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)
38
Good
Pierre, South Dakota
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.60 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
29.97 μg/m³
0
55
155
255
425
605+
37.60 ppb
0
55
71
86
201
201+
1.03 ppb
0
36
76
186
605
1005+
1.32 ppb
0
54
101
361
1250
2050+
0.12 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Pierre, South Dakota
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AQI 32
Good
4.06μg/m³
PM2.5
17.66μg/m³
PM10
34.72ppb
O3
0.20ppb
SO2
0.48ppb
NO2
0.13ppm
CO
AQI 31
Good
4.20μg/m³
PM2.5
26.00μg/m³
PM10
33.23ppb
O3
0.84ppb
SO2
1.52ppb
NO2
0.24ppm
CO
AQI 35
Good
2.77μg/m³
PM2.5
11.19μg/m³
PM10
38.09ppb
O3
0.14ppb
SO2
0.33ppb
NO2
0.12ppm
CO
AQI 44
Good
3.84μg/m³
PM2.5
19.91μg/m³
PM10
46.80ppb
O3
1.19ppb
SO2
1.21ppb
NO2
0.10ppm
CO
AQI 44
Good
3.49μg/m³
PM2.5
22.31μg/m³
PM10
46.92ppb
O3
1.19ppb
SO2
1.20ppb
NO2
0.10ppm
CO
AQI 26
Good
3.80μg/m³
PM2.5
28.00μg/m³
PM10
23.00ppb
O3
0.66ppb
SO2
2.95ppb
NO2
0.24ppm
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 11:00:00 on 2026-03-12.
In the last 24 hrs, the best air quality in Pierre, South Dakota was observed at 02:00:00 on 2026-03-12.
The current air quality in Pierre, South Dakota is 38, categorized as Good based on real-time data.
The most common pollutant in Pierre, South Dakota is PM2.5.
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 6.597 μg/m3.
The current PM10 concentration at Pierre, South Dakota is 29.966 μg/m3.
The current carbon monoxide (CO) concentration at Pierre, South Dakota is 0.121 ppm.
The current sulfur dioxide (SO2) concentration at Pierre, South Dakota is 1.034 ppb.
The current ozone (O3) concentration at Pierre, South Dakota is 37.602 ppm.
The current nitrogen dioxide (NO2) concentration at Pierre, South Dakota is 1.322 ppb.
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