Evaluation of Heavy Metal Pollution in Soil and Vegetables around Jinzhou Ferroalloy Factory

The pollution status of heavy metal in soil and vegetables was studied around Jinzhou Ferroalloy Factory existing for more than 70 years.Sixty soil samples and 120 vegetable samples including 40 root vegetables,40 fruiting vegetables and 40 leaf vegetables were collected.After the samples were dissolved,an ICP-AES was used to determine the contents of Pb,Ni,Cu,Cr,Zn,Cd,As and Hg.Then the heavy metal pollution was evaluated by the Nemerow pollution index,and the comprehensive indexes were 2.48 and 1.82 in soil and vegetables respectively.The soil was moderately polluted and the vegetable was lightly polluted.The pollution of Cr,Ni and Zn in soil was serious and the contents of Pb,Cu,As,Cd and Hg were also over the standard.The levels of heavy metal pollution were higher in fruiting vegetables,leaf vegetables and root vegetables in turn.When a heavy metal seriously polluted soil,its pollution to vegetable was serious too.