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Geographical location of the sampling site. (a) Department of Valle del Cauca, Colombia; (b) City of Cali. (c) Red points show the sites where surface water samples were collected: the wastewater treatment plant “Cañaveralejo PTAR-C” (A), rainwater channel (B) near the wastewater treatment plant, Intersector Canal (CVC) Sur (C), water treatment plant “Puerto Mallarino” (D), and Melendez River (E).
