Stay updated with real-time air quality in Lemay, Missouri 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)
17
Good
Lemay, Missouri
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.50 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.93 μg/m³
0
55
155
255
425
605+
18.16 ppb
0
55
71
86
201
201+
0.38 ppb
0
36
76
186
605
1005+
3.34 ppb
0
54
101
361
1250
2050+
0.10 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Lemay, Missouri
Lemay, Missouri
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AQI 17
Good
3.48μg/m³
PM2.5
14.69μg/m³
PM10
18.23ppb
O3
0.38ppb
SO2
3.28ppb
NO2
0.10ppm
CO
AQI 18
Good
2.99μg/m³
PM2.5
13.65μg/m³
PM10
18.87ppb
O3
0.38ppb
SO2
3.48ppb
NO2
0.10ppm
CO
AQI 18
Good
3.33μg/m³
PM2.5
13.91μg/m³
PM10
18.71ppb
O3
0.42ppb
SO2
3.06ppb
NO2
0.10ppm
CO
AQI 22
Good
3.65μg/m³
PM2.5
14.88μg/m³
PM10
18.36ppb
O3
0.43ppb
SO2
3.06ppb
NO2
0.10ppm
CO
AQI 18
Good
2.81μg/m³
PM2.5
12.44μg/m³
PM10
18.94ppb
O3
0.40ppb
SO2
3.35ppb
NO2
0.10ppm
CO
AQI 18
Good
2.24μg/m³
PM2.5
10.48μg/m³
PM10
19.07ppb
O3
0.38ppb
SO2
3.64ppb
NO2
0.10ppm
CO
Air quality measurements for Missouri, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Lemay, Missouri is updated on an hourly basis.
The worst air quality in Lemay, Missouri was recorded at 05:00:00 on 2026-01-23.
The best air quality in Lemay, Missouri was recorded at 01:00:00 on 2026-01-22.
The real-time air quality index in Lemay, Missouri is 17, currently categorized as Good.
The most common pollutant in Lemay, Missouri is O3.
If the air quality in Lemay, Missouri is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Lemay, Missouri at present are 3.496 μg/m3.
The current PM10 levels in Lemay, Missouri are 14.926 μg/m3.
The current carbon monoxide (CO) level in Lemay, Missouri is 0.104 ppm.
The current sulfur dioxide (SO2) levels in Lemay, Missouri are 0.377 ppb.
The current ozone (O3) levels at Lemay, Missouri is 18.164 ppm.
The current nitrogen dioxide (NO2) levels at Lemay, Missouri is 3.336 ppb.
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