Occurrence of agrochemicals in surface waters of shallow soils and steep slopes cropped to tobacco
| Autor: | Letícia Sequinatto, José Miguel Reichert, Danilo Rheinheimer dos Santos, Dalvan José Reinert, André Carlos Cruz Copetti |
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| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Química Nova, Vol 36, Iss 6, Pp 768-772 (2013) |
| Druh dokumentu: | article |
| ISSN: | 1678-7064 0100-4042 |
| DOI: | 10.1590/S0100-40422013000600004 |
| Popis: | Tobacco cultivation in shallow soils and steep landscape under intense use of agrochemicals contributes to environment degradation. In this study, we assessed the concentration of agrochemicals in draw wells used for human consumption and a creek in a small catchment predominantly cropped to tobacco. Chlorpyrifos, flumetralin, and iprodione were determined by gas chromatography with electron capture detection, while imidalcloprid, atrazine, simazine, and clomazone were quantified by high-performance liquid chromatography with UV detection. Considering all sampling sites, all agrochemicals were detected at least once, except for flumetralin. The occurrence of agrochemicals in tobacco crops is a consequence of their fast transfer to surface water. |
| Databáze: | Directory of Open Access Journals |
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