What is the current concentration of PM10 in Spearfish, South Dakota?

The current PM10 concentration at Spearfish, South Dakota is 7.192 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Spearfish, South Dakota?

The current sulfur dioxide (SO2) concentration at Spearfish, South Dakota is 0.069 ppb.

What is the current concentration of ozone (O3) in Spearfish, South Dakota?

The current ozone (O3) concentration at Spearfish, South Dakota is 34.937 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Spearfish, South Dakota?

The current nitrogen dioxide (NO2) concentration at Spearfish, South Dakota is 0.55 ppb.

Spearfish, South Dakota live air quality index now

Q: What is the current concentration of PM2.5 in Spearfish, South Dakota?

The current PM2.5 concentration at Spearfish, South Dakota is 1.794 μg/m3.

Stay updated with real-time air quality in Spearfish, South Dakota featuring accurate data on AQI, PM_2.5, 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)

Good

Spearfish, South Dakota

Last updated: ... (Local time)

Major air pollutants in Spearfish, South Dakota

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

1.79 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

7.19 μg/m³

155

255

425

605+

Ozone (O₃)

34.94 ppb

201

201+

Sulfur Dioxide (SO₂)

0.07 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

0.55 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.12 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

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Spearfish, South Dakota

Scroll To Air Quality Map

Track live Spearfish, South Dakota air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-03-10T11:00:00.000Z	40 \| good	2.691 \| good	11 \| good	42.638 \| good	0.237 \| good	1.155 \| good	0.146 \| good
2026-03-10T12:00:00.000Z	37 \| good	2.93 \| good	12 \| good	39.62 \| good	0.199 \| good	0.985 \| good	0.146 \| good
2026-03-10T13:00:00.000Z	36 \| good	1.891 \| good	7.882 \| good	38.928 \| good	0.186 \| good	1.087 \| good	0.147 \| good
2026-03-10T14:00:00.000Z	37 \| good	2.941 \| good	12 \| good	40.203 \| good	0.172 \| good	1.188 \| good	0.149 \| good
2026-03-10T15:00:00.000Z	31 \| good	3.07 \| good	12.866 \| good	33.227 \| good	0.159 \| good	1.29 \| good	0.151 \| good
2026-03-10T16:00:00.000Z	33 \| good	4.878 \| good	21 \| good	35.845 \| good	0.165 \| good	1.175 \| good	0.15 \| good
2026-03-10T17:00:00.000Z	34 \| good	4.652 \| good	20.343 \| good	37.376 \| good	0.171 \| good	1.061 \| good	0.15 \| good
2026-03-10T18:00:00.000Z	38 \| good	5.021 \| good	21.808 \| good	41.356 \| good	0.178 \| good	0.946 \| good	0.149 \| good
2026-03-10T19:00:00.000Z	39 \| good	3.37 \| good	14.91 \| good	41.651 \| good	0.171 \| good	0.912 \| good	0.148 \| good
2026-03-10T20:00:00.000Z	39 \| good	3.788 \| good	16.523 \| good	42.313 \| good	0.164 \| good	0.879 \| good	0.148 \| good
2026-03-10T21:00:00.000Z	38 \| good	4.145 \| good	18.375 \| good	41.28 \| good	0.156 \| good	0.845 \| good	0.148 \| good
2026-03-10T22:00:00.000Z	38 \| good	4.119 \| good	17.969 \| good	41.45 \| good	0.156 \| good	0.904 \| good	0.148 \| good
2026-03-10T23:00:00.000Z	32 \| good	3.625 \| good	16 \| good	35.187 \| good	0.19 \| good	0.878 \| good	0.141 \| good
2026-03-11T00:00:00.000Z	32 \| good	3.622 \| good	15.969 \| good	35.34 \| good	0.182 \| good	0.905 \| good	0.14 \| good
