Stay updated with real-time air quality in La CrescentaMontrose, 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
La CrescentaMontrose, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.50 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.29 μg/m³
0
55
155
255
425
605+
5.93 ppb
0
55
71
86
201
201+
0.65 ppb
0
36
76
186
605
1005+
20.79 ppb
0
54
101
361
1250
2050+
1.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
La CrescentaMontrose, California
La CrescentaMontrose, California
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AQI 27
Good
5.45μg/m³
PM2.5
21.56μg/m³
PM10
7.42ppb
O3
0.54ppb
SO2
20.77ppb
NO2
0.98ppm
CO
AQI 66
Moderate
17.43μg/m³
PM2.5
51.08μg/m³
PM10
4.50ppb
O3
0.48ppb
SO2
20.66ppb
NO2
0.97ppm
CO
AQI 60
Moderate
13.59μg/m³
PM2.5
52.71μg/m³
PM10
3.37ppb
O3
0.50ppb
SO2
18.40ppb
NO2
0.98ppm
CO
AQI 66
Moderate
16.84μg/m³
PM2.5
41.25μg/m³
PM10
4.29ppb
O3
0.45ppb
SO2
22.02ppb
NO2
0.95ppm
CO
AQI 58
Moderate
13.21μg/m³
PM2.5
32.11μg/m³
PM10
4.94ppb
O3
0.50ppb
SO2
19.80ppb
NO2
0.98ppm
CO
AQI 60
Moderate
14.20μg/m³
PM2.5
35.91μg/m³
PM10
4.92ppb
O3
0.49ppb
SO2
20.05ppb
NO2
0.99ppm
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 La Crescentamontrose, California are available every hour.
La Crescentamontrose, California experienced its worst air quality at 07:00:00, 2026-01-22.
The best air quality in La Crescentamontrose, California was observed at 01:00:00 on 2026-01-23.
The air quality in La Crescentamontrose, California right now is Good, with an AQI of 49.
In La Crescentamontrose, California, PM2.5 is the most frequently found pollutant.
When air quality in La Crescentamontrose, California is compromised, staying indoors and wearing a mask can reduce health risks.
La Crescentamontrose, California currently has a PM2.5 concentration of 8.502 μg/m3.
La Crescentamontrose, California currently has a PM10 concentration of 18.287 μg/m3.
The current carbon monoxide (CO) level in La Crescentamontrose, California is 1.165 ppm.
The current sulfur dioxide (SO2) concentration in La Crescentamontrose, California is 0.654 ppb.
La Crescentamontrose, California currently has an ozone (O3) concentration of 5.927 ppm.
The current level of nitrogen dioxide (NO2) in La Crescentamontrose, California is 20.787 ppb.
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