关键词: 福建中北部海域, 捕捞水产品, 重金属, 风险评价, The central and northern waters of Fujian, fishing aquatic products, heavy metal, evaluation

Abstract: In order to understand the metal pollution and human health risk of fishing aquatic products, this article analyzed concentrations of Pb, Cd, Hg and inorganic arsenic in fishing aquatic products which included 160 samples and 18 species from the central and northern waters of Fujian during 2014 and 2015. Single factor pollution index ( Pi ) and metal pollution index ( MPI) were used to evaluate the degree of pollution, and provisional tolerable weekly intake ( PTWI) and carcinogenic risks were used to assess the edible safety and health risk，respectively. The results showed that the contents of Pb，Hg and inorganic arsenic in fishing aquatic products were in line with national standards，while the content of Cd reached the criteria of pollution，with the exceeding rate of 9.4% . Pi indicated that the fish was not obviously polluted by heavy metals， which was basically in good state，while Cd in 0ratosquilla and crab reached the criteria of “heavy pollution”and others were in good state. The MPI result showed that the heavy metal pollution in the shellfish was more serious than that in the fish. The edible safety assessment indicated that intake of four kinds of heavy metals by eating fishing aquatic products were lower than those formulated by FAO and JECFA monthly tolerable intake，but the Cd intake of a minority of shellfish was exceeded the PTWI value. The model estimation for health risk indicated that concentrations of heavy metal did not exceed the recommended maximum acceptable levels set by International Commission on Radiological Protection ( ICRP) . 0verall，although fishing aquatic products in Fujian Province can be safely consumed，potential risk of Cd still calls for further attention.