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首页> 外文期刊>Environmental Science & Technology >Pesticide Residue Transfer in Thai Farmer Families: Using Structural Equation Modeling To Determine Exposure Pathways
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Pesticide Residue Transfer in Thai Farmer Families: Using Structural Equation Modeling To Determine Exposure Pathways

机译：泰国农民家庭中农药残留的转移：使用结构方程模型确定暴露途径

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摘要

Use of pesticides in agriculture may lead to downstream exposure of farmers' families to pesticide residues inadvertently taken home. Identification of the independent contribution of different exposure pathways from the farmer to their children can provide clear targets to reduce exposure of formers' children. Individual contributions of different pesticide transfer exposure pathways were investigated using structural equation modeling methods, and the benefits of these methods compared to standard multiple regression are described. A total of 72 Thai families, consisting of a farmer, a spouse, and a child, participated in this study. Family members completed a questionnaire and self-collected three spot morning urine samples in the spraying season. Urine samples were analyzed for diethyl phosphate, diethyl thiophosphate, diethyl dithiophosphate, dimethyl phosphate, dimethyl thiophosphate, and dimethyl dithiophosphate. A path model was developed based on an a priori hypothesized framework to examine the individual contributions of different exposure pathways that may directly or indirectly affect transfer of pesticide residues from farmers to their children. Transfer from the farmer to the child occurs indirectly, primarily through transfer to the spouse in the first instance, but also through contamination of the home environment. Clear targets for interventions are directly the reduction of formers' take-home exposures and indirectly frequent cleaning of the home to avoid buildup of pesticide residues.
机译：在农业中使用农药可能会导致农民家庭下游暴露于无意带回家的农药残留。确定从农民到子女的不同接触途径的独立贡献，可以提供明确的目标，以减少前者子女的接触。使用结构方程建模方法研究了不同农药转移接触途径的个体贡献，并说明了这些方法与标准多元回归相比的优势。共有72个泰国家庭（包括一个农民，一个配偶和一个孩子）参加了这项研究。家属填写了一份调查表，并在喷洒季节自行收集了三份早晨尿样。分析尿液样品中的磷酸二乙酯，硫代磷酸二乙酯，二硫代磷酸二乙酯，磷酸二甲酯，硫代磷酸二甲酯和二硫代磷酸二甲酯。基于先验假设框架开发了路径模型，以检查不同暴露途径的个体贡献，这些途径可能直接或间接影响农药残留从农民向子女的转移。从农民到孩子的转移是间接发生的，主要是通过首先转移到配偶，也包括对家庭环境的污染。明确的干预目标是直接减少前者的带回家暴露量，并间接地经常清洁房屋以避免积累农药残留。

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  • 来源
    《Environmental Science & Technology》 |2015年第1期|562-569|共8页
  • 作者

    Hanhua Liu; Chalalai Hanchenlaksh; Andrew C. Povey; Frank de Vocht;

  • 作者单位

    Centre for Occupational and Environmental Health, The University of Manchester, Manchester M13 9PL, United Kingdom;

    Centre for Occupational and Environmental Health, The University of Manchester, Manchester M13 9PL, United Kingdom,Institute of Medicine, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand;

    Centre for Occupational and Environmental Health, The University of Manchester, Manchester M13 9PL, United Kingdom;

    Centre for Occupational and Environmental Health, The University of Manchester, Manchester M13 9PL, United Kingdom,School of Social and Community Medicine, University of Bristol, Bristol BS8 2PS, United Kingdom;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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