Stay updated with real-time air quality in Richland, Washington 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)
66
Moderate
Richland, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
17.16 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
53.08 μg/m³
0
55
155
255
425
605+
43.41 ppb
0
55
71
86
201
201+
2.15 ppb
0
36
76
186
605
1005+
4.21 ppb
0
54
101
361
1250
2050+
0.33 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Richland, Washington
Richland, Washington
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AQI 62
Moderate
15.18μg/m³
PM2.5
72.34μg/m³
PM10
45.39ppb
O3
2.14ppb
SO2
3.66ppb
NO2
0.33ppm
CO
AQI 60
Moderate
13.82μg/m³
PM2.5
46.09μg/m³
PM10
43.89ppb
O3
2.17ppb
SO2
4.56ppb
NO2
0.33ppm
CO
AQI 60
Moderate
13.64μg/m³
PM2.5
45.92μg/m³
PM10
43.93ppb
O3
2.17ppb
SO2
4.59ppb
NO2
0.33ppm
CO
AQI 62
Moderate
15.39μg/m³
PM2.5
68.99μg/m³
PM10
45.86ppb
O3
0.95ppb
SO2
3.64ppb
NO2
0.18ppm
CO
AQI 60
Moderate
13.56μg/m³
PM2.5
60.95μg/m³
PM10
41.06ppb
O3
2.14ppb
SO2
5.04ppb
NO2
0.32ppm
CO
AQI 62
Moderate
15.49μg/m³
PM2.5
69.00μg/m³
PM10
45.00ppb
O3
0.72ppb
SO2
3.64ppb
NO2
0.18ppm
CO
The air quality data for Washington, 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 Richland, Washington are available every hour.
Richland, Washington experienced its worst air quality at 06:00:00, 2026-07-23.
The best air quality in Richland, Washington was observed at 06:00:00 on 2026-07-23.
The air quality in Richland, Washington right now is Moderate, with an AQI of 66.
In Richland, Washington, PM2.5 is the most frequently found pollutant.
When air quality in Richland, Washington is compromised, staying indoors and wearing a mask can reduce health risks.
Richland, Washington currently has a PM2.5 concentration of 17.161 μg/m3.
Richland, Washington currently has a PM10 concentration of 53.08 μg/m3.
The current carbon monoxide (CO) level in Richland, Washington is 0.326 ppm.
The current sulfur dioxide (SO2) concentration in Richland, Washington is 2.154 ppb.
Richland, Washington currently has an ozone (O3) concentration of 43.413 ppm.
The current level of nitrogen dioxide (NO2) in Richland, Washington is 4.212 ppb.
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