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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 ...
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Does a ‘good’ Air Quality Index rating mean it’s safe to be outdoors?
The Air Quality Index, or AQI, is the primary system used to warn the public when air pollution is dangerous. It’s based on ...