Delhi woke up to a a foggy morning on Friday, while the AQI showed slight improvement in the day. Meanwhile, Gurugram showed worse air quality as compared to the past week’s trend.
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- 393
Shantipath- 400 (Last week)
R.K. Puram- 399
Shanti Niketan- 400 (Last week)
Dwarka- 394
HARYANA
Gurugram- 334
Faridabad- 370
Rohtak- 176
MUMBAI
Pirojshanagar- 78
MPCB Bandra- 131 (Current)
Bandra East- 153
Lower Parel- 105
*Last week
BENGALURU
BTM Layout- 181
BWSSB- 86
Peenya- 83
Saneguravahalli- 55 PM10
The pollution level figures are as per the data taken on Friday at 16:00 IST unless mentioned otherwise. The NGT has formed a committee to look for ways to combat the growing hazards for air pollution in Delhi.