Dissipation pattern and risk assessment studies of triazophos residues on capsicum (Capsicum annuum L.) using GLC-FPD and GC-MS

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• 作者：Yadwinder Singh ; Kousik Mandal ; Balwinder Singh
• 关键词：Triazophos ; LOQ ; TMRC ; Residues ; Half ; life ; Capsicum
• 刊名：Environmental Monitoring and Assessment
• 出版年：2015
• 出版时间：October 2015
• 年：2015
• 卷：187
• 期：10
• 全文大小：1,070 KB
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• 作者单位：Yadwinder Singh (1)
  Kousik Mandal (1)
  Balwinder Singh (1)
  
  1. Pesticide Residue Analysis Laboratory, Department of Entomology, Punjab Agricultural University, Ludhiana, 141004, Punjab, India
  
• 刊物类别：Earth and Environmental Science
• 刊物主题：Environment
  Monitoring, Environmental Analysis and Environmental Ecotoxicology
  Ecology
  Atmospheric Protection, Air Quality Control and Air Pollution
  Environmental Management
  
• 出版者：Springer Netherlands
• ISSN：1573-2959

文摘

The present study was carried out to observe the dissipation pattern of triazophos on capsicum and risk assessment of its residues on human beings and to suggest a waiting period for the safety of consumers. Following two applications of triazophos (Truzo 40 EC) at 500 and 1000 g a.i.?ha?, the average initial deposits were found to be 3.61 and 6.26 mg kg?, respectively. These residues dissipated below the limit of quantification (LOQ) of 0.05 mg kg? in 10 and 15 days at the recommended and double the recommended dosages, respectively. The calculated values of half-life were 2.31 and 2.14 days at recommended and double the recommended dosages, respectively. Theoretical maximum residue contribution (TMRC) values were found to be 28.8 and 41.6 μg person? day? at 500 and 1000 g a.i.?ha?, respectively, and found to be below the maximum permissible intake on capsicum fruit on the 7th day. Therefore, a waiting period of 7 days is suggested for consumption of capsicum sprayed with triazophos at the recommended dosages. Keywords Triazophos LOQ TMRC Residues Half-life Capsicum