Stay updated with real-time air quality in Ferndale, 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)
21
Good
Ferndale, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.17 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
9.13 μg/m³
0
55
155
255
425
605+
22.96 ppb
0
55
71
86
201
201+
0.15 ppb
0
36
76
186
605
1005+
5.77 ppb
0
54
101
361
1250
2050+
0.13 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Ferndale, Washington
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AQI 25
Good
3.01μg/m³
PM2.5
13.58μg/m³
PM10
27.13ppb
O3
0.18ppb
SO2
5.02ppb
NO2
0.10ppm
CO
AQI 22
Good
1.38μg/m³
PM2.5
5.54μg/m³
PM10
24.09ppb
O3
0.16ppb
SO2
4.01ppb
NO2
0.10ppm
CO
AQI 24
Good
1.95μg/m³
PM2.5
8.87μg/m³
PM10
25.57ppb
O3
0.18ppb
SO2
4.85ppb
NO2
0.10ppm
CO
AQI 19
Good
0.96μg/m³
PM2.5
3.73μg/m³
PM10
21.24ppb
O3
0.17ppb
SO2
5.41ppb
NO2
0.10ppm
CO
AQI 22
Good
1.86μg/m³
PM2.5
8.21μg/m³
PM10
23.54ppb
O3
0.17ppb
SO2
4.32ppb
NO2
0.10ppm
CO
AQI 22
Good
1.96μg/m³
PM2.5
8.64μg/m³
PM10
23.60ppb
O3
0.17ppb
SO2
4.47ppb
NO2
0.10ppm
CO
Air quality measurements for Washington, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Ferndale, Washington is updated on an hourly basis.
The worst air quality in Ferndale, Washington was recorded at 02:00:00 on 2026-07-12.
The best air quality in Ferndale, Washington was recorded at 08:00:00 on 2026-07-12.
The real-time air quality index in Ferndale, Washington is 21, currently categorized as Good.
The most common pollutant in Ferndale, Washington is O3.
If the air quality in Ferndale, Washington is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Ferndale, Washington at present are 2.165 μg/m3.
The current PM10 levels in Ferndale, Washington are 9.126 μg/m3.
The current carbon monoxide (CO) level in Ferndale, Washington is 0.129 ppm.
The current sulfur dioxide (SO2) levels in Ferndale, Washington are 0.148 ppb.
The current ozone (O3) levels at Ferndale, Washington is 22.964 ppm.
The current nitrogen dioxide (NO2) levels at Ferndale, Washington is 5.772 ppb.
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