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)
26
Good
Pierre, South Dakota
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.42 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.02 μg/m³
0
55
155
255
425
605+
27.75 ppb
0
55
71
86
201
201+
1.14 ppb
0
36
76
186
605
1005+
5.94 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Pierre, South Dakota
Pierre, South Dakota
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AQI 27
Good
5.21μg/m³
PM2.5
22.34μg/m³
PM10
14.65ppb
O3
0.03ppb
SO2
1.69ppb
NO2
0.19ppm
CO
AQI 20
Good
3.20μg/m³
PM2.5
7.00μg/m³
PM10
21.62ppb
O3
1.03ppb
SO2
7.50ppb
NO2
0.22ppm
CO
AQI 38
Good
6.74μg/m³
PM2.5
30.07μg/m³
PM10
16.21ppb
O3
0.02ppb
SO2
1.88ppb
NO2
0.20ppm
CO
AQI 22
Good
4.05μg/m³
PM2.5
17.17μg/m³
PM10
20.83ppb
O3
1.02ppb
SO2
1.81ppb
NO2
0.16ppm
CO
AQI 38
Good
6.75μg/m³
PM2.5
29.54μg/m³
PM10
19.23ppb
O3
1.03ppb
SO2
2.80ppb
NO2
0.16ppm
CO
AQI 22
Good
3.66μg/m³
PM2.5
15.98μg/m³
PM10
12.73ppb
O3
0.07ppb
SO2
2.06ppb
NO2
0.18ppm
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 2025-12-06.
In the last 24 hrs, the best air quality in Pierre, South Dakota was observed at 01:00:00 on 2025-12-07.
The current air quality in Pierre, South Dakota is 26, 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 2.419 μg/m3.
The current PM10 concentration at Pierre, South Dakota is 10.02 μg/m3.
The current carbon monoxide (CO) concentration at Pierre, South Dakota is 0.16 ppm.
The current sulfur dioxide (SO2) concentration at Pierre, South Dakota is 1.137 ppb.
The current ozone (O3) concentration at Pierre, South Dakota is 27.748 ppm.
The current nitrogen dioxide (NO2) concentration at Pierre, South Dakota is 5.941 ppb.
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