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Non-point Source Pollution

Non-point Source Pollutants

Source

Effect

Nutrients

  • decomposing leaves or organic material
  • excessive fertilizer application
  • algae blooms, hypoxia
  • health risks to humans (nitrates)

Toxic substances:

copper, lead, zinc

  • industrial processes
  • health risks

Petroleum products:

gasoline, oil, grease

  • transportation common in cities
  • health risk to aquatic life, affect the "looks" of waterways too

Pathogens

  • animal & bird droppings, human sewage

 

  • health risks

Source:

http://nonpoint.deq.state.la.us/manage9.html

www.iptv.org/iowa_database/k12connections/PDFs/DNRchap2.pdf

www.buildinggreen.com/products/paving.htm

 

 

 


Explore More: Water Quality
Copyright 2004, Iowa Public Television
The Explore More project is supported by funds from the
Roy J. Carver Charitable Trust
and the USDE Star Schools Program.