Stay updated with real-time air quality in Washington, 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)
62
Moderate
Washington, Missouri
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
15.23 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
67.77 μg/m³
0
55
155
255
425
605+
51.06 ppb
0
55
71
86
201
201+
1.56 ppb
0
36
76
186
605
1005+
4.49 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Washington, Missouri
Scroll To Air Quality MapLoading...
AQI 64
Moderate
6.93μg/m³
PM2.5
38.30μg/m³
PM10
58.54ppb
O3
1.59ppb
SO2
4.56ppb
NO2
0.19ppm
CO
AQI 51
Moderate
6.50μg/m³
PM2.5
48.23μg/m³
PM10
55.39ppb
O3
1.44ppb
SO2
4.70ppb
NO2
0.19ppm
CO
AQI 61
Moderate
9.44μg/m³
PM2.5
49.36μg/m³
PM10
58.21ppb
O3
1.51ppb
SO2
4.70ppb
NO2
0.19ppm
CO
AQI 61
Moderate
8.82μg/m³
PM2.5
45.10μg/m³
PM10
57.71ppb
O3
1.49ppb
SO2
4.64ppb
NO2
0.19ppm
CO
AQI 54
Moderate
6.33μg/m³
PM2.5
52.53μg/m³
PM10
56.35ppb
O3
1.50ppb
SO2
4.87ppb
NO2
0.19ppm
CO
AQI 61
Moderate
7.36μg/m³
PM2.5
38.72μg/m³
PM10
58.29ppb
O3
1.45ppb
SO2
4.73ppb
NO2
0.19ppm
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 Washington, Missouri is updated every hour.
The worst air quality in Washington, Missouri in the last 24 hours was observed at 05:00:00 on 2026-10-22.
In the last 24 hrs, the best air quality in Washington, Missouri was observed at 01:00:00 on 2026-10-22.
The current air quality in Washington, Missouri is 64, categorized as Moderate based on real-time data.
The most common pollutant in Washington, Missouri is O3.
If the air quality in Washington, Missouri is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Washington, Missouri is 12.783 μg/m3.
The current PM10 concentration at Washington, Missouri is 67.771 μg/m3.
The current carbon monoxide (CO) concentration at Washington, Missouri is 0.191 ppm.
The current sulfur dioxide (SO2) concentration at Washington, Missouri is 1.569 ppb.
The current ozone (O3) concentration at Washington, Missouri is 58.551 ppm.
The current nitrogen dioxide (NO2) concentration at Washington, Missouri is 4.607 ppb.
All Rights Reserved © Ambee Inc. 2025