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http://dx.doi.org/10.5338/KJEA.2022.41.2.14

Residual Characteristics and Risk Assessments of Metalaxyl-M and Dinotefuran in Crown Daisy  

Song, Min-Ho (Department of Crop Science, College of Sang-Huh Life Science, Konkuk University)
Yu, Ji-Woo (Department of Crop Science, College of Sang-Huh Life Science, Konkuk University)
Kim, Jinchan (Bio Division, Korea Conformity Laboratories)
Lee, Kwanghun (Bio Division, Korea Conformity Laboratories)
Ko, Rakdo (Bio Division, Korea Conformity Laboratories)
Keum, Young-Soo (Department of Crop Science, College of Sang-Huh Life Science, Konkuk University)
Lee, Jiho (Department of Crop Science, College of Sang-Huh Life Science, Konkuk University)
Publication Information
Korean Journal of Environmental Agriculture / v.41, no.2, 2022 , pp. 108-114 More about this Journal
Abstract
BACKGROUND: This study was performed to determine residual characteristics of soil-treated metalaxyl-M and dinotefuran in crown daisy and to evaluate the risks from intake of the residual pesticides in the crop. METHODS AND RESULTS: The pesticide granules were treated in soil on two levels, and the plants samples were collected 51 days after seeding. The analytes were extracted and partitioned using the QuEChERS extraction packet (MgSO4 4 g, NaCl 1 g). The quantitative methods for metalaxyl-M and dinotefuran were validated in linearity, accuracy, and precision. Risk assessments of the pesticides were performed using Korea national nutrition statistics 2019. CONCLUSION(S): The residual concentrations of metalaxyl-M in crown daisy were 0.09-0.10 mg/kg (for the treatment at 6 kg/10 a) and 0.17-0.19 mg/kg (12 kg/10 a), respectively. The residual concentrations of dinotefuran in the crop were 0.53-0.75 mg/kg (3 kg/10 a) and 1.17-1.26 mg/kg (6 kg/10 a). The amounts of pesticides were less than MRL (Maximum Residue Limits) according to the Korean MFDS (Ministry of Food and Drug Safety). The HI (Hazard Index) of metalaxyl-M and dinotefuran for consumers was 0.0075% and 0.2250%, respectively. For females in the age between 50-64, the major consumer group, the HIs of the pesticides were <3%. Considering the consumption of crown daisy, they are not considered to be of toxicological concern.
Keywords
Crown daisy; Dinotefuran; Metalaxyl-M; Residue; Risk assessment;
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Times Cited By KSCI : 9  (Citation Analysis)
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