PHYSICO chemical properties and toxicological effect of landfill groundwaters and leachates.

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ID: 97750
2020
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Abstract
Waste landfills represent a global problem, which is more pronounced in developing countries because of the lack of resources to implement procedures that include separation and waste processing. The aim of this research was to analyze leachate and ground waters samples at the site, upstream and downstream from the landfill during different year seasons on a registered non-hazardous waste dump and to conduct physico-chemical and biological assays to determine potential risk for the ecosystem. Potential cytotoxic, prooxidative and mutagenic effects of leachates and water samples were evaluated on human laryngeal cell line (HEp2). Leachates collected at landfill site caused genotoxic effect and had a higher pH, chemical oxygen demand (COD), biochemical oxygen demand (BOD) and elevated concentrations of phosphorus, chloride, nitrogen compounds and sulphate. Genotoxicity of the leachate was increased in samples collected in dry and warm period of the year. These results are in accordance to the physico-chemical analysis which revealed that during summer period, because of intense degradation process at high temperatures increased concentrations of different chemicals can be found in leachate. Groundwater collected downstream and upstream from landfill did not show statistically significant (geno)toxic effect, irrespective of the sampling season. Chemical analysis revealed that all compounds in groundwater were below permitted values. Purification process at landfill is effective and compounds that reach groundwater do not represent a toxicological threat.
Reference Key
ani2020physicochemosphere Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Ančić, Mario;Huđek, Ana;Rihtarić, Iva;Cazar, Mario;Bačun-Družina, Višnja;Kopjar, Nevenka;Durgo, Ksenija;
Journal Chemosphere
Year 2020
DOI
S0045-6535(19)31798-9
URL
Keywords
genotoxicity landfill groundwater contamination physico-chemical analysis

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