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Water Quality Set #1
definitions only
| Question | Answer |
|---|---|
| Algal bloom | An explosion of growth in a population of algae; step in eutrophication |
| Anoxic | An environment without oxygen |
| Biodiversity | The number of different species in an area; GOOD water has a HIGH variety and numbers of species |
| Bioindicators | An organism that is sensitive to environmental conditions and is one of the first to respond to changes; Some are visible with the naked eye and some require a microscope |
| Carbon dioxide | GOOD water has LOW levels; too much and animals will suffocate |
| Chemical indicator | Chemicals that are used to assess the health of a water system. You cannot see them just by looking! |
| Clean Water Act 1972 | Made it unlawful to discharge point |
| Dissolved Oxygen (DO) | Amount of oxygen dissolved in water |
| Eutrophication | An excess of nitrates and phosphates get into a body of water |
| Hard water | Water that contains high amounts of dissolved minerals (calcium & magnesium) |
| Hypoxic | Describes water that is low in oxygen |
| Macroinvertebrate | A biological indicator that surveys the "bugs" (visible animals without backbones). GOOD water includes pollution intolerant species like mayfly, stonefly & caddisfly. |
| Microorganism/Microbes | A biological indicator that surveys the microscopic "critters" in the water. GOOD water has NO giardia, e.coli or cholera. |
| Nitrate | A chemical indicator that indicates the water is contaminated by animal waste (poop) or fertilizer (poop). GOOD water has LOW levels. These lead to the overgrowth of aquatic bacteria. |
| Nonpoint Source Pollution | pollution that cannot be traced to one location, such as runoff from lawns, roads, farms, and factories |
| pH | A chemical indicator that tells how much acid or base is in the water. GOOD water is close to NEUTRAL (7.0) |
| Phosphate | A chemical indicator that indicates the water is contaminated by detergent or chemical fertilizer. GOOD water has LOW levels. These lead to the overgrowth of aquatic bacteria. |
| Physical indicator | Indicators of water quality that describe the physical aspects of the water. You can see some of them, but you need to measure others. |
| Point Source Pollution | pollution that can be traced to ONE location such as a drainpipe or a smokestack |
| Potable | Water that is considered safe to drink |
| Runoff | Water that flows over the ground surface rather than soaking into the ground, runs into bodies of water |
| Salinity | Total amount of all salts dissolved in water |
| Secchi disk | Instrument used to measure turbidity |
| Stewardship | the job of taking care of or protecting our environment and the organisms that live in it |
| Suspended sediment | A physical indicator that tells how much dirt is floating in the water. GOOD water has LOW amounts. |
| Temperature | A physical indicator that tells how hot or cold the water is. GOOD water has a LOW level because it holds more DO and slows bacterial growth. |
| Turbidity | A physical indicator that tells how cloudy the water is. GOOD water has LOW levels which means the water is clear and easy to see through. |
| Water movement | The flow or movement of a substance under influence of pressure from an area of greater pressure to an area of lower pressure; the current of a substance. |
| Water quality | Describes the suitability of water for a specific purpose. Looks at chemical, physical and biological indicators as clues to determine overall quality |
Created by:
jhandy8
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