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

The current PM10 concentration at Spearfish, South Dakota is 62.435 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 0.046 ppb.

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

The current ozone (O3) concentration at Spearfish, South Dakota is 46.392 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 0.599 ppb.

Spearfish, South Dakota live air quality index now

Name: Live air pollution levels in Spearfish, South Dakota today
Creator: Ambee

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)

Moderate

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)

20.36 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

90.02 μg/m³

155

255

425

605+

Ozone (O₃)

37.82 ppb

201

201+

Sulfur Dioxide (SO₂)

0.09 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

1.12 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.15 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Spearfish, South Dakota

Get Live Pollen Counts

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
2025-07-18T17:00:00.000Z	52 \| moderate	9.83 \| good	43.343 \| good	37.804 \| good	0.096 \| good	0.5 \| good	0.167 \| good
2025-07-18T18:00:00.000Z	52 \| moderate	10.15 \| good	44.898 \| good	38.838 \| good	0.085 \| good	0.329 \| good	0.165 \| good
2025-07-18T19:00:00.000Z	52 \| moderate	9.786 \| good	43.343 \| good	37.875 \| good	0.088 \| good	0.316 \| good	0.164 \| good
2025-07-18T20:00:00.000Z	52 \| moderate	9.816 \| good	43.433 \| good	38.21 \| good	0.091 \| good	0.302 \| good	0.163 \| good
2025-07-18T21:00:00.000Z	52 \| moderate	10.332 \| good	45.941 \| good	38.959 \| good	0.094 \| good	0.288 \| good	0.163 \| good
2025-07-18T22:00:00.000Z	54 \| moderate	10.796 \| good	47.941 \| good	39.245 \| good	0.098 \| good	0.377 \| good	0.164 \| good
2025-07-18T23:00:00.000Z	52 \| moderate	9.928 \| good	44.031 \| good	36.834 \| good	0.103 \| good	0.399 \| good	0.16 \| good
2025-07-19T00:00:00.000Z	58 \| moderate	12.841 \| fine	57.687 \| fine	37.01 \| good	0.108 \| good	0.463 \| good	0.16 \| good
2025-07-19T01:00:00.000Z	58 \| moderate	12.653 \| fine	57 \| fine	34.615 \| good	0.109 \| good	1.191 \| good	0.166 \| good
2025-07-19T02:00:00.000Z	54 \| moderate	11.023 \| good	48.807 \| good	30.208 \| good	0.11 \| good	1.919 \| good	0.171 \| good
2025-07-19T03:00:00.000Z	52 \| moderate	9.81 \| good	43.748 \| good	32.023 \| good	0.111 \| good	2.647 \| good	0.177 \| good
2025-07-19T04:00:00.000Z	49 \| good	9.313 \| good	41.748 \| good	32.472 \| good	0.11 \| good	2.898 \| good	0.178 \| good
