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)
37
Good
Pierre, South Dakota
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.21 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
9.03 μg/m³
0
55
155
255
425
605+
39.54 ppb
0
55
71
86
201
201+
1.19 ppb
0
36
76
186
605
1005+
0.93 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Pierre, South Dakota
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AQI 36
Good
2.50μg/m³
PM2.5
10.00μg/m³
PM10
38.88ppb
O3
0.24ppb
SO2
0.36ppb
NO2
0.13ppm
CO
AQI 30
Good
1.30μg/m³
PM2.5
10.00μg/m³
PM10
31.57ppb
O3
1.07ppb
SO2
0.84ppb
NO2
0.28ppm
CO
AQI 40
Good
2.43μg/m³
PM2.5
10.00μg/m³
PM10
43.19ppb
O3
0.18ppb
SO2
0.47ppb
NO2
0.13ppm
CO
AQI 29
Good
3.11μg/m³
PM2.5
18.01μg/m³
PM10
30.94ppb
O3
1.20ppb
SO2
1.02ppb
NO2
0.12ppm
CO
AQI 28
Good
2.16μg/m³
PM2.5
18.05μg/m³
PM10
30.38ppb
O3
1.20ppb
SO2
1.02ppb
NO2
0.12ppm
CO
AQI 22
Good
3.90μg/m³
PM2.5
10.00μg/m³
PM10
24.00ppb
O3
4.23ppb
SO2
2.75ppb
NO2
0.28ppm
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 05:00:00 on 2026-03-09.
In the last 24 hrs, the best air quality in Pierre, South Dakota was observed at 08:00:00 on 2026-03-09.
The current air quality in Pierre, South Dakota is 37, 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 2.206 μg/m3.
The current PM10 concentration at Pierre, South Dakota is 9.025 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 1.189 ppb.
The current ozone (O3) concentration at Pierre, South Dakota is 39.544 ppm.
The current nitrogen dioxide (NO2) concentration at Pierre, South Dakota is 0.934 ppb.
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