2026-04-17T06:51:35Zhttps://recercat.cat/oai/request

oai:recercat.cat:10256/182552024-12-13T19:01:34Zcom_2072_452955com_2072_2054col_2072_453077col_2072_453080

00925njm 22002777a 4500 dc Mandaric, Ladislav author Kalogianni, Eleni author Skoulikidis, Nikolaos author Petrović, Mira author Sabater, Sergi author 2019-01-10 The contamination patterns and fate of pharmaceutically active compounds (PhACs) were investigated in the Evrotas River (Southern Greece). This is a temporary river with differing levels of water stress and water quality impairment in a number of its reaches. Three sampling campaigns were conducted in order to capture different levels of water stress and water quality. Four sampling sites located on the main channel of the Evrotas River were sampled in July 2015 (moderate stream flow), and June and September 2016 (low stream flow). Discharge of urban wastewater has been determined as the main source of pollution, with PhACs, nutrients and other physicochemical parameters considerably increasing downstream the wastewater treatment plant (WWTP) of Sparta city. Due to the pronounced hydrological variation of the Evrotas River, generally, the highest concentrations of PhACs have been detected during low flow conditions. Simultaneously, low flow resulted in an increased water travel time and consequently longer residence time that accounted for the higher attenuation of most PhACs. The average decrease in total concentration of PhACs within the studied waterbody segment (downstream of Sparta city) increased from 22% in July 2015 to 25% in June 2016 and 77% in September 2016. The PhACs with the highest average concentration decrease throughout the sampling campaigns were hydrochlorothiazide, followed by sotalol, carbamazepine, valsartan, and naproxen This work has been supported by the European Communities 7th Framework Programme funding under Grant Agreement No. 603629- ENV-2013-6.2.1-GLOBAQUA, and by the Generalitat de Catalunya (Consolidated Research Groups: SGR ICRA-ENV 2017029). Authors also acknowledge the support for scientific equipment given by the European Regional Development Fund (FEDER) under the Catalan FEDER Operative Program 2007-2013 and by MINECO according to DA3ª of the Catalan Statute of Autonomy and to PGE-2010 Contaminants emergents en l'aigua Emerging contaminants in water Medicaments -- Aspectes ambientals Drugs -- Environmental aspects Contamination patterns and attenuation of pharmaceuticals in a temporary Mediterranean river