Terms in this set (29)
Observations and measurements used to describe the health of a water system.
Environmental Protection Agency
Low oxygen levels in water.
No oxygen in water.
Nitrogen compounds used for growth by plants and algae.
Phosphorous compounds used for growth by plants and algae.
Rapid growth of algae encouraged by too many nutrients (nitrates/Phosphates) in the water.
Characterized by an increase in nutrients that support the growth of algae and other plant organisms, the decay of which can deplete the water of oxygen.
The measure of how acidic or basic a substance is.
A measure of how clear water is.
Organisms or parts of organisms (called macro-invertebrates) that are used to test the health of a water system.
Small, spineless creatures that are visible (crab, worms, insects).
Any substance or form of energy that can cause harm to the environment and organisms of an ecosystem.
Any foreign component in a substance.
Point source pollution
Pollution that can be traced to a specific source.
Non-point source pollution
Pollution that comes from many places whose source is not easily identified.
The process of treating water so it is safe to drink.
Adding chemicals to water causing particles to clump together.
Allowing clumps in water to settle to the bottom so they can be easily removed.
Running water through various sized screens/materials to remove pollutants.
Adding chemicals (usually chlorine) to water to kill harmful bacteria.
Forcing air through water to remove unpleasant smelling/tasting gases.
Water with a high mineral (Ca & Mg) content.
Water that is safe for bathing/cleaning, but not drinking.
Water that is safe to drink.
Responsibility for conserving and restoring the Earth's resources for future generations.
The careful use of a natural resource in order to prevent depletion.
Laws or rules developed by the state and federal government to control water quality.
Water Quality Standards
Levels of water quality indicators that are acceptable.