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)
62
Moderate
Union HillNovelty Hill, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
14.82 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
44.80 μg/m³
0
55
155
255
425
605+
10.44 ppb
0
55
71
86
201
201+
0.15 ppb
0
36
76
186
605
1005+
15.98 ppb
0
54
101
361
1250
2050+
0.20 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 58
Moderate
13.40μg/m³
PM2.5
49.67μg/m³
PM10
12.55ppb
O3
0.16ppb
SO2
18.77ppb
NO2
0.20ppm
CO
AQI 52
Moderate
9.65μg/m³
PM2.5
50.60μg/m³
PM10
11.42ppb
O3
0.16ppb
SO2
18.41ppb
NO2
0.19ppm
CO
AQI 44
Good
8.27μg/m³
PM2.5
36.72μg/m³
PM10
13.62ppb
O3
0.17ppb
SO2
19.67ppb
NO2
0.19ppm
CO
AQI 51
Moderate
8.22μg/m³
PM2.5
56.12μg/m³
PM10
10.32ppb
O3
0.16ppb
SO2
18.77ppb
NO2
0.20ppm
CO
AQI 49
Good
8.64μg/m³
PM2.5
32.11μg/m³
PM10
14.96ppb
O3
0.17ppb
SO2
19.11ppb
NO2
0.20ppm
CO
AQI 49
Good
8.58μg/m³
PM2.5
30.19μg/m³
PM10
14.72ppb
O3
0.18ppb
SO2
19.98ppb
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 06:00:00 on 2026-07-21.
In the last 24 hrs, the best air quality in Union Hillnovelty Hill, Washington was observed at 01:00:00 on 2026-07-20.
The current air quality in Union Hillnovelty Hill, Washington is 62, categorized as Moderate based on real-time data.
The most common pollutant in Union Hillnovelty Hill, Washington is PM2.5.
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 14.819 μg/m3.
The current PM10 concentration at Union Hillnovelty Hill, Washington is 44.801 μg/m3.
The current carbon monoxide (CO) concentration at Union Hillnovelty Hill, Washington is 0.197 ppm.
The current sulfur dioxide (SO2) concentration at Union Hillnovelty Hill, Washington is 0.155 ppb.
The current ozone (O3) concentration at Union Hillnovelty Hill, Washington is 10.443 ppm.
The current nitrogen dioxide (NO2) concentration at Union Hillnovelty Hill, Washington is 15.978 ppb.
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