2025-07-19T05:00:00.000Z	52 \| moderate	9.962 \| good	44.272 \| good	31.66 \| good	0.109 \| good	3.149 \| good	0.179 \| good
2025-07-19T06:00:00.000Z	49 \| good	9.342 \| good	41.748 \| good	27.994 \| good	0.108 \| good	3.4 \| good	0.179 \| good
2025-07-19T07:00:00.000Z	44 \| good	8.324 \| good	36.476 \| good	26.17 \| good	0.106 \| good	3.361 \| good	0.179 \| good
2025-07-19T08:00:00.000Z	44 \| good	7.988 \| good	34.94 \| good	27.281 \| good	0.104 \| good	3.323 \| good	0.178 \| good
2025-07-19T09:00:00.000Z	38 \| good	6.977 \| good	30.971 \| good	27.057 \| good	0.102 \| good	3.284 \| good	0.177 \| good
2025-07-19T10:00:00.000Z	33 \| good	6.146 \| good	27.011 \| good	31.407 \| good	0.101 \| good	3.072 \| good	0.175 \| good
2025-07-19T11:00:00.000Z	44 \| good	7.769 \| good	34.223 \| good	35.638 \| good	0.123 \| good	2.35 \| good	0.169 \| good
2025-07-19T12:00:00.000Z	52 \| moderate	9.549 \| good	43 \| good	29.709 \| good	0.119 \| good	2.238 \| good	0.166 \| good
2025-07-19T13:00:00.000Z	52 \| moderate	10.468 \| good	46.567 \| good	28.301 \| good	0.111 \| good	1.808 \| good	0.165 \| good
2025-07-19T14:00:00.000Z	52 \| moderate	9.742 \| good	43.353 \| good	31.935 \| good	0.103 \| good	1.378 \| good	0.163 \| good
2025-07-19T15:00:00.000Z	54 \| moderate	10.816 \| good	47.92 \| good	36.857 \| good	0.096 \| good	0.948 \| good	0.161 \| good
2025-07-19T16:00:00.000Z	44 \| good	7.815 \| good	34.238 \| good	41.247 \| good	0.088 \| good	0.809 \| good	0.16 \| good
2025-07-19T17:00:00.000Z	44 \| good	8.106 \| good	35.331 \| good	41.713 \| good	0.08 \| good	0.669 \| good	0.158 \| good
2025-07-19T18:00:00.000Z	44 \| good	7.92 \| good	34.343 \| good	46.108 \| good	0.071 \| good	0.529 \| good	0.157 \| good
2025-07-19T19:00:00.000Z	49 \| good	8.577 \| good	37.343 \| good	44.84 \| good	0.073 \| good	0.515 \| good	0.155 \| good
2025-07-19T20:00:00.000Z	52 \| moderate	9.73 \| good	43.557 \| good	45.859 \| good	0.075 \| good	0.501 \| good	0.152 \| good
2025-07-19T21:00:00.000Z	52 \| moderate	9.502 \| good	42.498 \| good	45.695 \| good	0.076 \| good	0.488 \| good	0.15 \| good
2025-07-19T22:00:00.000Z	52 \| moderate	9.512 \| good	42.557 \| good	45.926 \| good	0.07 \| good	0.596 \| good	0.151 \| good
2025-07-19T23:00:00.000Z	44 \| good	8.384 \| good	36.749 \| good	47.369 \| good	0.094 \| good	0.479 \| good	0.146 \| good
2025-07-20T00:00:00.000Z	44 \| good	8.126 \| good	35.718 \| good	46.86 \| good	0.09 \| good	0.556 \| good	0.147 \| good
2025-07-20T01:00:00.000Z	52 \| moderate	9.518 \| good	42.374 \| good	43.004 \| good	0.087 \| good	1.478 \| good	0.157 \| good
2025-07-20T02:00:00.000Z	54 \| moderate	11.073 \| good	48.82 \| good	35.816 \| good	0.084 \| good	2.401 \| good	0.167 \| good
