Stay updated with real-time air quality in Arlington, Washington featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
22
Good
Arlington, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.29 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
11.01 μg/m³
0
55
155
255
425
605+
24.08 ppb
0
55
71
86
201
201+
0.37 ppb
0
36
76
186
605
1005+
6.29 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Arlington, Washington
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AQI 38
Good
7.14μg/m³
PM2.5
31.25μg/m³
PM10
15.35ppb
O3
0.39ppb
SO2
3.61ppb
NO2
0.14ppm
CO
AQI 49
Good
8.70μg/m³
PM2.5
39.02μg/m³
PM10
15.74ppb
O3
0.40ppb
SO2
4.21ppb
NO2
0.14ppm
CO
AQI 27
Good
4.91μg/m³
PM2.5
22.03μg/m³
PM10
16.28ppb
O3
0.40ppb
SO2
3.84ppb
NO2
0.14ppm
CO
AQI 21
Good
3.10μg/m³
PM2.5
14.00μg/m³
PM10
23.47ppb
O3
0.23ppb
SO2
3.65ppb
NO2
0.16ppm
CO
AQI 22
Good
4.20μg/m³
PM2.5
16.40μg/m³
PM10
19.92ppb
O3
0.37ppb
SO2
3.73ppb
NO2
0.15ppm
CO
AQI 17
Good
1.82μg/m³
PM2.5
9.46μg/m³
PM10
18.01ppb
O3
0.40ppb
SO2
3.95ppb
NO2
0.13ppm
CO
The air quality data for Washington, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Arlington, Washington are available every hour.
Arlington, Washington experienced its worst air quality at 07:00:00, 2026-09-06.
The best air quality in Arlington, Washington was observed at 03:00:00 on 2026-09-06.
The air quality in Arlington, Washington right now is Good, with an AQI of 22.
In Arlington, Washington, O3 is the most frequently found pollutant.
When air quality in Arlington, Washington is compromised, staying indoors and wearing a mask can reduce health risks.
Arlington, Washington currently has a PM2.5 concentration of 3.289 μg/m3.
Arlington, Washington currently has a PM10 concentration of 11.011 μg/m3.
The current carbon monoxide (CO) level in Arlington, Washington is 0.175 ppm.
The current sulfur dioxide (SO2) concentration in Arlington, Washington is 0.369 ppb.
Arlington, Washington currently has an ozone (O3) concentration of 24.078 ppm.
The current level of nitrogen dioxide (NO2) in Arlington, Washington is 6.295 ppb.
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