Water Pollution - Water Pollution 14/02/2008 14:07:00...

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Water Pollution 14/02/2008 14:07:00 Chemical pollution metals, nutrients, pesticides, dioxins Physical pollution: altered flow, sediment, heat, trash, etc Biological pollution: invasive species (plant and animal Points source: sources with a well defined location (factory pipe line) Non point source: source is over large areas such as farmlands, stream banks, roadsides (runoff) Chemical: Inorganic Metals highly toxic elements such as lead cadmium and mercury. Sources: mines, mine tailings,  coal-fired power, etc Point and non point Not produced or degraded Moved around in environment Toxic: interfere with enzymes 
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Mercury converted into methyl mercury by sediments microbes; biomagnifies  Fish consumption guidelines o Nutrients Essential nutrients- (N and P0 from agricultural fertilizers, domestic sewage Eutrophication nutrient enrichment of aquatic ecosystems
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Water Pollution - Water Pollution 14/02/2008 14:07:00...

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