Water Pollution

• Water pollution• Sources• Drinking water• BOD• Eutrophication• Groundwater• Wastewater treatment

Sources of water pollution

• Urban runoff• Agricultural runoff• Spills• Radioactive materials• Industrial runoff• Erosion• Atmospheric fallout• Power plants

Drinking water standards

Infant mortality

Categories of water pollutants

Biological Oxygen demand

• Pollution zone• Active decomposition

zone• Recovery zone

Water borne diseases

• Cryptosporidium= GI illness and flu like symptoms

• Resistant to chlorination• Source: Cattle• Fecal coliform bacteria

Nutrients

Eutrophication

Oil

Surface water pollution

• Sediment• Acid mine drainage• Chemical

Groundwater pollution

• Overpumping• Deep well injection

Salt water intrusion

• Cone of depression• Cone of ascension• Movement of groundwater, Nassau county, Long

Island

Waste water treatment

• Primary• Secondary • Tertiary• Economics

Waste water renovation

Constructed wetlands

Avondale in Arizona,