F07.204.Water2 - Water Quality: Why is it so dirty?...

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Unformatted text preview: Water Quality: Why is it so dirty? Cuyahoga River, Ohio November 1952 Some river! Chocolate- brown, oily, bubbling with subsurface gases, it oozes rather than flows. "Anyone who falls into the Cuyahoga does not drown," Cleveland's citizens joke grimly. "He decays. Time Magazine, August 1969 Groundwater Pollution What is Water Pollution? any physical (temperature, oxygen), chemical (mercury), or biological (disease, sewage) change to water that adversely effects its use by living things Types of Water Pollution 1. Biological 2. Chemical 3. Physical Measured in: Percent (%) Parts per thousand () Parts per million (ppm) Parts per billion (ppb) Biological Water Pollution 1. Infectious Disease (Pathogens) 2. Oxygen-Demanding Waste Direct (microbes in water): Typhoid, cholera, dysentery, hepatitis Entamoeba histolytica Biological Water Pollution 1. Infectious Disease (Pathogens) 2. Oxygen-Demanding Waste Indirect (Water breeding carriers): malaria, yellow fever, west nile virus Treehole mosquito (carried La Crosse ensephalitis) Water Borne Disease % of diseases caused by unsafe water U.S. Water Borne Disease Coliform Test Detection: Measure Fecal Coliform Solutions: Sewage treatment Immunization Biological Water Pollution...
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This note was uploaded on 01/11/2012 for the course ENVSCI 204 taught by Professor Robviens during the Fall '07 term at Bellevue College.

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F07.204.Water2 - Water Quality: Why is it so dirty?...

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