CAQM revokes GRAP Stage-III amid significant improvement in air quality

1. At a Glance

2. Why in the News

3. Background & Evolution

4. Core Static Facts

5. Multi-Dimensional Analysis

Environmental - Strong westerly winds dispersed particulate load, illustrating Delhi NCR's dependence on boundary-layer meteorology rather than emissions abatement [S1]. - Stage-III curbs target construction & demolition (C&D), non-essential mining, and BS-III petrol/BS-IV diesel LMVs — direct PM10/PM2.5 sources.

Legal / Constitutional - CAQM Act 2021 overrides Air Act 1981 and EP Act 1986 in NCR for air-quality matters; directions binding under penal sanction [S3]. - Reflects exercise of Parliament's power under Entry 13/Concurrent List + Article 253 (environment treaties).

Administrative - Sub-Committee on GRAP is one of three statutory sub-committees (Monitoring & Identification; Safeguarding & Enforcement; GRAP) under the Commission. - Replaces fragmented multi-state coordination earlier handled by EPCA [S3].

Scientific / Technological - Decision-support: IITM Pune's Decision Support System (DSS) + SAFAR; forecast-driven invocation/revocation is a key 2022 reform [S1].

Health / Social - Stage-III suspension lifts construction-ban-induced daily-wage worker distress but trade-off with public-health PM exposure remains.

6. Recent Developments (last 12-18 months)

7. Prelims Hooks

8. Mains Relevance

9. Related Topics to Study Next

10. Common Errors / Trap Areas

11. Sources