Exam 13: Air Pollution

Acid aerosol particles and acid rain have no known direct effect upon human health.

This gas has a distinctive reddish-brown color: ________.

During what part of the day should ozone levels in an urban environment be highest?

How does the solar radiation present on a clear day contribute to air pollution? Assume sources of pollutants are present.

The factor involved with air pollution that is most subject to control by man is:

This source of primary pollutants is the greatest contributor to air pollution.

Meteorological conditions are important in air pollution episodes since they

More than 4000 premature deaths occur in the U.S.every year due to:

What triggers a photochemical reaction?

The formation of inversions is unrelated to the terrain of the earth's surface.

Dilution or mixing of air pollutants into the surrounding air is best when:

The dispersion of pollutant material into the atmosphere depends on the wind and the ________ of the air layer.

All of the following contributed to the severity of London's Great Smog of 1952 EXCEPT:

Until regulation of air pollution began in the 1950s,the greatest influence on emissions of air pollutants was/were:

Assume you live in an urban setting and an inversion is present.Which of these best describes the visibility in your area if the inversion remains for 2 or 3 days?

Exposure to this primary pollutant is associated with damage to the nervous systems of young children.

The most prominent sources of this colorless,odorless,poisonous gas are motor vehicles: ________.

Pollutants emitted directly from identifiable sources are termed primary pollutants.

The most tragic air pollution episode occurred in London in 1952.More than ________ people died as a result of the five-day ordeal.

Which one of the following is a secondary pollutant?