Stay updated with real-time air quality in Corona, 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)
44
Good
Corona, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
7.75 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
35.36 μg/m³
0
55
155
255
425
605+
19.66 ppb
0
55
71
86
201
201+
0.58 ppb
0
36
76
186
605
1005+
20.28 ppb
0
54
101
361
1250
2050+
0.34 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Corona, California
Corona, California
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AQI 30
Good
4.76μg/m³
PM2.5
20.57μg/m³
PM10
32.46ppb
O3
4.68ppb
SO2
31.75ppb
NO2
0.32ppm
CO
AQI 33
Good
5.62μg/m³
PM2.5
24.77μg/m³
PM10
29.98ppb
O3
5.15ppb
SO2
35.17ppb
NO2
0.34ppm
CO
AQI 38
Good
6.51μg/m³
PM2.5
28.85μg/m³
PM10
27.84ppb
O3
5.39ppb
SO2
37.07ppb
NO2
0.35ppm
CO
AQI 38
Good
6.69μg/m³
PM2.5
29.87μg/m³
PM10
28.25ppb
O3
5.09ppb
SO2
34.48ppb
NO2
0.34ppm
CO
AQI 36
Good
3.70μg/m³
PM2.5
16.10μg/m³
PM10
38.96ppb
O3
3.39ppb
SO2
23.64ppb
NO2
0.26ppm
CO
AQI 49
Good
9.22μg/m³
PM2.5
40.92μg/m³
PM10
23.12ppb
O3
5.42ppb
SO2
36.80ppb
NO2
0.35ppm
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 Corona, California is updated every hour for accuracy.
In the past 24 hours, the air quality in Corona, California was at its worst at 03:00:00 on 2025-10-21.
In the last 24 hours, the best air quality in Corona, California was observed at 03:00:00 on 2025-10-22.
As of now, the AQI in Corona, California is 44, indicating Good conditions.
Corona, California air has the highest levels of PM2.5.
Poor air quality in Corona, California means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Corona, California are currently 7.965 μg/m3.
The PM10 concentration in Corona, California is 38.452 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Corona, California is 0.318 ppm.
Currently, Corona, California has a sulfur dioxide (SO2) concentration of 0.713 ppb.
The current ozone (O3) level in Corona, California at the moment is 31.717 ppm.
Nitrogen dioxide (NO2) level in Corona, California at the moment is 16.929 ppb.
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