Stay updated with real-time air quality in Tustin, 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)
27
Good
Tustin, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.54 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
11.55 μg/m³
0
55
155
255
425
605+
19.77 ppb
0
55
71
86
201
201+
0.25 ppb
0
36
76
186
605
1005+
11.25 ppb
0
54
101
361
1250
2050+
0.29 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Tustin, California
Tustin, California
Scroll To Air Quality MapLoading...
AQI 19
Good
3.37μg/m³
PM2.5
9.79μg/m³
PM10
21.12ppb
O3
0.30ppb
SO2
8.60ppb
NO2
0.32ppm
CO
AQI 22
Good
3.85μg/m³
PM2.5
10.55μg/m³
PM10
20.63ppb
O3
0.35ppb
SO2
11.28ppb
NO2
0.41ppm
CO
AQI 22
Good
3.88μg/m³
PM2.5
10.92μg/m³
PM10
20.54ppb
O3
0.35ppb
SO2
11.41ppb
NO2
0.41ppm
CO
AQI 22
Good
4.01μg/m³
PM2.5
19.13μg/m³
PM10
23.66ppb
O3
0.32ppb
SO2
6.55ppb
NO2
0.32ppm
CO
AQI 22
Good
4.06μg/m³
PM2.5
10.21μg/m³
PM10
20.96ppb
O3
0.35ppb
SO2
10.75ppb
NO2
0.40ppm
CO
AQI 22
Good
4.05μg/m³
PM2.5
15.21μg/m³
PM10
23.71ppb
O3
0.32ppb
SO2
6.87ppb
NO2
0.32ppm
CO
The air quality data for California, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Tustin, California are available every hour.
Tustin, California experienced its worst air quality at 07:00:00, 2025-07-16.
The best air quality in Tustin, California was observed at 08:00:00 on 2025-07-17.
The air quality in Tustin, California right now is Good, with an AQI of 27.
In Tustin, California, PM2.5 is the most frequently found pollutant.
When air quality in Tustin, California is compromised, staying indoors and wearing a mask can reduce health risks.
Tustin, California currently has a PM2.5 concentration of 4.538 μg/m3.
Tustin, California currently has a PM10 concentration of 11.547 μg/m3.
The current carbon monoxide (CO) level in Tustin, California is 0.292 ppm.
The current sulfur dioxide (SO2) concentration in Tustin, California is 0.252 ppb.
Tustin, California currently has an ozone (O3) concentration of 19.775 ppm.
The current level of nitrogen dioxide (NO2) in Tustin, California is 11.251 ppb.
All Rights Reserved © Ambee Inc. 2025