Evaluation of the toxic and genotoxic potential of landfill leachates using bioassays

被引：74

作者：

Bortolotto, Tiago ^{[1
]}

Bertoldo, Jean Borges ^{[1
]}

da Silveira, Fernanda Zanette ^{[1
]}

Defaveri, Tamires Manganelli ^{[1
]}

Silvano, Jacira ^{[2
]}

Pich, Claus Troeger ^{[1
]}

机构：

[1] Univ Extremo Sul Catarinense, Dept Ciencias Biol, GPIG, BR-88806000 Criciuma, SC, Brazil

[2] Univ Extremo Sul Catarinense, IPAT, BR-88806000 Criciuma, SC, Brazil

来源：

ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY | 2009年 / 28卷 / 02期

关键词：

Landfill leachates; Toxicity; Genotoxicity; Mutagenesis; Comet assay; COMET ASSAY; CHEMICAL OXIDATION; ROOT-TIPS; DAMAGE; MECHANISMS; REMOVAL; METALS; SLUDGE; MOUSE; CELLS;

D O I：

10.1016/j.etap.2009.05.007

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Landfill leachates are liquid effluents with elevated concentrations of chemical compounds that can cause serious environmental pollution. In the south of the state of Santa Catarina, Brazil, a sanitary landfill was installed that employs a system of anaerobic/facultative lagoons for the treatment of its leachate. The present work examined the toxic and genotoxic potential of untreated and treated landfill leachates using bioassays. The chemical, toxic,genotoxic and mutagenic properties of the untreated leachate and the treated leachate were determined. Examination of the chemical properties showed a marked decrease in parameters after treatment, as well as in toxicity towards all the organisms tested. The results of the comet assay demonstrated that both leachates showed genotoxicity in all of the organisms tested, indicating the persistence of genotoxic substances even after treatment. A significant decrease in micronucleated cells was detected in Geophagus brosiliensis exposed to the treated leachate compared to untreated. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：288 / 293

页数：6

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