F332: The Atmosphere – important gases

Some information on how important atmospheric gases are produced and the consequences of their production. Hope it helps! Remember...ozone is good up high,  but bad nearby! ;)

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  • Created on: 12-05-13 11:40
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F332: The Atmosphere ­ important gases
Substance How produced Consequences of production
Carbon dioxide, CO2 The burning of fossil fuels This enhances the natural 'greenhouse effect' of the
Natural product of respiration by animals atmosphere, causing global warming and climate
Carbon monoxide, CO Incomplete combustion of hydrocarbons Reduces oxygen-carrying capacity of the blood to the
body's organs (like the heart and brain) and tissues
At extremely high levels, CO can cause death
Nitrogen oxides, NOx Nitrogen dioxide mostly comes from power plants Current scientific evidence links short-term NO2
and cars exposures, ranging from 30 minutes to 24 hours, with
Nitrogen dioxide is formed in two ways--when adverse respiratory effects including airway
nitrogen in the fuel is burned, or when nitrogen in inflammation in healthy people
the air reacts with oxygen at very high Nitrogen dioxide can also react in the atmosphere to
temperatures form ozone, acid rain, and particles
Sulfur dioxide, SO2 The largest sources of SO2 emissions are from fossil short-term exposure to SO2 has been linked to adverse
fuel combustion at power plants (73%) respiratory effects including bronchoconstriction and
Smaller sources of SO2 emissions include industrial increased asthma symptoms
processes such as extracting metal from ore, and Like nitrogen dioxide, sulfur dioxide reacts in the
the burning of high sulfur containing fuels atmosphere to form acid rain and particles
Ozone, O3 Formed when nitrogen oxides and volatile organic Ozone near the ground can lead to more frequent
compounds mix in sunlight asthma attacks in people who have asthma and can
cause sore throats, coughs, and breathing difficulty
Stratospheric ozone CFCs are used in air conditioners and refrigerators, These chemicals can destroy the ozone in the
depleters, including CFCs aerosol cans and fire extinguishers stratosphere by working as catalysts. If the ozone in the
stratosphere is destroyed, people are exposed to
more UV radiation from the sun, leading to skin cancer
and eye problems
REMEMBER: Ozone is good up high but bad nearby! (Cheesy I know)


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