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Residues of pesticides and some metabolites in dissolved and particulate phase in surface stream water of Cachapoal River basin, central Chile.
Climent, María José; Herrero-Hernández, Eliseo; Sánchez-Martín, María Jesús; Rodríguez-Cruz, María Sonia; Pedreros, Pablo; Urrutia, Roberto.
Afiliação
  • Climent MJ; Faculty of Environmental Sciences & EULA Center, Universidad de Concepción, Barrio Universitario s/n, 4030000, Concepción, Chile; Center for Water Resources for Agriculture and Mining (CRHIAM), Universidad de Concepción, Victoria 1295, 4030000, Concepción, Chile.
  • Herrero-Hernández E; Institute of Natural Resources and Agrobiology of Salamanca, IRNASA-CSIC, c/ Cordel de Merinas, 40-52, 37008, Salamanca, Spain. Electronic address: elihh@usal.es.
  • Sánchez-Martín MJ; Institute of Natural Resources and Agrobiology of Salamanca, IRNASA-CSIC, c/ Cordel de Merinas, 40-52, 37008, Salamanca, Spain.
  • Rodríguez-Cruz MS; Institute of Natural Resources and Agrobiology of Salamanca, IRNASA-CSIC, c/ Cordel de Merinas, 40-52, 37008, Salamanca, Spain.
  • Pedreros P; Faculty of Environmental Sciences & EULA Center, Universidad de Concepción, Barrio Universitario s/n, 4030000, Concepción, Chile; Center for Water Resources for Agriculture and Mining (CRHIAM), Universidad de Concepción, Victoria 1295, 4030000, Concepción, Chile.
  • Urrutia R; Faculty of Environmental Sciences & EULA Center, Universidad de Concepción, Barrio Universitario s/n, 4030000, Concepción, Chile; Center for Water Resources for Agriculture and Mining (CRHIAM), Universidad de Concepción, Victoria 1295, 4030000, Concepción, Chile.
Environ Pollut ; 251: 90-101, 2019 Aug.
Article em En | MEDLINE | ID: mdl-31071637
In the last twenty years, pesticide use in Chile has increased more than 160%, generating a greater risk of water resources pollution. The objective of this study was to assess the presence of 22 pesticides and 12 degradation products in surface water samples from the Cachapoal River basin, Central Chile, an area characterized by intense agricultural activity. Pesticide concentrations in the dissolved phase (DP) and particulate phase (PP) in samples collected in the dry season and after precipitation events was assessed. The solid-phase extraction technique was used to preconcentrate the samples and GC/MS and LC/MS were used to detect pesticides. The results present spatio-temporal variations in the proportion and concentration of pesticides and their degradation products in both the DP and PP for each site and sampling period. The most ubiquitous compounds in the dissolved phase were atrazine, atrazine-2-hydroxy (HA), cyprodinil, pyrimethanil, and tebuconazole, while in the particulate phase HA, imidacloprid, diazinon and pyrimidinol were detected. The results presented in this study make up the first record of pesticides in the dissolved and particulate phases in surface water in Chile. They show that the problem of pesticide contamination undoubtedly affects the quality of bodies of water in agricultural areas in Chile and support the need for a proper assessment of the water quality of the Cachapoal River in the future.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Praguicidas / Poluentes Químicos da Água / Monitoramento Ambiental País/Região como assunto: America do sul / Chile Idioma: En Revista: Environ Pollut Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Chile País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Praguicidas / Poluentes Químicos da Água / Monitoramento Ambiental País/Região como assunto: America do sul / Chile Idioma: En Revista: Environ Pollut Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Chile País de publicação: Reino Unido