Risk Assessment of Dietary Exposure of Procymidone and Dimethomorph for Facility Tomato in Pingliang City of Gansu Province

doi:10.11924/j.issn.1000-6850.casb2022-0743

Abstract

Abstract:

58 kinds of pesticides were determined by GC-MS/MS and LC-MS/MS in the five-year municipal routine monitoring task undertaken by Pingliang Agricultural Products Quality Safety Inspection and Testing Center of Gansu Province from 2017 to 2021. The test data showed that the qualified rates of the residues of procymidone and dimethomorph were 100% in 232 tomato samples, but the detection rates were 21.55% and 6.03%, respectively, which were higher than other pesticides. Among the detected humus pesticides, 54% of the residues were distributed in the range of 0.02-0.22 mg/kg, and 79% of the detected dimethomorph pesticides were distributed in the range of 0.0001-0.1001 mg/kg, the detected residues were relatively concentrated, and the highest detected values of the two pesticides were lower than the maximum residual value of the pesticide (MRL). The results showed that the risks of chronic dietary intake were 1.21% and 0.165%, respectively, which were far less than 100%. Acute dietary intake risks were 8.06% and 0.291%, respectively, far less than 100%, and both acute and chronic risks were within the acceptable range. The risk scores were 10.43 and 10.12, respectively, indicating that the residual risk was relatively low and at a low risk level.

Key words: facility tomato, procymidone, dimethomorph, risk assessment of dietary exposure

BAI Xinming, REN Jinping, BAI Xiaodong, FENG Wenxia, ZHANG Jimei. Risk Assessment of Dietary Exposure of Procymidone and Dimethomorph for Facility Tomato in Pingliang City of Gansu Province[J]. Chinese Agricultural Science Bulletin, 2023, 39(24): 143-148.

Figures/Tables 8

References 25

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类别	A：毒性(LD₅₀)		B：毒效(ADI)		C：膳食比例		D：农药使用频率		E：高暴露人群		F：残留水平
类别	定义	得分	定义	得分	定义	得分	定义	得分	定义	得分	定义	得分
Ⅰ	低毒	2	>0.01	0	<2.5	0	<2.5	0	否	0	ND	1
Ⅱ	中毒	3	0.0001~0.01	1	2.5~20	1	2.5~20	1	极少	1	<1MRL	2
Ⅲ	高毒	4	0.000001~0.0001	2	20~50	2	20~50	2	大部分	2	1~10MRL	3
Ⅳ	剧毒	5	<0.000001	3	50~100	3	50~100	3	不确定	3	>10MRL	4

类别	A：毒性(LD₅₀)		B：毒效(ADI)		C：膳食比例		D：农药使用频率		E：高暴露人群		F：残留水平
类别	定义	得分	定义	得分	定义	得分	定义	得分	定义	得分	定义	得分
Ⅰ	低毒	2	>0.01	0	<2.5	0	<2.5	0	否	0	ND	1
Ⅱ	中毒	3	0.0001~0.01	1	2.5~20	1	2.5~20	1	极少	1	<1MRL	2
Ⅲ	高毒	4	0.000001~0.0001	2	20~50	2	20~50	2	大部分	2	1~10MRL	3
Ⅳ	剧毒	5	<0.000001	3	50~100	3	50~100	3	不确定	3	>10MRL	4

蔬菜名称	检出农药	R/(mg/kg)	IFS
番茄	腐霉利	0.972	0.0453
番茄	烯酰吗啉	0.2107	0.0049

蔬菜名称	检出农药	R/(mg/kg)	IFS
番茄	腐霉利	0.972	0.0453
番茄	烯酰吗啉	0.2107	0.0049

农药种类	慢性风险商			急性风险商
农药种类	STMR/(mg/kg)	ADI值	%ADI	农药最大残留量	ARfD值	%ARfD
腐霉利	0.2644	0.1	1.21%	0.972	0.1	8.06%
烯酰吗啉	0.0717	0.2	0.165%	0.2107	0.6	0.291%