Assessment of toxicological profiles of the municipal wastewater effluents using chemical analyses and bioassays (CROSBI ID 167369)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Smital, Tvrtko ; Terzić, Senka ; Žaja, Roko ; Senta, Ivan ; Pivčević, Branka ; Popović, Marta ; Mikac, Iva ; Tollefsen, Knut Erik ; Thomas, Kevin. V. ; Ahel, Marijan
engleski
Assessment of toxicological profiles of the municipal wastewater effluents using chemical analyses and bioassays
The hazardous chemical contamination of untreated wastewater and secondary effluent from the wastewater treatment plant (WWTP) of the city of Zagreb, Croatia, was comprehensively characterised using large-volume solid-phase extraction (SPE) and silicagel fractionation followed by a detailed analysis of the resulting extracts by a combination of chemical and bioassay methods. Over 100 individual contaminants or closely related-contaminant groups were identified by high-resolution gas chromatography/mass spectrometry (GC/MS) and liquid chromatography/quadrupole time-of-flight mass spectrometry (LC-QTOF). Ecotoxicity profiling of the investigated samples, including cytotoxicity, chronic toxicity, EROD activity ; inhibition of the multixenobiotic resistance (MXR), genotoxicicity and estrogenic potential, revealed the most significant contribution of toxic compounds to be present in polar fractions. Wastewater treatment using conventional activated sludge process reduced the initial toxicity of raw wastewater to various extents, ranging from 28% for algal toxicity to 73.2% for estrogenic activity. The most efficient toxicity removal was observed for the polar compounds.
organic contaminants ; wastewater ; GC/MS ; LC/MS ; bioassays ; identification
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Podaci o izdanju
74 (4)
2011.
844-851
objavljeno
0147-6513
1090-2414
10.1016/j.ecoenv.2010.11.010