2025-07-20T03:00:00.000Z	44 \| good	8.322 \| good	36.507 \| good	35.108 \| good	0.08 \| good	3.324 \| good	0.177 \| good
2025-07-20T04:00:00.000Z	52 \| moderate	9.76 \| good	43.477 \| good	36.049 \| good	0.081 \| good	3.314 \| good	0.176 \| good
2025-07-20T05:00:00.000Z	52 \| moderate	9.531 \| good	42.567 \| good	36.814 \| good	0.081 \| good	3.303 \| good	0.175 \| good
2025-07-20T06:00:00.000Z	49 \| good	8.926 \| good	39.322 \| good	34.878 \| good	0.082 \| good	3.293 \| good	0.174 \| good
2025-07-20T07:00:00.000Z	38 \| good	6.574 \| good	29.251 \| good	29.752 \| good	0.083 \| good	3.301 \| good	0.172 \| good
2025-07-20T08:00:00.000Z	44 \| good	7.864 \| good	34.192 \| good	29.42 \| good	0.084 \| good	3.309 \| good	0.169 \| good
2025-07-20T09:00:00.000Z	33 \| good	5.935 \| good	26.043 \| good	28.745 \| good	0.085 \| good	3.318 \| good	0.167 \| good
2025-07-20T10:00:00.000Z	33 \| good	5.925 \| good	26.071 \| good	29.078 \| good	0.089 \| good	3.284 \| good	0.165 \| good
2025-07-20T11:00:00.000Z	49 \| good	9.275 \| good	41.626 \| good	34.725 \| good	0.064 \| good	2.735 \| good	0.164 \| good
2025-07-20T12:00:00.000Z	58 \| moderate	13.476 \| fine	61.059 \| fine	33.41 \| good	0.07 \| good	2.828 \| good	0.161 \| good
2025-07-20T13:00:00.000Z	66 \| moderate	16.504 \| fine	73.258 \| fine	32.157 \| good	0.078 \| good	2.26 \| good	0.159 \| good
2025-07-20T14:00:00.000Z	71 \| moderate	19.986 \| fine	87.841 \| fine	36.243 \| good	0.085 \| good	1.692 \| good	0.156 \| good
2025-07-20T15:00:00.000Z	71 \| moderate	20.355 \| fine	90.024 \| fine	37.822 \| good	0.093 \| good	1.124 \| good	0.153 \| good
2025-07-20T16:00:00.000Z	71 \| moderate	19.501 \| fine	85.687 \| fine	37.944 \| good	0.086 \| good	0.897 \| good	0.152 \| good
2025-07-20T16:00:00.000Z	71 \| moderate	20.355 \| fine	90.024 \| fine	37.822 \| good	0.093 \| good	1.124 \| good	0.153 \| good
2025-07-18T01:00:00.000Z	62 \| moderate	15.109 \| fine	67.534 \| fine	45.429 \| good	0.054 \| good	1.546 \| good	0.158 \| good
2025-07-18T02:00:00.000Z	56 \| moderate	12.227 \| fine	54.891 \| good	38.564 \| good	0.053 \| good	2.504 \| good	0.167 \| good
2025-07-18T03:00:00.000Z	56 \| moderate	12.082 \| good	53.998 \| good	37.06 \| good	0.052 \| good	3.463 \| good	0.176 \| good
2025-07-18T04:00:00.000Z	56 \| moderate	11.75 \| good	52.29 \| good	35.335 \| good	0.055 \| good	3.679 \| good	0.178 \| good
2025-07-18T05:00:00.000Z	54 \| moderate	11.355 \| good	50.047 \| good	35.112 \| good	0.057 \| good	3.896 \| good	0.18 \| good
2025-07-18T06:00:00.000Z	56 \| moderate	12.122 \| fine	54.304 \| good	30.906 \| good	0.06 \| good	4.112 \| good	0.183 \| good
