期刊论文详细信息
Genetics and Molecular Biology
Toxicity and genotoxicity of wastewater from gasoline stations
Cynthia R. Oliveira-martins2  Cesar K. Grisolia1 
[1] ,Agência Nacional do PetróleoBrasília DF ,Brazil
关键词: Allium cepa;    chromosomal aberrations;    gas station;    micronucleus;    Oreochromis niloticus;   
DOI  :  10.1590/S1415-47572009005000094
来源: SciELO
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【 摘 要 】

The toxicity and genotoxicity of wastewater from eight gasoline stations in Brasília, Brazil's capital city, was studied by assessing chromosomal aberrations, chromosomal malsegregation and the mitotic index in Allium cepa root cells, and the occurrence of micronucleus and nuclear abnormalities in peripheral erythrocytes of tilapia fish (Oreochromis niloticus). The content of gasoline station effluents was also analyzed based on several physico-chemical parameters. None of the wastewater samples was genotoxic to A. cepa root cells, although cell proliferation was significantly inhibited, especially at the highest concentrations. Likewise, no micronuclei were observed in O. niloticus peripheral erythrocytes, even after exposure to high concentrations, but there was an increase in the number of nuclear abnormalities and fish mortality. These results show that although the effluent from gasoline stations is processed by an oil/water separation system before being discharged into the main sewage system, the wastewater still contains toxic compounds.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License

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