Singh Shubhra, Dubey Jatiender Kumar, Katna Sapna, Sharma Ajay, Banshtu Tanuja, Devi Nisha, Brar Gaganpreet Singh, Singh Gagandeep, Kumar Arvind, Gautam Himani
Department of Entomology, Dr Yashwant, Singh Parmar University of Horticulture and Forestry Nauni, Solan, India.
R&D, Biology, PI Industries Limited, Udaipur, Rajasthan, India.
Environ Geochem Health. 2024 Jul 13;46(9):318. doi: 10.1007/s10653-024-02106-z.
Bell peppers, a globally significant crop, face infestations from various pests. In a study, bell peppers were treated with deltamethrin, ethion, fenazaquin, and fenpropathrin at recommended and double the doses, repeated twice with a 10-day interval. The QuEChERS method underwent validation for linearity, matrix match, accuracy, and precision in bell pepper matrices for residue analysis. The limit of detection for the tested pesticides on bell peppers was 0.01 mg/L, with a quantification limit of 0.05 mg/L. Recovery studies showed a range of 94.80% to 102.80%. Initial deposits of deltamethrin, ethion, fenazaquin, and fenpropathrin on bell peppers at recommended doses were 0.371, 1.237, 0.617, and 0.640 mg/L, respectively, and at double doses were 0.712, 1.945, 1.221, and 1.189 mg/L, respectively. Safe waiting periods of 10, 11, 10, and 8 days were suggested for deltamethrin, ethion, fenazaquin, and fenpropathrin, respectively. The corresponding half-lives for the pesticides were 1.96, 1.79, 2.06, and 1.69 days, all following first-order dissipation kinetics. Dietary risk assessment indicated Hazard Quotients (HQ) below 1 and Theoretical Maximum Daily Intake (TMDI) below Acceptable Daily Intake (ADI) and Maximum Permissible Intake (MPI) levels. Therefore, at their recommended doses, the pesticides were deemed safe for bell pepper cultivation.
甜椒是一种在全球具有重要意义的作物，面临着各种害虫的侵扰。在一项研究中，甜椒分别以推荐剂量和两倍推荐剂量用溴氰菊酯、乙硫磷、喹螨醚和甲氰菊酯进行处理，每隔10天重复处理两次。采用QuEChERS方法对甜椒基质中残留物分析的线性、基质匹配、准确度和精密度进行了验证。甜椒上所测农药的检测限为0.01mg/L，定量限为0.05mg/L。回收率研究显示回收率范围为94.80%至102.80%。溴氰菊酯、乙硫磷、喹螨醚和甲氰菊酯在甜椒上的推荐剂量初始沉积量分别为0.371、1.237、0.617和0.640mg/L，两倍剂量时分别为0.712、1.945、1.221和1.189mg/L。建议溴氰菊酯、乙硫磷、喹螨醚和甲氰菊酯的安全等待期分别为10天、11天、10天和8天。这些农药的相应半衰期分别为1.96天、1.79天、2.06天和1.69天，均符合一级消散动力学。膳食风险评估表明，危害商数（HQ）低于1，理论最大每日摄入量（TMDI）低于每日允许摄入量（ADI）和最大允许摄入量（MPI）水平。因此，在推荐剂量下，这些农药被认为对甜椒种植是安全的。
