The improvement graph of Delhi’s air is steadily growing aided by the winds as the AQI in the capital improved to ‘poor’ from ‘very poor’ on Wednesday.
Pollution Watch brings you the measure of Air Quality Index (AQI) in major cities across the country.
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The AQI is measured by taking into account the PM (particulate matter). The pollution of a place is measured either in PM10 or PM2.5, depending on which particle is more dominant in the air in that place.
PM10 is the particle which is 10 micrometers or less in diameter and PM2.5 is the finer particle with a diameter measuring 2.5 micrometers or less.
PM2.5 is considered more harmful since it is finer and can travel more deeply into the lungs and cause very harmful effects. These tiny particles in the air reduce visibility and cause the air to appear hazy when their levels are high.
| 0-30 | Good | |
| 31- 60 | Satisfactory | |
| 61- 90 | Moderate | |
| 91- 120 | Poor | |
| 121- 250 | Very Poor | |
| Beyond 250 | Severe |
*All levels are measured in PM2.5
DELHI
Mandir Marg- 181
Lodhi Road- 168
R.K. Puram- 188
Jahangirpuri- 267
Dwarka- 266
HARYANA
Gurugram- 188
Faridabad- 196
Rohtak- 136
MUMBAI
Pirojshanagar- 140
Powai- 72
Bandra- 60
Lower Parel- 24
Worli- 98
BENGALURU
BTM Layout- 170
BWSSB Kadabesanahalli- 250
Jayanagar- 172
Peenya- 64
The pollution level figures are as per the data taken on Wednesday between 11:00-12 noon IST unless mentioned otherwise. The NGT has formed a committee to look for ways to combat the growing hazards for air pollution in Delhi.