Air quality index
Measure of air pollution
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An air quality index (AQI) is an indicator developed by government agencies to communicate to the public how polluted the air currently is or how polluted it is forecast to become. As air pollution levels rise, so does the AQI, along with the associated public health risk. Children, the elderly and individuals with respiratory or cardiovascular problems are typically the first groups affected by poor air quality. When the AQI is high, governmental bodies generally encourage people to reduce physical activity outdoors, or even avoid going out altogether. When wildfires result in a high AQI, the use of a mask outdoors and an air purifier indoors are also encouraged.
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![Delhi Faces Dangerous Pollution, GRAP 4 Enforced, Schools Closed, WFH & Vehicle Restrictions | WATCH [Video]](https://video.newsserve.net/300/v/20241118/1393702322-Delhi-Faces-Dangerous-Pollution-GRAP-Enforced-Schools.jpg) Delhi Faces Dangerous Pollution, GRAP 4 Enforced, Schools Closed, WFH & Vehicle Restrictions | WATCH Credit: Oneindia Duration: 03:30Published | |
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Delhi air pollution: Government orders 50% of its employees to work from homeDelhi air pollution: The city's Air Quality Index reached the 'severe' category at 422 on Wednesday morning.DNA - Published | |
Delhi air pollution: Toxic smog chokes Delhi-NCR; AQI at 422A thick dense layer of smog engulfed Delhi on Wednesday, blurring silhouettes as the air quality reaches to 422.DNA - Published | |
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'This is like imposing Emergency': BJP MP Manoj Tiwari distributes masks in Delhi as AQI hits 'severe plus'Amidst Delhi's severe air pollution crisis, BJP MP Manoj Tiwari distributed N95 masks at Rajiv Chowk Metro Station. He criticized the AAP government's handling of the situation, stating that while they..IndiaTimes - Published | |
Delhi pollution soars to highest level, AQI breaches 500-markAs recorded on Tuesday morning, the AQI of Anand Vihar, Ashok Vihar, Bawana, Jahagirpuri, Mundka, Rohini, Vivek Vihar, Wazirpur and Narela exceeded 500-mark.DNA - Published | |
AQI level in 'severe-plus' category; flights diverted; staggered office timings: Delhi Pollution crisis top updatesDelhi NCR is experiencing severe air pollution, prompting the implementation of GRAP Stage 4 measures, including traffic restrictions and staggered office hours. The Supreme Court has mandated these..IndiaTimes - Published | |
'Constitutional obligation of governments to provide citizens pollution free environment': SC orders GRAP 4 curbs to be in force across NCR even if AQI drops below 400The Supreme Court has directed all NCR states to strictly implement GRAP Stage 4 pollution control measures, regardless of AQI fluctuations. The court mandated the formation of monitoring teams,..IndiaTimes - Published | |
Delhi Air Pollution: 'Do not relax anti-pollution GRAP-4 curbs without informing us', SC to Delhi governmentA bench of Justices Abhay S Oka and Augustine George Masih pointed out that there was a delay in implementation of preventive measures under stage 4 of the Graded Response Action Plan (GRAP) even after..DNA - Published | |
No relaxation of GRAP-4 without court's nod: Supreme Court slams Delhi government over anti-pollution curbs delayThe Supreme Court has rebuked the Delhi government for delaying the implementation of stricter pollution control measures, ordering that GRAP Stage 4 remain in effect regardless of AQI fluctuations...IndiaTimes - Published | |
Delhi Pollution: Air quality plummets to 'severe+' category as AQI inches closer to 500 in Delhi-NCR, GRAP IV imposedUnder the GRAP stage 4, the authorities suspended in-person classes for all except for students of classes 10 and 12. Entry of trucks into Delhi has been prohibited except for the trucks carrying..DNA - Published | |
SC to hear today pleas seeking curbs to tackle air pollution as GRAP 4 imposed in DelhiDelhi's Air Quality Index (AQI) reached 441 at 4 pm and rose to 457 by 7 pm on Sunday due to unfavourable weather conditions.DNA - Published | Delhi pollution: Toxic smog chokes Delhi-NCR; AQI remains in 'severe' category, Anand Vihar at 458Among the other areas worse affected by the air pollution are Delhi's ITO with AQI at 410, Jahangirpuri at 467, JNS stadium at 396, Mundka at 465, Pusa at 409, Wazipur at 463, Vivek Vihar at 454,..DNA - Published |
