The air quality has once again bounced back to the ‘very poor’ after improving due to light showers and heavy winds for a short period.
Pollution Watch brings you the measure of Air Quality Index (AQI) in major cities across the country.
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- 411
Rohini- 459
RK Puram- 392
ITO- 421
Dwarka- 425
HARYANA
Gurugram- 360
Hisar- 320
Rohtak- 329
MUMBAI
Lower Parel- 152
Colaba- 224
Powai- 174
Pirojshanagar- 215
Worli- 204
BENGALURU
BTM Layout- 66
Jayanagar- 133
Silk Board- 88
Peenya- 100
The pollution level figures are as per the data taken on Friday between 11:00 – 12:00 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.