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)
33
Good
Pasco, Washington
Last updated: ... (Local time)
Major air pollutants in Pasco, Washington
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
5.77 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
30.97 μg/m³
0
55
155
255
425
605+
Ozone (O3)
34.81 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.69 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
3.68 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Pasco, Washington
Pasco, Washington
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Air quality in nearby cities
Kennewick, Washington
AQI 32
Good
5.06μg/m³
PM2.5
33.52μg/m³
PM10
34.52ppb
O3
3.85ppb
SO2
3.78ppb
NO2
0.16ppm
CO
Richland, Washington
AQI 32
Good
4.63μg/m³
PM2.5
35.40μg/m³
PM10
33.60ppb
O3
3.81ppb
SO2
3.76ppb
NO2
0.16ppm
CO
West Richland, Washington
AQI 33
Good
5.41μg/m³
PM2.5
24.09μg/m³
PM10
36.27ppb
O3
3.79ppb
SO2
3.74ppb
NO2
0.16ppm
CO
Hermiston, Oregon
AQI 35
Good
6.17μg/m³
PM2.5
28.06μg/m³
PM10
37.94ppb
O3
3.76ppb
SO2
3.90ppb
NO2
0.16ppm
CO
Walla Walla, Washington
AQI 34
Good
4.10μg/m³
PM2.5
17.99μg/m³
PM10
36.77ppb
O3
3.83ppb
SO2
2.93ppb
NO2
0.15ppm
CO
Grandview, Washington
AQI 44
Good
7.94μg/m³
PM2.5
35.42μg/m³
PM10
37.33ppb
O3
3.09ppb
SO2
4.30ppb
NO2
0.17ppm
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 09:00:00, 2025-06-06.
When was air quality in Pasco, Washington the best over the past 24 hours?
The best air quality in Pasco, Washington was observed at 03:00:00 on 2025-06-06.
What is the air quality in Pasco, Washington right now?
The air quality in Pasco, Washington right now is Good, with an AQI of 33.
What pollutant is most frequently found in Pasco, Washington?
In Pasco, Washington, PM2.5 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 5.766 μg/m3.
What is the current level of PM10 in Pasco, Washington?
Pasco, Washington currently has a PM10 concentration of 30.971 μg/m3.
What is the current level of carbon monoxide (CO) in Pasco, Washington?
The current carbon monoxide (CO) level in Pasco, Washington is 0.18 ppm.
What is the current level of sulfur dioxide (SO2) in Pasco, Washington?
The current sulfur dioxide (SO2) concentration in Pasco, Washington is 0.685 ppb.
What is the current level of ozone (O3) in Pasco, Washington?
Pasco, Washington currently has an ozone (O3) concentration of 34.811 ppm.
What is the current level of nitrogen dioxide (NO2) in Pasco, Washington?
The current level of nitrogen dioxide (NO2) in Pasco, Washington is 3.683 ppb.
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