Química Nova | |
Ocorrência de agrotóxicos em águas subterrâneas de áreas adjacentes a lavouras de arroz irrigado | |
Diecson Ruy Orsolin Da Silva2  Luis Antonio De Avila2  Dirceu Agostinetto2  Angela Da Cas Bundt2  Ednei Gilberto Primel1  Sergiane Souza Caldas1  | |
[1] ,Universidade Federal de Pelotas Departamento de Fitossanidade Pelotas RS ,Brasil | |
关键词: contamination; environmental fate; residues; | |
DOI : 10.1590/S0100-40422011000500004 | |
来源: SciELO | |
【 摘 要 】
The objective this study was to monitor pesticide residues in groundwater at three different times and in seven regions producing rice in southern Brazil, in the 2007/08 season. Imazethapyr and fipronil were found in all regions studied. All groundwater samples from the Planície Costeira Interna to Lagoa dos Patos and Santa Catarina contained at least one pesticide. The lowest number of contaminated samples were detected in the Southern region. The highest frequency of contaminated samples was found after drainage of the rice fields. Only fipronil exceeded limits of potability, in 27% of samples, according European Community criteria.
【 授权许可】
CC BY-NC
All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License
【 预 览 】
Files | Size | Format | View |
---|---|---|---|
RO202103040063577ZK.pdf | 218KB | download |