Stay updated with real-time air quality in Gilroy, 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)
29
Good
Gilroy, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.31 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
11.44 μg/m³
0
55
155
255
425
605+
30.88 ppb
0
55
71
86
201
201+
0.90 ppb
0
36
76
186
605
1005+
4.50 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Gilroy, California
Gilroy, California
Scroll To Air Quality MapLoading...
AQI 29
Good
3.39μg/m³
PM2.5
12.43μg/m³
PM10
30.71ppb
O3
0.84ppb
SO2
5.38ppb
NO2
0.20ppm
CO
AQI 27
Good
4.26μg/m³
PM2.5
19.79μg/m³
PM10
28.79ppb
O3
0.83ppb
SO2
5.42ppb
NO2
0.20ppm
CO
AQI 27
Good
3.75μg/m³
PM2.5
6.21μg/m³
PM10
29.08ppb
O3
0.85ppb
SO2
4.42ppb
NO2
0.17ppm
CO
AQI 30
Good
3.23μg/m³
PM2.5
13.80μg/m³
PM10
32.23ppb
O3
0.84ppb
SO2
4.41ppb
NO2
0.12ppm
CO
AQI 33
Good
4.54μg/m³
PM2.5
19.55μg/m³
PM10
36.35ppb
O3
0.82ppb
SO2
4.80ppb
NO2
0.22ppm
CO
AQI 31
Good
3.67μg/m³
PM2.5
16.27μg/m³
PM10
33.44ppb
O3
0.84ppb
SO2
4.40ppb
NO2
0.10ppm
CO
Air quality data and pollutant measurements for California, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Gilroy, California is updated every hour.
The worst air quality in Gilroy, California in the last 24 hours was observed at 11:00:00 on 2025-06-05.
In the last 24 hrs, the best air quality in Gilroy, California was observed at 10:00:00 on 2025-06-06.
The current air quality in Gilroy, California is 29, categorized as Good based on real-time data.
The most common pollutant in Gilroy, California is O3.
If the air quality in Gilroy, California is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Gilroy, California is 3.308 μg/m3.
The current PM10 concentration at Gilroy, California is 11.444 μg/m3.
The current carbon monoxide (CO) concentration at Gilroy, California is 0.254 ppm.
The current sulfur dioxide (SO2) concentration at Gilroy, California is 0.899 ppb.
The current ozone (O3) concentration at Gilroy, California is 30.882 ppm.
The current nitrogen dioxide (NO2) concentration at Gilroy, California is 4.499 ppb.
All Rights Reserved © Ambee Inc. 2025