India Is Focusing on PM10, but PM2.5 Is the Real Threat

Context:

  • A recent report by the Sustainable Futures Collaborative (SFC) evaluates air pollution mitigation strategies across Brazil, China, Mexico, and the United States to draw lessons for India.
  • The report flags a critical gap in India’s air quality approach — an overemphasis on PM10, while the more harmful PM2.5 remains insufficiently addressed.

Key Highlights:

Findings of the SFC Report

  • Air pollution is not a top political priority in India, largely due to:
    • Limited public awareness of health impacts.
    • Poor understanding of economic and healthcare costs of polluted air.
  • In contrast, countries such as China and Mexico achieved improvements through:
    • Top-down political commitment
    • Clearly defined pollution reduction targets
    • Coordinated inter-agency action plans

India’s Current Strategy: NCAP

  • India’s National Clean Air Programme (NCAP) primarily targets PM10 reduction, unlike global best practices that prioritize PM2.5.
  • Reason for PM10 focus:
    • Existing monitoring infrastructure in many non-attainment cities measures PM10 more consistently.
    • Leads to surface-level interventions such as road sweeping and dust suppression.

Institutional Constraints

Pollution Control Boards

  • State Pollution Control Boards (SPCBs) and Pollution Control Committees (PCCs) are:
    • Understaffed
    • Underfunded
  • Results in weak enforcement of industrial emission standards.
  • Compliance monitoring is sometimes outsourced, raising concerns of conflict of interest.

Administrative Overload

  • Environmental engineers oversee:
    • Air and water pollution
    • Solid, plastic, biomedical, and hazardous waste
  • Expanding responsibilities dilute focus on air quality monitoring and enforcement.

Comparative International Experiences

China (Beijing):

  • Adopted a top-down approach with strict targets.
  • Relocated polluting industries outside the city’s airshed.

Mexico City:

  • Established science-based air quality standards.
  • Introduced unleaded petrol.
  • Expanded public transport networks.

Poland:

  • Air quality reforms driven by civil society movements demanding accountability.

India’s Reform Trajectory

  • Initial air quality action driven by Public Interest Litigations (PILs) and Supreme Court interventions.
  • Sustained, executive-led governance response remains limited.

Relevant Prelims Points:

  • Issue: Rising health risks from PM2.5 despite focus on PM10.
  • Causes: Monitoring limitations, weak institutions, policy misalignment.
  • Government Initiative: National Clean Air Programme (NCAP).
  • Benefits of PM2.5 Focus: Reduced morbidity, lower healthcare burden.
  • Challenges: Institutional capacity gaps, political prioritisation.
  • Impact: Limits effectiveness of India’s air pollution mitigation efforts.

Relevant Mains Points:

  • Conceptual Clarity:
    • PM2.5: Fine particulate matter that penetrates deep into lungs and bloodstream, highly toxic.
    • PM10: Coarser particles, less harmful than PM2.5.
    • Non-attainment cities: Cities failing to meet National Ambient Air Quality Standards.
  • Governance Analysis:
    • India’s air governance remains reactive and litigation-driven.
  • Way Forward:
    • Shift NCAP targets decisively towards PM2.5 reduction.
    • Expand and modernize air quality monitoring networks.
    • Strengthen staffing, funding, and autonomy of SPCBs and PCCs.
    • Adopt airshed-based planning and inter-state coordination.
    • Build political and public consensus by highlighting health and economic costs.

UPSC Relevance (GS-wise):

  • GS 3: Environment & Ecology, Air Pollution
  • GS 2: Governance, Environmental Regulation
  • Prelims: PM2.5, PM10, NCAP, Non-attainment cities

 

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