Carbosulfan Residues in Chinese Kale after Spraying and their Consumption Risk, A Case Study at Vegetable Farm Area in Phonyang Sub-District, Wanghin District, Sisaket Province
Abstract
The objective of this study was to analyze carbosulfan residues in Chinese kale growing at vegetable farm area, Phonyang Sub - District, Wanghin District, Sisaket Province, by comparing between without washing and washing with water after spraying at day 1, 7 and 10. Health risk assessment from Chinese kale consumption was also conducted. The results found that carbosulfan residues in Chinese kale samples after spraying in day 1, 7 and 10 were 12.20, 1.74 and 1.59 mg/kg, respectively. The residues found in day 7 and 10 decreased significantly comparing with those in the first day of harvesting. After washing, carbosulfan residues in Chinese kale were found 2.70, 1.20 and 1.14 mg/kg, respectively. It showed decreased significantly only in the first day of harvesting. Comparing with the Maximum Residue Limit (MRLs), it was found that all detected residue levels were higher than the MRLs which set as 0.5 mg/kg. However, the consumption risk estimation in term of Hazard Quotient (HQ) showed that there was no risk from Chinese kale consumption in any period after carbosulfan spraying which HQ < 1.
Keywords : Carbosulfan residues ; Chinese kale ; Pesticide Use Behaviors ; Consumption risk
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