Stay updated with real-time air quality in Mountain House, 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)
27
Good
Mountain House, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.16 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
21.98 μg/m³
0
55
155
255
425
605+
25.93 ppb
0
55
71
86
201
201+
0.49 ppb
0
36
76
186
605
1005+
3.87 ppb
0
54
101
361
1250
2050+
0.31 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Mountain House, California
Mountain House, California
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AQI 33
Good
6.27μg/m³
PM2.5
26.81μg/m³
PM10
26.07ppb
O3
0.49ppb
SO2
3.86ppb
NO2
0.32ppm
CO
AQI 38
Good
6.55μg/m³
PM2.5
23.92μg/m³
PM10
26.15ppb
O3
0.52ppb
SO2
3.23ppb
NO2
0.34ppm
CO
AQI 38
Good
7.17μg/m³
PM2.5
22.53μg/m³
PM10
26.04ppb
O3
0.56ppb
SO2
2.62ppb
NO2
0.38ppm
CO
AQI 44
Good
8.08μg/m³
PM2.5
35.90μg/m³
PM10
20.04ppb
O3
0.45ppb
SO2
4.10ppb
NO2
0.30ppm
CO
AQI 38
Good
7.22μg/m³
PM2.5
19.07μg/m³
PM10
23.80ppb
O3
0.50ppb
SO2
3.59ppb
NO2
0.31ppm
CO
AQI 44
Good
7.81μg/m³
PM2.5
16.43μg/m³
PM10
24.06ppb
O3
0.50ppb
SO2
3.15ppb
NO2
0.32ppm
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 Mountain House, California is updated on an hourly basis.
The worst air quality in Mountain House, California was recorded at 03:00:00 on 2026-09-21.
The best air quality in Mountain House, California was recorded at 12:00:00 on 2026-09-20.
The real-time air quality index in Mountain House, California is 27, currently categorized as Good.
The most common pollutant in Mountain House, California is PM2.5.
If the air quality in Mountain House, California is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Mountain House, California at present are 5.155 μg/m3.
The current PM10 levels in Mountain House, California are 21.985 μg/m3.
The current carbon monoxide (CO) level in Mountain House, California is 0.314 ppm.
The current sulfur dioxide (SO2) levels in Mountain House, California are 0.488 ppb.
The current ozone (O3) levels at Mountain House, California is 25.927 ppm.
The current nitrogen dioxide (NO2) levels at Mountain House, California is 3.87 ppb.
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