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Route of Exposure: Drinking Water. Measuring chemicals in water. The concentration of chemicals in water or soil is often reported in parts or million (ppm) or parts per billion (ppb). Chemicals present in ppm or ppb amounts can have human health effects. Demonstrating ppm and ppb.

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Measuring chemicals in water
Measuring chemicals in water

  • The concentration of chemicals in water or soil is often reported in parts or million (ppm) orparts per billion (ppb).

  • Chemicals present in ppm or ppb amounts can have human health effects.


Demonstrating ppm and ppb
Demonstrating ppm and ppb

  • Serial Dilution Activity


Safe drinking water act
Safe Drinking Water Act

  • Sets Standards for Drinking Water Contaminants

    • Maximum Contaminant Levels (MCLs)

      • Microorganisms

      • Disinfectants

      • Disinfection Byproducts

      • Inorganic Chemicals

      • Organic Chemicals

      • Radionuclides

http://www.epa.gov/safewater/contaminants/index.html#mcls


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