Stay updated with real-time air quality in Union HillNovelty Hill, 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)
24
Good
Union HillNovelty Hill, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.57 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
6.39 μg/m³
0
55
155
255
425
605+
25.95 ppb
0
55
71
86
201
201+
0.31 ppb
0
36
76
186
605
1005+
6.63 ppb
0
54
101
361
1250
2050+
0.11 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Union HillNovelty Hill, Washington
Union HillNovelty Hill, Washington
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AQI 27
Good
1.58μg/m³
PM2.5
6.85μg/m³
PM10
29.39ppb
O3
0.33ppb
SO2
11.61ppb
NO2
0.20ppm
CO
AQI 28
Good
1.65μg/m³
PM2.5
8.68μg/m³
PM10
30.12ppb
O3
0.33ppb
SO2
13.36ppb
NO2
0.20ppm
CO
AQI 23
Good
1.21μg/m³
PM2.5
7.20μg/m³
PM10
25.44ppb
O3
0.34ppb
SO2
12.69ppb
NO2
0.20ppm
CO
AQI 26
Good
3.37μg/m³
PM2.5
15.43μg/m³
PM10
27.59ppb
O3
0.33ppb
SO2
11.86ppb
NO2
0.20ppm
CO
AQI 23
Good
2.35μg/m³
PM2.5
12.26μg/m³
PM10
25.32ppb
O3
0.34ppb
SO2
12.91ppb
NO2
0.20ppm
CO
AQI 24
Good
1.94μg/m³
PM2.5
11.26μg/m³
PM10
25.87ppb
O3
0.34ppb
SO2
13.28ppb
NO2
0.20ppm
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 Union Hillnovelty Hill, Washington is updated every hour.
The worst air quality in Union Hillnovelty Hill, Washington in the last 24 hours was observed at 03:00:00 on 2025-10-24.
In the last 24 hrs, the best air quality in Union Hillnovelty Hill, Washington was observed at 08:00:00 on 2025-10-24.
The current air quality in Union Hillnovelty Hill, Washington is 28, categorized as Good based on real-time data.
The most common pollutant in Union Hillnovelty Hill, Washington is O3.
If the air quality in Union Hillnovelty Hill, Washington is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Union Hillnovelty Hill, Washington is 1.492 μg/m3.
The current PM10 concentration at Union Hillnovelty Hill, Washington is 6.265 μg/m3.
The current carbon monoxide (CO) concentration at Union Hillnovelty Hill, Washington is 0.133 ppm.
The current sulfur dioxide (SO2) concentration at Union Hillnovelty Hill, Washington is 0.329 ppb.
The current ozone (O3) concentration at Union Hillnovelty Hill, Washington is 30.083 ppm.
The current nitrogen dioxide (NO2) concentration at Union Hillnovelty Hill, Washington is 9.278 ppb.
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