Risk Assessment of Heavy Metals Pollution in 9 Small Vegetable Varieties of Guizhou Province

HU Sheng;YUAN Xu;PANG Hong-yu;LI Jun;LUO Hua-lan;LIU Fang;Guizhou Provincial Supervision and Testing Center for Agricultural Product Quality,Supervision and Testing Center for Agricaltural Product Quality,Ministry of Agriculture (Guiyang);

small vegetable varieties;;heavy metals;;health risk assessment

By collecting 9 kinds of vegetable samples from different regions of Guizhou province,to explore the Pb,Cd,Hg,As pollution of 9 vegetable varieties,analysis health risks of four kinds of heavy metals to human body. The results showed that the heavy metal Hg,Pb,Cd and As of the short species vegetables in Guizhou province were lower than 3%,and the risk was lower; To a certain extent,four kinds of heavy metal pollution cross contamination,the poluttion of Coriandrum sativum L.,Chrysanthemum coronarium L.and Allium schoenoprasum is relatively serious,effect of Cucurbita moschata( Duch. ex Lam.) Duch. ex Poiret and Luffa cylindrica( L.) Roem. is relatively less contaminated by heavy metals; By clustering analysis and calculated exposure risk index shows,Coriandrum sativum L.,Chrysanthemum coronarium L. and Allium schoenoprasum have greater risk than other vegetables,but the average content did not exceed the MRL value,the overall risk is smaller,the value of,Cd,and HQ of 9 kinds of vegetables,Hg,Pb and As,health risks can be accepted.