大核心
2010年第15期51-53,共3页
China Water & Wastewater
基金
国家水体污染控制与治理科技重大专项(2008ZX07314-004)
关键词
降雨径流
污染特征
景观河道
rainfall runoff
pollution characteristic
landscape river
