Stay updated with real-time air quality in Four Square Mile, Colorado 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)
38
Good
Four Square Mile, Colorado
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
6.73 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
23.14 μg/m³
0
55
155
255
425
605+
29.72 ppb
0
55
71
86
201
201+
0.44 ppb
0
36
76
186
605
1005+
13.93 ppb
0
54
101
361
1250
2050+
0.29 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Four Square Mile, Colorado
Four Square Mile, Colorado
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AQI 33
Good
5.92μg/m³
PM2.5
15.99μg/m³
PM10
30.68ppb
O3
0.42ppb
SO2
11.96ppb
NO2
0.34ppm
CO
AQI 38
Good
6.65μg/m³
PM2.5
16.53μg/m³
PM10
29.40ppb
O3
0.44ppb
SO2
11.71ppb
NO2
0.31ppm
CO
AQI 28
Good
3.58μg/m³
PM2.5
11.53μg/m³
PM10
30.38ppb
O3
0.43ppb
SO2
16.37ppb
NO2
0.32ppm
CO
AQI 28
Good
4.23μg/m³
PM2.5
16.44μg/m³
PM10
29.81ppb
O3
0.40ppb
SO2
15.17ppb
NO2
0.34ppm
CO
AQI 29
Good
3.61μg/m³
PM2.5
11.04μg/m³
PM10
30.60ppb
O3
0.43ppb
SO2
16.64ppb
NO2
0.32ppm
CO
AQI 44
Good
7.55μg/m³
PM2.5
31.65μg/m³
PM10
29.73ppb
O3
0.34ppb
SO2
15.56ppb
NO2
0.39ppm
CO
The air quality data for Colorado, 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 Four Square Mile, Colorado are available every hour.
Four Square Mile, Colorado experienced its worst air quality at 07:00:00, 2025-06-05.
The best air quality in Four Square Mile, Colorado was observed at 08:00:00 on 2025-06-05.
The air quality in Four Square Mile, Colorado right now is Good, with an AQI of 38.
In Four Square Mile, Colorado, PM2.5 is the most frequently found pollutant.
When air quality in Four Square Mile, Colorado is compromised, staying indoors and wearing a mask can reduce health risks.
Four Square Mile, Colorado currently has a PM2.5 concentration of 6.731 μg/m3.
Four Square Mile, Colorado currently has a PM10 concentration of 23.139 μg/m3.
The current carbon monoxide (CO) level in Four Square Mile, Colorado is 0.287 ppm.
The current sulfur dioxide (SO2) concentration in Four Square Mile, Colorado is 0.442 ppb.
Four Square Mile, Colorado currently has an ozone (O3) concentration of 29.721 ppm.
The current level of nitrogen dioxide (NO2) in Four Square Mile, Colorado is 13.926 ppb.
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