2025-07-18T07:00:00.000Z	54 \| moderate	11.031 \| good	48.966 \| good	29.951 \| good	0.06 \| good	4.048 \| good	0.184 \| good
2025-07-18T08:00:00.000Z	52 \| moderate	10.147 \| good	45.252 \| good	29.813 \| good	0.061 \| good	3.983 \| good	0.184 \| good
2025-07-18T09:00:00.000Z	49 \| good	9.219 \| good	41.288 \| good	31.005 \| good	0.061 \| good	3.919 \| good	0.185 \| good
2025-07-18T10:00:00.000Z	52 \| moderate	9.883 \| good	43.879 \| good	33.078 \| good	0.067 \| good	3.492 \| good	0.18 \| good
2025-07-18T11:00:00.000Z	52 \| moderate	10.031 \| good	44.621 \| good	36.296 \| good	0.072 \| good	3.065 \| good	0.175 \| good
2025-07-18T12:00:00.000Z	56 \| moderate	12.198 \| fine	55.076 \| fine	32.813 \| good	0.078 \| good	2.638 \| good	0.17 \| good
2025-07-18T13:00:00.000Z	52 \| moderate	10.384 \| good	45.82 \| good	30.333 \| good	0.082 \| good	1.998 \| good	0.163 \| good
2025-07-18T14:00:00.000Z	52 \| moderate	9.732 \| good	43.565 \| good	29.855 \| good	0.087 \| good	1.357 \| good	0.157 \| good
2025-07-18T15:00:00.000Z	44 \| good	8.118 \| good	35.71 \| good	30.736 \| good	0.091 \| good	0.716 \| good	0.15 \| good
2025-07-18T16:00:00.000Z	49 \| good	9.24 \| good	40.827 \| good	33.442 \| good	0.086 \| good	0.572 \| good	0.151 \| good
2025-07-18T17:00:00.000Z	49 \| good	8.837 \| good	39.184 \| good	35.015 \| good	0.081 \| good	0.428 \| good	0.152 \| good
2025-07-18T18:00:00.000Z	44 \| good	7.925 \| good	34.764 \| good	35.352 \| good	0.076 \| good	0.284 \| good	0.152 \| good
2025-07-18T19:00:00.000Z	44 \| good	7.798 \| good	34.269 \| good	36.044 \| good	0.076 \| good	0.276 \| good	0.153 \| good
2025-07-18T20:00:00.000Z	52 \| moderate	10.329 \| good	45.803 \| good	37.117 \| good	0.075 \| good	0.268 \| good	0.153 \| good
2025-07-18T21:00:00.000Z	56 \| moderate	11.511 \| good	50.881 \| good	38.038 \| good	0.075 \| good	0.26 \| good	0.154 \| good
2025-07-18T22:00:00.000Z	54 \| moderate	11.455 \| good	50.916 \| good	37.478 \| good	0.077 \| good	0.34 \| good	0.154 \| good
2025-07-18T23:00:00.000Z	54 \| moderate	10.875 \| good	47.999 \| good	36.73 \| good	0.079 \| good	0.42 \| good	0.155 \| good
2025-07-19T00:00:00.000Z	54 \| moderate	10.542 \| good	46.456 \| good	37.894 \| good	0.081 \| good	0.501 \| good	0.156 \| good
2025-07-19T01:00:00.000Z	54 \| moderate	11.322 \| good	50.222 \| good	35.759 \| good	0.084 \| good	1.282 \| good	0.162 \| good
2025-07-19T02:00:00.000Z	54 \| moderate	10.652 \| good	46.921 \| good	31.236 \| good	0.087 \| good	2.064 \| good	0.168 \| good
2025-07-19T03:00:00.000Z	49 \| good	9.479 \| good	41.833 \| good	32.349 \| good	0.091 \| good	2.846 \| good	0.174 \| good
