Page 33 - Air Quality Index

Delhi's overall AQI worsens due to dense fog, Stage III of GRAP re-imposed

Index spikes unexpectedly to touched 400, inadequate sunlight, dip in temperature hasten deterioration

CAQM rolls back Stage-III of GRAP as pollution levels in Delhi improve

Decision was taken after observing declining trend in the overall Air Quality Index (AQI) of Delhi and also considering the meteorological/ weather forecasts by India Meteorological Department (IMD)

Delhi's air quality in 'very poor' category as AQI reaches 353: SAFAR

According to the System of Air Quality and Weather Forecasting and Research (SAFAR), the AQI in the National Capital Region of Gurugram stood at 371, with Noida also registering the same figure

Delhi's air quality in 'very poor' category in New Year as AQI reaches 301

The air quality in the national capital is in the 'very poor' category on Monday with the Air Quality Index reaching 301.

New Haryana rules on stone crusher units may blunt the war on air pollution

Easing of proximity norms will not only impact air and water quality but could also turn vast tracts of farm land barred, say experts

Air in North India turns 'poor' again as rains play truant, winds go slow

Plunge in AQI attributed to 'winter inversion', where cooler air is trapped under a warmer layer, creating an atmospheric blanket that traps pollutants closer to the Earth's surface

Delhi records AQI in very poor category, min temp of 6.2 degrees Celsius

Delhi's air quality was recorded in the "very poor" category on Sunday and the minimum temperature settled at 6.2 degrees Celsius, two notches below the season's average. The relative humidity oscillated between 87 per cent and 63 per cent, the meteorological department said. Meanwhile, the maximum temperature was recorded at 23.7 degree Celsius, one notch above the season's average, the IMD said. According to the Central Pollution Control Board (CPCB), the 24-hour Air Quality Index (AQI) of the national capital stood at 353 at 4 pm. An AQI between zero and 50 is considered "good", 51 and 100 "satisfactory", 101 and 200 "moderate", 201 and 300 "poor", 301 and 400 "very poor" and 401 and 500 "severe". The weather department has predicted moderate fog for Monday. The minimum and maximum temperatures are likely to settle at around six and 24 degrees Celsius, respectively.

Delhi's air quality 'very poor', minimum temperature settles at 6.2 deg C

Delhi's air quality was recorded in the "very poor" category on Sunday morning and the minimum temperature in the city settled at 6.2 degrees Celsius, two notches below the season's average. The relative humidity was 87 per cent at 8.30 am, the meteorological department said. According to the Central Pollution Control Board (CPCB), the Air Quality Index (AQI) of the national capital stood at 315 at 9 am. An AQI between zero and 50 is considered "good", 51 and 100 "satisfactory", 101 and 200 "moderate", 201 and 300 "poor", 301 and 400 "very poor", and 401 and 500 "severe". The weatherman has forecast a largely clear sky during the day. The maximum temperature is likely to settle at around 24 degrees Celsius.

Gusting winds help bring down Delhi's AQI to 177, best quality since Oct 15

Winds gusting up to 16 kilometres per hour gave Delhi its best air quality since October 15 on Tuesday. The 24-hour average air quality index (AQI) of the city stood at 177, improving from 218 on Monday. The AQI was 186 on October 15. This is also the first time since December 14, 2020 that the capital recorded a "moderate" air quality day in December. An AQI between 201 and 300 is considered "poor", 301 and 400 "very poor", and 401 and 500 "severe". Meanwhile, the Delhi Pollution Control Committee has directed agencies to strictly implement curbs under stage 3 (AQI severe) and stage 4 (severe plus) of the Graded Response Action Plan whenever ordered by the Commission for Air Quality Management. The CAQM had on December 3 directed authorities in Delhi-NCR to implement curbs under the stage 3 of the Graded Response Action Plan, including a ban on the non-essential construction work with the air pollution in the city spiralling to severe levels. The restrictions were revoked on Dec

Bihar accounts for 6 out of 10 Indian cities with worst air pollution

While the temperature is dipping across most of the country, the Air Quality Index (AQI) continues to remain above severe in most of the cities

Air quality in Delhi remains in 'very poor' category with AQI at 301

As the mercury dropped in the national capital the smog levels increased

'Very poor' air quality in Delhi; minimum temp settles at 8.8 degrees C

The minimum temperature in Delhi settled at 8.8 degrees Celsius, while air quality was recorded in the "very poor" category. The air quality index was measured at 329, according to the Central Pollution Control Board. An AQI between zero and 50 is considered "good", 51 and 100 "satisfactory", 101 and 200 "moderate", 201 and 300 "poor", 301 and 400 "very poor", and 401 and 500 "severe". The maximum temperature in the city is expected to hover around 27 degrees Celsius, according to the India Meteorological Department. The Relative Humidity recorded at 8.30 am was 88 per cent. The weatherman has predicted mainly clear skies throughout the day. On Saturday, the maximum temperature in the national capital settled at 27.6 degrees Celsius, three notches above the normal. The minimum temperature settled at 8.3 degrees Celsius, a notch below the average temperature.

