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)
16
Good
Mount Vernon, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.64 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
6.79 μg/m³
0
55
155
255
425
605+
16.60 ppb
0
55
71
86
201
201+
0.37 ppb
0
36
76
186
605
1005+
4.25 ppb
0
54
101
361
1250
2050+
0.12 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Mount Vernon, Washington
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AQI 12
Good
1.99μg/m³
PM2.5
6.31μg/m³
PM10
12.85ppb
O3
0.57ppb
SO2
4.37ppb
NO2
0.10ppm
CO
AQI 12
Good
1.99μg/m³
PM2.5
6.73μg/m³
PM10
13.08ppb
O3
0.56ppb
SO2
4.51ppb
NO2
0.10ppm
CO
AQI 14
Good
1.86μg/m³
PM2.5
7.82μg/m³
PM10
14.96ppb
O3
0.59ppb
SO2
6.57ppb
NO2
0.12ppm
CO
AQI 14
Good
2.28μg/m³
PM2.5
10.20μg/m³
PM10
14.67ppb
O3
0.64ppb
SO2
7.85ppb
NO2
0.10ppm
CO
AQI 12
Good
2.29μg/m³
PM2.5
11.68μg/m³
PM10
12.97ppb
O3
0.60ppb
SO2
5.30ppb
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
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 03:00:00, 2026-06-08.
The best air quality in Mount Vernon, Washington was observed at 03:00:00 on 2026-06-08.
The air quality in Mount Vernon, Washington right now is Good, with an AQI of 16.
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 1.639 μg/m3.
Mount Vernon, Washington currently has a PM10 concentration of 6.786 μg/m3.
The current carbon monoxide (CO) level in Mount Vernon, Washington is 0.119 ppm.
The current sulfur dioxide (SO2) concentration in Mount Vernon, Washington is 0.37 ppb.
Mount Vernon, Washington currently has an ozone (O3) concentration of 16.602 ppm.
The current level of nitrogen dioxide (NO2) in Mount Vernon, Washington is 4.252 ppb.
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