Which of the following are reasons or factors for exposure to benzene pollution?

1.Automobile exhaust

2.Tobacco smoke

3.Wood burning

4.Using varnished furniture or polyurethane products

A1, 2 and 3 only ✓ Correct

B2 and 4 only

C1, 2, 3, 4 and 5

D1, 3 and 4 only

Correct answer: (A) 1, 2 and 3 only

Explanation

The exposure factors taken as correct are automobile exhaust, tobacco smoke and wood burning, all combustion sources that release benzene.

Statement 1 is right: vehicle exhaust is a major outdoor source of benzene.

Statement 2 is right: tobacco smoke carries benzene and is a leading indoor source.

Statement 3 is right: burning wood emits benzene along with other volatile compounds.

Statement 4 is set aside here: varnished furniture and polyurethane goods are only minor, indoor contributors.

Benzene is a known carcinogen linked to leukaemia on long exposure.

Want more like this? Create a free account to practise a full test, track your progress, and get spaced-repetition review.