Live air quality index in Lemay, Missouri today
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)
64
Moderate
Lemay, Missouri
Last updated: ... (Local time)
Major air pollutants in Lemay, Missouri
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
15.68 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
66.26 μg/m³
0
55
155
255
425
605+
Ozone (O3)
4.79 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.58 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
13.87 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.45 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Lemay, Missouri
Lemay, Missouri
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Lemay, Missouri air quality map: Real-time AQI near you
Air quality in nearby cities
Mehlville, Missouri
AQI 62
Moderate
15.23μg/m³
PM2.5
62.18μg/m³
PM10
5.22ppb
O3
0.59ppb
SO2
13.32ppb
NO2
0.45ppm
CO
Affton, Missouri
AQI 60
Moderate
13.96μg/m³
PM2.5
56.94μg/m³
PM10
5.31ppb
O3
0.58ppb
SO2
14.39ppb
NO2
0.46ppm
CO
Concord, Missouri
AQI 58
Moderate
12.98μg/m³
PM2.5
40.77μg/m³
PM10
7.29ppb
O3
0.67ppb
SO2
10.97ppb
NO2
0.45ppm
CO
Oakville, Missouri
AQI 60
Moderate
13.53μg/m³
PM2.5
46.41μg/m³
PM10
7.37ppb
O3
0.71ppb
SO2
10.68ppb
NO2
0.45ppm
CO
Crestwood, Missouri
AQI 56
Moderate
12.20μg/m³
PM2.5
44.56μg/m³
PM10
7.78ppb
O3
0.65ppb
SO2
11.69ppb
NO2
0.46ppm
CO
Webster Groves, Missouri
AQI 56
Moderate
11.59μg/m³
PM2.5
48.28μg/m³
PM10
6.43ppb
O3
0.58ppb
SO2
14.36ppb
NO2
0.47ppm
CO
How accurate is Missouri, USA air quality data?
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
Frequently asked questions
How frequently is the air quality data for Lemay, Missouri updated?
Air quality data for Lemay, Missouri is updated on an hourly basis.
When did Lemay, Missouri experience the worst air quality in the last 24 hours?
The worst air quality in Lemay, Missouri was recorded at 09:00:00 on 2025-06-06.
When did Lemay, Missouri have its best air quality in the last 24 hours?
The best air quality in Lemay, Missouri was recorded at 02:00:00 on 2025-06-05.
What is the real-time air quality index for Lemay, Missouri?
The real-time air quality index in Lemay, Missouri is 64, currently categorized as Moderate.
Which pollutant is found most often in Lemay, Missouri?
The most common pollutant in Lemay, Missouri is PM2.5.
What can I do if the air quality in Lemay, Missouri is poor?
If the air quality in Lemay, Missouri is poor, limit outdoor activities and use a mask to safeguard your health.
What are the current PM2.5 levels in Lemay, Missouri?
The measured PM2.5 levels in Lemay, Missouri at present are 15.677 μg/m3.
What are the current PM10 levels at Lemay, Missouri?
The current PM10 levels in Lemay, Missouri are 66.256 μg/m3.
What are the current carbon monoxide (CO) levels at Lemay, Missouri?
The current carbon monoxide (CO) level in Lemay, Missouri is 0.452 ppm.
What are the current sulfur dioxide (SO2) levels at Lemay, Missouri?
The current sulfur dioxide (SO2) levels in Lemay, Missouri are 0.581 ppb.
What are the current ozone (O3) levels at Lemay, Missouri?
The current ozone (O3) levels at Lemay, Missouri is 4.793 ppm.
What are the current nitrogen dioxide (NO2) levels at Lemay, Missouri?
The current nitrogen dioxide (NO2) levels at Lemay, Missouri is 13.871 ppb.
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