Delhi-NCR air pollution in 'severe' category for third straight day, AQI crosses 436 in Anand ViharStringent anti-pollution measures under Stage 3 of the Graded Response Action Plan (GRAP) came into force on Friday, following an order from the Commission for Air Quality Management (CAQM).DNA - Published | Delhi air pollution: CM Atishi announces staggered working hours for govt workers amid 'severe' AQIOn Friday, Delhi woke up to thick smog, with visibility reduced to as low as 400 meters in areas like Safdarjung.DNA - Published |
Delhi Air Pollution: Delhi-NCR engulfed in thick smog, AQI in 'severe' categoryThe GRAP (Graded Response Action Plan) has 4 stages - stage I when AQI ranges between 201 and 300, stage II when AQI is 301-400, stage III when AQI is 401-450 and stage IV when AQI is 450-500.DNA - Published | GRAP III imposed in Delhi: What is allowed, what is banned amid 'severe' air qualityDelhi and nearby regions have been enveloped in a dense layer of smog, causing the air quality to fall into the "Severe" category with AQI readings surpassing 400 in multiple locations.DNA - Published |
As AQI slips into 'severe' category, Delhi government directs strict implementation of GRAP II measuresThe Air Quality Index (AQI) in Delhi on Thursday morning was in the 'severe' category with a reading of 428 at 9 am. The AQI on Wednesday was reported as the worst in the country, plunging into the..DNA - Published | As pollution worsens in Delhi with AQI at 'severe' level, experts at COP29 urge India to...New Delhi's air quality hit a 'severe' level for the first time this season, with the Air Quality Index (AQI) reaching 418 on Wednesday.DNA - Published |
Delhi Airport issues advisory for passengers as smog reduces visibilityDelhi Airport is operating normally despite low visibility due to high air pollution. The Air Quality Index (AQI) reached 428, categorized as "severe." However, stronger winds are expected to improve..IndiaTimes - Published | Delhi air quality dips to 'severe' category; as AQI nears dangerous...A dense layer of smog enveloped the national capital as the pollution levels continued to rise.DNA - Published |
Delhi becomes world's most polluted city, overtakes Pakistan's Lahore, AQI recorded at...At 9 am on Wednesday, the air quality was 'very poor' with a reading of 366 which later rose to 418.DNA - Published | Delhi Air Pollution: AQI hits 'Severe' category, record high in India today with 418Delhi recorded the worst air quality in India on Wednesday with a severe AQI of 418 while Noida and Gurugram also faced very poor levels.DNA - Published |
Delhi airport sees 7 flight diversions as season's first dense fog hits, AQI remains in 'very poor' categoryZero-metre visibility was recorded at the Indira Gandhi International Airport at 8.30 am with the Runway Visual Range varying between 125 and 500 metres at different locations, the IMD said. One of the..DNA - Published | Delhi-NCR: Smog envelopes city as AQI remains in 'very poor' category for 15th consecutive day, mercury to drop from...The Air Quality Index (AQI) of the national capital remained in 'very poor' category for the 15th consecutive day on Wednesday, i.e., November 13.DNA - Published |
Delhi air pollution: No relief for Delhi-NCR as air quality remains in 'very poor' category; AQI breaches 400-mark in...Some of the areas worst affected by air pollution included Wazirpur (AQI at 421), Jahangirpuri (419) and Anand Vihar (403), where the air quality dropped to 'severe' levels.DNA - Published | Delhi continues to choke amid rising air pollution, AQI breaches 350...At least a dozen stations recorded an Air Quality Index (AQI) of over 350, falling in the 'very poor' air category.DNA - Published |
Delhi Pollution: Air quality remains in 'very poor' zone, AQI reaches over 330According to the Central Pollution Control Board (CPCB), the 24-hour average Air Quality Index (AQI) at 4 pm stood at 335 ('very poor'). The city recorded an AQI of 334 at 9 am.DNA - Published | Delhi-NCR update: AQI improves slightly but remains in 'very poor' categoryThe air quality of the national capital witnessed a slight improvement on Sunday morning, i.e., November 10, with the Air Quality Index (AQI) recorded at 337.DNA - Published |
