Pesticides in the surface waters of the Camanducaia River watershed, Brazil
| Autor: | Jussara Borges Regitano, Robson Rolland Monticelli Barizon, Ricardo de Oliveira Figueiredo, Vera Lúcia Ferracini, Debora Renata Cassoli de Souza Dutra |
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| Rok vydání: | 2019 |
| Předmět: |
Water pumping
Pollution Watershed Chromatography Gas Agrochemical media_common.quotation_subject River watershed Water source Fresh Water 010501 environmental sciences 01 natural sciences Rivers Limit of Detection Tandem Mass Spectrometry Pesticides 0105 earth and related environmental sciences media_common Hydrology business.industry Agriculture 04 agricultural and veterinary sciences General Medicine Pesticide Diuron 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Environmental science Atrazine Seasons POLUIÇÃO DA ÁGUA business Brazil Water Pollutants Chemical Food Science Environmental Monitoring |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| ISSN: | 1532-4109 |
| Popis: | Camanducaia River is part of the Piracicaba watershed responsible for pumping water into the Cantareira System, which is one of the main water sources for the metropolis of São Paulo and Campinas, Brazil. Intensive use of pesticides and hilly topography represents a situation of high risk for river water contamination. Therefore, water samples from 12 locations were collected along the Camanducaia River and its tributaries, over a period of 4 mo during the rainy season, and analyzed by GC-MS/MS or UPLC- MS/MS for the presence of 46 pesticides. Seven pesticides (fipronil, methyl parathion, metolachlor, atrazine, carbofuran, diuron, and simazine) were positively detected. Only atrazine (the most frequently detected) and diuron were present at concentrations above the limit of quantification of the analytical method (0.32 and 0.57 μg L |
| Databáze: | OpenAIRE |
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