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Forms of Surface Water Pollution
Water pollution is "contamination of water by undesirable foreign matter." It impacts our oceans, our surface water, and our underground water. Pollution comes in many forms--some conventional and others toxic.

 Toxic Pollutants

 Conventional Pollutants

 Cadmium  Ammonia
 Copper  BOD*
 Lead   Nitrogen (and nitrate)
 Mercury  Pathogens
 Phenol  Phosphorus
 Total residual chloride  Suspended solids
*'Biochemical Oxygen Demand'(BOD) is the term used to describe the oxygen used up as suspended solids decays.

Additonal considerations are:

  • Sewage effluents
  • Thermal pollution
  • Eutrophication
  • Petroleum
  • Faecal pollution
  • Acid precipitation
  • Storm sewage discharges
  • Urban surface water runoff
  • Farm fertilizer and pesticide runoff
  • Acide mine draininge
  • Radioactive substances

Indicator of Surface Water Pollutants:

  • Suspended Sediment
  • Fecal coliform
  • Total phosphorus
  • Nitrate
  • Dissolved solids
  • Dissolved Oxygen

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