Current air quality index in Richland, Washington today
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)
31
Good
Richland, Washington
Last updated: ... (Local time)
Common air pollutants in Richland, Washington
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
2.52 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
13.37 μg/m³
0
55
155
255
425
605+
Ozone (O3)
34.03 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
1.04 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
5.12 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Richland, Washington
Richland, Washington
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Air quality in nearby cities
West Richland, Washington
AQI 30
Good
1.90μg/m³
PM2.5
9.53μg/m³
PM10
31.68ppb
O3
1.04ppb
SO2
4.92ppb
NO2
0.14ppm
CO
Kennewick, Washington
AQI 32
Good
2.64μg/m³
PM2.5
11.87μg/m³
PM10
34.89ppb
O3
1.05ppb
SO2
5.30ppb
NO2
0.14ppm
CO
Pasco, Washington
AQI 32
Good
2.64μg/m³
PM2.5
11.89μg/m³
PM10
34.75ppb
O3
1.06ppb
SO2
5.30ppb
NO2
0.14ppm
CO
Grandview, Washington
AQI 26
Good
1.50μg/m³
PM2.5
6.42μg/m³
PM10
27.89ppb
O3
0.80ppb
SO2
4.68ppb
NO2
0.14ppm
CO
Hermiston, Oregon
AQI 37
Good
3.38μg/m³
PM2.5
14.95μg/m³
PM10
39.88ppb
O3
1.03ppb
SO2
5.57ppb
NO2
0.14ppm
CO
Sunnyside, Washington
AQI 26
Good
1.70μg/m³
PM2.5
6.99μg/m³
PM10
27.79ppb
O3
0.83ppb
SO2
4.31ppb
NO2
0.14ppm
CO
How accurate is Washington, USA air quality data?
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
Frequently asked questions
How frequently does the air quality data for Richland, Washington get updated?
Air quality updates for Richland, Washington are available every hour.
What time in the past 24 hours saw the poorest air quality in Richland, Washington?
Richland, Washington experienced its worst air quality at 03:00:00, 2026-07-13.
When was air quality in Richland, Washington the best over the past 24 hours?
The best air quality in Richland, Washington was observed at 02:00:00 on 2026-07-12.
What is the air quality in Richland, Washington right now?
The air quality in Richland, Washington right now is Good, with an AQI of 31.
What pollutant is most frequently found in Richland, Washington?
In Richland, Washington, O3 is the most frequently found pollutant.
What can I do if the air quality in Richland, Washington is poor?
When air quality in Richland, Washington is compromised, staying indoors and wearing a mask can reduce health risks.
What is the PM2.5 concentration in Richland, Washington right now?
Richland, Washington currently has a PM2.5 concentration of 2.517 μg/m3.
What is the current level of PM10 in Richland, Washington?
Richland, Washington currently has a PM10 concentration of 13.374 μg/m3.
What is the current level of carbon monoxide (CO) in Richland, Washington?
The current carbon monoxide (CO) level in Richland, Washington is 0.141 ppm.
What is the current level of sulfur dioxide (SO2) in Richland, Washington?
The current sulfur dioxide (SO2) concentration in Richland, Washington is 1.039 ppb.
What is the current level of ozone (O3) in Richland, Washington?
Richland, Washington currently has an ozone (O3) concentration of 34.03 ppm.
What is the current level of nitrogen dioxide (NO2) in Richland, Washington?
The current level of nitrogen dioxide (NO2) in Richland, Washington is 5.118 ppb.
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