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)
18
Good
Santa Cruz, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
2.14 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.19 μg/m³
0
55
155
255
425
605+
18.68 ppb
0
55
71
86
201
201+
0.69 ppb
0
36
76
186
605
1005+
2.35 ppb
0
54
101
361
1250
2050+
0.26 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 19
Good
3.04μg/m³
PM2.5
20.25μg/m³
PM10
17.98ppb
O3
0.73ppb
SO2
2.17ppb
NO2
0.21ppm
CO
AQI 19
Good
3.11μg/m³
PM2.5
20.07μg/m³
PM10
17.82ppb
O3
0.73ppb
SO2
2.20ppb
NO2
0.21ppm
CO
AQI 22
Good
3.50μg/m³
PM2.5
17.04μg/m³
PM10
16.86ppb
O3
0.73ppb
SO2
2.43ppb
NO2
0.21ppm
CO
AQI 16
Good
2.24μg/m³
PM2.5
17.03μg/m³
PM10
15.87ppb
O3
0.76ppb
SO2
1.89ppb
NO2
0.18ppm
CO
AQI 33
Good
5.87μg/m³
PM2.5
29.87μg/m³
PM10
14.23ppb
O3
0.73ppb
SO2
3.39ppb
NO2
0.21ppm
CO
AQI 33
Good
5.78μg/m³
PM2.5
28.39μg/m³
PM10
14.60ppb
O3
0.73ppb
SO2
3.51ppb
NO2
0.22ppm
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 05:00:00 on 2025-07-12.
In the last 24 hours, the best air quality in Santa Cruz, California was observed at 07:00:00 on 2025-07-11.
As of now, the AQI in Santa Cruz, California is 18, indicating Good conditions.
Santa Cruz, California air has the highest levels of PM10.
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 3.194 μg/m3.
The PM10 concentration in Santa Cruz, California is 19.28 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Santa Cruz, California is 0.207 ppm.
Currently, Santa Cruz, California has a sulfur dioxide (SO2) concentration of 0.731 ppb.
The current ozone (O3) level in Santa Cruz, California at the moment is 17.625 ppm.
Nitrogen dioxide (NO2) level in Santa Cruz, California at the moment is 2.258 ppb.
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