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https://open.uns.ac.rs/handle/123456789/17496
Nаziv: | Impact of untreated wastewater on a major European river evaluated with a combination of in vitro bioassays and chemical analysis | Аutоri: | König M Escher B Neale P Krauss M Hilscherova K. Novák J Teodorović Ivana Schulze T. Seidensticker S Hashmi MAK Ahlheim J Brack W. |
Dаtum izdаvаnjа: | 2017 | Čаsоpis: | Environmental Pollution | Sažetak: | © 2016 Elsevier Ltd Complex mixtures of micropollutants, including pesticides, pharmaceuticals and industrial chemicals emitted by wastewater effluents to European rivers may compromise the quality of these water resources and may pose a risk to ecosystem health and abstraction of drinking water. In the present study, an integrated analytical and bioanalytical approach was applied to investigate the impact of untreated wastewater effluents from the city of Novi Sad, Serbia, into the River Danube. The study was based on three on-site large volume solid phase extracted water samples collected upstream and downstream of the untreated wastewater discharge. Chemical screening with liquid chromatography high resolution mass spectrometry (LC-HRMS) was applied together with a battery of in vitro cell-based bioassays covering important steps of the cellular toxicity pathway to evaluate effects on the activation of metabolism (arylhydrocarbon receptor AhR, peroxisome proliferator activated receptor gamma PPARγ), specific modes of action (estrogen receptor ERα, androgen receptor AR) and adaptive stress responses (oxidative stress, inflammation). Increased effects, significantly changed contamination patterns and higher chemical concentrations were observed downstream of the wastewater discharge. A mass balance approach showed that enhanced endocrine disruption was in good agreement with concentrations of detected hormones, while only a smaller fraction of the effects on xenobiotic metabolism (<1%) and adaptive stress responses (0–12%) could be explained by the detected chemicals. The chemical and effects patterns observed upstream of the discharge point were fairly re-established at about 7 km downstream, demonstrating the enormous dilution capacity of this large river. | URI: | https://open.uns.ac.rs/handle/123456789/17496 | ISSN: | 0269-7491 | DOI: | 10.1016/j.envpol.2016.11.011 |
Nаlаzi sе u kоlеkciјаmа: | PMF Publikacije/Publications |
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