Delhi’s air quality on Friday dipped to ‘very poor’. Gurugram continued to remain in the same category from Thursday.
Pollution Watch brings you the measure of Air Quality Index (AQI) in major cities across the country.
ALSO READ: North India witnesses heavy rain and thundershowers with isolated hailstorm activity
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- 237
Shantipath- 162
R.K. Puram- 236 PM10
Shanti Niketan- 162
Dwarka- 165
HARYANA
Gurugram- 265
Faridabad- 117
Rohtak- 226
MUMBAI
Pirojshanagar- 42
MPCB Bandra- 20
Bandra East- 54
Lower Parel- 42
BENGALURU
BTM Layout- 43
BWSSB Kadabesanahalli- 55
Peenya- 25 NO2
Sanegurava Halli- 46 PM10
The pollution level figures are as per the data taken on Friday at 12:00 IST unless mentioned otherwise. The NGT has formed a committee to look for ways to combat the growing hazards for air pollution in Delhi