2026-03-11T01:00:00.000Z	37 \| good	2.388 \| good	10 \| good	40.166 \| good	0.169 \| good	0.944 \| good	0.141 \| good
2026-03-11T02:00:00.000Z	37 \| good	2.54 \| good	10.059 \| good	39.534 \| good	0.156 \| good	0.983 \| good	0.141 \| good
2026-03-11T03:00:00.000Z	36 \| good	3.537 \| good	15.808 \| good	38.949 \| good	0.143 \| good	1.022 \| good	0.141 \| good
2026-03-11T04:00:00.000Z	33 \| good	3.065 \| good	12.118 \| good	35.883 \| good	0.15 \| good	1.425 \| good	0.145 \| good
2026-03-11T05:00:00.000Z	33 \| good	3.147 \| good	13.616 \| good	36.173 \| good	0.158 \| good	1.829 \| good	0.148 \| good
2026-03-11T06:00:00.000Z	35 \| good	3.058 \| good	12.929 \| good	37.965 \| good	0.165 \| good	2.233 \| good	0.152 \| good
2026-03-11T07:00:00.000Z	35 \| good	4.072 \| good	17.867 \| good	38.186 \| good	0.132 \| good	1.831 \| good	0.148 \| good
2026-03-11T08:00:00.000Z	32 \| good	3.912 \| good	16.969 \| good	35 \| good	0.1 \| good	1.429 \| good	0.145 \| good
2026-03-11T09:00:00.000Z	32 \| good	2.941 \| good	12 \| good	35.116 \| good	0.067 \| good	1.027 \| good	0.141 \| good
2026-03-11T10:00:00.000Z	34 \| good	2.502 \| good	10 \| good	37.223 \| good	0.086 \| good	0.861 \| good	0.137 \| good
2026-03-11T11:00:00.000Z	37 \| good	3.625 \| good	15.91 \| good	39.907 \| good	0.105 \| good	0.695 \| good	0.133 \| good
2026-03-11T12:00:00.000Z	33 \| good	4.354 \| good	18.969 \| good	36.409 \| good	0.137 \| good	0.498 \| good	0.121 \| good
2026-03-11T13:00:00.000Z	33 \| good	3.608 \| good	15.91 \| good	35.881 \| good	0.163 \| good	0.674 \| good	0.123 \| good
2026-03-11T14:00:00.000Z	32 \| good	3.211 \| good	13.821 \| good	35.175 \| good	0.189 \| good	0.851 \| good	0.126 \| good
2026-03-11T15:00:00.000Z	35 \| good	3.666 \| good	16 \| good	37.996 \| good	0.215 \| good	1.027 \| good	0.129 \| good
2026-03-11T16:00:00.000Z	38 \| good	4.008 \| good	17.808 \| good	40.525 \| good	0.246 \| good	0.759 \| good	0.128 \| good
2026-03-11T17:00:00.000Z	40 \| good	3.129 \| good	13.616 \| good	42.882 \| good	0.277 \| good	0.492 \| good	0.127 \| good
2026-03-11T18:00:00.000Z	40 \| good	3.605 \| good	15.91 \| good	43.315 \| good	0.309 \| good	0.224 \| good	0.126 \| good
2026-03-11T19:00:00.000Z	40 \| good	4.147 \| good	18.375 \| good	43.356 \| good	0.291 \| good	0.206 \| good	0.125 \| good
2026-03-11T20:00:00.000Z	41 \| good	3.758 \| good	16.465 \| good	44.408 \| good	0.274 \| good	0.188 \| good	0.125 \| good
2026-03-11T21:00:00.000Z	42 \| good	4.23 \| good	18.718 \| good	44.575 \| good	0.257 \| good	0.17 \| good	0.124 \| good
2026-03-11T22:00:00.000Z	38 \| good	2.991 \| good	12 \| good	41.236 \| good	0.225 \| good	0.275 \| good	0.126 \| good
2026-03-11T23:00:00.000Z	38 \| good	1.964 \| good	8 \| good	40.531 \| good	0.204 \| good	0.391 \| good	0.127 \| good
2026-03-12T00:00:00.000Z	36 \| good	3.149 \| good	13.675 \| good	38.76 \| good	0.162 \| good	0.501 \| good	0.128 \| good
2026-03-12T01:00:00.000Z	35 \| good	3.087 \| good	12.988 \| good	38.282 \| good	0.146 \| good	0.976 \| good	0.133 \| good
2026-03-12T02:00:00.000Z	35 \| good	2.814 \| good	11.465 \| good	38.125 \| good	0.13 \| good	1.451 \| good	0.138 \| good
2026-03-12T03:00:00.000Z	37 \| good	3.404 \| good	14.969 \| good	40.458 \| good	0.113 \| good	1.925 \| good	0.143 \| good
2026-03-12T04:00:00.000Z	36 \| good	2.81 \| good	11.465 \| good	39.001 \| good	0.109 \| good	1.787 \| good	0.142 \| good
