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)
49
Good
Tustin, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
9.07 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.64 μg/m³
0
55
155
255
425
605+
24.23 ppb
0
55
71
86
201
201+
0.29 ppb
0
36
76
186
605
1005+
6.57 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Tustin, California
Tustin, California
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AQI 22
Good
4.00μg/m³
PM2.5
18.39μg/m³
PM10
23.97ppb
O3
0.30ppb
SO2
9.14ppb
NO2
0.18ppm
CO
AQI 49
Good
9.40μg/m³
PM2.5
13.08μg/m³
PM10
24.00ppb
O3
0.30ppb
SO2
6.90ppb
NO2
0.20ppm
CO
AQI 52
Moderate
9.64μg/m³
PM2.5
13.34μg/m³
PM10
24.07ppb
O3
0.29ppb
SO2
7.01ppb
NO2
0.20ppm
CO
AQI 94
Moderate
32.41μg/m³
PM2.5
95.40μg/m³
PM10
24.04ppb
O3
0.35ppb
SO2
2.76ppb
NO2
0.18ppm
CO
AQI 44
Good
8.21μg/m³
PM2.5
12.66μg/m³
PM10
24.00ppb
O3
0.29ppb
SO2
6.70ppb
NO2
0.20ppm
CO
AQI 27
Good
5.20μg/m³
PM2.5
24.29μg/m³
PM10
24.01ppb
O3
0.37ppb
SO2
2.38ppb
NO2
0.17ppm
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 11:00:00, 2025-09-09.
The best air quality in Tustin, California was observed at 10:00:00 on 2025-09-10.
The air quality in Tustin, California right now is Good, with an AQI of 49.
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 9.068 μg/m3.
Tustin, California currently has a PM10 concentration of 13.644 μg/m3.
The current carbon monoxide (CO) level in Tustin, California is 0.195 ppm.
The current sulfur dioxide (SO2) concentration in Tustin, California is 0.295 ppb.
Tustin, California currently has an ozone (O3) concentration of 24.232 ppm.
The current level of nitrogen dioxide (NO2) in Tustin, California is 6.572 ppb.
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