Union Gap-4th St Air Quality

Monitoring Station · Yakima, United States
65
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
72 5pm
72
68
65 8pm
68
68
68 11pm
68
77
77 2am
97
97
97 5am
97
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— 8am
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— 11am
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— 2pm
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Station readings
72
72
65
CAMS model adj +43
27
25
25
25
25
25
25
25
34
34
54
54
54
54

Air Quality Forecast (24h)

PM2.518.6 µg/m³ ×1.2 WHO
Moderate
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Nearby Monitoring Stations

40
4th Ave, Yakima, Washington, USA
5.0 km PM2.5: 9.6 µg/m³
55
4th Ave, Yakima, Washington, USA
5.0 km PM2.5: 14.0 µg/m³
52
4th Ave, Yakima, Washington, USA
5.0 km PM2.5: 12.6 µg/m³
117
4th Ave, Yakima, Washington, USA
5.0 km PM2.5: 42.0 µg/m³
70
Moxee-E Seattle Ave
7.5 km PM2.5: 21.1 µg/m³
26
Yakama Tribe, Toppenish, Washington, USA
22.6 km PM2.5: 6.2 µg/m³
23
Yakama Tribe, Toppenish, Washington, USA
22.6 km PM2.5: 5.5 µg/m³

Nearby Cities

70 Yakima 74 Sunnyside 67 Ellensburg 96 Richland 123 Wenatchee 90 Tri-Cities 101 Kennewick 121 Pasco 147 Moses Lake

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-07-21T20:30 UTC.