Union Gap-4th St Air Quality

Monitoring Station · Yakima, United States
14
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
12 1pm
17
17
14 4pm
30
30
10 7pm
3
3
1 10pm
1
1
3 1am
3
3
— 4am
—
—
— 7am
—
—
— 10am
—
—
Station readings
12
17
17
14
CAMS model adj -24
34
34
54
54
54
54
34
27
27
25
25
25
27
27
27

Air Quality Forecast (24h)

PM2.53.3 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

18
Moxee-E Seattle Ave
7.5 km PM2.5: 4.3 µg/m³
34
Yakama Tribe, Toppenish, Washington, USA
22.6 km PM2.5: 8.2 µg/m³

Nearby Cities

17 Yakima 25 Sunnyside 42 Ellensburg 20 Richland 36 Wenatchee 21 Tri-Cities 22 Kennewick 28 Pasco 17 Moses Lake

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-09-05T16:31 UTC.