1what is the structure of the atmostphere? which part do we live in? what is its purpose?
2how is the stratosphere different from the trophosphere?
• Stratosphere (17 – 48 km) similar composition to
troposphere, except more O3 and less H2O
3what is the difference between "good" and "bad" ozone? graph of ozone distribution?
4What is air pollution?
• Air pollution: presence of chemicals in the
atmosphere in concentrations high enough to
affect climate and harm organisms and
materials.
• heat and noise are also considered forms of
air pollution.
5Two types of air pollutants
• Primary pollutant: Chemicals directly to the
air by natural events or human activities.
• Secondary pollutant: Harmful chemicals
formed when a primary air pollutant reacts
with natural air components and/or other
pollutants.
6Sources and types of outdoor air pollution
sources: natural, stationary, mobile
types primary, secondary
7Major outdoor air pollutants and their sources
Carbon monoxide (CO) - fossil fuels
Nitrogen dioxide (NO2) - fossil fuels
Sulphur dioxide (SO2) - coal
Suspended particulate matter (SPM) - coal and diesel
Lead (Pb) - paint, batteries
Ozone (O3) - secondary pollutant
8What is Photochemical Smog?
9What is Industrial Smog?
10What is acid deposition?
11What are the harmful effects of acid rain?