Stay updated with real-time air quality in Mount Vernon, 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)
34
Good
Mount Vernon, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.92 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.11 μg/m³
0
55
155
255
425
605+
37.35 ppb
0
55
71
86
201
201+
0.16 ppb
0
36
76
186
605
1005+
7.45 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Mount Vernon, Washington
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AQI 36
Good
2.25μg/m³
PM2.5
9.90μg/m³
PM10
38.95ppb
O3
0.16ppb
SO2
4.72ppb
NO2
0.15ppm
CO
AQI 36
Good
2.65μg/m³
PM2.5
11.66μg/m³
PM10
38.57ppb
O3
0.16ppb
SO2
4.49ppb
NO2
0.15ppm
CO
AQI 37
Good
5.91μg/m³
PM2.5
26.14μg/m³
PM10
40.30ppb
O3
0.16ppb
SO2
4.79ppb
NO2
0.14ppm
CO
AQI 33
Good
3.65μg/m³
PM2.5
12.46μg/m³
PM10
35.69ppb
O3
0.16ppb
SO2
5.24ppb
NO2
0.14ppm
CO
AQI 34
Good
5.73μg/m³
PM2.5
21.97μg/m³
PM10
37.34ppb
O3
0.16ppb
SO2
3.97ppb
NO2
0.17ppm
CO
AQI 37
Good
5.19μg/m³
PM2.5
21.67μg/m³
PM10
39.85ppb
O3
0.16ppb
SO2
3.86ppb
NO2
0.15ppm
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 Mount Vernon, Washington are available every hour.
Mount Vernon, Washington experienced its worst air quality at 04:00:00, 2026-03-05.
The best air quality in Mount Vernon, Washington was observed at 02:00:00 on 2026-03-05.
The air quality in Mount Vernon, Washington right now is Good, with an AQI of 34.
In Mount Vernon, Washington, O3 is the most frequently found pollutant.
When air quality in Mount Vernon, Washington is compromised, staying indoors and wearing a mask can reduce health risks.
Mount Vernon, Washington currently has a PM2.5 concentration of 1.924 μg/m3.
Mount Vernon, Washington currently has a PM10 concentration of 8.112 μg/m3.
The current carbon monoxide (CO) level in Mount Vernon, Washington is 0.2 ppm.
The current sulfur dioxide (SO2) concentration in Mount Vernon, Washington is 0.159 ppb.
Mount Vernon, Washington currently has an ozone (O3) concentration of 37.346 ppm.
The current level of nitrogen dioxide (NO2) in Mount Vernon, Washington is 7.449 ppb.
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