Delhi is struggling under a dense blanket of smog this week, with air quality plunging into the “severe” category as the Air Quality Index hovered around 456 early Monday morning. The thick haze has drastically reduced visibility across the capital, turning everyday commutes into slow-moving ordeals and disrupting flight operations at the busy Indira Gandhi International Airport. Once again, the onset of winter has exposed how seasonal weather patterns trap pollutants close to the ground, forcing millions to breathe toxic air.

Meteorological conditions are playing a major role in the worsening situation. Calm winds, falling temperatures, and high moisture levels have combined to lock in emissions from vehicles, industrial activity, and farm fires in neighboring states. As a result, Sunday’s 24-hour average AQI reached 461, making it the second-worst December air quality reading on record and alarmingly close to last year’s peak pollution levels. Several areas, including Rohini and Anand Vihar, recorded AQI values near 500, placing children, elderly residents, and people with respiratory illnesses at serious health risk.

The deteriorating air has also triggered widespread travel disruptions. Authorities at Delhi’s airport issued fog alerts as visibility dropped below 200 meters in some locations, prompting airlines to warn passengers of delays and cancellations. Dozens of flights were affected early Monday, reflecting a pattern seen during previous winters. Road travel proved equally challenging, with near-zero visibility reported in areas such as Safdarjung, leading to traffic congestion and safety concerns across the city.

The Commission for Air Quality Management enforced Stage IV of the Graded Response Action Plan. Measures include restrictions on older diesel vehicles, a halt to construction activities, reduced office attendance, and a shift to hybrid schooling where possible. Health experts have advised residents to wear masks outdoors, avoid unnecessary travel, and limit exposure by carpooling or working from home. While weather forecasts suggest that slightly stronger winds later in the week may offer temporary relief, officials caution that the improvement may be limited.

Medical professionals continue to urge caution, recommending that residents stay indoors during peak pollution hours, use air purifiers, and avoid strenuous physical activity. Extremely high levels of fine particulate matter significantly increase the risk of asthma attacks, heart problems, and other respiratory conditions. Real-time air quality monitoring has become essential for planning daily routines, but long-term solutions remain critical. Experts stress that expanding electric public transport, enforcing industrial emission controls, and eliminating stubble burning are key to preventing these recurring winter pollution crises. For now, Delhi residents are being asked to endure yet another season of hazardous air while hoping for lasting change.

Disclaimer: This image is taken from IANS.