Emergent contaminants in spring rivers and their relation to the benthic macroinvertebrates

ABSTRACT To determine the presence of emergent contaminants in aquatic environments and to evaluate responses dominant taxa benthic macrofauna, seven stations were sampled along three rivers that serve as public water suppliers sampling campaigns, Upper Iguassu Basin, Brazil. Concentrations ethinylestradiol, fenofibrate, ibuprofen triclosan detected sediment. correlate patterns distribution abundance fauna with various found a redundancy analysis (RDA) was applied showed positive relationships between faunal groups, indicate stress (such Tubificinae), emerging pollutants ethinylestradiol). The also most influential variables exclusively anthropogenic, which shows these compounds can be harmful destined for supply are receiving pollutant loads.