Stay updated with real-time air quality in Troy, Illinois 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
Troy, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
6.67 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.25 μg/m³
0
55
155
255
425
605+
26.38 ppb
0
55
71
86
201
201+
0.57 ppb
0
36
76
186
605
1005+
3.71 ppb
0
54
101
361
1250
2050+
0.32 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Troy, Illinois
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AQI 56
Moderate
12.07μg/m³
PM2.5
51.65μg/m³
PM10
28.94ppb
O3
0.33ppb
SO2
2.38ppb
NO2
0.26ppm
CO
AQI 56
Moderate
11.91μg/m³
PM2.5
52.34μg/m³
PM10
28.60ppb
O3
0.33ppb
SO2
2.42ppb
NO2
0.26ppm
CO
AQI 56
Moderate
12.12μg/m³
PM2.5
52.25μg/m³
PM10
29.06ppb
O3
0.33ppb
SO2
2.35ppb
NO2
0.26ppm
CO
AQI 54
Moderate
11.10μg/m³
PM2.5
54.27μg/m³
PM10
30.02ppb
O3
0.35ppb
SO2
2.41ppb
NO2
0.25ppm
CO
AQI 54
Moderate
10.90μg/m³
PM2.5
53.97μg/m³
PM10
29.45ppb
O3
0.33ppb
SO2
2.43ppb
NO2
0.26ppm
CO
AQI 54
Moderate
11.10μg/m³
PM2.5
54.27μg/m³
PM10
30.02ppb
O3
0.35ppb
SO2
2.41ppb
NO2
0.25ppm
CO
The air quality data for Illinois, 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 Troy, Illinois are available every hour.
Troy, Illinois experienced its worst air quality at 09:00:00, 2025-09-05.
The best air quality in Troy, Illinois was observed at 02:00:00 on 2025-09-06.
The air quality in Troy, Illinois right now is Good, with an AQI of 38.
In Troy, Illinois, PM2.5 is the most frequently found pollutant.
When air quality in Troy, Illinois is compromised, staying indoors and wearing a mask can reduce health risks.
Troy, Illinois currently has a PM2.5 concentration of 6.671 μg/m3.
Troy, Illinois currently has a PM10 concentration of 28.247 μg/m3.
The current carbon monoxide (CO) level in Troy, Illinois is 0.317 ppm.
The current sulfur dioxide (SO2) concentration in Troy, Illinois is 0.575 ppb.
Troy, Illinois currently has an ozone (O3) concentration of 26.377 ppm.
The current level of nitrogen dioxide (NO2) in Troy, Illinois is 3.707 ppb.
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