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Match the following air pollutants with the most appropriate adverse health effects: Air pollutant (P) Aromatic hydrocarbons (Q) Carbon monoxide (R) Sulfur oxides (S) Ozone Health effect to human and/or test animal (I) Reduce the capability of the blood to carry oxygen (II) Bronchitis and pulmonary emphysema (III) Damage of chromosomes (IV) Carcinogenic effect

1. (P) – (II), (Q) – (I), (R) – (IV), (S) – (III)
2. (P) – (IV), (Q) – (I), (R) – (III), (S) – (II)
3. (P) – (III), (Q) – (I), (R) – (II), (S) – (IV)
4. (P) – (IV), (Q) – (I), (R) – (II), (S) – (III)

Correct answer: (P) – (IV), (Q) – (I), (R) – (II), (S) – (III)

Solution

Aromatic hydrocarbons are known to have carcinogenic effects, carbon monoxide reduces the blood's oxygen-carrying capacity, sulfur oxides can lead to bronchitis and pulmonary emphysema, and ozone is associated with chromosome damage, making this option correctly match each pollutant with its respective health effect.

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