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https://open.uns.ac.rs/handle/123456789/32384
Nаziv: | Toxicological and chemical investigation of untreated municipal wastewater: Fraction- and species-specific toxicity | Аutоri: | Hrubik Jelena Glišić Branka Tubic Aleksandra Ivancev Ivana Kovacevic Radmila Samardžija Dragana Andrić Nebojša Kaisarevic (Zoric) Sonja |
Dаtum izdаvаnjа: | 2016 | Čаsоpis: | Ecotoxicology and Environmental Safety | Sažetak: | © 2016 Elsevier Inc. Absence of a municipal wastewater (WW) treatment plant results in the untreated WW discharge into the recipient. The present study investigated toxic effects and chemical composition of water extracts and fractions from untreated WW and recipient Danube River (DR). Samples were prepared by solid-phase extraction and silica gel fractionation and screened for EROD activity and cytotoxicity using aquatic models, comprising of fish liver cells (PLHC-1) and a model of the early development of zebrafish embryos, while rat (H4IIE) and human (HepG2) hepatoma cells served as mammalian models. Polar fraction caused cytotoxicity and increased the EROD activity in PLHC-1 cells, and increased mortality and developmental abnormalities in developing zebrafish embryos. In H4IIE, polar fraction induced inhibition of cell growth and increased EROD activity, whereas HepG2 exerted low or no response to the exposure. Non-polar and medium-polar fractions were ineffective. Tentative identification by GC/MS showed that WW is characterized by the hydrocarbons, alkylphenols, plasticizers, and a certain number of benzene derivatives and organic acids. In DR, smaller number of organic compounds was identified and toxicity was less pronounced than in WW treatments. The present study revealed the potent toxic effect of polar fraction of untreated WW, with biological responses varying in sensitivity across organisms. Obtained results confirmed that fraction- and species-specific toxicity should be considered when assessing health risk of environmental pollution. | URI: | https://open.uns.ac.rs/handle/123456789/32384 | ISSN: | 0147-6513 | DOI: | 10.1016/j.ecoenv.2016.01.018 |
Nаlаzi sе u kоlеkciјаmа: | PMF Publikacije/Publications |
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