Air

Question 1

Smog

Answer 1

Mixture of pollutants ground-level ozone, produced by chemical rxns in the air

Question 2

Composition of air

Answer 2

NItrogen- 76%
Oxygen-23%
Argon-1%
Carbon dioxide
Water vapor

Question 3

Natural sources of air pollution

Answer 3

Wind storms that spread dust
Salt evaporation along earths coast
Production of materials that have a biological origin- mold spores, pollen, organic material
Forest fires
Volcano eruptions

Question 4

Clean Air Act

Answer 4

Identified six common air pollutants of concern (critical pollutants)

Question 5

Critical pollutants

Answer 5

The only air pollutants with national air quality standards that define allowable concentrations of these substances in ambient air

Question 6

6 criteria pollutants

Answer 6

1. Carbon monoxide
2. Lead
3. Ozone
4. Nitrogen Dioxide
5. Particulate Matter
6. Sulfur Dioxide

Question 7

Indoor air quality issues

Answer 7

Household chores that include cooking collecting firewood, cooking using open fires and inefficient stove tops