GS3 › Pollution and Environmental Governance

Revision note: Air Pollution: Sources, Health Effects and Policy

  • ~21 lakh deaths (2021, State of Global Air 2024); India PM2.5 standard 40 µg/m³ vs WHO 5 µg/m³ (2021)
  • Pollutants: PM10, PM2.5, SO₂, NOx, O₃ (secondary), CO, NH₃, black carbon; NAAQS 2009 (12 pollutants); AQI 2014 (8 pollutants, 6 categories)
  • Winter: inversion, low wind, IGP bowl, stubble burning
  • Air Act 1981 (CPCB/SPCB); Jan Vishwas 2023 decriminalisation; NCAP Jan 2019 (130 cities; 40% PM10 by 2025–26)
  • CAQM Act 2021 (replaced EPCA); GRAP; BS-VI Apr 2020; scrappage 2021; FGD norms 2015 (exemptions 2025); Ujjwala 2016
Revision card summarising Air Pollution: Sources, Health Effects and Policy
One-page visual summary of the key points to revise.

Source: https://upscprep.in/upsc/gs3/pollution-and-environmental-governance/air-pollution-sources-health-effects-and-policy/ · UPSCPrep.in

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