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APESCH18
| Term | Definition |
|---|---|
| Atmospheric deposition | sedimentation of solids, liquids, or gaseous materials from the air |
| Best availabe, economically achievalbe technology (BAT) | the best pollution control available |
| Best Practicable Control Technology (BPT) | the best technology for pollution control available at reasonable cost and operable under normal conditions |
| BIological Oxygen Demand (BOD) | a standard test for measuring the amount of dissolved oxygen utilized by aquatic microorganisms |
| Coliform Bacteria | bacteria that live in the intestines (including the colon) of humans and other animals; used as a measure of the presence of feces in water or soil |
| Cultural Eutrophication | an increase in biological productivity and ecosystem succession caused by human activities |
| Dissolved Oxygen (DO) content | amount of oxygen dissolved in a given volume of water at a given temperature and atmospheric pressure; usually expressedin parts per million (ppm) |
| Effluent Sewerage | a low-cost alternative sewage treatment for cities in poor countries that combines some feature of septic systems and centralized municipal treatment systems |
| Eutrophic | reivers and lakes rich in organisms and organic material |
| Nonpoint Sources | scattered, diffuse sources of pollutants, such as runoff from farm fields, golf courses, construction sites, etc |
| Oligotrophic | condition of rivers and lakes that have clear water and low biological productivity; are usually clear, cold, infertile headwater lakes and streams |
| Oxygen Sag | oxygen decline downstream form a pollution source that introduces materials with high biological oxygen demands |
| Point sources | specific locations of highly concentrated pollution discharge, such as factories, power plants, sewaage treatment plants, underground coal mines, and oil wells |
| Primary Treatment | a process that removes solids from sewage before it is discharged or treated further |
| Red Tide | a population explostion or bloom of minue, single-celled marine organisms called dino-flagellates. Billions of these cells can accumulate in protected bays where the toxins they contain can poison other marine life |
| Secondary Treatment | bacterial decomposition of suspended particulates and dissolved organic compound that remain after primary sewage treatment |
| Tertiary Treatment | the removal of inorganic minerals and plant nutrients after primary and secondary treatment of sewage |
| Thermal Plume | a plume of hot water discharged into a stream or lake by a heat source, such as a power plant |
| Total Maximum Daily Loads (TDML) | the amount of particular pollutant that a water body can receive from both point and nonpoint sources and still meet water quality standards |
Created by:
AlanaR
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