Air Quality History for SeaTac, United States
Historical PM2.5 and AQI trend from monitoring stations near SeaTac, United States.
48
Current AQI
Good Station
Good Station
Air Quality Index Station
336hPM2.5 Station
336h · 15 stationsTemperature GFS model
56ptPrecipitation GFS model
mm/dayDaily Summary Station
| Date | AQI | Range | PM2.5 avg | PM10 avg | Hours | Stations |
|---|---|---|---|---|---|---|
| 2026-07-21 | 49 | 34–64 | 12.0 µg/m³ | 10.5 | 24h | 4 |
| 2026-07-20 | 18 | 13–35 | 4.4 µg/m³ | 3.9 | 24h | 3 |
| 2026-07-19 | 20 | 14–34 | 4.9 µg/m³ | 4.5 | 24h | 3 |
| 2026-07-18 | 20 | 11–42 | 4.7 µg/m³ | 3.8 | 24h | 3 |
| 2026-07-17 | 22 | 9–53 | 5.2 µg/m³ | 5.0 | 24h | 3 |
| 2026-07-16 | 32 | 19–54 | 7.6 µg/m³ | 7.2 | 24h | 3 |
| 2026-07-15 | 28 | 15–44 | 6.8 µg/m³ | 6.1 | 24h | 3 |
| 2026-07-14 | 12 | 5–25 | 2.8 µg/m³ | 2.4 | 24h | 3 |
| 2026-07-13 | 8 | 3–13 | 1.9 µg/m³ | 1.8 | 24h | 3 |
| 2026-07-12 | 5 | 3–8 | 1.2 µg/m³ | 0.3 | 24h | 2 |
| 2026-07-11 | 7 | 2–12 | 1.7 µg/m³ | 1.6 | 24h | 3 |
| 2026-07-10 | 10 | 4–16 | 2.4 µg/m³ | 2.3 | 24h | 3 |
| 2026-07-09 | 16 | 8–26 | 3.8 µg/m³ | 3.5 | 24h | 3 |
| 2026-07-08 | 11 | 8–25 | 2.8 µg/m³ | 0.8 | 24h | 4 |