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)
27
Good
Arlington, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.80 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
16.96 μg/m³
0
55
155
255
425
605+
14.79 ppb
0
55
71
86
201
201+
0.21 ppb
0
36
76
186
605
1005+
7.28 ppb
0
54
101
361
1250
2050+
0.31 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Arlington, Washington
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AQI 13
Good
1.82μg/m³
PM2.5
8.12μg/m³
PM10
14.46ppb
O3
0.20ppb
SO2
4.08ppb
NO2
0.23ppm
CO
AQI 22
Good
3.69μg/m³
PM2.5
24.21μg/m³
PM10
13.35ppb
O3
0.20ppb
SO2
8.06ppb
NO2
0.23ppm
CO
AQI 11
Good
1.94μg/m³
PM2.5
8.65μg/m³
PM10
12.01ppb
O3
0.19ppb
SO2
4.87ppb
NO2
0.23ppm
CO
AQI 11
Good
1.63μg/m³
PM2.5
7.12μg/m³
PM10
7.04ppb
O3
0.18ppb
SO2
6.30ppb
NO2
0.22ppm
CO
AQI 38
Good
6.92μg/m³
PM2.5
24.72μg/m³
PM10
9.68ppb
O3
0.18ppb
SO2
3.54ppb
NO2
0.21ppm
CO
AQI 7
Good
1.04μg/m³
PM2.5
4.61μg/m³
PM10
8.43ppb
O3
0.19ppb
SO2
5.40ppb
NO2
0.23ppm
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 01:00:00, 2025-12-13.
The best air quality in Arlington, Washington was observed at 01:00:00 on 2025-12-13.
The air quality in Arlington, Washington right now is Good, with an AQI of 22.
In Arlington, Washington, PM2.5 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 3.76 μg/m3.
Arlington, Washington currently has a PM10 concentration of 17.066 μg/m3.
The current carbon monoxide (CO) level in Arlington, Washington is 0.225 ppm.
The current sulfur dioxide (SO2) concentration in Arlington, Washington is 0.194 ppb.
Arlington, Washington currently has an ozone (O3) concentration of 16.316 ppm.
The current level of nitrogen dioxide (NO2) in Arlington, Washington is 8.291 ppb.
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