The Potential Ecological Risk Assessment of Heavy Metals on Both Sides of the Harbin City Road

With the soil which on the sides of the Harbin City road(Gongbin road,Xiangcheng road,Ha-Yaopu road)as the main research object.The heavy metal content in each of the soil sample Cu,Cd,Pb,Zn,Cr and Ni were determined by using flame atomic absorption spectrometry.Using the index of geoaccumulation law and potential risk as well as Songnen plain background value ratio as a parameter,assessed the heavy metals on the sides of the Harbin City road.The evaluation highway traffic in the soil caused by heavy metal pollution and potential ecological harm were studied in this paper.The results showed that content of the Cu,Cd,Pb,Zn,Cr and Ni was significantly higher than the background value.Cd and Pb reached secondary pollution level.The order of heavy metals pollution was ZnPbCdCrNiCu.The main pollution sources were heavy metals of the motor vehicle fuel,tires,mechanical contain trace elements.