Stay updated with real-time air quality in Marysville, 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)
49
Good
Marysville, Washington
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
9.12 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
38.37 μg/m³
0
55
155
255
425
605+
31.77 ppb
0
55
71
86
201
201+
0.60 ppb
0
36
76
186
605
1005+
6.42 ppb
0
54
101
361
1250
2050+
0.33 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Marysville, Washington
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AQI 56
Moderate
11.64μg/m³
PM2.5
42.18μg/m³
PM10
17.13ppb
O3
1.12ppb
SO2
11.96ppb
NO2
0.27ppm
CO
AQI 64
Moderate
16.28μg/m³
PM2.5
65.88μg/m³
PM10
20.70ppb
O3
1.09ppb
SO2
6.71ppb
NO2
0.28ppm
CO
AQI 52
Moderate
10.20μg/m³
PM2.5
17.65μg/m³
PM10
13.76ppb
O3
1.16ppb
SO2
13.60ppb
NO2
0.27ppm
CO
AQI 56
Moderate
12.10μg/m³
PM2.5
22.85μg/m³
PM10
14.05ppb
O3
1.12ppb
SO2
9.77ppb
NO2
0.28ppm
CO
AQI 71
Moderate
19.53μg/m³
PM2.5
71.50μg/m³
PM10
17.85ppb
O3
1.06ppb
SO2
6.71ppb
NO2
0.29ppm
CO
AQI 54
Moderate
10.86μg/m³
PM2.5
27.64μg/m³
PM10
15.25ppb
O3
1.16ppb
SO2
13.99ppb
NO2
0.27ppm
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 Marysville, Washington are available every hour.
Marysville, Washington experienced its worst air quality at 11:00:00, 2025-09-05.
The best air quality in Marysville, Washington was observed at 04:00:00 on 2025-09-05.
The air quality in Marysville, Washington right now is Good, with an AQI of 49.
In Marysville, Washington, PM2.5 is the most frequently found pollutant.
When air quality in Marysville, Washington is compromised, staying indoors and wearing a mask can reduce health risks.
Marysville, Washington currently has a PM2.5 concentration of 9.118 μg/m3.
Marysville, Washington currently has a PM10 concentration of 38.365 μg/m3.
The current carbon monoxide (CO) level in Marysville, Washington is 0.33 ppm.
The current sulfur dioxide (SO2) concentration in Marysville, Washington is 0.602 ppb.
Marysville, Washington currently has an ozone (O3) concentration of 31.768 ppm.
The current level of nitrogen dioxide (NO2) in Marysville, Washington is 6.422 ppb.
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