APES Unit 8 Vocab

Pollutants discharged from a single identifiable location (e.g., pipes, ditches, channels, sewers, tunnels, containers of various types).

pollution that comes from many sources rather than from a single, specific site

Part of the water cycle where an excess of water runs down and does not sink into the soil and eventually makes it to the rivers, lakes, and oceans.

(CWA, 1972) set maximum permissible amounts of water pollutants that can be discharged into waterways; aims to make surface waters swimmable and fishable

Range of chemical and physical conditions that must be maintained for populations of a particular species to stay alive and grow, develop, and function normally

In a body of water, an area with extremely low oxygen concentration and very little life

The process where too many nutrients, mainly nitrogen and phosphorus, are added to bodies of water and can act like fertilizer, causing excessive growth of algae.

The curve obtained when the concentration of dissolved oxygen in a river into which sewage or some other pollutant has been discharged is plotted against the distance downstream from the sewage outlet

oxygen dissolved in water, dissolved oxygen is important for fish and other aquatic animals

poisonous

chemicals that interfere with the normal functioning of hormones in an animal's body

The process of cleaning water by running it through different layers of rocks and chemicals;

the process of treating wastewater and turning it into water that can be used again.

excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen.

a substance that provides nutrients to help crops grow better (NPK)