dirty polluted river in ukraine. unsanitary undrinkable water. muddy brown water color with harmful bacteria. swamp in a ukrainian

bacteria brook brown canal chemicals clean clear contaminated contamination damage dirt dirty eco ecology ecosystem environment harmful impurity industrial infected infection landscape mud muddy natural nature outdoor place poisonous polluted pollution purity quality river stench stream substance summer surface swamp toxic ukraine ukrainian unclean undrinkable unsafe unsanitary virus water watercourse