2026-03-12T05:00:00.000Z	36 \| good	1.911 \| good	8 \| good	38.888 \| good	0.105 \| good	1.648 \| good	0.141 \| good
2026-03-12T06:00:00.000Z	37 \| good	1.98 \| good	8 \| good	40.035 \| good	0.1 \| good	1.51 \| good	0.141 \| good
2026-03-12T07:00:00.000Z	34 \| good	3.632 \| good	15.969 \| good	36.604 \| good	0.094 \| good	1.226 \| good	0.136 \| good
2026-03-12T08:00:00.000Z	34 \| good	3.024 \| good	12.118 \| good	36.668 \| good	0.087 \| good	0.942 \| good	0.131 \| good
2026-03-12T09:00:00.000Z	34 \| good	2.399 \| good	10 \| good	36.706 \| good	0.081 \| good	0.658 \| good	0.127 \| good
2026-03-12T10:00:00.000Z	32 \| good	1.794 \| good	7.192 \| good	34.937 \| good	0.069 \| good	0.55 \| good	0.124 \| good
2026-03-12T10:00:00.000Z	32 \| good	1.794 \| good	7.192 \| good	34.937 \| good	0.069 \| good	0.55 \| good	0.124 \| good
2026-03-12T11:00:00.000Z	34 \| good	2.156 \| good	8.952 \| good	37.446 \| good	0.056 \| good	0.443 \| good	0.12 \| good
2026-03-12T12:00:00.000Z	33 \| good	3.224 \| good	14.068 \| good	36.07 \| good	0.044 \| good	0.334 \| good	0.117 \| good
2026-03-12T13:00:00.000Z	33 \| good	2.414 \| good	9.97 \| good	35.981 \| good	0.038 \| good	0.387 \| good	0.116 \| good
2026-03-12T14:00:00.000Z	31 \| good	4.335 \| good	18.965 \| good	33.868 \| good	0.032 \| good	0.44 \| good	0.114 \| good
2026-03-12T15:00:00.000Z	31 \| good	3.964 \| good	17.42 \| good	33.53 \| good	0.026 \| good	0.493 \| good	0.113 \| good
2026-03-12T16:00:00.000Z	31 \| good	3.715 \| good	16.068 \| good	33.178 \| good	0.023 \| good	0.393 \| good	0.111 \| good
2026-03-12T17:00:00.000Z	31 \| good	2.221 \| good	9.055 \| good	34.046 \| good	0.02 \| good	0.293 \| good	0.109 \| good
2026-03-12T18:00:00.000Z	31 \| good	2.444 \| good	10 \| good	34.47 \| good	0.017 \| good	0.193 \| good	0.108 \| good
2026-03-12T19:00:00.000Z	32 \| good	3.878 \| good	16.915 \| good	34.856 \| good	0.029 \| good	0.197 \| good	0.108 \| good
2026-03-12T20:00:00.000Z	32 \| good	3.119 \| good	12.998 \| good	35.482 \| good	0.041 \| good	0.202 \| good	0.108 \| good
2026-03-12T21:00:00.000Z	34 \| good	4.554 \| good	19.894 \| good	36.704 \| good	0.053 \| good	0.206 \| good	0.108 \| good
2026-03-12T22:00:00.000Z	39 \| good	4.502 \| good	19.811 \| good	42.064 \| good	0.075 \| good	0.304 \| good	0.109 \| good
2026-03-12T23:00:00.000Z	41 \| good	3.365 \| good	14.852 \| good	43.777 \| good	0.097 \| good	0.401 \| good	0.11 \| good
2026-03-13T00:00:00.000Z	42 \| good	2.972 \| good	12.106 \| good	44.644 \| good	0.119 \| good	0.498 \| good	0.112 \| good
2026-03-13T01:00:00.000Z	44 \| good	2.85 \| good	11.777 \| good	47.403 \| good	0.134 \| good	0.494 \| good	0.114 \| good
2026-03-13T02:00:00.000Z	44 \| good	2.367 \| good	9.916 \| good	46.627 \| good	0.15 \| good	0.49 \| good	0.117 \| good
2026-03-13T03:00:00.000Z	43 \| good	3.144 \| good	13.535 \| good	45.61 \| good	0.165 \| good	0.485 \| good	0.12 \| good
2026-03-13T04:00:00.000Z	41 \| good	2.601 \| good	10.535 \| good	43.941 \| good	0.166 \| good	0.508 \| good	0.122 \| good
2026-03-13T05:00:00.000Z	40 \| good	3.026 \| good	12.164 \| good	42.672 \| good	0.167 \| good	0.531 \| good	0.125 \| good
2026-03-13T06:00:00.000Z	39 \| good	3.525 \| good	15.747 \| good	42.137 \| good	0.168 \| good	0.554 \| good	0.128 \| good
