Stay updated with real-time air quality in Crestline, 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)
42
Good
Crestline, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.89 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
6.28 μg/m³
0
55
155
255
425
605+
44.95 ppb
0
55
71
86
201
201+
0.25 ppb
0
36
76
186
605
1005+
4.15 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Crestline, California
Crestline, California
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AQI 40
Good
1.79μg/m³
PM2.5
6.28μg/m³
PM10
43.14ppb
O3
0.25ppb
SO2
4.32ppb
NO2
0.21ppm
CO
AQI 38
Good
2.28μg/m³
PM2.5
6.64μg/m³
PM10
40.57ppb
O3
0.27ppb
SO2
6.56ppb
NO2
0.21ppm
CO
AQI 34
Good
1.44μg/m³
PM2.5
7.00μg/m³
PM10
37.22ppb
O3
0.26ppb
SO2
4.89ppb
NO2
0.21ppm
CO
AQI 37
Good
1.72μg/m³
PM2.5
7.23μg/m³
PM10
39.59ppb
O3
0.25ppb
SO2
4.54ppb
NO2
0.21ppm
CO
AQI 36
Good
2.40μg/m³
PM2.5
7.77μg/m³
PM10
38.94ppb
O3
0.27ppb
SO2
7.93ppb
NO2
0.21ppm
CO
AQI 36
Good
1.85μg/m³
PM2.5
7.11μg/m³
PM10
38.89ppb
O3
0.26ppb
SO2
4.78ppb
NO2
0.21ppm
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 Crestline, California are available every hour.
Crestline, California experienced its worst air quality at 10:00:00, 2026-10-21.
The best air quality in Crestline, California was observed at 10:00:00 on 2026-10-22.
The air quality in Crestline, California right now is Good, with an AQI of 42.
In Crestline, California, O3 is the most frequently found pollutant.
When air quality in Crestline, California is compromised, staying indoors and wearing a mask can reduce health risks.
Crestline, California currently has a PM2.5 concentration of 1.885 μg/m3.
Crestline, California currently has a PM10 concentration of 6.275 μg/m3.
The current carbon monoxide (CO) level in Crestline, California is 0.211 ppm.
The current sulfur dioxide (SO2) concentration in Crestline, California is 0.251 ppb.
Crestline, California currently has an ozone (O3) concentration of 44.948 ppm.
The current level of nitrogen dioxide (NO2) in Crestline, California is 4.15 ppb.
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