Site hosted by Angelfire.com: Build your free website today!

Atmosphere, Air Pollution and Ozone

  1. Atmosphere
    1. Composition

Decreased oxygen => Nothing would burn/ metabolic changes

    1. Atmospheric Layers
    1. Thermosphere
    1. Mesophere
    1. Stratosphere
    1. Troposphere

 

  1. Pollution
    1. Indoor air pollution
    1. cigarette smoking - lung cancer and possible asthma
    2. asbestos dust - lung cancer and lung disease
    3. organic solvent - cancer, asthma and other respiratory diseases
    4. Radon-222 - lung cancer (more potent when combined with cigarette smoking)

 

 

  1. Ozone
    1. What is ozone
    1. Love-hate relationship with ozone
    1. Tropospheric ozone - the hate relationship
    1. industrial smog
    1. Photochemical smog

i) source of smog

ii) contributing factors

iii) consequences

    1. Stratospheric ozone - the love relationship
    1. Ozone formation

2 steps


1) O2 + UV light (180-240 nm) O + O


2) O + O2 O3

    1. Ozone degradation

2 steps


1) O3 + UV light (200-320 nm) O + O2


2) O + O3 O2 + O2

    1. Importance of the ozone shield
    1. Ozone depletion
    1. Chlorofluorocarbons (CFCs)


Cl- + O3 ClO + O2


ClO + O3 ClO2 + O2


ClO2 + UV light Cl- + O2

    1. Protecting the Ozone layer