As of December 20, 2025, the city of Delhi continues to suffer from extremely poor to hazardous air quality. TheAQI In Delhi Today 20 December 2025 has remained in this range through the entire day, according to several monitoring stations around the city’s surrounding Locals (NCR). With the continued presence of trapped pollutants and smog throughout the city, health experts are urging all residents to limit their time outdoors due to serious risks associated with long-term exposure.
Delhi has increased its enforcement efforts against air pollution by enhancing enforcement against local emissions, including vehicles, industries, and hazardous materials. Recent monitoring has indicated numerous areas in Delhi report real-time AQI Readings Between 330 and 503, which represent levels beyond the acceptable range.
Additionally, many areas are now considered to be at serious or hazardous levels of pollution; thus,, the health scientists have recommended that all residents (especially young children, the elderly, and those with respiratory conditions) stay inside and limit their exposure to outside air.
Dense fog and stagnant atmospheric conditions common characteristics of Delhi during winter months have resulted in high concentration levels due to the strong inversions and low wind speeds. The pollution has accumulated close to the earth’s surface and, thus, resulted in significant amounts of dangerous pollution being deposited within local communities throughout Delhi on a regular basis.
What precautions are the government taking?
To address increasing air pollution, Delhi’s government and the CAQM recently instituted Stage IV of the Graded Response Action Plan (GRAP), which is the strongest pollution control protocol available. Construction activity will be regulated, and non-BS-VI vehicles will not be allowed to enter Delhi.
Additionally, “No PUC, No Fuel” means that any vehicle not possessing a valid Pollution Under Control certificate will not be permitted to obtain petroleum products from any service station, regardless of quantity.
These emergency regulations are intended to assist in reducing emissions levels and pollutant concentrations. Many office employers have implemented hybrid work policies, while many schools have closed for an indefinite period due to an increase in pollution. With dense clouds of smog hovering over much of Delhi, visibility has been drastically reduced on numerous highways, causing serious travel hazards and increasing traffic-related risks.
Health professionals caution that long-term exposure to air pollution at these levels may result in respiratory illnesses, visual impairments due to eye irritations, and aggravation of existing medical conditions (i.e. asthma and heart disease). Government health advisory services have indicated that if residents choose to go outside, they should use N95 masks, and if they have vulnerable family members, they should consider installing air purifiers in their homes.
FAQ’s On AQI In Delhi Today 20 December 2025
What is the AQI in Delhi on the 20th of Dec 2025?
The AQI levels in Delhi today, on the 20th of Dec, have fluctuated between the very poor and severe Pollution levels of the AQI.
What are the Categories of AQI ‘Very Poor’ and ‘Severe’?
AQI ‘very poor’ (301 – 400) and ‘severe’ (AQI 401 – 500)
What causes such low Air Quality in Delhi?
During the winter months, Delhi suffers from many forms of weather that lend themselves to creating stagnant air masses, such as low wind speed, the occurrence of temperature inversions and fog.
Is Transportation being impacted by the Smog in Delhi?
Yes. The presence of the thick layer of smog has caused a reduction in visibility on Main routes in Delhi and has greatly increased the hazards of travelling through these areas.
