Stay updated with real-time air quality in Pierre, South Dakota 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)
36
Good
Pierre, South Dakota
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.50 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.02 μg/m³
0
55
155
255
425
605+
39.42 ppb
0
55
71
86
201
201+
1.10 ppb
0
36
76
186
605
1005+
1.27 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Pierre, South Dakota
Pierre, South Dakota
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AQI 28
Good
3.62μg/m³
PM2.5
15.87μg/m³
PM10
29.72ppb
O3
0.03ppb
SO2
0.59ppb
NO2
0.14ppm
CO
AQI 32
Good
0.80μg/m³
PM2.5
22.01μg/m³
PM10
35.23ppb
O3
1.21ppb
SO2
1.19ppb
NO2
0.32ppm
CO
AQI 30
Good
3.25μg/m³
PM2.5
14.11μg/m³
PM10
31.87ppb
O3
0.02ppb
SO2
0.67ppb
NO2
0.14ppm
CO
AQI 27
Good
3.50μg/m³
PM2.5
14.26μg/m³
PM10
29.39ppb
O3
1.24ppb
SO2
1.11ppb
NO2
0.10ppm
CO
AQI 41
Good
5.25μg/m³
PM2.5
43.91μg/m³
PM10
29.59ppb
O3
1.25ppb
SO2
1.24ppb
NO2
0.10ppm
CO
AQI 70
Moderate
5.80μg/m³
PM2.5
93.01μg/m³
PM10
25.00ppb
O3
1.17ppb
SO2
0.90ppb
NO2
0.32ppm
CO
Air quality data and pollutant measurements for South Dakota, 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 Pierre, South Dakota is updated every hour.
The worst air quality in Pierre, South Dakota in the last 24 hours was observed at 03:00:00 on 2026-04-23.
In the last 24 hrs, the best air quality in Pierre, South Dakota was observed at 09:00:00 on 2026-04-23.
The current air quality in Pierre, South Dakota is 36, categorized as Good based on real-time data.
The most common pollutant in Pierre, South Dakota is O3.
If the air quality in Pierre, South Dakota is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Pierre, South Dakota is 4.497 μg/m3.
The current PM10 concentration at Pierre, South Dakota is 20.022 μg/m3.
The current carbon monoxide (CO) concentration at Pierre, South Dakota is 0.141 ppm.
The current sulfur dioxide (SO2) concentration at Pierre, South Dakota is 1.103 ppb.
The current ozone (O3) concentration at Pierre, South Dakota is 39.416 ppm.
The current nitrogen dioxide (NO2) concentration at Pierre, South Dakota is 1.268 ppb.
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