Lecture 31 Water Pollution and Soils

Lecture 31 Water - Water Quality and Soils Fresh Water Fresh surface water groundwater soil water 0.8 total earth water Whats in the Water

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1 Water Quality and Soils Water Quality and Soils Fresh Water Fresh surface water, groundwater, soil water 0.8% total earth water What’s in the Water? ± Dissolved organic and inorganic compounds ± Particulate organics and inorganics ± Gases – oxygen and carbon dioxide ± Anthropogenic inputs, effects
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2 "any biological, chemical, or physical change in water quality that has a harmful effect on living organisms or makes water unsuitable for desired uses." Water Pollution 44% of lakes, 37% of rives unsafe for recreation due to toxic water pollutants 32% of estuaries. Where does it come from? Population Dynamics 0 10 20 30 40 50 60 70 80 90 1790 1860 1920 1990 2000 Year % Urban
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3 Two Basic Avenues of Water Pollution Point source pollution Specific entry point Industrial discharges Sewage treatment plants Landfills Non-point source pollution Diffuse sources Difficult to trace, regulate Non-point Source Pollution Lawns, Gardens Golf Courses Agriculture Urban Runoff Fertilizers (N and P) Pesticides (organics) Animal Wastes (organics, biological) Oil, gas, rubber (organics) Golf Courses Agriculture Urban Point Source Pollution Factories/Industry Wastewater Treatment Landfills Underground Storage Tanks Mines
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4 Pollution Types
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This note was uploaded on 07/31/2011 for the course SOS 3022 taught by Professor Staff during the Fall '08 term at University of Florida.

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Lecture 31 Water - Water Quality and Soils Fresh Water Fresh surface water groundwater soil water 0.8 total earth water Whats in the Water

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