期刊
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
卷 28, 期 8, 页码 9824-9835出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-020-11428-1
关键词
Surface water; Groundwater; Risk assessment; Mixture toxicity; PCA; Human consumption
资金
- Sao Paulo State Research Support Foundation (FAPESP) [2015/18790-3, 2014/24740-6]
- Fund for Support to Teaching, Research and Outreach Activities (FAEPEX)
This study analyzed multiple pesticides in surface and groundwater in the largest sugar cane production region in the world. The results showed potential risks for aquatic life from certain pesticides and their mixtures, but no significant impact on human consumption was observed.
In this study, a multi-residue method was used to analyze 13 pesticides and 1 degradation product in surface and groundwater in the region with the largest sugar cane production in the world. The potential effects of individual pesticides and their mixtures, for aquatic life and human consumption, were evaluated. For the surface water, 2-hydroxy atrazine, diuron, carbendazim, tebuthiuron, and hexazinone were the most frequently detected (100, 94, 93, 92, and 91%, respectively). Imidacloprid (2579 ng L-1), carbendazim (1114 ng L-1), ametryn (1101 ng L-1), and tebuthiuron (1080 ng L-1) were found at the highest concentrations. For groundwater, tebuthiuron was the only quantified pesticide (107 ng L-1). Ametryn, atrazine, diuron, hexazinone, carbofuran, imidacloprid, malathion, carbendazim, and their mixtures presented risk for the aquatic life. No risk was observed for the pesticides analyzed in this work, alone or in their mixtures for human consumption.
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