Stay updated with real-time air quality in Mountlake Terrace, 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)
69
Moderate
Mountlake Terrace, Washington
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
19.07 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
40.44 μg/m³
0
55
155
255
425
605+
18.77 ppb
0
55
71
86
201
201+
0.67 ppb
0
36
76
186
605
1005+
22.18 ppb
0
54
101
361
1250
2050+
0.30 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Mountlake Terrace, Washington
Mountlake Terrace, Washington
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AQI 73
Moderate
20.64μg/m³
PM2.5
89.33μg/m³
PM10
26.18ppb
O3
0.48ppb
SO2
15.90ppb
NO2
0.24ppm
CO
AQI 60
Moderate
13.91μg/m³
PM2.5
57.23μg/m³
PM10
24.05ppb
O3
0.49ppb
SO2
14.83ppb
NO2
0.24ppm
CO
AQI 66
Moderate
16.92μg/m³
PM2.5
72.59μg/m³
PM10
25.19ppb
O3
0.49ppb
SO2
14.80ppb
NO2
0.24ppm
CO
AQI 67
Moderate
18.46μg/m³
PM2.5
72.95μg/m³
PM10
25.62ppb
O3
0.49ppb
SO2
18.31ppb
NO2
0.24ppm
CO
AQI 66
Moderate
17.06μg/m³
PM2.5
73.13μg/m³
PM10
25.27ppb
O3
0.49ppb
SO2
14.88ppb
NO2
0.24ppm
CO
AQI 71
Moderate
20.31μg/m³
PM2.5
88.01μg/m³
PM10
26.21ppb
O3
0.48ppb
SO2
15.68ppb
NO2
0.24ppm
CO
Air quality data and pollutant measurements for Washington, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Mountlake Terrace, Washington is updated every hour.
The worst air quality in Mountlake Terrace, Washington in the last 24 hours was observed at 10:00:00 on 2025-09-03.
In the last 24 hrs, the best air quality in Mountlake Terrace, Washington was observed at 04:00:00 on 2025-09-03.
The current air quality in Mountlake Terrace, Washington is 67, categorized as Moderate based on real-time data.
The most common pollutant in Mountlake Terrace, Washington is PM2.5.
If the air quality in Mountlake Terrace, Washington is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Mountlake Terrace, Washington is 18.084 μg/m3.
The current PM10 concentration at Mountlake Terrace, Washington is 76.203 μg/m3.
The current carbon monoxide (CO) concentration at Mountlake Terrace, Washington is 0.24 ppm.
The current sulfur dioxide (SO2) concentration at Mountlake Terrace, Washington is 0.485 ppb.
The current ozone (O3) concentration at Mountlake Terrace, Washington is 25.389 ppm.
The current nitrogen dioxide (NO2) concentration at Mountlake Terrace, Washington is 15.882 ppb.
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