Stay updated with real-time air quality in TamalpaisHomestead Valley, 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)
22
Good
TamalpaisHomestead Valley, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.89 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.87 μg/m³
0
55
155
255
425
605+
12.57 ppb
0
55
71
86
201
201+
0.26 ppb
0
36
76
186
605
1005+
3.13 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
TamalpaisHomestead Valley, California
TamalpaisHomestead Valley, California
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AQI 22
Good
3.89μg/m³
PM2.5
13.87μg/m³
PM10
12.57ppb
O3
0.26ppb
SO2
3.13ppb
NO2
0.25ppm
CO
AQI 22
Good
3.87μg/m³
PM2.5
13.48μg/m³
PM10
12.32ppb
O3
0.26ppb
SO2
3.03ppb
NO2
0.24ppm
CO
AQI 22
Good
3.80μg/m³
PM2.5
12.39μg/m³
PM10
11.63ppb
O3
0.28ppb
SO2
2.73ppb
NO2
0.22ppm
CO
AQI 22
Good
3.73μg/m³
PM2.5
11.45μg/m³
PM10
11.06ppb
O3
0.30ppb
SO2
2.52ppb
NO2
0.20ppm
CO
AQI 22
Good
3.79μg/m³
PM2.5
12.21μg/m³
PM10
11.52ppb
O3
0.29ppb
SO2
2.69ppb
NO2
0.21ppm
CO
AQI 16
Good
2.82μg/m³
PM2.5
11.60μg/m³
PM10
13.92ppb
O3
0.27ppb
SO2
3.99ppb
NO2
0.31ppm
CO
Air quality and pollutant data for California, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Tamalpaishomestead Valley, California is updated every hour for accuracy.
In the past 24 hours, the air quality in Tamalpaishomestead Valley, California was at its worst at 01:00:00 on 2025-07-14.
In the last 24 hours, the best air quality in Tamalpaishomestead Valley, California was observed at 02:00:00 on 2025-07-14.
As of now, the AQI in Tamalpaishomestead Valley, California is 22, indicating Good conditions.
Tamalpaishomestead Valley, California air has the highest levels of PM2.5.
Poor air quality in Tamalpaishomestead Valley, California means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Tamalpaishomestead Valley, California are currently 3.888 μg/m3.
The PM10 concentration in Tamalpaishomestead Valley, California is 13.867 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Tamalpaishomestead Valley, California is 0.246 ppm.
Currently, Tamalpaishomestead Valley, California has a sulfur dioxide (SO2) concentration of 0.255 ppb.
The current ozone (O3) level in Tamalpaishomestead Valley, California at the moment is 12.566 ppm.
Nitrogen dioxide (NO2) level in Tamalpaishomestead Valley, California at the moment is 3.134 ppb.
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