acid rain program acid rain actinides in the environment agriculture air quality index air pollution american lung association ammonia analytical chemistry anthropogenic aquatic toxicology aquifer atmospheric dispersion modeling bacteria biochemical oxygen demand bioindicator bioremediation cadmium chemical oxygen demand chemical waste clay clean water act common law construction convention on long-range transboundary air pollution copper cosmetic cultural eutrophication ddt dnapl dssam model decay disinfection by-product ditch drinking water earthquake electrical conductivity environment agency environmental radioactivity environmental science european environment agency eutrophication factory fertilizer fish fission product food processing fuel oil gasoline global atmosphere watch global dimming global distillation global warming great pacific garbage patch greenpeace groundwater herbicide hudson river hydrology hygiene indoor air quality industrial waste industrial wastewater treatment insecticide invasive species kyoto protocol lake lead light pollution list of environmental organizations livestock logging marine debris marine pollution mercury mexicali montreal protocol natural environment new york bight nitrate noise pollution nonpoint source pollution nuclear fallout nurdle nutrient ocean ocean acidification oil spill organic compound oxygen ozone depletion paper pollution particulate pathogen pesticide petroleum phosphate phosphorus photosynthesis plankton plant plutonium in the environment point source pollution pollution radiation poisoning radio spectrum pollution radioactive contamination refuse act regulation river scottish environment protection agency sediment sewage sewage treatment shellfish ship pollution shipwreck silt sinkhole slash and burn smog soil soil contamination solvent storage tank storm storm drain stormwater sulfur dioxide surface runoff surface water surgeon general of the united states tetrachloroethylene thermal pollution total suspended solids toxin tree trichloroethylene trophic state index turbidity united kingdom united states congress united states environmental protection agency united states geological survey uranium in the environment urbanization visual pollution volcano vortex wastewater water water pipe water quality water stagnation waterborne diseases wikimedia commons woods hole oceanographic institution zinc