The pickLink checked Oct 9
World Air Quality Index
aqicn.orgLive air quality from official stations in 100+ countries
FreeNo signup
Why it's the pick
The World Air Quality Index map shows live readings from official monitoring stations in more than 100 countries, color-coded by how healthy the air is. Free with no signup; readings are raw and may be corrected later. In the US, the EPA's AirNow adds forecasts and fire and smoke maps.
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