南方五省辣椒农药残留膳食暴露风险评估

为了促进辣椒产业的良性发展和维护消费者生命健康安全,本研究分别使用确定性、概率性和累积暴露评估方法评估了2016年我国南方5省辣椒中农药残留的膳食暴露风险。确定性方法的结果表明6种农药对8组人群的急慢性暴露量仅占安全阈值的0.0%～12.0%;考虑到累积暴露风险的问题,本文还评估了吡虫啉和啶虫脒的累积暴露风险并与两种农药单一暴露风险(概率性暴露评估)的结果进行了比较,结果表明两种农药的急慢性累积暴露量仅占安全阈值的0.90%～33.32%,但要高于各自的单一暴露量;同时三种方法的结果皆表明辣椒中6种农药残留对儿童的暴露风险要高于其他人群。综上,2016年我国南方5省辣椒中6种农药残留对8类人群的急慢性膳食暴露风险皆可接受。

Risk assessment of dietary exposure to pesticide residues inpepper in five provinces of southern China

To ensure the benign development of pepper industry and the life health safety of consumers, this study assessed the risks of dietary exposure to pesticide residues in pepper in five provinces of southern China in 2016 by using deterministic, probabilistic and cumulative exposure risk assessment method. Deterministic method showed that the acute and chronic exposures to the six pesticides were 0.0%-12.0% of the safety thresholds towards the eight human subgroups. In view of the cumulative exposure, this study assessed the cumulative risk of imidacloprid and acetamiprid, and the values of cumulative risk were compared with those of single risk. The results showed that the cumulative exposures were 0.90%-33.32% of the safety thresholds towards the eight human subgroups, and higher than respective single exposures; the three methods all showed that the risks to the children were higher than to other subgroups. In conclusion, the acute and chronic exposure risks of the six pesticide residues in pepper from five provinces of southern China in 2016 were all acceptable to the eight subgroups.