Two Deepavali nights after the Supreme Court (SC) allowed limited firecracker sales, the air quality in Delhi and several north‑Indian cities deteriorated sharply. The AQI moved from ‘poor’ to ‘severe’ on Deepavali night, with PM2.5 levels crossing 1,000 µg/m³ in many monitoring stations.
Key Developments
- SC’s order lifted the blanket ban on crackers for the 2026 Deepavali season, citing the need for quantitative evidence of health impact.
- Post‑Deepavali five‑day average AQI rose from ~350 to 376 in 2026, mirroring similar spikes in 2024 (298→358) and 2025 (259→315).
- Low‑emission crackers, developed by CSIR‑NEERI, claim 30‑45% emission reduction under lab conditions, but field data shows negligible impact on overall air quality.
- The Court warned that a total ban could push illegal crackers across borders, yet highlighted implementation challenges in policing sales.
Important Facts
Delhi’s AQI trends during Deepavali illustrate the compound effect of multiple pollution sources. Seasonal winds are weak after the monsoon, and atmospheric dryness traps particulates from vehicles, industries, construction dust, and stubble burning. Firecrackers add to this load, but their exact share cannot be isolated.
Low‑emission or “green” crackers were suggested as an alternative, but the 30‑45% lab‑based cut does not translate into a meaningful drop in city‑wide particulate concentrations.
Exam Relevance
Understanding the interplay between judicial decisions, environmental policy, and public health is crucial for GS2 (Polity) and GS3 (Environment & Ecology). Aspirants should note:
- How the Supreme Court balances constitutional freedoms (religious customs) with the right to life and health.
- The role of scientific agencies like CSIR‑NEERI in providing technical inputs for policy.
- The importance of reliable data (AQI, PM2.5) for evidence‑based governance.
Way Forward
For a sustainable solution, the Court should issue a definitive ruling before the 2027 Deepavali season, allowing the government to:
- Formulate a time‑bound policy limiting manufacture, sale, and use of firecrackers, with clear penalties for violations.
- Promote certified low‑emission crackers and enforce strict quality checks.
- Integrate real‑time air‑quality monitoring with public alerts to curb usage on high‑pollution days.
- Address ancillary sources like stubble burning through agricultural incentives.
Only a coordinated approach—judicial clarity, scientific guidance, and robust enforcement—can reconcile cultural practices with the constitutional mandate of protecting health and the environment.