On Monday, the AQI in Mumbai returned to the ‘very poor’ category. Delhi on the other hand hasn’t been showing much of a change in its AQI and still remains in the ‘severe’ category.
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- 337
Shantipath- 400
R.K. Puram- 340
Shanti Niketan- 400
Dwarka- 321
HARYANA
Gurugram- 333
Faridabad- 328
Rohtak- 186
MUMBAI
Pirojshanagar- 358
MPCB Bandra- 149 (Current)
Bandra East- 149
Lower Parel- 156
*As on Monday
BENGALURU
BTM Layout- 60
BWSSB- 20
Peenya- 28
Saneguravahalli- 61 (PM10)
The pollution level figures are as per the data taken on Monday at 18:00 IST unless mentioned otherwise. The NGT has formed a committee to look for ways to combat the growing hazards for air pollution in Delhi.