Stay updated with real-time air quality in Coronado, 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)
52
Moderate
Coronado, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
10.29 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.16 μg/m³
0
55
155
255
425
605+
22.85 ppb
0
55
71
86
201
201+
0.90 ppb
0
36
76
186
605
1005+
9.86 ppb
0
54
101
361
1250
2050+
0.31 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Coronado, California
Coronado, California
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AQI 52
Moderate
10.37μg/m³
PM2.5
26.21μg/m³
PM10
21.41ppb
O3
0.90ppb
SO2
10.03ppb
NO2
0.31ppm
CO
AQI 52
Moderate
10.10μg/m³
PM2.5
27.75μg/m³
PM10
25.75ppb
O3
0.90ppb
SO2
9.47ppb
NO2
0.31ppm
CO
AQI 52
Moderate
9.79μg/m³
PM2.5
27.43μg/m³
PM10
30.05ppb
O3
0.90ppb
SO2
9.07ppb
NO2
0.31ppm
CO
AQI 52
Moderate
10.24μg/m³
PM2.5
34.86μg/m³
PM10
29.31ppb
O3
0.90ppb
SO2
8.97ppb
NO2
0.31ppm
CO
AQI 52
Moderate
9.75μg/m³
PM2.5
28.03μg/m³
PM10
29.52ppb
O3
0.90ppb
SO2
9.44ppb
NO2
0.31ppm
CO
AQI 52
Moderate
9.60μg/m³
PM2.5
27.61μg/m³
PM10
25.51ppb
O3
0.90ppb
SO2
9.71ppb
NO2
0.31ppm
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 Coronado, California are available every hour.
Coronado, California experienced its worst air quality at 03:00:00, 2026-07-24.
The best air quality in Coronado, California was observed at 09:00:00 on 2026-07-23.
The air quality in Coronado, California right now is Moderate, with an AQI of 52.
In Coronado, California, PM2.5 is the most frequently found pollutant.
When air quality in Coronado, California is compromised, staying indoors and wearing a mask can reduce health risks.
Coronado, California currently has a PM2.5 concentration of 10.292 μg/m3.
Coronado, California currently has a PM10 concentration of 27.163 μg/m3.
The current carbon monoxide (CO) level in Coronado, California is 0.311 ppm.
The current sulfur dioxide (SO2) concentration in Coronado, California is 0.903 ppb.
Coronado, California currently has an ozone (O3) concentration of 22.846 ppm.
The current level of nitrogen dioxide (NO2) in Coronado, California is 9.856 ppb.
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