Stay updated with real-time air quality in Marysville, California 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, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.22 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
34.17 μg/m³
0
55
155
255
425
605+
33.10 ppb
0
55
71
86
201
201+
0.28 ppb
0
36
76
186
605
1005+
3.20 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Very high
Marysville, California
Marysville, California
Scroll To Air Quality MapLoading...
AQI 49
Good
9.22μg/m³
PM2.5
34.17μg/m³
PM10
33.10ppb
O3
0.28ppb
SO2
3.20ppb
NO2
0.23ppm
CO
AQI 49
Good
9.32μg/m³
PM2.5
35.23μg/m³
PM10
34.22ppb
O3
0.28ppb
SO2
3.16ppb
NO2
0.23ppm
CO
AQI 49
Good
9.43μg/m³
PM2.5
35.14μg/m³
PM10
34.09ppb
O3
0.28ppb
SO2
3.20ppb
NO2
0.23ppm
CO
AQI 54
Moderate
10.58μg/m³
PM2.5
43.87μg/m³
PM10
26.71ppb
O3
0.28ppb
SO2
3.65ppb
NO2
0.23ppm
CO
AQI 54
Moderate
11.35μg/m³
PM2.5
36.43μg/m³
PM10
41.98ppb
O3
0.28ppb
SO2
2.56ppb
NO2
0.23ppm
CO
AQI 58
Moderate
13.31μg/m³
PM2.5
58.35μg/m³
PM10
34.46ppb
O3
0.26ppb
SO2
3.88ppb
NO2
0.21ppm
CO
Air quality measurements for California, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Marysville, California is updated on an hourly basis.
The worst air quality in Marysville, California was recorded at 05:00:00 on 2026-05-02.
The best air quality in Marysville, California was recorded at 05:00:00 on 2026-05-01.
The real-time air quality index in Marysville, California is 49, currently categorized as Good.
The most common pollutant in Marysville, California is PM2.5.
If the air quality in Marysville, California is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Marysville, California at present are 9.217 μg/m3.
The current PM10 levels in Marysville, California are 34.17 μg/m3.
The current carbon monoxide (CO) level in Marysville, California is 0.232 ppm.
The current sulfur dioxide (SO2) levels in Marysville, California are 0.281 ppb.
The current ozone (O3) levels at Marysville, California is 33.104 ppm.
The current nitrogen dioxide (NO2) levels at Marysville, California is 3.197 ppb.
All Rights Reserved © Ambee Inc. 2025