Effect of decing salts on ion concentrations in urban stormwater runoff

摘要：

　　Stormwater draining from impervious surfaces in urban areas often contains readily soluble salts in runoff,which contribute dramatically to the degradation of aquatic ecosystem.The concentrations of potassium (K),cadmium (Ca),sodium (Na),magnesium (Mg),chloride (Cl) and sulfate (SO42-) in stormwater runoff in the urban areas of Shenyang city were measured in 4 rainfall events during July 2009 to June 2010.The results showed that there was an obvious increasing of salt ions concentrations in stormwater runoff samples,especially Na and Cl.It is also found that readily soluble salts ions in stormwater runoff peaked at the first storm event after winter.This study demonstrated that the applied deicing salts in winter significantly contributed to the increasing concentrations of K,Ca,Na,Mg,Cl,and SO42-in urban stormwater runoff.It is evident that the application of deicing salts in cold regions of China every year has had adverse impacts on the aquatic ecology through stormwater runoff.

关键词： Deicing salts Urban stormwater runoff Ion concentrations Northeastern China

作者: Ying Zhang Tingting Sun Fayun Li Jinlong Wang Kokyo Oh

作者单位: School of Environmental Science, Liaoning University, Shenyang 110036, China;Institute of Eco-enviro School of Environmental Science, Liaoning University, Shenyang 110036, China Department of Natural Environmental Science, Center for Environmental Science in Saitama, Saitama 91

会议类型: 国际会议

会议名称: 2013 International Symposium on Environmental Science and Technology(2013环境科学与技术国际会议)

会议地点: 大连

会议语种:英文

页码: 448-451

在线出版日期: 2013-06-04（万方平台首次上网日期，不代表论文的发表时间）