The Air Quality Index is used nationwide to measure the severity of air pollution and categorize the health risks that are involved with various ... 151 to 200 ; Very unhealthy (purple): 201 to ...

Dust pollution in Delhi surged overnight, pushing AQI above 200 into the 'poor' category, with visibility dropping sharply due to strong, dust-laden winds.

Air Quality Index Explained: As NCR struggles against worsening AQI, learn what 200, 300, 400, 450+ readings mean for your lungs Understanding AQI values helps individuals, especially those with ...

The EPA's Air Quality Index can tell you whether breathing outside air can hurt you. How to read the scale. ... (151-200) Purple indicates very unhealthy air (151-200) ...

As of 8 a.m., multiple air quality sensors are reporting readings in the “Unhealthy for Sensitive Groups” (AQI 101–150) to “Unhealthy” (AQI 151–200) range.

Delhiites beathed it better on December 4, with the AQI falling below 200 for the first time in 50 days, according to data released by the Central Pollution Control Board. The national capital’s ...

Mumbai’s AQI also improved to 112 from 125, Kolkata’s was at 167. An AQI between 0 and 50 is considered good, 51 and 100 satisfactory, 101 and 200 moderate, 201 and 300 poor, 301 and 400 very ...