Food Safety Risk Assessment of the Heavy Metals in Aquatic Products in Tianjin
Abstract: Heavy metal pollution situation and intake risk of aquatic products were studied in Tianjin. A total of 124 of four kinds of aquatic products were sampled in April, May, June 2014. The concentrations of Cr, As, Cd, Hg, Pb in edible muscles were measured by ICP-MS. Single factor pollution index and metal pollution index were used to evaluate the degree of pollution, and the dietary heavy metal exposure from aquatic products and the health risk were assessed by Oracle Crystal Ball based on Monte Carlo simulation method. MPI results showed that heavy metal pollution in crustacean was the most severe, followed by marine fish, mollusc and freshwater fish. The mean contents of Cr are 0.3200 mg/kg, As being 1.3443 mg/kg, Cd being 0.0516 mg/kg, Hg being 0.0127 mg/kg and Pb being 0.2016 mg/kg. The contents of As reached the criteria of Heavy Pollution; Cd in crustacean and freshwater fish belonged to Moderate Pollution, Light Pollution in marine fish; Pb in crustacean belonged to Moderate Pollution, Light Pollution in marine fish and mollusc; Cr in marine fish belonged to Light Pollution. Risk as-sessment results showed that the average of risk quotient of Cr, As, Cd, Hg, Pb by dietary intake of aquatic was less than 1, within acceptable levels, while high levels of exposure As at the 95th percentile, 97.5th percentile and 99th percentile were higher than 1, indicating that the dietary exposure of heavy metals only by aquatic consumption was probably to bring about severe health risk, which should attract the attention of residents.
文章引用: 顾海宁 , 胡哲斌 , 陈 晨 , 霍苗苗 , 王俊平 (2017) 天津市水产品重金属安全风险评估。 食品与营养科学， 6， 1-8. doi: 10.12677/HJFNS.2017.61001
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