Air Quality & Weather Concern: Cold-Wave, Smog and Public Health Risks in Delhi-NCR

Delhi-NCR experienced a dangerous combination of intense smog and sharp temperature drop on 6 December 2025, pushing air quality into hazardous zones and triggering weather-related health concerns across the region. Monitoring stations in several parts of Delhi recorded Air Quality Index (AQI) levels close to 380, classified as “very poor” to “severe”, according to reports from The Economic Times and NewsDrum.

The persistent smog layer, coupled with falling temperatures, created stagnant atmospheric conditions that trapped pollutants close to the surface, worsening visibility and respiratory discomfort among citizens.

Cold-Wave Alert in North India

IMD Warns of Severe Winter Conditions Across Key States

Alongside pollution concerns, the India Meteorological Department (IMD) issued a cold-wave alert for several northern states including Delhi, Punjab, Haryana, and parts of Rajasthan. As reported by Navbharat Times, minimum temperatures are expected to drop further in the coming days, marking the onset of a particularly harsh winter spell.

Dense fog conditions are also likely to intensify, affecting road, rail and air traffic. Early morning and late-night commuters may face disruptions due to poor visibility and icy winds.

Public Health Implications

High Risk for Children, Elderly & Those with Pre-existing Conditions

The combined impact of smog and cold-wave conditions poses significant public health risks, particularly for vulnerable groups such as children, senior citizens, asthma patients and those with cardiovascular ailments. Hazardous AQI levels are known to exacerbate respiratory infections, trigger asthma attacks, reduce lung function, and increase chances of heart-related emergencies.

Hospitals in the region have already reported increased footfall for respiratory complaints, while doctors caution that the next few days may see a spike in pollution-linked illnesses.

Governance & Policy Imperatives

Urgent Need for Pollution Control and Urban Resilience Measures

The situation underscores the urgency of strengthening pollution-control mechanisms, including curbing vehicular emissions, regulating industrial pollution, enforcing construction-dust norms, and scaling up public-transport solutions.

Experts also emphasise the need for long-term urban planning reforms, such as green buffers, improved waste management, and rapid adoption of clean energy solutions. Public health advisories recommending reduced outdoor exposure, use of masks, and air purifiers remain essential in the short term.

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