Page 8 - Air Quality

Delhi AQI dips to 132, remains moderate; air quality in NCR improves

In neighbouring cities, Gurugram recorded an AQI of 114, while Noida and Greater Noida reported AQIs of 90 and 60, respectively

Delhi's air quality remains 'poor' for second day amid rainfall forecasts

Air quality across Delhi-NCR deteriorated, and remained in the 'poor' or 'moderate' range

CAQM revokes Grap-2 curbs in Delhi-NCR as pollution levels improve

The Centre's panel on Delhi-NCR's air quality on Monday revoked the Stage 2 curbs under the Graded Response Action Plan (GRAP) following a dip in pollution levels due to favourable meteorological conditions. Delhi's 24-hour average air quality index stood at 186 at 4 pm, significantly below the 300-mark that triggers Stage 2 restrictions. The India Meteorological Department and Indian Institute of Tropical Meteorology predict that the AQI will likely remain in the moderate to poor category. The Commission for Air Quality Management in NCR and adjoining areas attributes the improved air quality to better mixing height, ventilation coefficient, and "much favourable conditions for dispersion of pollutants". With the revocation of Stage 2 curbs, inter-state buses from NCR states are now permitted to enter Delhi. During winters, the Delhi-NCR region enforces restrictions under GRAP, which categorizes air quality into four stages Stage I (Poor, AQI 201-300), Stage II (Very Poor, AQI ..

Delhi air quality improves, remains moderate; Noida sees satisfactory AQI

According to the city's 24-hour average at 4 pm, the AQI in Gurugram also remained in the 'moderate' category at 129, whereas, in Ghaziabad, and Noida, it improved significantly

Delhi air remains 'moderate' after rainfall; will it turn 'poor' again?

Air quality across the National Capital Region (NCR) remained in the 'moderate' category, indicating a positive shift compared to previous days

Light rain improves Delhi's air quality, AQI remains in 'moderate' category

The Air Quality Early Warning System for Delhi predicts 'moderate' air quality from 20-21 February, with AQI levels expected to range from 'poor' to 'moderate' over the next six days

Delhi's air quality improves to 'moderate' category, AQI drops to 183

Unfavourable weather, including a partly cloudy sky and low wind speed, has worsened air quality in Delhi

Air pollution may be higher inside your home than outdoors: Study

The team note that factors such as household location, ventilation, and occupancy patterns influenced particle levels - demonstrating the complexity of indoor air quality

Delhi AQI improves slightly but remains in 'poor' category; relief soon?

According to the city's 24-hour average, the AQI in Gurugram was recorded in the 'poor' category at 228, while in Ghaziabad and Noida, it was in the 'moderate' category at 129 and 111, respectively

Delhi's air quality still 'moderate' as strong winds clear away pollutants

The 24-hour average AQI in Delhi stood at 131 on February 14, slightly better than 134 the day before - making it the best February air since 2022

Delhi's AQI stays 'moderate' for 4th day; Ghaziabad sees satisfactory air

The AQI in the neighbouring regions of Delhi has also improved significantly

Grap stage-III curbs revoked as air quality improves in Delhi-NCR region

The CAQM's decision comes as the AQI in Delhi was recorded at 286 on February 3, 2025, which is 64 points below the 350 mark required to implement Stage-III measures

Delhi's AQI hits 308, remains 'very poor'; Grap-III restrictions in place

The neighbouring regions of Delhi also witnessed a decline in air quality. While Gurugram reported 'poor' air quality at 228, Noida and Ghaziabad recorded 'moderate' AQI at 183 and 193, respectively

Delhi air quality 'very poor' as city grapples extreme weather conditions

IMD has issued a yellow alert for moderate to dense fog which is expected to disrupt flight, train operations

Delhi's air quality remains 'very poor'; rain expected in early February

To combat rising pollution, the Commission for Air Quality Management (CAQM) reimposed Stage 3 of the Graded Response Action Plan (GRAP) in the national capital

Delhi's air quality remains in 'poor' category, AQI stands at 267

The AQI is expected to remain in the 'poor' to 'very poor' categories in the coming days

Centre's air quality panel revokes Grap-4 curbs as pollution levels dip

The Centre's panel on Delhi-NCR's air quality on Thursday revoked curbs under stage 4 of the Graded Response Action Plan (GRAP) amid dip in pollution levels, according to an official order. The curbs were imposed Wednesday as calm winds, low temperatures and foggy conditions allowed accumulation of pollutants in the region, with the air quality index clocking 396 last evening. Stage 4 curbs include a ban on all construction activities, entry of non-essential polluting trucks into Delhi, and mandatory shifting of school classes, except for classes 10 and 12, to hybrid mode. Non-essential diesel trucks are prohibited from entering Delhi, while Delhi-registered BS-IV and older diesel-run heavy goods vehicles are banned, except for essential services under Stage 4. During winters, the Delhi-NCR region enforces restrictions under GRAP, which categorizes air quality into four stages Stage 1 (Poor, AQI 201-300), Stage 2 (Very Poor, AQI 301-400), Stage 3 (Severe, AQI 401-450), and Stage 4

CAQM revokes stage-III Grap measures as Delhi's air quality improves

Despite the easing of Stage-III restrictions, authorities have urged citizens to adhere to GRAP-II guidelines, particularly as weather conditions during winter can exacerbate pollution levels

AQI in Delhi improves but remains 'very poor'; Grap-III measures reinstated

The neighbouring areas of Delhi, including Gurugram, Noida, and Ghaziabad, reported 'poor' air quality with AQIs ranging between 201 and 222

Delhi AQI remains in 'very poor' category as mercury dips under 10 degrees

Delhi's air quality remains 'very poor' for the eighth day while cold wave grips the national capital with the temperature falling to 5 degrees Celsius in early morning on Thursday