
Updated as of Sun 20, 3 PM PDT
Seattle-Tacoma International Airport, Seattle, WA
Updated as of Sun 20, 3 PM PDT
111 — Poor
Primary Pollutant · PM2.5 45 μg/m³
Members of sensitive groups are at increased risk.
Limit activity if sensitive
Close windows and doors
Air purifier recommended
Masks advised if sensitive

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