2026-03-13T07:00:00.000Z	36 \| good	4.533 \| good	19.581 \| good	39.432 \| good	0.155 \| good	0.559 \| good	0.128 \| good
2026-03-13T08:00:00.000Z	33 \| good	3.294 \| good	14.424 \| good	35.702 \| good	0.143 \| good	0.564 \| good	0.128 \| good
2026-03-13T09:00:00.000Z	32 \| good	2.806 \| good	11.485 \| good	34.619 \| good	0.131 \| good	0.569 \| good	0.128 \| good
2026-03-13T10:00:00.000Z	31 \| good	2.37 \| good	10 \| good	34.414 \| good	0.126 \| good	0.573 \| good	0.127 \| good
2026-03-13T11:00:00.000Z	34 \| good	1.744 \| good	7.03 \| good	37.489 \| good	0.122 \| good	0.577 \| good	0.126 \| good
2026-03-13T12:00:00.000Z	35 \| good	1.908 \| good	8 \| good	37.664 \| good	0.117 \| good	0.581 \| good	0.125 \| good
2026-03-13T13:00:00.000Z	34 \| good	1.602 \| good	6.55 \| good	37.07 \| good	0.12 \| good	0.831 \| good	0.126 \| good
2026-03-13T14:00:00.000Z	34 \| good	3.111 \| good	12.97 \| good	37.296 \| good	0.123 \| good	1.08 \| good	0.128 \| good
2026-03-13T15:00:00.000Z	34 \| good	4.934 \| good	21.399 \| good	36.689 \| good	0.126 \| good	1.33 \| good	0.129 \| good
2026-03-13T16:00:00.000Z	49 \| good	8.659 \| good	37.899 \| good	38.974 \| good	0.131 \| good	1.041 \| good	0.127 \| good
2026-03-13T17:00:00.000Z	40 \| good	5.239 \| good	22.662 \| good	43.445 \| good	0.136 \| good	0.752 \| good	0.124 \| good
2026-03-13T18:00:00.000Z	43 \| good	5.924 \| good	26.335 \| good	45.776 \| good	0.141 \| good	0.463 \| good	0.122 \| good
2026-03-13T19:00:00.000Z	42 \| good	3.478 \| good	15.278 \| good	45.072 \| good	0.148 \| good	0.411 \| good	0.122 \| good
2026-03-13T20:00:00.000Z	42 \| good	4.598 \| good	19.845 \| good	44.845 \| good	0.154 \| good	0.359 \| good	0.122 \| good
2026-03-13T21:00:00.000Z	42 \| good	5.164 \| good	22.262 \| good	44.721 \| good	0.161 \| good	0.308 \| good	0.122 \| good
2026-03-13T22:00:00.000Z	43 \| good	4.117 \| good	17.89 \| good	46.19 \| good	0.164 \| good	0.395 \| good	0.123 \| good
2026-03-13T23:00:00.000Z	42 \| good	2.63 \| good	10.744 \| good	44.654 \| good	0.166 \| good	0.482 \| good	0.125 \| good
2026-03-14T00:00:00.000Z	40 \| good	4.39 \| good	19.466 \| good	43.411 \| good	0.169 \| good	0.569 \| good	0.127 \| good
2026-03-14T01:00:00.000Z	41 \| good	4.578 \| good	19.946 \| good	43.886 \| good	0.171 \| good	0.683 \| good	0.129 \| good
2026-03-14T02:00:00.000Z	39 \| good	3.261 \| good	13.719 \| good	42.291 \| good	0.172 \| good	0.796 \| good	0.13 \| good
2026-03-14T03:00:00.000Z	39 \| good	3.834 \| good	16.839 \| good	41.606 \| good	0.174 \| good	0.91 \| good	0.132 \| good
2026-03-14T04:00:00.000Z	35 \| good	4.338 \| good	18.995 \| good	37.532 \| good	0.177 \| good	0.876 \| good	0.132 \| good
2026-03-14T05:00:00.000Z	32 \| good	2.525 \| good	10.378 \| good	35.243 \| good	0.18 \| good	0.842 \| good	0.132 \| good
2026-03-14T06:00:00.000Z	50 \| good	2.521 \| good	3.62 \| good	53.501 \| good	0.184 \| good	0.801 \| good	0.133 \| good
2026-03-14T07:00:00.000Z	32 \| good	5.042 \| good	21.771 \| good	35.229 \| good	0.181 \| good	0.733 \| good	0.132 \| good
2026-03-14T08:00:00.000Z	32 \| good	4.798 \| good	20.828 \| good	35.253 \| good	0.18 \| good	0.658 \| good	0.131 \| good
2026-03-14T09:00:00.000Z	31 \| good	3.834 \| good	16.54 \| good	33.865 \| good	0.178 \| good	0.584 \| good	0.131 \| good
2026-03-14T10:00:00.000Z	28 \| good	4.847 \| good	20.965 \| good	30.433 \| good	0.168 \| good	0.56 \| good	0.131 \| good

