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Pesticides in Drinking Water a?? The Brazilian Monitoring Program

机译：饮用水中的农药巴西监测计划

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Brazil is the world largest pesticide consumer; therefore, it is important to monitor the levels of these chemicals in the water used by population. The Ministry of Health coordinates the National Drinking Water Quality Surveillance Program (Vigiagua) with the objective to monitor water quality. Water quality data are introduced in the program by state and municipal health secretariats using a database called Sisagua (Information System of Water Quality Monitoring). Brazilian drinking water norm (Ordinance 2914/2011 from Ministry of Health) includes 27 pesticide active ingredients that need to be monitored every 6 months. This number represents <10% of current active ingredients approved for use in the country. In this work, we analyzed data compiled in Sisagua database in a qualitative and quantitative way. From 2007 to 2010, approximately 169,000 pesticide analytical results were prepared and evaluated, although approximately 980,000 would be expected if all municipalities registered their analyses. This shows that only 9–17% of municipalities registered their data in Sisagua. In this dataset, we observed non-compliance with the minimum sampling number required by the norm, lack of information about detection and quantification limits, insufficient standardization in expression of results, and several inconsistencies, leading to low credibility of pesticide data provided by the system. Therefore, it is not possible to evaluate exposure of total Brazilian population to pesticides via drinking water using the current national database system Sisagua. Lessons learned from this study could provide insights into the monitoring and reporting of pesticide residues in drinking water worldwide.
机译：巴西是世界上最大的农药消费国。因此，重要的是要监测人口使用的水中这些化学物质的水平。卫生部负责协调国家饮用水质量监督计划（Vigiagua），以监测水质。州和市政卫生秘书处使用名为Sisagua（水质监测信息系统）的数据库在计划中引入水质数据。巴西饮用水规范（卫生部第2914/2011号法令）包括27种农药活性成分，需要每6个月监测一次。这个数字代表该国批准使用的现行活性成分的不到10％。在这项工作中，我们以定性和定量的方式分析了在Sisagua数据库中汇编的数据。从2007年到2010年，准备并评估了大约169,000种农药的分析结果，但如果所有市政当局都注册分析，预计将达到980,000种。这表明只有9–17％的市政当局在Sisagua注册了其数据。在该数据集中，我们观察到不符合规范要求的最小抽样数量，缺少有关检测和定量限的信息，结果表达标准化不足以及几个不一致之处，导致系统提供的农药数据的可信度低。因此，不可能使用当前的国家数据库系统Sisagua来评估巴西总人口通过饮用水对农药的暴露程度。从这项研究中学到的经验教训可以提供有关监测和报告全世界饮用水中农药残留的见识。

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