Delhi, GRAP and air quality index

Delhi-NCR pollution: GRAP Stage IV revoked as air quality improves; what’s allowed and what’s not
During winters, the Delhi-NCR region enforces restrictions under GRAP, which categorises air quality into four stages -- Stage I (poor, AQI 201-300), Stage II (very poor, AQI 301-400), Stage III (severe, AQI 401-450), and Stage IV (severe plus, AQI above 450).
Delhi Pollution: GRAP-4 Measures Revoked As Air Quality Improves Amid Light Rains
The Commission for Air Quality Management has revoked Stage IV of the Graded Response Action Plan (GRAP) for the National Capital Region but will keep measures under Stages I, II, and III in place.
Air quality better, Grap 4 lifted in Delhi but major curbs stay
Following two days of severe pollution, Delhi's air quality improved to the very poor range at 369, prompting CAQM to revoke GRAP Stage-IV restrictions. Although construction and BS-III petrol and BS-IV diesel cars remain banned under GRAP-III,
Delhi AQI: Stage IV curbs removed as air quality improves, lower-stage measures tightened
The decision comes after Delhi's Air Quality Index (AQI) improved to 369 ('Very Poor') at 4 PM on December 24, down from a peak of 401 ('Severe') recorded on December 16.
GRAP 4 Delhi: Cleaner air in Delhi-NCR! Stage IV air quality measures lifted as AQI improves
The Central Government's air quality monitoring body has repealed Stage IV ('Severe+') Graded Response Action Plan (GRAP) measures in Delhi and the National Capital Region (NCR) due to improved air quality.
Centre's air quality panel for Delhi-NCR revokes GRAP Stage-IV curbs
According to forecasts from the India Meteorological Department and the Indian Institute of Tropical Meteorology, the air quality situation is predicted to improve further, owing to favourable meteorological conditions.
Delhi Lifts Stage IV Pollution Curbs Amid Improving Air Quality
NCR's air quality revoked Stage IV curbs under the Graded Response Action Plan amid a drop in pollution levels. The 24-hour average AQI stood at 369, and forecasts indicate further improvement. Some restrictions remain,
GRAP-4 measures revoked in Delhi as air quality improves
Restrictions under stages 1, 2 and 3 would remain in force to prevent any deterioration of air quality, the CAQM said.
GRAP-4 revoked in Delhi as AQI improves, stage-3 restrictions to continue
The decision was taken after Delhi's Air Quality Index (AQI) significantly improved to 369 (very poor) at 4 pm on Tuesday.
Amid Air Pollution Woes, Delhi Breathes Easy; Stage IV GRAP Revoked As Air Quality Improves In Capital
Stage IV measures were initially invoked after the directions issued by the Supreme Court when AQI levels breached the 400 mark on December 16. The measures were aimed at curbing severe pollution levels and included restrictions on industrial activities,
Stage IV GRAP revoked as Delhi's air quality improves; Stage I-III measures intensified
The Central government’s air quality panel has revoked Stage IV ('Severe+') measures under the Graded Response Action Plan (GRAP) in Delhi-NCR after air quality improved. However, measures under Stages I,
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Dense fog engulfs Delhi as air quality remains 'very poor'
Delhi woke up to dense fog on Wednesday morning, significantly reducing visibility. The overall Air Quality Index at 7 a.m. was recorded at 333, categorised as 'very poor', an improvement from the ...
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Fog Reduces Visibility On Christmas In Delhi; Flights Affected, Air Quality Remains 'Very Poor'
The weather department has issued a yellow alert for Wednesday and warned of dense fog in the early morning hours.
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Delhi's 'severe' air quality persists as light rain offers no relief | VIDEO
Delhi's air quality remains 'severe' despite light rain, with AQI exceeding 400 in many areas. Residents face health issues ...
Centre's air quality panel for Delhi-NCR revokes curbs under GRAP Stage IV
Delhi's air pollution levels showed a declining trend on Tuesday and the 24-hour average Air Quality Index (AQI) stood at 369 ...