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Chapter 29. Air Pollution
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Which of the following compounds is NOT an oxidant-type air pollutant?
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Which of the following pollutants contributes most to nontobacco-smoking lung cancer?
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d. products of incomplete combustion.
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Inhalants, such as NO2 and trichloroethylene, can increase proliferation of opportunistic pathogens in the lungs by:
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a. destroying goblet cells in the respiratory tract.
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b. damaging the alveolar septa.
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c. inactivating cilia in the respiratory tract.
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d. killing alveolar macrophages.
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e. dampening the immune system.
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Which of the following is NOT a characteristic of SO2 toxicology?
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a. SO2 is a major reducing-type air pollutant.
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b. Increased airflow rate increases the amount of SO2 inhaled.
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c. SO2 inhalation causes vasoconstriction and increased blood pressure.
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d. SO2 is predominately absorbed in the conducting airways.
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e. SO2 inhalation increases mucus secretion in humans.
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Which of the following would be MOST likely to occur on sulfuric acid exposure?
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b. decreased mucus secretion.
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c. an anti-inflammatory response.
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All of the following statements regarding particulate matter are true EXCEPT:
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a. Metals are most commonly released into the environment during coal and oil combustion.
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b. The interaction of gases and particles in the atmosphere can create a more toxic product than the gas or particle alone.
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c. Solubility does not play a role in the bioavailability of a metal.
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d. The earth’s crust is an important source of atmospheric magnesium.
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e. Diesel exhaust contains reducing- and oxidant-type air pollutants.
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