Stay updated with real-time air quality in Santa Cruz, 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
Santa Cruz, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.27 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.52 μg/m³
0
55
155
255
425
605+
16.45 ppb
0
55
71
86
201
201+
0.59 ppb
0
36
76
186
605
1005+
4.43 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Santa Cruz, California
Santa Cruz, California
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AQI 22
Good
4.31μg/m³
PM2.5
19.04μg/m³
PM10
18.01ppb
O3
0.79ppb
SO2
4.10ppb
NO2
0.21ppm
CO
AQI 22
Good
4.35μg/m³
PM2.5
19.30μg/m³
PM10
18.07ppb
O3
0.79ppb
SO2
4.11ppb
NO2
0.21ppm
CO
AQI 22
Good
4.47μg/m³
PM2.5
20.13μg/m³
PM10
18.24ppb
O3
0.79ppb
SO2
4.19ppb
NO2
0.21ppm
CO
AQI 27
Good
4.65μg/m³
PM2.5
20.32μg/m³
PM10
21.70ppb
O3
0.80ppb
SO2
4.18ppb
NO2
0.21ppm
CO
AQI 27
Good
4.53μg/m³
PM2.5
21.95μg/m³
PM10
20.03ppb
O3
0.80ppb
SO2
4.55ppb
NO2
0.20ppm
CO
AQI 27
Good
5.32μg/m³
PM2.5
25.19μg/m³
PM10
20.01ppb
O3
0.80ppb
SO2
4.56ppb
NO2
0.20ppm
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 Santa Cruz, California is updated every hour for accuracy.
In the past 24 hours, the air quality in Santa Cruz, California was at its worst at 04:00:00 on 2025-07-28.
In the last 24 hours, the best air quality in Santa Cruz, California was observed at 01:00:00 on 2025-07-28.
As of now, the AQI in Santa Cruz, California is 22, indicating Good conditions.
Santa Cruz, California air has the highest levels of PM2.5.
Poor air quality in Santa Cruz, California means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Santa Cruz, California are currently 3.536 μg/m3.
The PM10 concentration in Santa Cruz, California is 15.833 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Santa Cruz, California is 0.2 ppm.
Currently, Santa Cruz, California has a sulfur dioxide (SO2) concentration of 0.806 ppb.
The current ozone (O3) level in Santa Cruz, California at the moment is 20.217 ppm.
Nitrogen dioxide (NO2) level in Santa Cruz, California at the moment is 4.048 ppb.
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