What effects does PM2.5 fine particulate matter have on the health of individuals in urban regions of…

Question

What effects does PM2.5 fine particulate matter have on the health of individuals in urban regions of India and across the world ? Discuss.

Ghissu Editorial · Accepted Answer

PM2.5 particles penetrate deep into the lungs and bloodstream, causing asthma, bronchitis, heart attacks, strokes and lung cancer, and hit children, the elderly and the sick hardest. Indian cities face higher exposure and weaker care than most, and air pollution caused 1.7 million premature Indian deaths in 2019.

**Introduction**

PM2.5 fine particulate matter is a critical urban health hazard in India and worldwide, causing significant mortality and morbidity.

**Health Effects of PM2.5**

1. **Respiratory and Cardiovascular Diseases**: PM2.5 particles penetrate deep into lungs and bloodstream, causing asthma, chronic bronchitis, hypertension, and heart attacks; Delhi’s Centre for Chest Surgery reports rising lung cancer among young non-smokers linked to PM2.5.

2. **Increased Mortality and Morbidity**: The Lancet (2019) estimated 1.7 million premature deaths in India from air pollution, with PM2.5 a major contributor, imposing heavy economic costs.

3. **Vulnerable Populations at Greater Risk**: Children, elderly, and urban poor face higher exposure and limited healthcare access; ==Andhra Pradesh⟦1⟧==’s 2024 CAG audit reveals health infrastructure gaps, including medical vacancies.

4. **Emerging Ultra-Fine Particle Concerns**: PM1 and smaller particles carry toxic metals causing gene damage and cancer, but monitoring remains inadequate globally and in India.

**Comparing Indian and Global Urban Impacts**

1. **Higher Pollution Levels in Indian Cities**: Delhi, Mumbai, and ==Visakhapatnam== regularly exceed WHO PM2.5 limits, unlike many global cities with stricter emission norms⟦2⟧.

2. **Policy and Infrastructure Gaps**: India struggles with enforcement and urban waste management; ==Andhra Pradesh==’s 2022 audit highlights solid waste management gaps contributing to pollution.

3. **Health System Preparedness Differences**: Developed countries have better healthcare infrastructure, while ==Andhra Pradesh== faces shortages limiting pollution-related disease management.

**Way Forward**

1. **Strengthen Monitoring and Standards**: Enforce stricter PM2.5 and ultra-fine particle norms, especially in ==Andhra Pradesh==.

2. **Improve Urban Waste Management**: Address 2022 CAG audit findings to reduce particulate emissions from waste and construction.

**Conclusion**

Comprehensive policy, infrastructure, and healthcare improvements are essential to mitigate PM2.5’s health impacts in India and globally.

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