Stay updated with real-time air quality in Lacey, 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)
22
Good
Lacey, Washington
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.17 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.87 μg/m³
0
55
155
255
425
605+
21.43 ppb
0
55
71
86
201
201+
0.28 ppb
0
36
76
186
605
1005+
4.90 ppb
0
54
101
361
1250
2050+
0.12 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Lacey, Washington
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AQI 17
Good
0.43μg/m³
PM2.5
1.55μg/m³
PM10
17.79ppb
O3
0.20ppb
SO2
7.98ppb
NO2
0.10ppm
CO
AQI 17
Good
0.44μg/m³
PM2.5
1.62μg/m³
PM10
17.81ppb
O3
0.20ppb
SO2
7.94ppb
NO2
0.10ppm
CO
AQI 17
Good
1.83μg/m³
PM2.5
8.92μg/m³
PM10
18.01ppb
O3
0.18ppb
SO2
8.35ppb
NO2
0.10ppm
CO
AQI 17
Good
2.06μg/m³
PM2.5
17.19μg/m³
PM10
18.07ppb
O3
0.19ppb
SO2
8.29ppb
NO2
0.10ppm
CO
AQI 16
Good
1.59μg/m³
PM2.5
6.10μg/m³
PM10
17.45ppb
O3
0.17ppb
SO2
8.17ppb
NO2
0.10ppm
CO
AQI 17
Good
2.40μg/m³
PM2.5
10.00μg/m³
PM10
17.90ppb
O3
0.22ppb
SO2
7.95ppb
NO2
0.10ppm
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 Lacey, Washington is updated every hour.
The worst air quality in Lacey, Washington in the last 24 hours was observed at 04:00:00 on 2025-07-25.
In the last 24 hrs, the best air quality in Lacey, Washington was observed at 03:00:00 on 2025-07-25.
The current air quality in Lacey, Washington is 17, categorized as Good based on real-time data.
The most common pollutant in Lacey, Washington is O3.
If the air quality in Lacey, Washington is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Lacey, Washington is 0.146 μg/m3.
The current PM10 concentration at Lacey, Washington is 0.387 μg/m3.
The current carbon monoxide (CO) concentration at Lacey, Washington is 0.1 ppm.
The current sulfur dioxide (SO2) concentration at Lacey, Washington is 0.196 ppb.
The current ozone (O3) concentration at Lacey, Washington is 17.752 ppm.
The current nitrogen dioxide (NO2) concentration at Lacey, Washington is 8.08 ppb.
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