Stay updated with real-time air quality in Lone Tree, 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)
34
Good
Lone Tree, Colorado
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
1.23 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
3.90 μg/m³
0
55
155
255
425
605+
36.71 ppb
0
55
71
86
201
201+
0.61 ppb
0
36
76
186
605
1005+
8.46 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Lone Tree, Colorado
Lone Tree, Colorado
Scroll To Air Quality MapLoading...
AQI 51
Moderate
3.70μg/m³
PM2.5
12.90μg/m³
PM10
54.79ppb
O3
0.59ppb
SO2
7.58ppb
NO2
0.24ppm
CO
AQI 51
Moderate
3.67μg/m³
PM2.5
12.70μg/m³
PM10
54.99ppb
O3
0.59ppb
SO2
7.62ppb
NO2
0.24ppm
CO
AQI 50
Good
3.71μg/m³
PM2.5
13.09μg/m³
PM10
54.42ppb
O3
0.59ppb
SO2
7.29ppb
NO2
0.23ppm
CO
AQI 51
Moderate
3.53μg/m³
PM2.5
12.61μg/m³
PM10
54.92ppb
O3
0.59ppb
SO2
7.58ppb
NO2
0.24ppm
CO
AQI 61
Moderate
4.96μg/m³
PM2.5
25.36μg/m³
PM10
57.58ppb
O3
0.57ppb
SO2
6.86ppb
NO2
0.21ppm
CO
AQI 54
Moderate
2.48μg/m³
PM2.5
10.39μg/m³
PM10
56.08ppb
O3
0.60ppb
SO2
7.31ppb
NO2
0.24ppm
CO
Air quality and pollutant data for Colorado, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Lone Tree, Colorado is updated every hour for accuracy.
In the past 24 hours, the air quality in Lone Tree, Colorado was at its worst at 09:00:00 on 2025-07-19.
In the last 24 hours, the best air quality in Lone Tree, Colorado was observed at 01:00:00 on 2025-07-20.
As of now, the AQI in Lone Tree, Colorado is 51, indicating Moderate conditions.
Lone Tree, Colorado air has the highest levels of O3.
Poor air quality in Lone Tree, Colorado means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Lone Tree, Colorado are currently 3.695 μg/m3.
The PM10 concentration in Lone Tree, Colorado is 12.829 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Lone Tree, Colorado is 0.244 ppm.
Currently, Lone Tree, Colorado has a sulfur dioxide (SO2) concentration of 0.592 ppb.
The current ozone (O3) level in Lone Tree, Colorado at the moment is 54.886 ppm.
Nitrogen dioxide (NO2) level in Lone Tree, Colorado at the moment is 7.626 ppb.
All Rights Reserved © Ambee Inc. 2025