摘要：This paper presents the experimentally determined amounts of phosphorus from laundry detergents, which includes the total amount of orthophosphates and anionic detergents, in the public sanitation system of the City of Niš and the Nišava River. The obtained values were compared to the values prescribed by the law. The main goal was to estimate the negative environmental impact of these toxic chemicals on the Nišava river watercourse. On average, every citizen and household of the Niš city annually releases 393.2 g and 1,129.5 g of phosphorus into the Niš sanitation system and the Nišava river. However, the average amount of phosphorus in the Niš’s sanitation system had been reduced from 2010 to 2015.
关键词：Laundry detergents;orthophosphates;environmental pollution;Nišava River
