21 Water Quality Parameters 8

21 Water Quality Parameters 8 - simple inorganic molecule...

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Major Determinants of Water Quality and the Impact or Availability of Water Pollutants Organisms Solubility Oxygen pH Biological (Pathogenic/non pathogenic) Metals (Hg, Pb, As) Nutrients (N, P) Organic Chemicals (PCBs, Dioxins) Sediment Heat
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Microorganisms Pathogenic – harmful Non-pathogenic - benign
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Autotrophic: produce complex organic compounds from simple inorganic molecules and an external source of energy. The Earliest Organisms Chemoautotrophs, Cyanobacteria, Plants Organic = Carbon-containing
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Autotrophs – Plants, Algae, Cyanobacteria Produce complex organic compounds from carbon dioxide using energy from light . 6CO 2 + 6 H 2 O C 6 H 12 O 6 + 6 O 2 light
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Unformatted text preview: simple inorganic molecule complex organic compound energy Primary producers – base of the food chain Heterotrophs Derive energy from consumption of complex organic compounds produced by autotrophs Autotrophs store energy from the sun in carbon compounds (C 6 H 12 O 6 ) Heterotrophs consume these complex carbon compounds for energy carbon compounds (C H O ) autotrophs Heterotrophs Organisms Anaerobic live in low-oxygen environments Aerobic live in high oxygen environments Heterotrophs Heterotrophs: use carbon compounds for energy- consumers Aerobic heterotrophs Anaerobic heterotrophs...
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21 Water Quality Parameters 8 - simple inorganic molecule...

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