Which are the reasons for exposure to benzene pollution
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:
- 1, 2 and 3 only
- 2 and 4 only
- 1, 3 and 4 only
- 1, 2, 3, 4 and 5
Answer: D
Explanation
Areas of heavy traffic, gas stations, and areas near industrial sources may also have higher air levels. Cigarette smoking and secondhand smoke including wood burning are important sources of exposure to benzene.
Cigarette smoke accounts for about half of the exposure to benzene in the United States During fires, polyurethane foams burn rapidly and produce dense smoke, toxic gases and intense heat. Carbon monoxide is most common, but smoke also contains benzene, toluene, nitrogen oxides and hydrogen cyanide.
How benzene works?
- Benzene works by causing cells not to work correctly. For example, it can cause bone marrow not to produce enough red blood cells, which can lead to anemia. Also, it can damage the immune system by changing blood levels of antibodies and causing the loss of white blood cells.
- The seriousness of poisoning caused by benzene depends on the amount, route, and length of time of exposure, as well as the age and preexisting medical condition of the exposed person.
- Exam Year: 2020