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

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.00 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.00 μg/m³
0
55
155
255
425
605+
21.88 ppb
0
55
71
86
201
201+
0.37 ppb
0
36
76
186
605
1005+
4.01 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Shelton, Washington
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AQI 38
Good
6.77μg/m³
PM2.5
33.52μg/m³
PM10
23.16ppb
O3
0.35ppb
SO2
3.15ppb
NO2
0.16ppm
CO
AQI 38
Good
6.74μg/m³
PM2.5
33.37μg/m³
PM10
23.23ppb
O3
0.35ppb
SO2
3.15ppb
NO2
0.16ppm
CO
AQI 38
Good
7.44μg/m³
PM2.5
37.13μg/m³
PM10
23.02ppb
O3
0.35ppb
SO2
3.16ppb
NO2
0.16ppm
CO
AQI 44
Good
7.75μg/m³
PM2.5
37.71μg/m³
PM10
23.12ppb
O3
0.34ppb
SO2
2.75ppb
NO2
0.15ppm
CO
AQI 44
Good
7.75μg/m³
PM2.5
37.71μg/m³
PM10
23.12ppb
O3
0.34ppb
SO2
2.75ppb
NO2
0.15ppm
CO
AQI 44
Good
7.97μg/m³
PM2.5
39.67μg/m³
PM10
22.58ppb
O3
0.34ppb
SO2
2.78ppb
NO2
0.17ppm
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 Shelton, Washington are available every hour.
Shelton, Washington experienced its worst air quality at 02:00:00, 2026-07-23.
The best air quality in Shelton, Washington was observed at 07:00:00 on 2026-07-23.
The air quality in Shelton, Washington right now is Good, with an AQI of 20.
In Shelton, Washington, O3 is the most frequently found pollutant.
When air quality in Shelton, Washington is compromised, staying indoors and wearing a mask can reduce health risks.
Shelton, Washington currently has a PM2.5 concentration of 3 μg/m3.
Shelton, Washington currently has a PM10 concentration of 12 μg/m3.
The current carbon monoxide (CO) level in Shelton, Washington is 0.157 ppm.
The current sulfur dioxide (SO2) concentration in Shelton, Washington is 0.373 ppb.
Shelton, Washington currently has an ozone (O3) concentration of 21.876 ppm.
The current level of nitrogen dioxide (NO2) in Shelton, Washington is 4.015 ppb.
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