Regulamentação do registro de agrotoxicos : abordagem da avaliação da exposição e do risco toxicologico ocupacional

AUTOR(ES)
DATA DE PUBLICAÇÃO

2002

RESUMO

The exposure assessment is part of the assessment process of health risk for the regulation of pesticides products in many countries. The toxicological evaluation risk of agricultural workers exposed to pesticides during its use is done through 3 stages (tier approach) proposed by the OECD. It is through this evaluation that the security of the product is verified associated with the evaluation of the exposure with its toxicological information. The realization of this process in the pre-commercialization of pesticides is the first stage in the prevention of possible health risk. The exposure, or better the quantity and quality relation of the workers contact with the pesticide, can be estimated through predictable models or through empirical studies. The predictable models (estimate exposure through surrogate data) are used in the first stage of the evaluation process of the risk. During this assessment, if the risk calculated is acceptable, with a good safety margin for the exposure, no further investigation takes place. But on the other hand if the risk calculated is not accepted than the authority requires an empirical study to be made as to the exposure of the product. In Brazil, the legislation of the pesticides and derivates requires only a revision of its hazards through a toxicological evaluation and not its risk assessment. The tools and information for the execution of the process are available and it would be good if they were discussed towards its realization and capabilities

ASSUNTO(S)

saude ambiental pesticidas - toxicologia

ACESSO AO ARTIGO

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