Chapter 13

a pollutant that develops after a chemical reaction with chemicals already present in the atmosphere.

A secondary pollutant is ( Outdoor Air Pollution )

All criteria air pollutants have been cut by 37-99%.

Compared with 40 years ago, how has the condition of air pollution changed in the United States?

formed on hot, sunny days from pollutants often generated by automobiles.

Photochemical smog is ( Outdoor Air Pollution )

stratosphere.

The earth's ozone layer that limits damaging solar radiation striking the planet is found in the ( The Atmosphere )

chemically neutralizing and removing pollutants from smokestacks.

Scrubbers help to reduce air pollution by ( Outdoor Air Pollution )

troposphere.

The layer of the atmosphere closest to Earth and where all our weather occurs is the

oxygen, chlorine

Fill in the blanks: ozone is made of _________ and is broken down by ____________. ( Outdoor Air Pollution )

nitrogen oxides

Acid precipitation (and deposition) is caused when sulfur oxides react with water in the air. Which of the following also reacts with water to create acid precipitation and deposition? ( Outdoor Air Pollution )

chlorofluorocarbons

An international treaty has successfully cut levels of which pollutant?

burning of fossil fuels.

Industrial smog forms on cool, wet days and is caused by ( Outdoor Air Pollution )

specific spots, such as a factory's smokestacks, where large quantities of pollution are discharged.

Point sources of air pollution are ( Outdoor Air Pollution )

Total emissions of the six have declined by more than 50% since 1970.

The EPA tracks six criteria air pollutants. Which of the following statements about the criteria air pollutants and efforts to control them is true? ( Outdoor Air Pollution )

nitrogen (N2).

The gas that makes up the largest percent of the atmosphere (78%) is

chlorofluorocarbon (CFC) refrigerants.

The ozone hole is largely a consequence of the use of ( Outdoor Air Pollution )

burning fossil fuels.

The primary source of the pollution that causes acid deposition is

nitrogen (N2)

Which gas makes up 78% of the molecules in the atmosphere? ( The Atmosphere )

troposphere

Which layer of the atmosphere contains 75% of the atmosphere's molecules, is closest to the planet's surface, is constantly mixing, and gives us our weather? ( The Atmosphere )

carbon dioxide

Which of the following is not a criteria pollutant for which the EPA sets emission standards for? ( Outdoor Air Pollution )

It is a much smaller health problem than outdoor air pollution.

Which of the following statements about indoor air pollution is NOT true? ( Indoor Air Pollution )

It binds with hemoglobin irreversibly and prevents oxygen uptake by mammals.

Which of the following statements about sulfur dioxide (SO2) is NOT true? ( Outdoor Air Pollution )

Temperature inversions can trap air pollution in one place for many days.

Which of the following statements properly describes the cause of a temperature inversion or its effects?

sulfuric acid in acid rain

Which of these is a secondary pollutant?