摘要
通过在雨季和旱季各2次典型降雨期间对邛海滨湖公路路面径流连续采样监测,结果表明,该路面径流的主要污染因子为SS、COD、TP、TN和Pb,旱季的径流污染程度较雨季重,主干路的路面径流污染最严重。因子分析表明,路面径流的主要污染因子为重金属和营养盐,其方差贡献率分别为64. 546%和13. 596%。潜在生态风险评估表明,路面径流中重金属平均潜在生态风险处于轻微级别,6种重金属中除Pb在主干路达到中等风险外,其余均为轻微风险。
Based on water quality monitoring in Qionghai Lakeside road runoff from 2 typical rains in rainy and dry season each, the result showed that the major pollutants were suspended solids(SS), chemical oxygen demand(COD), total phosphorus(TP), total nitrogen(TN) and lead(Pb). Meanwhile the pollution in dry season was more serious than that in rainy season, and the pollution from the main road runoff was the most serious. Based on factor analysis, the major pollution factors were heavy metals and nutrients, whose variance contribution rate were 64.546% and 13.596%, separately. Potential ecological risk evaluation showed the average value of RI was low, and the ecological risk coefficient ( E i ) of Pb reached to moderate risk level, while the other five heavy metals were in low risk.
作者
王雪梅
王青青
邓远明
胡金朝
WANG Xue-mei;WANG Qing-qing;DENG Yuan-ming;HU Jin-zhao(College of Environment Science,Xichang College,Xichang,Sichuan 615013,China)
出处
《环境监测管理与技术》
CSCD
2018年第5期40-44,共5页
The Administration and Technique of Environmental Monitoring
基金
四川省教育厅基金资助项目(15ZB0230)
四川省科技支撑基金资助项目(15ZC0648)
关键词
路面径流
重金属
污染特征
生态风险评价
邛海滨湖公路
Road runoff
Heavy metals
Pollution characteristics
Ecological risk assessment;Qionghai Lakeside road