The Comet Assay for the Evaluation of Genotoxic Potential of Landfill Leachate

Genotoxic assessment of landfill leachate before and after biological treatment was conducted with two human cell lines (Me45 and NHDF) and Daphnia magna somatic cells. The alkali version of comet assay was used to examine genotoxicity of leachate by DNA strand breaks analysis and its repair dynamic...

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Main Authors: Kamila Widziewicz, Joanna Kalka, Magdalena Skonieczna, Paweł Madej
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1100/2012/435239
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author Kamila Widziewicz
Joanna Kalka
Magdalena Skonieczna
Paweł Madej
author_facet Kamila Widziewicz
Joanna Kalka
Magdalena Skonieczna
Paweł Madej
author_sort Kamila Widziewicz
collection DOAJ
description Genotoxic assessment of landfill leachate before and after biological treatment was conducted with two human cell lines (Me45 and NHDF) and Daphnia magna somatic cells. The alkali version of comet assay was used to examine genotoxicity of leachate by DNA strand breaks analysis and its repair dynamics. The leachate samples were collected from Zabrze landfill, situated in the Upper Silesian Industrial District, Poland. Statistically significant differences (Kruskal-Wallice ANOVA rank model) were observed between DNA strand breaks in cells incubated with leachate before and after treatment (P<0.001). Nonparametric Friedman ANOVA confirmed time-reliable and concentration-reliable cells response to leachate concentration. Examinations of chemical properties showed a marked decrease in leachate parameters after treatment which correlate to reduced genotoxicity towards tested cells. Obtained results demonstrate that biological cotreatment of leachate together with municipal wastewater is an efficient method for its genotoxic potential reduction; however, treated leachate still possessed genotoxic character.
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spelling doaj-art-27d740277f23406bbaa23d5d27916d412025-02-03T07:23:33ZengWileyThe Scientific World Journal1537-744X2012-01-01201210.1100/2012/435239435239The Comet Assay for the Evaluation of Genotoxic Potential of Landfill LeachateKamila Widziewicz0Joanna Kalka1Magdalena Skonieczna2Paweł Madej3Institute of Water and Wastewater Engineering, Silesian University of Technology, Akademicka Street 2A, 44-100 Gliwice, PolandEnvironmental Biotechnology Department, Silesian University of Technology, Akademicka Street 2A, 44-100 Gliwice, PolandInstitute of Automatic Control, Silesian University of Technology, Akademicka Street 2A, 44-100 Gliwice, PolandEnvironmental Biotechnology Department, Silesian University of Technology, Akademicka Street 2A, 44-100 Gliwice, PolandGenotoxic assessment of landfill leachate before and after biological treatment was conducted with two human cell lines (Me45 and NHDF) and Daphnia magna somatic cells. The alkali version of comet assay was used to examine genotoxicity of leachate by DNA strand breaks analysis and its repair dynamics. The leachate samples were collected from Zabrze landfill, situated in the Upper Silesian Industrial District, Poland. Statistically significant differences (Kruskal-Wallice ANOVA rank model) were observed between DNA strand breaks in cells incubated with leachate before and after treatment (P<0.001). Nonparametric Friedman ANOVA confirmed time-reliable and concentration-reliable cells response to leachate concentration. Examinations of chemical properties showed a marked decrease in leachate parameters after treatment which correlate to reduced genotoxicity towards tested cells. Obtained results demonstrate that biological cotreatment of leachate together with municipal wastewater is an efficient method for its genotoxic potential reduction; however, treated leachate still possessed genotoxic character.http://dx.doi.org/10.1100/2012/435239
spellingShingle Kamila Widziewicz
Joanna Kalka
Magdalena Skonieczna
Paweł Madej
The Comet Assay for the Evaluation of Genotoxic Potential of Landfill Leachate
The Scientific World Journal
title The Comet Assay for the Evaluation of Genotoxic Potential of Landfill Leachate
title_full The Comet Assay for the Evaluation of Genotoxic Potential of Landfill Leachate
title_fullStr The Comet Assay for the Evaluation of Genotoxic Potential of Landfill Leachate
title_full_unstemmed The Comet Assay for the Evaluation of Genotoxic Potential of Landfill Leachate
title_short The Comet Assay for the Evaluation of Genotoxic Potential of Landfill Leachate
title_sort comet assay for the evaluation of genotoxic potential of landfill leachate
url http://dx.doi.org/10.1100/2012/435239
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