PM2.5 (particles of diameter 2.5 micrometres or less) concentration for 24 hours ending 4pm on November 18 was 549.6 microgram per cubic metre (µg/m3) and 676 µg/m3 at Jawaharlal Nehru Stadium ...

charts can help you determine if you can safely workout, while outside. The AQI scale ranges from 0 to 500 and includes different tiers associated with various health risks for different groups of ...

Though each pollutant has a different standard and is found in the air at different levels, the EPA standardizes the AQI so that a particular range of numbers means the same for each pollutant. [1] [2 ...

The AQI tells us if the air is polluted. It gives us information about how recent levels measured in the air relate to health problems. The bigger the number, the more pollution in the air and the ...