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 Pollution: Air quality in national capital turns 'severe' again, AQI recorded at...The maximum temperature was recorded three notches above normal at 24.1 degrees Celsius on Sunday.DNA - Published | |
No relief from pollution, Delhi's AQI remains 'very poor' at 388The Air Quality Index in several areas of the national capital was recorded as 'very poor.'DNA - Published | |
Delhi wakes up to dense fog; air quality remains 'severe'The Air Quality Index (AQI) in the city also remained in the 'severe' category on Friday. The AQI measured in the national capital was 434 at 8. AM as per the Central Pollution Control Board (CPCB).DNA - Published | |
Delhi-NCR weather update: National Capital chokes as AQI stays at 448 amid cold wave, no relief despite GRAP 4 in placeGRAP stage IV measures have been in effect in the entire NCR since December 16 after the deterioration in air quality.DNA - Published | |
Delhi Pollution: Air quality in capital nears 'severe plus', mercury settles at 23 degree C, AQI reaches...Of the 36 monitoring stations in the city, 32 recorded AQI in the 'severe plus' category.DNA - Published | |
Delhi-NCR weather update: Mercury drops to 5 degrees celsius, air quality remains in 'severe' category with AQI...Residents of the national capital woke up to a harsh winter morning, facing both decreasing temperatures and rising AQI levels.DNA - Published | |
GRAP Stage 4 implemented in Delhi as AQI breaches 400-mark; know how will schools operate, what's allowed, what's notThe order cited the Supreme Court order, where the apex court had stated that if the Commission finds AQI breaching 350 mark, Stage-III measures should be implemented and if the AQI crosses 400 then..DNA - Published | |
Delhi-NCR Air Pollution: GRAP 4 curbs invoked as air quality turns severe, AQI reaches...Delhi's average AQI rose to 399 at 9 PM on Monday and breached the 400 mark at 10 PM.DNA - Published | |
Delhi-NCR update: Air quality continues to be in 'poor' category with AQI 246The Air Quality Index (AQI) in the national capital on Sunday continued to be in the 'poor category' with further deterioration as the city experienced cold wave conditions.DNA - Published | |
Delhi temperature drops to 7 degrees, air quality remains in 'poor' categoryThe national capital continued to grapple with poor air quality on Saturday morning, with the Air Quality Index (AQI) recorded at 212, as per the Central Pollution Control Board (CPCB) .DNA - Published | |
Delhi AQI: Air quality deteriorates to 'Poor' again, GRAP restrictions relaxedThe average air quality of Delhi as per the Central Pollution Control Board's (CPCB) AQI index was 259 and has been categorised as 'poor'.DNA - Published | |
Delhi's air quality remains 'poor' at 231; thin layer of smog limits visibilityAccording to the Central Pollution Control Board (CPCB), the AQI in Delhi was recorded at 231 as of 8.00 am on Monday morning.DNA - Published | |
Delhi Weather Update: AQI dips to 'poor' category again, now reaches...The primary pollutants on Saturday were PM2.5 and PM10, with PM2.5 levels recorded at 93.2 µg/m³ and PM10 levels at 185.4 µg/m³ at 2 pmDNA - Published | Delhi pollution: Air quality nears 'poor' level in Delhi-NCR, AQI at...As per data of CPCB, AQI in Alipur was 231, 225 in Ashok Vihar, 262 in Bawana and 274 in Burari crossing. Notably, some areas recorded a 'moderate' AQI.DNA - Published |
School reopening news: Delhi schools to resume classes in physical mode after SC order on GRAP measuresThe bench clarified that GRAP III should be implemented if the AQI surpasses 350, and GRAP IV must be imposed if it exceeds 400.DNA - Published | Delhi AQI: Air quality improves to 'moderate', SC relaxes GRAP-4 restrictions in Delhi-NCRThe overall Air Quality Index (AQI) recorded in Delhi was 183, categorised as 'moderate' as of 7 am on Friday, according to the data of the Central Pollution Control Board (CPCB).DNA - Published |
After 18 days of severe curbs, SC allows lifting of Grap-4The Supreme Court eased anti-pollution measures in the National Capital Region (NCR), shifting from GRAP Stage 4 to GRAP-2 due to improved air quality. However, the court mandated immediate..IndiaTimes - Published | GRAP-4 restrictions in NCR lifted after SC order; AQI improves to ‘moderate’Delhi breathes easier as air quality improves, prompting authorities to lift GRAP stages 3 and 4. Construction resumes, but stage 1 and 2 restrictions remain. This follows Supreme Court intervention,..IndiaTimes - Published |
