 "image")
What is Air Quality Index (AQI)
- Comparing air quality conditions at different locations/cities.
- It also helps in identifying faulty standards and inadequate monitoring programmes.
- AQI helps in analysing the change in air quality (improvement or degradation).
- AQI informs the public about environmental conditions. It is especially useful for people suffering from illnesses aggravated or caused by air pollution.
Latest Updates on Air Quality Index
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
An intense cold wave swept through Delhi early Wednesday, causing a sharp drop in temperatures and bringing chilly winds
Anumita Roychowdhury, executive director, research and advocacy, CSE, said the rise in PM2.5 levels cannot be seen as an annual aberration due to meteorological factors
The CAQM had on Friday invoked Stage-III curbs under the GRAP across the Delhi-NCR region amid another surge in air pollution levels. Earlier, GRAP Stage-III was lifted on December 27
The AQI levels fell into the "severe" category in areas like RK Puram (401), Siri Fort (426), Patparganj (410), and Dwarka Sector-8 (405), among others
Last week, the BMC ordered that all construction work, being carried out by private as well as government agencies, be stopped in Byculla and Borivali after AQI levels there remained above 200
Earlier in the week, on Monday, the capital saw a temporary improvement in air quality, with levels shifting to the "moderate" category after heavy rainfall over the weekend
Intermittent showers over the past few days have helped reduce pollution levels in the national capital
The tribunal noted that the report also mentioned specific interventions for the sectors of transport, power plants and industries, besides the measures for preventing biomass burning
On Friday, the restrictions under the Graded Response Action Plan (Grap) III were revoked in Delhi-NCR after the air quality improved following a day of continuous showers
Classes up to grade 5 are required to shift to hybrid mode under Stage 3. Parents and students have the option to choose online education wherever available
Delhi's Air Quality Index remained in the 'very poor' category at 371, according to data from the Central Pollution Control Board
In the National Capital Region (NCR), cold wave and fog conditions persisted, with the minimum temperature dropping to 8.4 degrees Celsius
The stringent measures under the stage-IV of the Grap in Delhi were lifted on Tuesday, following an improvement in the AQI
Stage IV curbs under the Graded Response Action Plan (GRAP) ?include a ban on all construction activities, entry of non-essential polluting trucks into Delhi, and mandatory shifting of school classes
AQI hits 401 despite light rainfall; cold wave grips north India with plummeting temperatures and snowfall disruptions
While the first half of December saw six 'moderate' air quality days, November remained highly polluted
While the air remains hazardous in the national capital, it shows slight improvement compared to Saturday, when many areas of the city reported an alarming AQI of 434
According to the Graded Response Action Plan (GRAP), the capital's air quality currently falls under Stage III (Severe), which is characterised by AQI values between 401 and 450
Despite the enforcement of Stage-IV measures under the Graded Response Action Plan (Grap), pollution levels show little respite