Stay updated with real-time air quality in Hilo, Hawaii 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)
33
Good
Hilo, Hawaii
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.09 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.46 μg/m³
0
55
155
255
425
605+
35.90 ppb
0
55
71
86
201
201+
10.80 ppb
0
36
76
186
605
1005+
3.76 ppb
0
54
101
361
1250
2050+
0.36 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Hilo, Hawaii
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AQI 33
Good
4.99μg/m³
PM2.5
21.25μg/m³
PM10
35.84ppb
O3
8.54ppb
SO2
3.75ppb
NO2
0.36ppm
CO
AQI 33
Good
4.16μg/m³
PM2.5
18.16μg/m³
PM10
36.23ppb
O3
14.63ppb
SO2
3.87ppb
NO2
0.37ppm
CO
AQI 49
Good
9.08μg/m³
PM2.5
40.96μg/m³
PM10
36.11ppb
O3
12.43ppb
SO2
3.87ppb
NO2
0.37ppm
CO
AQI 34
Good
4.48μg/m³
PM2.5
19.38μg/m³
PM10
36.64ppb
O3
16.22ppb
SO2
4.03ppb
NO2
0.38ppm
CO
AQI 34
Good
5.44μg/m³
PM2.5
23.73μg/m³
PM10
36.89ppb
O3
16.26ppb
SO2
4.04ppb
NO2
0.38ppm
CO
AQI 34
Good
5.45μg/m³
PM2.5
23.75μg/m³
PM10
36.89ppb
O3
16.26ppb
SO2
4.04ppb
NO2
0.38ppm
CO
Air quality data and pollutant measurements for Hawaii, 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 Hilo, Hawaii is updated every hour.
The worst air quality in Hilo, Hawaii in the last 24 hours was observed at 02:00:00 on 2026-03-31.
In the last 24 hrs, the best air quality in Hilo, Hawaii was observed at 03:00:00 on 2026-03-31.
The current air quality in Hilo, Hawaii is 33, categorized as Good based on real-time data.
The most common pollutant in Hilo, Hawaii is O3.
If the air quality in Hilo, Hawaii is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Hilo, Hawaii is 6.094 μg/m3.
The current PM10 concentration at Hilo, Hawaii is 27.463 μg/m3.
The current carbon monoxide (CO) concentration at Hilo, Hawaii is 0.362 ppm.
The current sulfur dioxide (SO2) concentration at Hilo, Hawaii is 10.804 ppb.
The current ozone (O3) concentration at Hilo, Hawaii is 35.901 ppm.
The current nitrogen dioxide (NO2) concentration at Hilo, Hawaii is 3.763 ppb.
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