Current air quality index in Pasco, Washington today
Stay updated with real-time air quality in Pasco, 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)
20
Good
Pasco, Washington
Last updated: ... (Local time)
Common air pollutants in Pasco, Washington
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
2.33 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
8.73 μg/m³
0
55
155
255
425
605+
Ozone (O3)
21.52 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.24 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
3.10 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Pasco, Washington
Pasco, Washington
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Air quality in nearby cities
Kennewick, Washington
AQI 20
Good
2.32μg/m³
PM2.5
8.95μg/m³
PM10
21.56ppb
O3
0.24ppb
SO2
3.08ppb
NO2
0.20ppm
CO
Richland, Washington
AQI 19
Good
2.36μg/m³
PM2.5
9.51μg/m³
PM10
20.81ppb
O3
0.24ppb
SO2
3.52ppb
NO2
0.20ppm
CO
West Richland, Washington
AQI 17
Good
2.89μg/m³
PM2.5
15.29μg/m³
PM10
18.36ppb
O3
0.24ppb
SO2
6.96ppb
NO2
0.20ppm
CO
Hermiston, Oregon
AQI 22
Good
3.88μg/m³
PM2.5
16.88μg/m³
PM10
23.98ppb
O3
0.24ppb
SO2
3.02ppb
NO2
0.20ppm
CO
Walla Walla, Washington
AQI 22
Good
3.60μg/m³
PM2.5
16.00μg/m³
PM10
21.11ppb
O3
0.24ppb
SO2
2.40ppb
NO2
0.20ppm
CO
Grandview, Washington
AQI 38
Good
6.90μg/m³
PM2.5
31.00μg/m³
PM10
23.34ppb
O3
0.25ppb
SO2
4.58ppb
NO2
0.20ppm
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 Pasco, Washington get updated?
Air quality updates for Pasco, Washington are available every hour.
What time in the past 24 hours saw the poorest air quality in Pasco, Washington?
Pasco, Washington experienced its worst air quality at 12:00:00, 2026-09-07.
When was air quality in Pasco, Washington the best over the past 24 hours?
The best air quality in Pasco, Washington was observed at 01:00:00 on 2026-09-06.
What is the air quality in Pasco, Washington right now?
The air quality in Pasco, Washington right now is Good, with an AQI of 20.
What pollutant is most frequently found in Pasco, Washington?
In Pasco, Washington, O3 is the most frequently found pollutant.
What can I do if the air quality in Pasco, Washington is poor?
When air quality in Pasco, Washington is compromised, staying indoors and wearing a mask can reduce health risks.
What is the PM2.5 concentration in Pasco, Washington right now?
Pasco, Washington currently has a PM2.5 concentration of 2.326 μg/m3.
What is the current level of PM10 in Pasco, Washington?
Pasco, Washington currently has a PM10 concentration of 8.731 μg/m3.
What is the current level of carbon monoxide (CO) in Pasco, Washington?
The current carbon monoxide (CO) level in Pasco, Washington is 0.199 ppm.
What is the current level of sulfur dioxide (SO2) in Pasco, Washington?
The current sulfur dioxide (SO2) concentration in Pasco, Washington is 0.242 ppb.
What is the current level of ozone (O3) in Pasco, Washington?
Pasco, Washington currently has an ozone (O3) concentration of 21.517 ppm.
What is the current level of nitrogen dioxide (NO2) in Pasco, Washington?
The current level of nitrogen dioxide (NO2) in Pasco, Washington is 3.098 ppb.
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