Delhi-NCR update: No relief from pollution as AQI continues to remain 'very poor'The residents of Delhi and the adjoining NCR region are seeing no relief from pollution as the Air Quality Index (AQI) continued to remain under the 'very poor' category.DNA - Published | Delhi pollution: Air quality deteriorates to 'severe' level, AQI crosses 400 in Anand Vihar; spike in Asthma patientsThe air quality in Delhi on Friday worsened in Anand Vihar, Ashok Vihar, and Bawana among others with AQI falling to the 'severe' category.DNA - Published |
Delhi: Air pollution in national capital spike during Chhath Puja, AQI reaches 'severe' levelA layer of smog was seen blanketing many areas in the city. Mist or smog is expected to cover the city at night, according to an IMD forecast.DNA - Published | Delhi AQI Update: Air quality turns 'severe', AQI reaches...An AQI is considered 'poor' between '200 and 300', 'very poor' at '301 and 400', 'severe' at '401-450,' and 450 and above is 'severe plus.'DNA - Published |
Delhi-NCR pollution: Air quality remains in 'severe' category; Anand Vihar, Chandni Chowk record AQI at...The Air Quality Index (AQI) crossed 400 in many places like Anand Vihar (457) Ashok Vihar (419) and Bawana (414).DNA - Published | Delhi pollution: Air quality in Delhi-NCR further deteriorates, AQI hits 'severe' levelIn areas like Punjabi Bagh, Wazirpur, Ashok Vihar, Bawana, Jahangirpuri, Mundka, Rohini, Moti Bagh, and Patparganj, the air quality worsened with AQI hit the 'severe' category.DNA - Published |
Delhi pollution: Air quality worsens in capital, AQI worst in India at...Despite the temporary relief provided by the winds, Delhi saw a spike in pollution levels following Diwali, with a noticeable jump recorded on Sunday.DNA - Published | Delhi AQI touches 400: Many times over WHO limit, pollution in 'severe' categoryIn most areas of Delhi, the AQI has once again reached the category of very poor to hazardous.DNA - Published |
Delhi Air Pollution: National capital's AQI improved to 'poor' category two days after Diwali due to...On Friday a day after the Diwali celebration, the city's air quality was recorded in the 'very poor' category, according to the Central Pollution Control Board (CPCB).DNA - Published | No respite for citizens, Delhi registers warmest October in 73 yearsMost areas in the capital recorded an Air Quality Index (AQI) over 350, raising health concerns for residents.DNA - Published |
Delhi residents defy firecracker ban, illuminate night sky with Diwali celebrationsAt 9 pm, Delhi's Air Quality Index (AQI) was recorded at 327 including at Alipur and Anand Vihar.DNA - Published | Weather update: Delhi-NCR witnesses improved AQI after continuous rains, check IMD forecast hereThe national capital and adjoining NCR witnessed sunshine and clear skies following days of intermittent rainfall in the city.DNA - Published |
Delhi records year's cleanest air quality as AQI drops to...Delhi also exceeded its yearly and seasonal average rainfall in early September, with total precipitation surpassing 1,000 mm.DNA - Published | Weather update: Heavy rain hits Delhi-NCR; IMD issues yellow alert till July 27, check detailsDelhi's Air Quality Index (AQI) was in the "moderate" category, with a reading of 109 at 4 pm, as reported by the Central Pollution Control Board (CPCB).DNA - Published |
Delhi breathes cleanest air in 281 days as AQI improves to 'satisfactory'IndiaTimes - Published | Delhi-NCR: Ban on non-essential construction, plying of BS-III petrol, BS-IV diesel cars lifted as AQI improvesThe Stage III restrictions under GRAP were activated on Sunday after air quality plummeted to 'severe plus' levels.DNA - Published Also reported by •IndiaTimes |
GRAP Stage-III imposed in Delhi-NCR amid 'severe' AQI, know what's allowed and what's notAmidst deteriorating air quality in the area, the central government issued immediately implement GRAP Stage-III curbsDNA - Published | Air quality worsens again as 13 out of 26 suburbs showed poor AQIAfter being in a higher moderate category for the last few days, Mumbai's air quality index (AQI) rose to almost near a poor mark (196) of 200 on Thursday thus further deteriorating the air quality..IndiaTimes - Published |
IMD update: Delhi-NCR in grip of cold wave, dense fog, AQI remains 'very poor' in Noida, GhaziabadResidents sought refuge in night shelters across various parts of the national capital as the cold wave intensified on the intervening night of Tuesday.DNA - Published | Delhi shivers as minimum temperature hits 7 degrees, AQI continues to be 'very poor'The temperature in the national capital was recorded at 7 degrees Celsius at 5:30 am.DNA - Published |
