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)
22
Good
Union HillNovelty Hill, Washington
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.16 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.60 μg/m³
0
55
155
255
425
605+
12.02 ppb
0
55
71
86
201
201+
0.42 ppb
0
36
76
186
605
1005+
6.16 ppb
0
54
101
361
1250
2050+
0.17 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 22
Good
4.16μg/m³
PM2.5
18.60μg/m³
PM10
12.02ppb
O3
0.42ppb
SO2
6.16ppb
NO2
0.17ppm
CO
AQI 22
Good
3.51μg/m³
PM2.5
15.42μg/m³
PM10
18.34ppb
O3
0.45ppb
SO2
6.16ppb
NO2
0.17ppm
CO
AQI 22
Good
3.78μg/m³
PM2.5
16.10μg/m³
PM10
17.78ppb
O3
0.46ppb
SO2
6.16ppb
NO2
0.16ppm
CO
AQI 56
Moderate
10.70μg/m³
PM2.5
65.69μg/m³
PM10
12.11ppb
O3
0.42ppb
SO2
6.22ppb
NO2
0.17ppm
CO
AQI 22
Good
3.90μg/m³
PM2.5
16.42μg/m³
PM10
17.40ppb
O3
0.45ppb
SO2
6.02ppb
NO2
0.16ppm
CO
AQI 22
Good
4.18μg/m³
PM2.5
15.84μg/m³
PM10
17.64ppb
O3
0.46ppb
SO2
6.00ppb
NO2
0.15ppm
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 07:00:00 on 2026-09-07.
In the last 24 hrs, the best air quality in Union Hillnovelty Hill, Washington was observed at 11:00:00 on 2026-09-07.
The current air quality in Union Hillnovelty Hill, Washington is 22, categorized as Good 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 4.156 μg/m3.
The current PM10 concentration at Union Hillnovelty Hill, Washington is 18.598 μg/m3.
The current carbon monoxide (CO) concentration at Union Hillnovelty Hill, Washington is 0.166 ppm.
The current sulfur dioxide (SO2) concentration at Union Hillnovelty Hill, Washington is 0.422 ppb.
The current ozone (O3) concentration at Union Hillnovelty Hill, Washington is 12.022 ppm.
The current nitrogen dioxide (NO2) concentration at Union Hillnovelty Hill, Washington is 6.159 ppb.
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