After showing slight improvement, the air quality in Delhi has worsened to ‘severe’, while Gurugram air quality turns ‘very poor’.
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- 331
Shantipath- 270 PM10
R.K. Puram- 370
Shanti Niketan- 270 PM10
Dwarka- 227
HARYANA
Gurugram- 290
Faridabad- 294
Rohtak- 274 PM10
MUMBAI
Pirojshanagar- 175
MPCB Bandra- 227
Bandra East- 240
Lower Parel- 112
BENGALURU
BTM Layout- 104
BWSSB- 162 PM10
Peenya- 54
Saneguravahalli- 40 PM10
The pollution level figures are as per the data taken on Tuesday at 11:00 IST unless mentioned otherwise. The NGT has formed a committee to look for ways to combat the growing hazards for air pollution in Delhi.