The air quality index (AQI) is an index for reporting air quality on a daily basis. It is a measure of how air pollution affects one's health within a short time period. The purpose of the AQI is to help people know how the local air quality impacts their health. The Environmental Protection Agency (EPA) calculates the AQI for five major air pollutants, for which national air quality standards have been established to safeguard public health.
While the first half of December saw six 'moderate' air quality days, November remained highly polluted
While the air remains hazardous in the national capital, it shows slight improvement compared to Saturday, when many areas of the city reported an alarming AQI of 434
According to the Graded Response Action Plan (GRAP), the capital's air quality currently falls under Stage III (Severe), which is characterised by AQI values between 401 and 450
Despite the enforcement of Stage-IV measures under the Graded Response Action Plan (Grap), pollution levels show little respite
Delhi cold wave: Delhi recorded a minimum temperature of 7 degrees Celsius on Thursday morning; AQI was recorded at 448 on Thursday
The city is currently under Grap Stage-IV, which bans all construction work within city limits and prohibits the entry of unnecessary polluting trucks inside the capital
The air quality is expected to remain in the severe range on Thursday
In compliance with the restrictions of GRAP 4, instructions were given to conduct classes in hybrid mode in all schools except classes 10th and 12th
The air quality in Delhi deteriorates to 'severe plus'; strict measures under Grap Stage IV enforced to curb pollution
GRAP-3 has again been implemented in Delhi NCR by the Commission for Air Quality Management (CAQM). Up till Class V, all Delhi-NCR schools will be now be conducted in hybrid mode
The CAQM reimposes Grap-III in Delhi-NCR as AQI hits 355. Construction halted and diesel trucks banned; SC calls for pan-India air pollution action plan
Delhi cold wave: The IMD predicts that the cold wave may strengthen in the coming days, with shallow fog expected across various parts of Delhi-NCR
This sharp decline in air quality is attributed to low wind speeds, vehicle emissions, falling temperatures, and stubble burning
Cold wave provides no relief as homeless in Delhi seek shelter and warmth; AQI remains in the 'poor' category
According to the revised plan, inter-state buses from NCR states, except those EVs and those running CNG or BS-VI diesel, will not be allowed to enter Delhi
Cold wave eases in Delhi after temperatures dropped to 4 degrees Celsius on Thursday, moderate to poor AQI in city
The Air Quality Early Warning System predicts Delhi's air quality will remain in the 'poor' category for the next two to three days
The technology was proposed as part of Delhi's 21-point Winter Action Plan to combat worsening air quality
Delhi's AQI dipped despite persisting winds of 8-10 kmph on Wednesday evening due to 'cold wave' conditions
Delhi's air quality witnessed a remarkable turnaround over the weekend, driven by fast winds and light rainfall, resulting in one of the cleanest starts to December in years