Pollution Management

HideShow resource information
  • Created by: Tanya B
  • Created on: 15-03-13 03:30
View mindmap
  • Pollution Management
    • Definition: contamination of the earth and atmosphere to such an extent that normal environmental processes are adversely affected.
      • polluted elements are disagreeable, toxic, harmful, objectionable
    • Point source & non-point source
      • Point source:  discrete sources of contamination that can be represented by single points > sources can be tracked
      • Non-point source: disperced sources from which pollutants originate and enter the natural environment (numerous sources)
    • Cost of pollution
      • Death
      • Decreased levels of health
      • declining water resources
      • reduced soil quality
      • poor air quality
    • Monitoring methods
      • soil pollution
        • Soil quality is tested using physical, chemical and biological properties, processes and characteristics = monitors changes in soil quality
      • Water quality
        • Test  performed by portable equipment (detects nitrate, nitrite, free chlorine, chloride, fluoride, hardness, etc)
        • River-quality tests = BOD (biochemical oxygen demand),  COD (chemical oxygen demand), turbidity, ammonia and dissolved oxygen.
    • Biochemical oxygen demand (BOD)
      • The more organisms in an area, the more oxygen used.
        • BOD is determined by: number of aerobic organisms at that point AND their rate of respiration
  • Major sources
    • Pollution Management
      • Definition: contamination of the earth and atmosphere to such an extent that normal environmental processes are adversely affected.
        • polluted elements are disagreeable, toxic, harmful, objectionable
      • Point source & non-point source
        • Point source:  discrete sources of contamination that can be represented by single points > sources can be tracked
        • Non-point source: disperced sources from which pollutants originate and enter the natural environment (numerous sources)
      • Cost of pollution
        • Death
        • Decreased levels of health
        • declining water resources
        • reduced soil quality
        • poor air quality
      • Monitoring methods
        • soil pollution
          • Soil quality is tested using physical, chemical and biological properties, processes and characteristics = monitors changes in soil quality
        • Water quality
          • Test  performed by portable equipment (detects nitrate, nitrite, free chlorine, chloride, fluoride, hardness, etc)
          • River-quality tests = BOD (biochemical oxygen demand),  COD (chemical oxygen demand), turbidity, ammonia and dissolved oxygen.
      • Biochemical oxygen demand (BOD)
        • The more organisms in an area, the more oxygen used.
          • BOD is determined by: number of aerobic organisms at that point AND their rate of respiration
    • sewage sludge
    • mining & quarrying
    • demolition and construction
    • domestic and commercial
    • dredging sand and mud
    • industry  (ash)
    • agricultural wastes

Comments

No comments have yet been made

Similar resources:

See all resources »See all resources »