 "What is Air Quality Index (AQI)")
Air Quality Index
What is Air Quality Index (AQI)
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.
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Latest Updates on Air Quality Index
Delhi AQI today: Air quality improves to 'poor'; Grap III curbs lifted
Air quality in Delhi improved slightly with AQI improving to 'poor' and prompting CAQM to ease some curbs. However, fog and low visibility are expected to cause some travel disruptions
 "Delhi AQI today: Air quality improves to 'poor'; Grap III curbs lifted")
Delhi air quality improves to 'very poor'; many flights delayed due to fog
Second day of new year sees minor improvement in Delhi's air quality, but fog and pollution persist across most stations; AQI at 311
 "Delhi air quality improves to 'very poor'; many flights delayed due to fog")
Delhi rings in New Year with 'very poor' air; IMD issues rain alert
Average AQI stood at 372 on January 1, with eight stations in the severe category and low visibility disrupting travel across the capital as the IMD issued a rain alert
 "Delhi rings in New Year with 'very poor' air; IMD issues rain alert")
Delhi's AQI stays 'severe' as nearly 100 flights cancelled due to dense fog
Delhi's air quality remains severe as dense fog disrupts flight and train services on New Year's eve, causing delays, cancellations and poor visibility across the capital
 "Delhi's AQI stays 'severe' as nearly 100 flights cancelled due to dense fog")
Fixing India's air is achievable, but only with coordinated action
From vehicular pollution to construction dust, coordinated solutions exist. What's needed now is the will to act
 "Fixing India's air is achievable, but only with coordinated action")
Delhi air quality stays 'severe' in most parts amid red alert for dense fog
Delhi experiences severe winter smog affecting visibility, travel, and daily life; IMD says conditions to remain same until January 1
 "Delhi air quality stays 'severe' in most parts amid red alert for dense fog")
Delhi AQI update: Air quality worsens to 'severe'; smog disrupts visibility
Delhi recorded an average AQI above 400 as very dense fog and smog reduced visibility, disrupted flights and trains, and prompted safety advisories across the capital
 "Delhi AQI update: Air quality worsens to 'severe'; smog disrupts visibility")
Delhi exploring tie-up with IIT Kanpur to find pollution sources: Sirsa
The proposed collaboration aims to strengthen Delhi's ability to identify pollution sources at a granular level, assess their impact, and enable targeted, timely interventions across sectors
 "Delhi exploring tie-up with IIT Kanpur to find pollution sources: Sirsa")
Akums President Finance Rajkumar Bafna resigns citing Delhi pollution
The drugmaker said Bafna will step down on December 31, 2025, after citing Delhi's pollution levels in his resignation letter
 "Akums President Finance Rajkumar Bafna resigns citing Delhi pollution")
Delhi's AQI 'very poor'; MeT issues 'orange' alert for dense fog on Monday
Delhi's air quality slipped to the 'very poor' category on Sunday with an AQI of 390
 "Delhi's AQI 'very poor'; MeT issues 'orange' alert for dense fog on Monday")
Delhi air quality turns 'severe' as several stations record AQI above 400
Delhi's air quality remained in the severe category as dense fog, calm winds and falling temperatures trapped pollutants, prompting permanent Grap-4 curbs
Delhi air quality slips into 'severe' category amid dense fog and cold wave
Calm winds and dense fog trap pollutants as seven monitoring stations record 'severe' AQI and 24 of 39 in 'very poor' category
 "Delhi air quality slips into 'severe' category amid dense fog and cold wave")
Fog blankets Delhi as air quality slips to 'very poor' again; AQI at 305
Delhi's air quality deteriorated a day after Christmas, with 24 out of 39 monitoring stations reporting very poor AQI as fog returned to the national capital
 "Fog blankets Delhi as air quality slips to 'very poor' again; AQI at 305")
Delhi breathes easier on Christmas as AQI dips below 300 after two weeks
On December 25, the AQI improved to 220, helped by strong winds, though forecasts warn of possible deterioration ahead
 "Delhi breathes easier on Christmas as AQI dips below 300 after two weeks")
'I get infections in Delhi': Gadkari says transport causes 40% of pollution
Amid hazardous air quality in Delhi, Nitin Gadkari acknowledges the transport sector's 40% contribution to pollution, saying he develops infections after short stays in the capital
 "'I get infections in Delhi': Gadkari says transport causes 40% of pollution")
'Reduce GST on air purifiers': Delhi HC raps Centre over pollution crisis
The Delhi High Court criticised the Centre over its failure to tackle the city's air pollution and asked it to consider cutting the 18 per cent GST on air purifiers to provide relief to citizens
Delhi's AQI improves to 349; govt announces fresh measures for pollution
Thick smog continues to engulf Delhi and adjoining regions. Govt unveils pollution control measures, including water body revival and DTC reforms
'11 years of neglect': Delhi L-G blames Kejriwal, AAP for pollution crisis
According to Delhi L-G VK Saxena, the 10-month-old BJP government is 'trying to do everything possible' to undo the 'wrongs' of the previous AAP government
 "'11 years of neglect': Delhi L-G blames Kejriwal, AAP for pollution crisis")
Should keep politics aside and work: Robert Vadra on Delhi Air Pollution
The Air Quality Index (AQI) in Delhi was recorded in the 'hazardous' category on Tuesday morning, significantly impacting visibility and daily life
 "Should keep politics aside and work: Robert Vadra on Delhi Air Pollution")
Why men in Delhi breathe more toxic air than women, a five-year study finds
A five-year Delhi study finds men absorb up to 1.4 times more particulate pollution than women, mainly due to outdoor time and larger lung volumes, with walking and commutes sharply raising doses
 "Why men in Delhi breathe more toxic air than women, a five-year study finds")
