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Publication
Contaminação ambiental por pesticidas: análise metodológica
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Advisor(s)
Abstract(s)
Este trabalho teve como objectivo pesquisar os pesticidas que são mais usados em
Portugal, os métodos de análise mais frequentemente utilizados na determinação de
pesticidas, a contaminação ambiental por pesticidas e como minimizar o impacto ambiental
provocado pelo uso indiscriminado de pesticidas.
Os pesticidas usados variam de acordo com as diferentes características das regiões
de Portugal e os grupos de pesticidas mais usados são: organofosforados, derivados de
anilina, derivados triazinicos, tiocarbamatos, derivados do ácido fenoxiacético, derivados de
acetamida, benzotiadiazole, derivados de ureia e azol. A determinação destes grupos é
usualmente feita usando métodos cromatográficos, uma vez que estes métodos permitem a
separação de misturas complexas.
A contaminação ambiental por pesticidas pode ser provocada por diversos factores,
contudo esta contaminação pode ser minimizada se estes forem usados de forma racional e
de um modo sustentável conforme o descrito na directiva 2009/128/CE de 21 de Outubro.
This study aimed to investigate the pesticides that are commonly used in Portugal, the analysis methods most often used in the determination of pesticides, environmental contamination by pesticides and to minimize the environmental impact caused by the indiscriminate use of pesticides. The pesticides used vary with the different characteristics of the Portuguese regions and the main groups of pesticides commonly used in these regions include: organophosphates, derived from aniline, derivatives from triazine, thiocarbamate, phenoxyacetic acid derivatives, derivatives of acetamide, benzothiadiazole, urea derivatives and azole. A determination of these groups is usually done using chromatographic methods, since these methods allow separation of complex mixtures. Environmental contamination by pesticides can be caused by several factors, but this contamination can be minimized if they are used rationally and in a sustainable manner as described in the Directive of 21 October 2009/128/CE.
This study aimed to investigate the pesticides that are commonly used in Portugal, the analysis methods most often used in the determination of pesticides, environmental contamination by pesticides and to minimize the environmental impact caused by the indiscriminate use of pesticides. The pesticides used vary with the different characteristics of the Portuguese regions and the main groups of pesticides commonly used in these regions include: organophosphates, derived from aniline, derivatives from triazine, thiocarbamate, phenoxyacetic acid derivatives, derivatives of acetamide, benzothiadiazole, urea derivatives and azole. A determination of these groups is usually done using chromatographic methods, since these methods allow separation of complex mixtures. Environmental contamination by pesticides can be caused by several factors, but this contamination can be minimized if they are used rationally and in a sustainable manner as described in the Directive of 21 October 2009/128/CE.
Description
Keywords
Pesticidas Métodos analíticos Contaminação ambiental Impacto ambiental Uso sustentável Pesticides Analytical methods Environmental contamination Environmental impact Sustainable use
Citation
Publisher
Instituto Politécnico do Porto. Instituto Superior de Engenharia do Porto