The air quality in Delhi worsened to ‘severe’ on Wednesday while Gurugram plunged to ‘very poor’ category.
Pollution Watch brings you the measure of Air Quality Index (AQI) in major cities across the country.
ALSO READ: Delhi AQI remains ‘very poor’, likely to improve marginally on Wednesday: SAFAR
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- 409
Shantipath- 462
R.K. Puram- 361
Jahangirpuri- 436
Dwarka- 414
HARYANA
Gurugram- 340
Faridabad- 404
Rohtak- 340
MUMBAI
Pirojshanagar- 19
Powai- 73
Bandra East- 74
Lower Parel- 28
Worli- 103
BENGALURU
BTM Layout- 30
BWSSB Kadabesanahalli- 76
Jayanagar- 68
Peenya- 36
The pollution level figures are as per the data taken on Wednesday between 12:00-17:00 IST unless mentioned otherwise. The NGT has formed a committee to look for ways to combat the growing hazards for air pollution in Delhi