Delhi Chokes as Toxic Smog Pushes Air Quality Into Emergency Zone

According to official data, the city’s average Air Quality Index crossed 460, placing it firmly in the “severe-plus” category. In pollution hotspots such as Anand Vihar, AQI readings spiked beyond 700, among the highest recorded this season. The toxic haze led to the cancellation of more than 170 flights, while numerous trains were delayed due to poor visibility, bringing daily life in parts of the capital to a standstill.

In response, authorities activated Stage 4 of the Graded Response Action Plan, the most stringent level designed for extreme pollution episodes. All construction and demolition activities were ordered to stop immediately, the entry of non-essential trucks into Delhi was restricted, and coal- and firewood-based tandoors were banned. Offices were instructed to operate with only 50 percent staff capacity, while schools shifted to hybrid learning modes for students up to Class 11 in an effort to reduce exposure among children.

The health impact was immediate and visible. Residents reported severe breathing difficulties, eye irritation, and persistent coughing. Journalist Bhupendra Chaubey described struggling to breathe even while using air purifiers indoors, underscoring the intensity of the crisis. Reflecting international concern, the Singapore High Commission issued an advisory urging its citizens in Delhi to remain indoors and limit outdoor exposure.

Environmental assessments attributed nearly 51 percent of the pollution load to vehicular emissions, compounded by stagnant weather conditions that trapped pollutants close to the ground. While meteorological forecasts suggested a marginal improvement in air quality to the “very poor” category by Tuesday, officials cautioned that conditions would remain unhealthy and restrictions could continue if pollution levels fail to ease.

The episode once again highlights Delhi’s recurring winter smog emergency and the fragile balance between urban activity, environmental safeguards, and public health. As authorities scramble to contain the immediate fallout, the crisis reinforces the urgency of long-term solutions to address air pollution in one of the world’s most polluted capitals.