Stay updated with real-time air quality in Hazelwood, 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)
49
Good
Hazelwood, Missouri
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
9.41 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
44.42 μg/m³
0
55
155
255
425
605+
7.59 ppb
0
55
71
86
201
201+
0.56 ppb
0
36
76
186
605
1005+
13.67 ppb
0
54
101
361
1250
2050+
0.42 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Hazelwood, Missouri
Hazelwood, Missouri
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AQI 52
Moderate
10.30μg/m³
PM2.5
50.24μg/m³
PM10
8.53ppb
O3
0.58ppb
SO2
13.70ppb
NO2
0.42ppm
CO
AQI 49
Good
9.31μg/m³
PM2.5
39.94μg/m³
PM10
5.65ppb
O3
0.48ppb
SO2
13.89ppb
NO2
0.41ppm
CO
AQI 52
Moderate
9.75μg/m³
PM2.5
45.97μg/m³
PM10
7.15ppb
O3
0.56ppb
SO2
15.22ppb
NO2
0.43ppm
CO
AQI 52
Moderate
9.81μg/m³
PM2.5
36.28μg/m³
PM10
3.66ppb
O3
0.41ppb
SO2
18.49ppb
NO2
0.40ppm
CO
AQI 49
Good
9.25μg/m³
PM2.5
40.72μg/m³
PM10
5.41ppb
O3
0.53ppb
SO2
17.09ppb
NO2
0.44ppm
CO
AQI 52
Moderate
10.50μg/m³
PM2.5
51.22μg/m³
PM10
8.77ppb
O3
0.58ppb
SO2
13.81ppb
NO2
0.42ppm
CO
Air quality data and pollutant measurements for Missouri, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Hazelwood, Missouri is updated every hour.
The worst air quality in Hazelwood, Missouri in the last 24 hours was observed at 03:00:00 on 2025-06-05.
In the last 24 hrs, the best air quality in Hazelwood, Missouri was observed at 11:00:00 on 2025-06-05.
The current air quality in Hazelwood, Missouri is 49, categorized as Good based on real-time data.
The most common pollutant in Hazelwood, Missouri is PM2.5.
If the air quality in Hazelwood, Missouri is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Hazelwood, Missouri is 9.41 μg/m3.
The current PM10 concentration at Hazelwood, Missouri is 44.421 μg/m3.
The current carbon monoxide (CO) concentration at Hazelwood, Missouri is 0.42 ppm.
The current sulfur dioxide (SO2) concentration at Hazelwood, Missouri is 0.561 ppb.
The current ozone (O3) concentration at Hazelwood, Missouri is 7.593 ppm.
The current nitrogen dioxide (NO2) concentration at Hazelwood, Missouri is 13.668 ppb.
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