The restrictions, which took immediate effect, include a ban on private construction and demolition work and curbs on BS-3 petrol and BS-4 diesel four-wheelers in NCR.

Despite Delhi's severe air quality, small and mid-scale construction persists, worsening pollution as enforcement of regulations falters amid manpower shortages.

Experts blamed calm winds and dipping temperatures for trapping pollutants close to the surface, causing Delhi’s worst air of the season.

Experts blamed calm winds and dipping temperatures for trapping pollutants close to the surface, causing Delhi’s worst air of the season.

In recent days, DSS forecasts projected that stubble burning could contribute over 30% to Delhi’s PM 2.5 levels. However, actual contributions have remained below 10%, based on fire counts recorded later in the day. 

In recent days, DSS forecasts projected that stubble burning could contribute over 30% to Delhi’s PM 2.5 levels. However, actual contributions have remained below 10%, based on fire counts recorded later in the day. 

Delhi's pollution monitoring app failed during a severe air quality crisis, sparking public anger as data went missing amid worsening haze.

Delhi's pollution monitoring app failed during a severe air quality crisis, sparking public anger as data went missing amid worsening haze.

Delhi's air quality hit a season high of 391 AQI, with 24 stations reporting 'severe' levels; inconsistencies raise concerns over data accuracy.

Delhi's air quality hit a season high of 391 AQI, with 24 stations reporting 'severe' levels; inconsistencies raise concerns over data accuracy.

Delhi's nitrogen dioxide levels have soared to three times the safe limit, contributing to a worsening air quality crisis amid hazardous PM2.5 and PM10 levels.

Delhi's nitrogen dioxide levels have soared to three times the safe limit, contributing to a worsening air quality crisis amid hazardous PM2.5 and PM10 levels.

Persistent cold northwesterly winds were expected to dip the mercury by 1-2°C over the weekend in the national capital and make nights colder

Air pollution levels in Delhi surged by more than 100 points on the Air Quality Index (AQI) on Thursday as smoke from farm fires in Punjab and firecrackers burst overnight combined with local emissions, calm winds, and falling temperatures to blanket the city in thick haze.

The grey haze that descended late on Wednesday persisted through Thursday morning, as pollution made eyes water, throats scratchy and skin itchy

The Decision Support System (DSS), which estimates how much different sources contribute to Delhi’s PM 2.5 levels, last provided data on Friday

The Decision Support System (DSS), which estimates how much different sources contribute to Delhi’s PM 2.5 levels, last provided data on Friday

Experts attributed the dip to a change in the wind direction, which led to a higher contribution of stubble burning as well

Data shows the contribution of stubble burning to Delhi’s air pollution had increased from 1.6% on Friday to 9.03% on Saturday.

Thick haze shrouds city even as AQI stays ‘poor’; experts blame temperature inversion, stagnant air and weak wind dispersion for trapped pollutants.