Q48. Which of the following are the reasons/factors for exposure to benzene pollution?
- Automobile exhaust
- Tobacco smoke
- Wood burning
- Using varnished wooden furniture
- Using products made of polyurethane
Select the correct answer using the code given below:
(a) 1, 2 and 3 only
(b) 2 and 4 only
(c) 1, 3 and 4 only
(d) 1, 2, 3, 4 and 5
Answer: D
- Statement 1 is correct: The main sources of benzene in the environment include automobile exhaust, industrial sources, and fuel evaporation from gasoline filling stations.
- Statement 2 is correct: Active and passive exposure to tobacco smoke is also a significant source of exposure to benzene pollution. Benzene is highly volatile, and exposure occurs mostly through inhalation.
- Statement 3 and statement 4 are correct: There are various toxic paints and varnishes that are used to cover wood and wooden furniture. Wood burning and using varnished wooden furniture are also sources of benzene pollution.
- Statement 5 is correct: During fires, polyurethane foams burn rapidly and produce dense smoke, toxic gases, and intense heat. Carbon monoxide is the most common, but smoke also contains benzene, toluene, nitrogen oxides and hydrogen cyanide. Using products made of polyurethane may cause benzene pollution.
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