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Water Pollution
A point source is “an identifiable and confined discharge point for one or more water pollutants, such as a pipe, channel, vessel, or ditch”
(Annenberg Foundation, 2015).
A non-point source is “a diffuse, unconfined discharge of water from the land to a receiving body of water.
When this water contains materials that can potentially damage the receiving stream, the runoff is considered to be a source of pollutants”
(Annenberg Foundation, 2015).
Water pollutants can come from a variety of different sources.
Sources of water pollution can be classified into two categories:
point sources and non-point sources.
Water Pollutants
Source:
Pollutant:
Naturally occur in geological deposits
Some inorganic contaminants (i.e. arsenic) and some radionuclides (i.e. uranium)
“Emitted from industrial facilities, mining, and agricultural activities such as fertilizer and pesticide application” (Annenberg Foundation, 2015).
Most organic and inorganic chemicals
Animal and human waste
What is water pollution?
Where does water pollution come from?
Water pollution is the contamination of a water source caused by any biological, chemical, or physical change in water quality
(Water pollution FAQ Frequently Asked Questions, 2015).
Below is a list of major water pollutants.
Microorganisms
What is a point source?
What is a non-point source?
(Annenberg Foundation, 2015)
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