Spearfish

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Spearfish, South Dakota air quality map: Track AQI near you

0.14ppm

How accurate is South Dakota, USA air quality data?

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

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Frequently asked questions

How often is the air quality data for Spearfish, South Dakota updated?

The air quality for Spearfish, South Dakota is updated every hour.

When was the worst air quality at Spearfish, South Dakota in the last 24 hrs?

The worst air quality in Spearfish, South Dakota in the last 24 hours was observed at 09:00:00 on 2026-03-11.

When was the best air quality at Spearfish, South Dakota in the last 24 hrs?

In the last 24 hrs, the best air quality in Spearfish, South Dakota was observed at 02:00:00 on 2026-03-11.

What is the current air quality in Spearfish, South Dakota?

The current air quality in Spearfish, South Dakota is 32, categorized as Good based on real-time data.

What pollutant is the most common in Spearfish, South Dakota?

The most common pollutant in Spearfish, South Dakota is O3.

What should I do if the air quality in Spearfish, South Dakota is poor?

If the air quality in Spearfish, South Dakota is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Spearfish, South Dakota?

The current PM_2.5 concentration at Spearfish, South Dakota is 1.794 μg/m³.

What is the current concentration of PM₁₀ in Spearfish, South Dakota?

The current PM₁₀ concentration at Spearfish, South Dakota is 7.192 μg/m³.

What is the current concentration of carbon monoxide (CO) in Spearfish, South Dakota?

The current carbon monoxide (CO) concentration at Spearfish, South Dakota is 0.124 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Spearfish, South Dakota?

The current sulfur dioxide (SO₂) concentration at Spearfish, South Dakota is 0.069 ppb.

What is the current concentration of ozone (O₃) in Spearfish, South Dakota?

The current ozone (O₃) concentration at Spearfish, South Dakota is 34.937 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Spearfish, South Dakota?

The current nitrogen dioxide (NO₂) concentration at Spearfish, South Dakota is 0.55 ppb.

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