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)
16
Good
TamalpaisHomestead Valley, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
2.51 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.72 μg/m³
0
55
155
255
425
605+
15.80 ppb
0
55
71
86
201
201+
0.42 ppb
0
36
76
186
605
1005+
2.14 ppb
0
54
101
361
1250
2050+
0.23 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 27
Good
5.13μg/m³
PM2.5
22.09μg/m³
PM10
18.23ppb
O3
0.20ppb
SO2
1.26ppb
NO2
0.27ppm
CO
AQI 22
Good
4.45μg/m³
PM2.5
19.05μg/m³
PM10
18.03ppb
O3
0.20ppb
SO2
1.20ppb
NO2
0.26ppm
CO
AQI 16
Good
2.51μg/m³
PM2.5
10.46μg/m³
PM10
17.49ppb
O3
0.21ppb
SO2
1.04ppb
NO2
0.23ppm
CO
AQI 16
Good
0.80μg/m³
PM2.5
2.89μg/m³
PM10
17.05ppb
O3
0.23ppb
SO2
0.91ppb
NO2
0.20ppm
CO
AQI 16
Good
2.18μg/m³
PM2.5
9.01μg/m³
PM10
17.40ppb
O3
0.22ppb
SO2
1.01ppb
NO2
0.22ppm
CO
AQI 18
Good
2.07μg/m³
PM2.5
9.05μg/m³
PM10
19.12ppb
O3
0.21ppb
SO2
1.33ppb
NO2
0.32ppm
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 09:00:00 on 2025-07-27.
In the last 24 hours, the best air quality in Tamalpaishomestead Valley, California was observed at 05:00:00 on 2025-07-27.
As of now, the AQI in Tamalpaishomestead Valley, California is 27, 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 5.129 μg/m3.
The PM10 concentration in Tamalpaishomestead Valley, California is 22.088 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Tamalpaishomestead Valley, California is 0.273 ppm.
Currently, Tamalpaishomestead Valley, California has a sulfur dioxide (SO2) concentration of 0.195 ppb.
The current ozone (O3) level in Tamalpaishomestead Valley, California at the moment is 18.225 ppm.
Nitrogen dioxide (NO2) level in Tamalpaishomestead Valley, California at the moment is 1.256 ppb.
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