Air quality alerts use color-coded categories to show when pollution levels may be unhealthy. Code Orange is unhealthy for sensitive groups, while Code Red is unhealthy for everyone. Code Purple means ...
D.C. issued the "Code Red" air quality alert on Sunday morning, hours after the record-setting fireworks display on the ...
Pittsburgh was under a Code Red air quality alert on Thursday, July 16 due to wildfire smoke. The smoke originated from wildfires burning in Canada and Minnesota. A Code Red alert indicates unhealthy ...
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