Abstract:

Vegetable is one of the largest foods consumed, and their quality directly relates to the physical health of urban residents. In order to evaluate the heavy metal contamination and the safe levels of vegetables, 24 kinds of vegetables from two important vegetables wholesale markets of Qingdao were random sampled in different seasons, we measured and analyzed the contents of heavy metal and then evaluated single pollution index and comprehensive pollution index by the method of national food hygienic standard of China, and health risk assessment from intake of vegetables containing Pb and Cd was assessed. The result showed that the heavy metal pollution in winter vegetables in Qingdao was more serious than in spring, and relied mainly on the fact of Cd and Pb. Scallions had the highest concentration of Cd and Pb, and garlic reached the level of moderate pollution; The results of health risk assessment indicated that the Pb and Cd contents of vegetables has not produced the prominent risk to health of citizens in Qingdao.