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Drinking Water Exposure to Chemical and Pathogenic Contaminants: Disinfection-By-Products

One of the most successful public health advances of the 20th century was due to the disinfection of public drinking water supplies. However, successes are often accompanied by unintended consequences in human-health protection activities. Naturally occurring organic matter in sources of drinking water can react with disinfection chemicals to produce a variety of by-products that may inadvertently increase the toxicity of the treated drinking water. The U.S. Environmental Protection Agency has developed drinking water standards for disinfection chemicals and their by-products.

 U.S. Geological Survey research is providing data and information on the role of natural organic compounds in various hydrogeologic environments and subsequent disinfection by-product formation.

In Drinking Water

Environmental occurrence, fate and transport of disinfection by-products and pre-cursors:

  • Fate of disinfection by-products in Ground Water
  • Peat soils as a source of disinfection by-product pre-cursors
  • Precursors in a water-supply watershed in Virginia

Other Sources of USGS Information on Disinfection By-Products

Human Health Home
GeoHeatlh Newsletter

Air, Dust, and Soil contaminants and Pathogens
Drinking Water Contaminants
Consumption of Bioaccumulative Contaminants
Vector Borne and Zoonotic (animal to human) Disease
Contact With Recreational Waters
Animal Sentinels of Human Health

Places with Health Studies
Other USGS Data Sources

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URL: http://health.usgs.gov/dw_contaminants/by_products.html
Page Contact Information: envirohealth@usgs.gov
Page Last Modified: 05-May-2016@11:16