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)
22
Good
Mount Vernon, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.00 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.03 μg/m³
0
55
155
255
425
605+
24.30 ppb
0
55
71
86
201
201+
0.24 ppb
0
36
76
186
605
1005+
4.21 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Mount Vernon, Washington
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AQI 22
Good
3.27μg/m³
PM2.5
13.41μg/m³
PM10
24.12ppb
O3
0.26ppb
SO2
4.31ppb
NO2
0.18ppm
CO
AQI 22
Good
3.63μg/m³
PM2.5
15.17μg/m³
PM10
23.58ppb
O3
0.27ppb
SO2
4.34ppb
NO2
0.19ppm
CO
AQI 22
Good
4.05μg/m³
PM2.5
18.20μg/m³
PM10
23.02ppb
O3
0.34ppb
SO2
5.07ppb
NO2
0.20ppm
CO
AQI 21
Good
3.20μg/m³
PM2.5
14.00μg/m³
PM10
22.92ppb
O3
0.36ppb
SO2
4.96ppb
NO2
0.18ppm
CO
AQI 22
Good
3.29μg/m³
PM2.5
11.01μg/m³
PM10
24.08ppb
O3
0.37ppb
SO2
6.29ppb
NO2
0.17ppm
CO
AQI 18
Good
3.16μg/m³
PM2.5
11.01μg/m³
PM10
19.10ppb
O3
0.37ppb
SO2
4.20ppb
NO2
0.17ppm
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, 2026-09-07.
The best air quality in Mount Vernon, Washington was observed at 11:00:00 on 2026-09-07.
The air quality in Mount Vernon, Washington right now is Good, with an AQI of 22.
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 3.003 μg/m3.
Mount Vernon, Washington currently has a PM10 concentration of 12.028 μg/m3.
The current carbon monoxide (CO) level in Mount Vernon, Washington is 0.181 ppm.
The current sulfur dioxide (SO2) concentration in Mount Vernon, Washington is 0.237 ppb.
Mount Vernon, Washington currently has an ozone (O3) concentration of 24.304 ppm.
The current level of nitrogen dioxide (NO2) in Mount Vernon, Washington is 4.215 ppb.
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