广东省部分地区市售龙眼中农药残留现状与膳食暴露评估

目的 调查广东省10个城市市售龙眼中农药残留现状并开展膳食暴露评估,为龙眼生产的合理用药及龙眼中农药残留限量的修订提供参考依据.方法 随机采购来自广东省10个城市的200份龙眼样品,对其中的50种农药残留进行检测.统计分析农药残留数据,采用风险熵值进行龙眼膳食暴露风险评估.结果 200份龙眼样品中,检出农药20种,其中...

Monitoring and risk assessment of pesticide residues in longan samples in several areas of Guangdong Province

Objective To inspect the pesticide residues in longan samples from 10 cities of Guangdong Province and evaluate the health risk of dietary exposure. These collected data were expected to be useful in regulating the concentration of the pesticide residues, and also in supporting safe consumption of longan fruit. Methods 200 longan samples were collected randomly and 50 kinds of pesticde residues were analyzed. The dietary exposure risk was assessed by risk entropy which based on the statistics of pesticide residues. Results 20 kinds of pesticide residues were found in 84.00%(168/200) of the samples, and carbendazim with detection ratio of 33.00%(66/200) was found to be in the highest frequencies of detected pesticides. Further results showed that 27.50%(55/200) samples contained two or more pesticides. For 20 kinds of pesticides with detectable residues, acceptable daily intake(%ADI) was in the range of 0.00% to 8.56%, which was less than 9.00%. The acute reference dose(%ARfD) was ranged from 0.02% to 70.00%, which was less than 100.00%. These 20 kinds of pesticides were divided into three groups namely high risk group (5), medium risk group (7), and low risk group (8) by considering the residue risk score. Conclusion Chronic dietary intake risk and acute dietary intake risk of pesticide residues were relatively low in longan from 10 cities of Guangdong Province, and normal consumption of longan would not cause adverse health effects.