Urbaniak and M. Zalewski International Institute of Polish Academy of Sciences European Regional Centre for Ecohydrology, Tylna 3, 90-364 Lodz, Poland Department of Applied Ecology, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland m.urbaniak@unesco.lodz.pl   Abstract US EPA reported that 87% of 246 major water basins in USA are affected by nonpoint source pollutants. Following […]