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)
12
Good
Arlington, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.29 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
11.68 μg/m³
0
55
155
255
425
605+
12.97 ppb
0
55
71
86
201
201+
0.60 ppb
0
36
76
186
605
1005+
5.30 ppb
0
54
101
361
1250
2050+
0.10 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Arlington, Washington
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AQI 14
Good
2.42μg/m³
PM2.5
9.80μg/m³
PM10
14.81ppb
O3
0.62ppb
SO2
5.75ppb
NO2
0.10ppm
CO
AQI 16
Good
2.66μg/m³
PM2.5
11.52μg/m³
PM10
12.98ppb
O3
0.62ppb
SO2
4.56ppb
NO2
0.10ppm
CO
AQI 16
Good
2.62μg/m³
PM2.5
7.95μg/m³
PM10
15.24ppb
O3
0.63ppb
SO2
5.84ppb
NO2
0.10ppm
CO
AQI 12
Good
2.02μg/m³
PM2.5
5.99μg/m³
PM10
12.54ppb
O3
0.57ppb
SO2
4.16ppb
NO2
0.10ppm
CO
AQI 14
Good
2.41μg/m³
PM2.5
10.01μg/m³
PM10
14.88ppb
O3
0.63ppb
SO2
5.62ppb
NO2
0.10ppm
CO
AQI 16
Good
3.10μg/m³
PM2.5
4.65μg/m³
PM10
16.15ppb
O3
0.64ppb
SO2
5.63ppb
NO2
0.10ppm
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 03:00:00, 2026-06-08.
The best air quality in Arlington, Washington was observed at 03:00:00 on 2026-06-08.
The air quality in Arlington, Washington right now is Good, with an AQI of 12.
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 2.287 μg/m3.
Arlington, Washington currently has a PM10 concentration of 11.677 μg/m3.
The current carbon monoxide (CO) level in Arlington, Washington is 0.1 ppm.
The current sulfur dioxide (SO2) concentration in Arlington, Washington is 0.597 ppb.
Arlington, Washington currently has an ozone (O3) concentration of 12.975 ppm.
The current level of nitrogen dioxide (NO2) in Arlington, Washington is 5.299 ppb.
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