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)
45
Good
Pierre, South Dakota
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.49 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.00 μg/m³
0
55
155
255
425
605+
49.07 ppb
0
55
71
86
201
201+
0.09 ppb
0
36
76
186
605
1005+
2.20 ppb
0
54
101
361
1250
2050+
0.11 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 24
Good
4.21μg/m³
PM2.5
18.54μg/m³
PM10
26.40ppb
O3
0.30ppb
SO2
2.48ppb
NO2
0.13ppm
CO
AQI 26
Good
4.40μg/m³
PM2.5
19.08μg/m³
PM10
28.35ppb
O3
0.25ppb
SO2
2.33ppb
NO2
0.13ppm
CO
AQI 23
Good
3.33μg/m³
PM2.5
14.84μg/m³
PM10
25.10ppb
O3
0.28ppb
SO2
2.71ppb
NO2
0.12ppm
CO
AQI 39
Good
4.71μg/m³
PM2.5
18.70μg/m³
PM10
42.33ppb
O3
1.28ppb
SO2
1.27ppb
NO2
0.15ppm
CO
AQI 40
Good
4.55μg/m³
PM2.5
16.28μg/m³
PM10
43.06ppb
O3
1.28ppb
SO2
1.27ppb
NO2
0.15ppm
CO
AQI 33
Good
6.40μg/m³
PM2.5
13.00μg/m³
PM10
28.00ppb
O3
1.26ppb
SO2
3.11ppb
NO2
0.22ppm
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 09:00:00 on 2026-06-07.
In the last 24 hrs, the best air quality in Pierre, South Dakota was observed at 11:00:00 on 2026-06-07.
The current air quality in Pierre, South Dakota is 45, 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 4.494 μg/m3.
The current PM10 concentration at Pierre, South Dakota is 19.001 μg/m3.
The current carbon monoxide (CO) concentration at Pierre, South Dakota is 0.106 ppm.
The current sulfur dioxide (SO2) concentration at Pierre, South Dakota is 0.086 ppb.
The current ozone (O3) concentration at Pierre, South Dakota is 49.069 ppm.
The current nitrogen dioxide (NO2) concentration at Pierre, South Dakota is 2.201 ppb.
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