Light showers in Delhi NCR on Wednesday morning helped the AQI improve to the ‘moderate’ from the ‘poor’ category on Tuesday.
Meanwhile, the AQI of many places in Mumbai showed deterioration to ‘very poor’ and ‘severe’ category.
Pollution Watch brings you the measure of Air Quality Index (AQI) in major cities across the country.
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- 146
Rohini- 190
RK Puram- 112
ITO- 141
Dwarka- 144
HARYANA
Gurugram- 100
Faridabad- 132
Rohtak- 109
MUMBAI
Lower Parel- 131
Colaba- 191
Bandra East- 306
Pirojshanagar- 206
Worli- 172
BENGALURU
BTM Layout- 18
Jayanagar- 66
Silk Board- 44
Peenya- 20
The pollution level figures are as per the data taken on Wednesday between 10:00 – 11:00 noon IST unless mentioned otherwise. The NGT has formed a committee to look for ways to combat the growing hazards for air pollution in Delhi.