Post Diwali celebrations have left the country’s capital and its AQI in a dreadful state. Friday morning saw improvement in the AQIs of Delhi NCR but it still was touching the ‘beyond hazardous’ levels. The evening only saw a slight improvement in the AQI.
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- 431
Shantipath- 300
R.K. Puram- 296
Shanti Niketan- 300
Dwarka- 435
HARYANA
Gurugram- 396
Faridabad- 448
Rohtak- 400
MUMBAI
Pirojshanagar- 126
MPCB Bandra- 184
Bandra East- 208
Lower Parel- 135
BENGALURU
BTM Layout- 96
BWSSB- 37
Peenya- 63
Saneguravahalli- 170 PM10
The pollution level figures are as per the data taken on Friday between 18:00 and 21:00 IST unless mentioned otherwise.