City AQI Comparison
New York City vs Seattle: AQI comparison and planning guide
Compare New York City and Seattle by current-or-fallback AQI, cigarette-equivalent exposure, and practical next steps.
Uses live AirNow readings where supported and falls back to each city's planning baseline when the API is unavailable or unsupported.
New York City
Northeast Corridor
Current or fallback AQI
AQI 51
Category
Moderate
24-hour equivalent
0.55
Updated Jul 10, 7:29 PM UTC
Shift hard workouts to cleaner hours or indoor spaces.
Limit unnecessary exposure for children and sensitive groups.
Keep a mask and indoor-air plan ready if readings continue rising.
Seattle
Pacific Northwest
Current or fallback AQI
AQI 32
Category
Good
24-hour equivalent
0.35
Updated Jul 10, 7:29 PM UTC
Proceed with normal outdoor activity.
Use the day to ventilate and prepare before worse conditions arrive.
Check tomorrow's forecast if wildfire smoke or inversion is developing.
What changes for planning
Cleaner right now
Seattle
Heavier 24h exposure
New York City
Daily cigarette-equivalent gap
0.2
New York City: Forecast planning snapshot
2026-07-10
AQI 60
Moderate
2026-07-11
AQI 60
Moderate
Seattle: Forecast planning snapshot
2026-07-10
AQI 33
Good
2026-07-11
AQI 33
Good