Assessment of Ecological Risk of Heavy Metals in Soil and Vegetables Contaminated by Wastewater in Changchun City

摘要

Wastewater irrigation as a water-saving measures,has played an irreplaceable role in China's economic development.Wastewater irrigation has a history of 40 years in Changchun City,but there are rarely neither reports on irrigation conditions and crop quality,nor the prediction and evaluation of wastewater irrigation on human health recent years.This research selects four wastewater irrigation areas named XiXin,SiJian-fang,JiJia and Yitong River in Changchun City,and monitor the heavy metal concentrations of Cu,Pb,Zn,Cd,Hg,Cr in soil and crops.