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      Principais aspectos da poluição de rios brasileiros por pesticidas Translated title: Main aspects of the pollution in Brazilian rivers by pesticides

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          Abstract

          Os pesticidas utilizados na agricultura para combater pragas e doenças têm causado contaminação dos recursos hídricos cujas consequências são alterações nos ecossistemas e prejuízos à saúde, sobretudo quando as águas são utilizadas para consumo humano. A contaminação ocorre principalmente em áreas próximas aos locais de aplicação por deflúvio superficial ou contaminação do lençol freático. Alguns fatores que afetam o transporte para o meio aquático são as propriedades do agente químico e variáveis ambientais, como tipo de solo, declividade, presença de cobertura vegetal e clima; alguns desses fatores, como relevo planáltico e solo quartzoso, estão presentes em grande parte do país fazendo com que a poluição do meio aquático seja acentuada. A adoção de práticas agrícolas mais racionais pelos agricultores e medidas como proteção das matas ciliares, podem prevenir a contaminação por pesticidas dos recursos hídricos, sendo a forma mais eficiente de controle da poluição agrícola nas condições locais.

          Translated abstract

          Pesticides, which are used in agriculture for pest and disease control, has caused contamination of water resources. The consequences are changes in ecosystems and damage to health, especially when the waters are used for human consumption. The contamination occurs mainly in areas near the application site by surface runoff or groundwater contamination. Some factors affecting transport to the aquatic environment are the properties of the chemical and environmental conditions, such as soil type, slope, land cover and climate. Some factors such as plateau relief and quartzose soil are present in the most part of the country, causing the water pollution more severe. The adoption of more rational agricultural practices by farmers and measures for protection of riparian forests can prevent pesticide contamination of water resources, which consists in the most efficient control practice for agricultural pollution in the tropical regions.

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            Levantamento sistemático da produção agrícola

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              Diário Oficial da República Federativa do Brasil.

              (2010)
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Journal
                rbeaa
                Revista Brasileira de Engenharia Agrícola e Ambiental
                Rev. bras. eng. agríc. ambient.
                Departamento de Engenharia Agrícola - UFCG (Campina Grande )
                1807-1929
                December 2014
                : 18
                : 12
                : 1296-1301
                Affiliations
                [1 ] Universidade de São Paulo Brazil
                [2 ] Universidade de São Paulo Brazil
                Article
                S1415-43662014001200014
                10.1590/1807-1929/agriambi.v18n12p1296-1301
                ff92f5a9-9c25-44f6-aaa3-99448e737ceb

                http://creativecommons.org/licenses/by/4.0/

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                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=1415-4366&lng=en
                Categories
                AGRICULTURAL ENGINEERING
                ENVIRONMENTAL SCIENCES

                Agricultural engineering,General environmental science
                agriculture,water,residues,agrochemicals,herbicides,agricultura,água,agrotóxicos,resíduos,herbicidas

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