Delhi's air quality slips back to 'very poor' category with AQI at 337

Air Quality Index (AQI) was recorded on Tuesday at 337 by the System of Air Quality and Weather Forecasting And Research (SAFAR)

Delhi govt bans plying of BS-III petrol, BS-IV diesel four-wheelers

The Delhi government on Monday imposed a ban on plying of BS-III petrol and BS-IV diesel four-wheelers in the city till December 9, in view of restrictions clamped by the Centre's air quality panel under stage III of the Graded Response Action Plan (GRAP). The sub-committee for implementation of GRAP held a meeting on Sunday to review the air quality scenario in the region as well as the forecasts for meteorological conditions and the air quality index of Delhi as air pollution turned severe. "As per the directions as provided under Stage III of the revised GRAP and under section 115 of the Motor Vehicle Act, 1988, it is hereby ordered that there shall be restrictions to ply BS-III petrol and BS-IV diesel LMVs (four-wheelers) in NCT of Delhi with immediate effect till December 9 or till downward revision in GRAP stage, whichever is earlier," read an order issued by the transport department. Vehicles deployed in emergency services and government or election work are exempt. "If any

Delhi's air quality shows marginal improvement, AQI stands at 363

A day after entering the "severe" category, Delhi's air quality showed a marginal improvement as it came under the "very poor category" on Monday morning. Delhi's air quality index (AQI) read 363 at 8.10 am. An AQI between 201 and 300 is considered ''poor'', 301 and 400 ''very poor'', and 401 and 500 ''severe''. As pollution levels in the national capital shot up on Sunday, the Centre's air quality panel directed authorities in the Delhi-NCR to ban non-essential construction work in the region under stage III of the Graded Response Action Plan (GRAP). Delhi's 24-hour average AQI stood at 407 at 4 pm on Sunday. The city air quality was last classified in the "severe" category on November 4, when the AQI was 447. The minimum temperature on Monday was 7.6 degrees Celsius, a notch below the season's average. The relative humidity at 8.30 am was 95 per cent. The weather office has forecast mainly clear skies for the day with the maximum temperature likely to settle at 26 degrees Celsi

Beijing is tackling its air pollution problem; Why can't New Delhi?

The return of smog season in India's capital has again left residents asking why nothing has changed; the answer may be largely political

Delhi air quality improves to 'poor' category with overall AQI at 286

As per the SAFAR data, the air quality in Noida was recorded in the 'Very poor' category with 312 AQI while the AQI was reported in the 'Poor' category at 266 in Gurugram.

Delhi's air quality remains 'poor'; min temp recorded at 9.6 deg Celsius

Air quality in the national capital continued to be in the 'poor' category on Sunday as the air quality index stood at 296, according to the Central Pollution Control Board. An AQI (air quality index) between zero and 50 is considered 'good', 51 and 100 'satisfactory', 101 and 200 'moderate', 201 and 300 'poor', 301 and 400 'very poor', and 401 and 500 'severe'. Meanwhile, Delhiites woke up to a pleasant morning with the minimum temperature settling at 9. 6 degrees Celsius, three notches below normal, the India Meteorological Department said. Relative humidity in the city was recorded at 79 per cent and the weatherman has predicted mainly clear skies throughout the day. On Saturday, the national capital had recorded its coldest morning of the season with a minimum temperature of 9 degrees Celsius, three notches below normal.

Delhi pollution: Air quality in 'very poor' category on Saturday morning

The Air Quality Index in Noida and Gurugram this morning is 321 and 283, respectively, SAFAR data showed.

Delhi's air quality remains in 'poor' category, overall AQI at 283

The air quality in the Delhi-NCR region continued to remain in the 'poor' category with the overall AQI at 283, as per the System of Air Quality and Weather Forecasting And Research (SAFAR)