"Thousands of chemicals are being daily discharged into the sewage. Many of them pass through municipal wastewater treatment plants (WWTP) and continuously contaminate surface waters. Endocrine disruptors (EDCs) are a group of environmental contaminants of special concern. They interfere with endocrine system of resident organisms and may produce adverse developmental, reproductive, neurological, and immune effects (Ankley et al., 1998; Colborn et al., 1993; Kidd et al., 2007; Leskinen et al., 2005; Sumpter, 2005). Aquatic biota face lifelong exposure to multiple EDCs and their joint actions in mixtures (Cwiertny et al., 2014; King et al., 2016), but the consequences of such an exposure are still mostly unknown. Therefore, monitoring of the environmental concentrations and hormonal activities of EDCs in surface waters and their effects on aquatic organisms came into focus of many researchers worldwide." In ŠAUER, Pavel. Environmental pollutants progestins: occurrence, hormonal activities and effects on fish =: Environmentální polutanty progestiny: výskyt, hormonální aktivity a účinky na ryby. Vodňany: Fakulta rybářství a ochrany vod, Jihočeská univerzita v Českých Budějovicích, 2019. 114 stran. ISBN 978-80-7514-083-8. Zdroj anotace: OKCZ - ANOTACE Z WEBU