2025-07-19T04:00:00.000Z	49 \| good	9.205 \| good	40.705 \| good	34.183 \| good	0.098 \| good	3.209 \| good	0.177 \| good
2025-07-19T05:00:00.000Z	44 \| good	8.203 \| good	35.894 \| good	31.017 \| good	0.106 \| good	3.573 \| good	0.18 \| good
2025-07-19T06:00:00.000Z	52 \| moderate	9.698 \| good	43.141 \| good	25.601 \| good	0.114 \| good	3.936 \| good	0.183 \| good
2025-07-19T07:00:00.000Z	49 \| good	9.293 \| good	41.625 \| good	26.815 \| good	0.125 \| good	3.595 \| good	0.18 \| good
2025-07-19T08:00:00.000Z	44 \| good	7.585 \| good	33.23 \| good	32.315 \| good	0.136 \| good	3.255 \| good	0.177 \| good
2025-07-19T09:00:00.000Z	36 \| good	4.064 \| good	17.595 \| good	39.291 \| good	0.147 \| good	2.914 \| good	0.173 \| good
2025-07-19T10:00:00.000Z	35 \| good	4.266 \| good	18.672 \| good	38.311 \| good	0.157 \| good	2.653 \| good	0.171 \| good
2025-07-19T11:00:00.000Z	39 \| good	4.616 \| good	20.11 \| good	41.693 \| good	0.166 \| good	2.392 \| good	0.169 \| good
2025-07-19T12:00:00.000Z	29 \| good	5.474 \| good	23.611 \| good	31.499 \| good	0.175 \| good	2.132 \| good	0.166 \| good
2025-07-19T13:00:00.000Z	30 \| good	4.396 \| good	19.235 \| good	32.29 \| good	0.142 \| good	1.836 \| good	0.165 \| good
2025-07-19T14:00:00.000Z	34 \| good	3.444 \| good	15.143 \| good	36.847 \| good	0.109 \| good	1.54 \| good	0.164 \| good
2025-07-19T15:00:00.000Z	36 \| good	3.447 \| good	14.86 \| good	39.476 \| good	0.076 \| good	1.244 \| good	0.163 \| good
2025-07-19T16:00:00.000Z	39 \| good	6.168 \| good	27.227 \| good	41.507 \| good	0.073 \| good	1.031 \| good	0.162 \| good
2025-07-19T17:00:00.000Z	41 \| good	6.379 \| good	28.348 \| good	43.504 \| good	0.069 \| good	0.819 \| good	0.161 \| good
2025-07-19T18:00:00.000Z	40 \| good	6.851 \| good	30.425 \| good	43.134 \| good	0.066 \| good	0.606 \| good	0.16 \| good
2025-07-19T19:00:00.000Z	49 \| good	8.848 \| good	38.802 \| good	41.872 \| good	0.06 \| good	0.526 \| good	0.159 \| good
2025-07-19T20:00:00.000Z	54 \| moderate	11.364 \| good	50.313 \| good	43.352 \| good	0.054 \| good	0.446 \| good	0.158 \| good
2025-07-19T21:00:00.000Z	49 \| good	9.405 \| good	42.201 \| good	44.99 \| good	0.049 \| good	0.366 \| good	0.157 \| good
2025-07-19T22:00:00.000Z	44 \| good	7.532 \| good	32.951 \| good	45.236 \| good	0.048 \| good	0.481 \| good	0.156 \| good
2025-07-19T23:00:00.000Z	43 \| good	5.529 \| good	24.492 \| good	45.547 \| good	0.048 \| good	0.596 \| good	0.156 \| good
2025-07-20T00:00:00.000Z	50 \| good	6.018 \| good	7.122 \| good	54.419 \| good	0.049 \| good	0.714 \| good	0.155 \| good

