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@__agwa | |||||
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Large cloud of smoke over East Bay currently headed west. Thankfully it's trailed by clean air. pic.twitter.com/4FoU7v3LrK
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Andrew Ayer
@__agwa
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10. lip |
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The numbers are Air Quality Index (AQI). <50 is good; 101-150 is unhealthy for sensitive groups; 151-200 is unhealthy for everyone; >300 is hazardous. You really don't want to be breathing that.
The readings are from Purple Air sensors (purpleair.com)
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