Today, Delhi's air quality deteriorated significantly, with a 24-hour average Air Quality Index (AQI) reading of 355, placing it firmly in the "Very Poor" category, according to the Central Pollution Control Board (CPCB). This sharp rise from an AQI of 255 over the weekend is attributed to calm weather conditions that have trapped pollutants closer to the ground, limiting dispersal. Some areas like Bawana, Burari, and Jahangirpuri reported even more extreme "Severe" pollution levels, with PM2.5 levels—the most concerning particulate matter for respiratory health—reaching 110.6 micrograms per cubic meter.
Vehicular emissions are currently the top contributor to pollution, accounting for about 13% of the city's overall AQI. Other contributing factors include local construction dust and seasonal crop residue burning in neighboring states. Health authorities have advised vulnerable groups, such as children, the elderly, and those with respiratory conditions, to limit outdoor activities and take precautions to reduce exposure.
This situation has highlighted the urgent need for pollution control measures under the Graded Response Action Plan (GRAP), especially as winter approaches, a season when air quality in the region typically worsens further?.