Which of the following diseases are caused by atmospheric particulate matter?

1.Asthma

2.Melanoma

3.Dry eye syndrome

4.Bronchitis

5.Chronic obstructive pulmonary disease (COPD)

A1, 2, 3 & 4 only

B2, 3, 4 & 5 only

C1, 3, 4 & 5 only ✓ Correct

D1, 2, 4 & 5 only

Correct answer: (C) 1, 3, 4 & 5 only

Explanation

Particulate matter aggravates asthma, dry eye syndrome, bronchitis and COPD, Statements 1, 3, 4 and 5.

Statement 1, asthma, is triggered as fine particles inflame the airways.

Statement 3, dry eye syndrome, arises when particles irritate the eye surface.

Statement 4, bronchitis, and Statement 5, COPD, follow chronic exposure damaging the lungs.

Statement 2, melanoma, is a skin cancer linked to ultraviolet radiation, not particulate matter.

Fine PM2.5 penetrates deepest and is the most harmful fraction to health.

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