Investigação e avaliação da toxicidade aguda dos agrotóxicos mais utilizados no cinturão verde da Grande Natal (RN, Brasil) para o peixe-zebra (Danio rerio Hamilton Buchanan, 1822, Teleostei, Cyprinidae / Investigation and Evaluation of the acute toxicity of the agricultural chemicals most used in the green belt of Natal (RN, Brasil) on the Zebrafish (Danio rerio Hamilton Buchanan-1822, Teleostei, Cyprinidae)

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

The objectives of this research were to investigate the agrotoxic most used in the Gramorezinho region in the green belt of Natal, and to evaluate the acute toxicity of these, based on the LC50-48h values estimated in tests for Danio rerio, internationally used as test organism. The acute toxicity tests were performed under laboratory conditions, according to standardized methods (ABNT/NBR/15088/04) for this species. The LC50-48h estimated to Tamaron BR was 352.89 mg.L-1, which characterizes that as practically non-toxic, according to toxicological classes cited by Zucker. For Decis 25EC, the LC50-48h estimated was 0.0004156 mg.L-1 (4.156 X 10-4 mg.L-1), which classifies it as highly toxic to this species

ASSUNTO(S)

acute toxicity and danio rerio toxicidade aguda e danio rerio decis 25ec tamaron br tamaron br decis 25ec ecologia de ecossistemas

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