ENVS 1126 Chapter : Chapter 20 Water Pollution And Its Prevention
Document Summary
Water pollution: cuyhoga river on fire in 1969. Captured national attention over water pollution after treating the water. Congress passed clean water act because of this. Amendments to this: wastewater treatment plant dump back into rivers, but still a source of, dead zone fertilizers, sewage, and nutrients from farming flow down, hypoxia every year in august reports come out. Golf course (lots of pesticides and fertilizer rivers such as mississippi into gulf water, massive growth of algae blooms, Dead zone less than 2 parts per million (ppm) super green, uniform grass). When it rains, all washes into the lake. Oxygen concentration of the water in hypoxic dead zone less than 2 parts per million (ppm) oxygen. In august because water is lighter in terms of temperature: point source can point to the spot pollution is coming from, non-point source coming from a large area.
