Changes in concentrations of hydrophilic organic contaminants and of endocrine-disrupting potential downstream of small communities located adjacent to headwaters

Environment International
B JarošováK Hilscherova

Abstract

Endocrine-disruptive potential and concentrations of polar organic contaminants were measured in seven headwaters flowing through relatively unpolluted areas of the Czech Republic. Towns with Wastewater Treatment Plant (WWTP) discharges were the first known sources of anthropogenic pollution in the areas. River water was sampled several kilometers upstream (US) and several tens of meters downstream (DS) of the WWTP discharges, by use of Pesticide and Pharmaceutical Polar Organic Integrative Samplers (POCIS-Pest, POCIS-Pharm). Extracts of passive samplers were tested by use of a battery of in vitro bioassays to determine overall non-specific cytotoxicity, endocrine-disruptive (ED) potential and dioxin-like toxicity. The extracts were also used for quantification of polar organics. There was little toxicity to cells caused by most extracts of POCIS. Estrogenicity was detected in all types of samples even though US locations are considered to be background. At US locations, concentrations of estrogen equivalents (EEq) ranged from less than the detection limits (LOD) to 0.5 ng EEq/POCIS. Downstream concentrations of EEqs ranged from less than LOD to 4.8 ng EEq/POCIS. Concentrations of EEq in POCIS extracts from all DS locations wer...Continue Reading

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Citations

Dec 24, 2013·Environmental Science and Pollution Research International·P MacikovaK Hilscherova
Oct 2, 2015·Integrated Environmental Assessment and Management·Keith A MaruyaStephen B Weisberg
Nov 18, 2015·Environmental Science and Pollution Research International·Evangelia Terzopoulou, Dimitra Voutsa
Jan 9, 2015·Journal of Environmental Management·Barbora JarošováLuděk Bláha
Dec 29, 2013·Environmental Science & Technology·Beate I EscherFrederic D L Leusch
Jul 15, 2015·Scandinavian Journal of Public Health·Iyekhoetin Matthew Omoruyi, Raimo Pohjanvirta
Dec 19, 2017·Environmental Science. Processes & Impacts·Chimi WangmoMichal Bittner
Jun 18, 2019·Critical Reviews in Analytical Chemistry·Klaudia GodlewskaMonika Paszkiewicz

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