Delhi is once again confronting a sharp rise in air pollution as the city moves toward the Diwali festival. The Air Quality Index (AQI) has crossed the 300 mark, classifying the air as “very poor” and exposing millions of people to heightened respiratory risks.
Winter weather and regional factors fuel the haze
The deterioration is driven by a mix of seasonal and regional influences. Falling temperatures, low wind speeds and the return of north‑westerly breezes have carried smoke from crop‑stubble burning in Punjab and Haryana into the capital. In addition, vehicle exhaust, industrial emissions and dust contribute to the particulate load that the AQI measures.
Firework bans struggle to curb the surge
Diwali celebrations traditionally involve fireworks that release fine particles and harmful gases. The Supreme Court has permitted only “green” firecrackers—those with modified chemical formulations and QR‑code verification—to be sold and used, and it has restricted the timing of their use to two narrow windows on 7 and 8 November. Despite these measures, officials acknowledge that conventional crackers continue to be sold as green alternatives, making enforcement difficult.
Government response under the Graded Response Action Plan
Delhi authorities have invoked Stage II of the Graded Response Action Plan (GRAP), a tiered set of emergency actions that tighten as pollution worsens. Key steps include:
- Intensive road cleaning to reduce dust accumulation.
- Higher parking charges aimed at discouraging private vehicle use.
- Expanded public transport, with the Delhi Metro adding 20 extra weekday train trips.
- Staggered government office hours to ease traffic congestion during peak periods.
- Hybrid schooling and work‑from‑home arrangements for vulnerable groups.
These actions are intended to limit emissions from traffic and other urban sources while the city awaits more favorable weather conditions.
Health implications and public concern
Air that is classified as “very poor” (AQI 301‑400) can aggravate asthma, bronchitis and other respiratory ailments, especially among children, the elderly and those with pre‑existing conditions. The latest reading of 377 underscores the urgency of protective measures, such as staying indoors during peak pollution hours and using masks that filter fine particulate matter.
Looking ahead: can the bans make a difference?
While the green‑firecracker policy reflects an effort to balance cultural traditions with environmental health, its impact remains uncertain. The continued rise in AQI suggests that fireworks are only one part of a broader pollution problem that includes agricultural burning and urban emissions. Experts note that without coordinated action across states to curb crop‑stubble fires, any reduction from firecracker restrictions may be outweighed by other sources.
As Diwali approaches, Delhi residents face a dilemma: celebrate the festival of lights amid a haze that threatens their lungs. The city’s experience highlights the challenge of aligning cultural practices with air‑quality goals, and it underscores the need for sustained, multi‑sectoral strategies to protect public health during India’s most polluted season.