Delhi pollution: SC allows relaxation of GRAP-4 restrictions in national capital as AQI improvesThe Supreme Court on Thursday permitted the Commission for Air Quality Management (CAQM) to ease the Graded Response Action Plan (GRAP) Stage-IV restrictions to GRAP Stage-II.DNA - Published | SC relaxes GRAP-4 measures in NCR, allows implementation of GRAP-2 to check pollution levelsThe Supreme Court eased Delhi-NCR's pollution curbs, allowing GRAP-2 implementation but mandating GRAP-4 if AQI exceeds 400. The court criticized delayed compensation for construction workers,..IndiaTimes - Published |
SC refuses to relax GRAP-4 restrictions in Delhi NCR until 'downward trend in AQI'; next hearing on December 5The Supreme Court orders strict enforcement of GRAP-4 measures in NCR due to high pollution levels. The court expresses dissatisfaction with ineffective implementation and demands the presence of chief..IndiaTimes - Published | Delhi pollution: Air quality improves to 'poor' category, AQI at 274; schools to remain in....A spell of favourable wind conditions has brought relief to the city, effectively dispersing pollutants and improving air quality to the 'poor' category, as per reports.DNA - Published |
Delhi Air Pollution: AQI continues to remain under 'very poor' category, check area-wise list hereThe Air Quality Index (AQI) of the national capital remained under the 'very poor' category on Sunday, i.e., December 1, according to the Central Pollution Control Board (CPCB).DNA - Published | Delhi pollution: Delhi-NCR records coldest morning of season amid 'very poor' air quality, AQI dips to...Central Pollution Control Board data reported that Delhi AQI increased by 22 points from Wednesday at 303 to Thursday at 325DNA - Published |
Weather update: Delhi-NCR records coldest morning of season, AQI still 'Very Poor', minimum temperature at...Delhi witnessed a drastic temperature plunge over the past few days due to cold northwesterly winds taking pace.DNA - Published | School reopening news: Will schools in Noida, Greater Noida open for physical classes today?This decision follows a significant deterioration in the Air Quality Index (AQI) in Delhi-NCR, which has exceeded the "Severe+" category with readings above 450.DNA - Published |
Delhi-NCR Air pollution: SC refuses to relax GRAP-IV measures, asks CAQM to consider relaxing norms for schoolsLast week, GRAP-IV was imposed in the national capital after the Air Quality Index (AQI) crossed the 450 mark, and the apex court had said that the curbs can't be eased without its approval.DNA - Published | Delhi-NCR air pollution: Will schools in Delhi open this week amid 'poor' AQI? This is what SC saidOn Monday morning, Anand Vihar reported an AQI of 334, Ashok Vihar at 312, Bawana at 322, Chandni Chowk at 244, Dwarka at 297, IGI Airport at 260, Jahangirpuri at 323, Mundka at 340, Narela at 311,..DNA - Published |
Delhi pollution: Supreme Court suggests reopening schools, refuses to relax curbsThe Supreme Court upheld GRAP-4 restrictions, directing states to utilise labour cess for worker support during the construction ban. It criticized the Delhi government's non-compliance with truck..IndiaTimes - Published | Delhi Pollution: Air quality remains 'very poor', AQI at 340, SC to decide on GRAP 4 todayOn Monday morning, Anand Vihar reported an AQI of 334, Ashok Vihar at 312, Bawana at 322, Chandni Chowk at 244 and Dwarka at 297, according to CPCB.DNA - Published |
Delhi-NCR AQI: No relief from pollution, Delhi air quality improves slightly to 'Very Poor'Several areas in the city are still in the 'Severe' category and the AQI went as high as 412.DNA - Published | Delhi-NCR Air Pollution: Delhi, Noida, Gurugram, Faridabad, Ghaziabad schools likely to stay closed till...This decision was taken after Delhi's daily average AQI rose sharply to 441 on Sunday and further escalated to 457 by 7 pm which prompted an emergency meeting of the GRAP Sub-Committee.DNA - Published |
Single-use plastic banned in Vizag amid rising pollution levelsVisakhapatnam has taken action against rising pollution levels by banning single-use plastics. Andhra Pradesh Deputy Chief Minister Pawan Kalyan is advocating for biodegradable alternatives. Despite..IndiaTimes - Published | Delhi Air Pollution: AQI marginally improves from 'severe' to 'very poor' categoryAccording to the data of the Central Pollution Control Board (CPCB), the Air Quality Index (AQI) recorded in Delhi was 379, categorised as 'very poor, as of 8 am on Thursday.DNA - Published |
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 |
Delhi Pollution: This is the BIGGEST reason behind alarmingly high AQI in Delhi, it's not stubble-burning, vehiclesEfforts to control the escalating crisis have included the enforcement of Phase 4 of the Graded Response Action Plan (GRAP), but the situation remains grim as cold weather and stagnant winds trap..DNA - Published | '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 |
