Stay updated with real-time air quality in Shoreline, 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)
28
Good
Shoreline, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.21 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.90 μg/m³
0
55
155
255
425
605+
29.96 ppb
0
55
71
86
201
201+
0.31 ppb
0
36
76
186
605
1005+
7.38 ppb
0
54
101
361
1250
2050+
0.11 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Shoreline, Washington
Shoreline, Washington
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AQI 38
Good
7.21μg/m³
PM2.5
30.26μg/m³
PM10
15.08ppb
O3
0.26ppb
SO2
8.11ppb
NO2
0.19ppm
CO
AQI 44
Good
7.83μg/m³
PM2.5
34.03μg/m³
PM10
15.29ppb
O3
0.26ppb
SO2
8.11ppb
NO2
0.19ppm
CO
AQI 38
Good
6.78μg/m³
PM2.5
25.83μg/m³
PM10
14.61ppb
O3
0.26ppb
SO2
8.15ppb
NO2
0.19ppm
CO
AQI 44
Good
7.70μg/m³
PM2.5
33.62μg/m³
PM10
15.24ppb
O3
0.26ppb
SO2
8.00ppb
NO2
0.19ppm
CO
AQI 33
Good
6.01μg/m³
PM2.5
24.57μg/m³
PM10
14.96ppb
O3
0.27ppb
SO2
8.09ppb
NO2
0.19ppm
CO
AQI 38
Good
6.70μg/m³
PM2.5
29.00μg/m³
PM10
15.12ppb
O3
0.26ppb
SO2
7.92ppb
NO2
0.19ppm
CO
Air quality and pollutant data for Washington, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Shoreline, Washington is updated every hour for accuracy.
In the past 24 hours, the air quality in Shoreline, Washington was at its worst at 03:00:00 on 2025-10-24.
In the last 24 hours, the best air quality in Shoreline, Washington was observed at 11:00:00 on 2025-10-23.
As of now, the AQI in Shoreline, Washington is 44, indicating Good conditions.
Shoreline, Washington air has the highest levels of PM2.5.
Poor air quality in Shoreline, Washington means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Shoreline, Washington are currently 7.745 μg/m3.
The PM10 concentration in Shoreline, Washington is 29.881 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Shoreline, Washington is 0.192 ppm.
Currently, Shoreline, Washington has a sulfur dioxide (SO2) concentration of 0.251 ppb.
The current ozone (O3) level in Shoreline, Washington at the moment is 14.578 ppm.
Nitrogen dioxide (NO2) level in Shoreline, Washington at the moment is 8.148 ppb.
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