Delhi, central pollution control board and air quality index

Delhi’s air pollution level drops below 300-mark; SC to hear plea to curb pollution today
Delhi's AQI was 318 on Sunday evening. Supreme Court had ordered the Delhi government not to relax GRAP IV restrictions without its permission
Respite from extreme pollution as air quality limps to ‘very poor’ in Delhi
Experts said even though winds were predominantly calm on Saturday, they picked up late in the evening, with similarly strong winds recorded on Sunday.
Delhi pollution: Air quality again deteriorates to ‘severe’ category
After getting relief for two days, Delhi's air quality deteriorated again to the ‘severe’ category on Saturday, 23 November, with AQI crossing 400. According to the Central Pollution Control Board (CPCB), the average air quality index (AQI) in the national capital till 7:00 am remained at 422 points.
Delhi's air quality improves, Supreme Court order on anti-pollution curbs today
The Supreme Court is set to review on Monday whether to continue emergency measures under Stage 4 of the Graded Response Action Plan (GRAP) to address Delhi's air pollution crisis.
Delhi air pollution: ‘Severe’ or ‘very poor’ - what's AQI today? Centre announces staggered timings for staff | Updates
The Central Pollution Control Board data shows of the 38 monitoring stations in Delhi, nine reported AQI readings in the “severe” range.
Delhi Air Pollution: Respite from smog but AQI remains in 'poor' category
The AQI in Delhi remained in the severe category from Monday to Wednesday last week and thereafter witnessed slight improvement on Thursday and Friday. However, it deteriorated to the severe category on Saturday.
Delhi Air Pollution: Air quality level shows minor improvement, shift to ‘very poor’ from severe category
The air quality (AQI) was recorded to be at 362 at 8 am today (November 24) , offering minimal relief to the residents.
Situation remains grim as Delhi continues to reel under severe air pollution
According to the CPCB, the average air quality index (AQI) in the national capital till 7.30 am. was 366, which is in the 'very poor' category
Delhi pollution: GRAP IV comes into effect as AQI hits ‘severe plus’ category
On Sunday, Delhi’s daily average AQI clocked 441 at 4 pm, as per the Daily AQI Bulletin by CPCB, and further rose to 457 at 7 pm
Delhi's air quality turns ‘severe’ again; AQI at 420
The AQI in Anand Vihar was recorded as 457; the AQI in Ashok Vihar was 455; Chandni Chowk's AQI was 439 and RK Puram recorded an AQI of 421.
Delhi weather update: NCR's air quality plunges back into 'severe' category
With the overall Air Quality Index (AQI) reading 422 at 6 AM on Saturday, Delhi was once again engulfed in a dense layer of poisonous haze as the air quality fell into the "Severe" category. According to the Central Pollution Control Board (CPCB),
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