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Is the Air Quality Index enough? What the AQI can — and can't — tell you about how healthy the atmosphere is.
An AQI value of 50 or below represents good air quality ... Here is the Air Quality Index chart from the Centers for Disease Control and Prevention: Lung-Wen Antony Chen, an associate professor ...
Understanding AQI, and if it precisely depicts worst days
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 ...