02.01.10 - Feb1st ChandraMadramootoo (soil...

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Feb 1 st   Water Pollution and Control in Agriculture Chandra Madramootoo Hydrologic Cycle important in understanding transport of contaminants via water and soil (soil  type – sand, silt, clay ratio, vegetation, organic material, moisture content of soil, and slope) and  intensity of rainfall. Surface runoff and water moving through the soil profile are key factors in  transportation of pollutants. Only 2.5% of global water is freshwater. Of that 2.5% only 0.3% is renewable in freshwater  lakes and rivers. Only 30% of the 2.5% is accessible (groundwater). Future reduced available water per capita due to raising population numbers is likely to be  coupled with reduced water quality. Microorganisms (parasites, bacteria, viruses), nutrients  (nitrates, phosphorus), metals (As, Cd, Hg, Pb, Cu, Ni,Zn), and synthetic compounds  (pesticides, effluents, hormones, steroids) threaten water quality. Contaminations: boaters, tourism, industrial, urban runoff, landfills, municipal water supply 
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  • Winter '10
  • TimothyGeary
  • agricultural runoff, deep aquifers, urban runoff, Municipal water supply, rainfall. Surface runoff, reduced water quality.

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02.01.10 - Feb1st ChandraMadramootoo (soil...

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