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)
33
Good
Arlington, Washington
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
6.12 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.88 μg/m³
0
55
155
255
425
605+
19.54 ppb
0
55
71
86
201
201+
0.27 ppb
0
36
76
186
605
1005+
6.10 ppb
0
54
101
361
1250
2050+
0.12 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Arlington, Washington
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AQI 38
Good
7.49μg/m³
PM2.5
32.40μg/m³
PM10
19.13ppb
O3
0.27ppb
SO2
4.14ppb
NO2
0.12ppm
CO
AQI 27
Good
5.02μg/m³
PM2.5
17.79μg/m³
PM10
21.52ppb
O3
0.28ppb
SO2
3.97ppb
NO2
0.12ppm
CO
AQI 38
Good
7.24μg/m³
PM2.5
24.12μg/m³
PM10
18.91ppb
O3
0.27ppb
SO2
3.85ppb
NO2
0.12ppm
CO
AQI 19
Good
3.03μg/m³
PM2.5
12.13μg/m³
PM10
21.26ppb
O3
0.27ppb
SO2
4.29ppb
NO2
0.13ppm
CO
AQI 22
Good
3.82μg/m³
PM2.5
9.27μg/m³
PM10
17.32ppb
O3
0.27ppb
SO2
4.08ppb
NO2
0.12ppm
CO
AQI 49
Good
8.96μg/m³
PM2.5
14.00μg/m³
PM10
18.76ppb
O3
0.28ppb
SO2
3.62ppb
NO2
0.12ppm
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, 2025-07-22.
The best air quality in Arlington, Washington was observed at 06:00:00 on 2025-07-22.
The air quality in Arlington, Washington right now is Good, with an AQI of 33.
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 5.719 μg/m3.
Arlington, Washington currently has a PM10 concentration of 21.137 μg/m3.
The current carbon monoxide (CO) level in Arlington, Washington is 0.122 ppm.
The current sulfur dioxide (SO2) concentration in Arlington, Washington is 0.293 ppb.
Arlington, Washington currently has an ozone (O3) concentration of 19.423 ppm.
The current level of nitrogen dioxide (NO2) in Arlington, Washington is 3.901 ppb.
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