Stay updated with real-time air quality in Carlsbad, 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
Carlsbad, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
9.09 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.65 μg/m³
0
55
155
255
425
605+
34.31 ppb
0
55
71
86
201
201+
0.21 ppb
0
36
76
186
605
1005+
2.63 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Carlsbad, California
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AQI 52
Moderate
9.62μg/m³
PM2.5
29.71μg/m³
PM10
34.90ppb
O3
0.21ppb
SO2
2.46ppb
NO2
0.17ppm
CO
AQI 52
Moderate
9.57μg/m³
PM2.5
29.62μg/m³
PM10
34.85ppb
O3
0.21ppb
SO2
2.47ppb
NO2
0.17ppm
CO
AQI 33
Good
6.40μg/m³
PM2.5
18.85μg/m³
PM10
30.86ppb
O3
0.22ppb
SO2
2.46ppb
NO2
0.17ppm
CO
AQI 33
Good
5.95μg/m³
PM2.5
16.42μg/m³
PM10
30.75ppb
O3
0.22ppb
SO2
2.46ppb
NO2
0.17ppm
CO
AQI 33
Good
6.02μg/m³
PM2.5
19.16μg/m³
PM10
30.39ppb
O3
0.22ppb
SO2
4.06ppb
NO2
0.18ppm
CO
AQI 33
Good
5.95μg/m³
PM2.5
16.27μg/m³
PM10
30.40ppb
O3
0.22ppb
SO2
2.47ppb
NO2
0.16ppm
CO
Air quality measurements for California, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Carlsbad, California is updated on an hourly basis.
The worst air quality in Carlsbad, California was recorded at 09:00:00 on 2025-06-07.
The best air quality in Carlsbad, California was recorded at 05:00:00 on 2025-06-06.
The real-time air quality index in Carlsbad, California is 49, currently categorized as Good.
The most common pollutant in Carlsbad, California is PM2.5.
If the air quality in Carlsbad, California is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Carlsbad, California at present are 9.091 μg/m3.
The current PM10 levels in Carlsbad, California are 27.647 μg/m3.
The current carbon monoxide (CO) level in Carlsbad, California is 0.167 ppm.
The current sulfur dioxide (SO2) levels in Carlsbad, California are 0.211 ppb.
The current ozone (O3) levels at Carlsbad, California is 34.313 ppm.
The current nitrogen dioxide (NO2) levels at Carlsbad, California is 2.627 ppb.
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