The blanket of fog thickened on Monday in the capital and the AQI remained ‘severe’, while the air quality in Gurugram showed quite some improvement.
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- 322
Shantipath- 300
R.K. Puram- 342
Shanti Niketan- 300
Dwarka- 312
HARYANA
Gurugram- 230
Faridabad- 334
Rohtak- 80
MUMBAI
Pirojshanagar- 125
MPCB Bandra- 109
Bandra East- 257
Lower Parel- 186
BENGALURU
BTM Layout- 154
BWSSB- 67
Peenya- 103
Saneguravahalli- 101 PM10
The pollution level figures are as per the data taken on Friday between 09:00 and 10:00 IST unless mentioned otherwise. The NGT has formed a committee to look for ways to combat the growing hazards for air pollution in Delhi.