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26 May 2026 1 views

Chronic Obstructive Pulmonary Disease (COPD)

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theIAShub
26 May, 2026
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Chronic Obstructive Pulmonary Disease (COPD)
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Progressive lung disease causing breathing difficulties, strongly linked to air pollution exposure and a leading cause of mortality in India.

Why in News

Studies link road dust exposure to severe aggravation of COPD cases in Delhi, with hospitals seeing sharp spikes in emergency admissions during dry winter spells when PM₁₀ levels exceed 1,700 µg/m³.

Key Facts

  • Definition: Progressive lung disease causing persistent respiratory symptoms including breathlessness, chronic cough, and mucus production due to airway obstruction.
  • Primary Causes: Long-term exposure to tobacco smoke, air pollution, occupational dust, and respiratory infections.
  • Mechanism: Fine mineral dust particles cause immediate tissue inflammation and deep lung scarring, permanently reducing lung elasticity.
  • India's Burden: COPD is the second leading cause of death in India, accounting for 1 million+ deaths annually (WHO data).
  • Air Pollution Link: Road dust containing heavy metals (lead, cadmium, nickel) from brake pads and tyre wear directly enters the bloodstream. (UPSC Mains Usage: Public health dimension of air pollution in GS2/GS3)
  • Vulnerable Groups: Elderly population, traffic police, street vendors, and children living near high-traffic corridors face highest risk.
  • Economic Impact: Lost productivity and healthcare costs from COPD estimated at ₹35,000 crore annually in India.

Quick Revision Box

Term

Detail

Disease Type

Progressive lung obstruction

Key Symptoms

Breathlessness, chronic cough, mucus

Primary Trigger (Urban)

Air pollution, particularly PM₂.₅

India Death Rank

2nd leading cause of death

Annual Deaths (India)

1 million+

Economic Burden

₹35,000 crore annually



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