Spearfish

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

0.17ppm

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 2025-07-17.

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 12:00:00 on 2025-07-17.

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

The current air quality in Spearfish, South Dakota is 60, categorized as Moderate based on real-time data.

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

The most common pollutant in Spearfish, South Dakota is PM2.5.

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 13.993 μg/m³.

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

The current PM₁₀ concentration at Spearfish, South Dakota is 62.435 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 0.152 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 0.046 ppb.

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

The current ozone (O₃) concentration at Spearfish, South Dakota is 46.392 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 0.599 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-18T17:00:00.000Z	52 \| moderate	9.83 \| good	43.343 \| good	37.804 \| good	0.096 \| good	0.5 \| good	0.167 \| good
2025-07-18T18:00:00.000Z	52 \| moderate	10.15 \| good	44.898 \| good	38.838 \| good	0.085 \| good	0.329 \| good	0.165 \| good
2025-07-18T19:00:00.000Z	52 \| moderate	9.786 \| good	43.343 \| good	37.875 \| good	0.088 \| good	0.316 \| good	0.164 \| good
2025-07-18T20:00:00.000Z	52 \| moderate	9.816 \| good	43.433 \| good	38.21 \| good	0.091 \| good	0.302 \| good	0.163 \| good
2025-07-18T21:00:00.000Z	52 \| moderate	10.332 \| good	45.941 \| good	38.959 \| good	0.094 \| good	0.288 \| good	0.163 \| good
2025-07-18T22:00:00.000Z	54 \| moderate	10.796 \| good	47.941 \| good	39.245 \| good	0.098 \| good	0.377 \| good	0.164 \| good
2025-07-18T23:00:00.000Z	52 \| moderate	9.928 \| good	44.031 \| good	36.834 \| good	0.103 \| good	0.399 \| good	0.16 \| good
2025-07-19T00:00:00.000Z	58 \| moderate	12.841 \| fine	57.687 \| fine	37.01 \| good	0.108 \| good	0.463 \| good	0.16 \| good
2025-07-19T01:00:00.000Z	58 \| moderate	12.653 \| fine	57 \| fine	34.615 \| good	0.109 \| good	1.191 \| good	0.166 \| good
2025-07-19T02:00:00.000Z	54 \| moderate	11.023 \| good	48.807 \| good	30.208 \| good	0.11 \| good	1.919 \| good	0.171 \| good
2025-07-19T03:00:00.000Z	52 \| moderate	9.81 \| good	43.748 \| good	32.023 \| good	0.111 \| good	2.647 \| good	0.177 \| good
2025-07-19T04:00:00.000Z	49 \| good	9.313 \| good	41.748 \| good	32.472 \| good	0.11 \| good	2.898 \| good	0.178 \| good
2025-07-19T05:00:00.000Z	52 \| moderate	9.962 \| good	44.272 \| good	31.66 \| good	0.109 \| good	3.149 \| good	0.179 \| good
2025-07-19T06:00:00.000Z	49 \| good	9.342 \| good	41.748 \| good	27.994 \| good	0.108 \| good	3.4 \| good	0.179 \| good
2025-07-19T07:00:00.000Z	44 \| good	8.324 \| good	36.476 \| good	26.17 \| good	0.106 \| good	3.361 \| good	0.179 \| good
2025-07-19T08:00:00.000Z	44 \| good	7.988 \| good	34.94 \| good	27.281 \| good	0.104 \| good	3.323 \| good	0.178 \| good
2025-07-19T09:00:00.000Z	38 \| good	6.977 \| good	30.971 \| good	27.057 \| good	0.102 \| good	3.284 \| good	0.177 \| good
2025-07-19T10:00:00.000Z	33 \| good	6.146 \| good	27.011 \| good	31.407 \| good	0.101 \| good	3.072 \| good	0.175 \| good
2025-07-19T11:00:00.000Z	44 \| good	7.769 \| good	34.223 \| good	35.638 \| good	0.123 \| good	2.35 \| good	0.169 \| good
2025-07-19T12:00:00.000Z	52 \| moderate	9.549 \| good	43 \| good	29.709 \| good	0.119 \| good	2.238 \| good	0.166 \| good
2025-07-19T13:00:00.000Z	52 \| moderate	10.468 \| good	46.567 \| good	28.301 \| good	0.111 \| good	1.808 \| good	0.165 \| good
2025-07-19T14:00:00.000Z	52 \| moderate	9.742 \| good	43.353 \| good	31.935 \| good	0.103 \| good	1.378 \| good	0.163 \| good
2025-07-19T15:00:00.000Z	54 \| moderate	10.816 \| good	47.92 \| good	36.857 \| good	0.096 \| good	0.948 \| good	0.161 \| good
2025-07-19T16:00:00.000Z	44 \| good	7.815 \| good	34.238 \| good	41.247 \| good	0.088 \| good	0.809 \| good	0.16 \| good
2025-07-19T17:00:00.000Z	44 \| good	8.106 \| good	35.331 \| good	41.713 \| good	0.08 \| good	0.669 \| good	0.158 \| good
2025-07-19T18:00:00.000Z	44 \| good	7.92 \| good	34.343 \| good	46.108 \| good	0.071 \| good	0.529 \| good	0.157 \| good
2025-07-19T19:00:00.000Z	49 \| good	8.577 \| good	37.343 \| good	44.84 \| good	0.073 \| good	0.515 \| good	0.155 \| good
2025-07-19T20:00:00.000Z	52 \| moderate	9.73 \| good	43.557 \| good	45.859 \| good	0.075 \| good	0.501 \| good	0.152 \| good
2025-07-19T21:00:00.000Z	52 \| moderate	9.502 \| good	42.498 \| good	45.695 \| good	0.076 \| good	0.488 \| good	0.15 \| good
2025-07-19T22:00:00.000Z	52 \| moderate	9.512 \| good	42.557 \| good	45.926 \| good	0.07 \| good	0.596 \| good	0.151 \| good
2025-07-19T23:00:00.000Z	44 \| good	8.384 \| good	36.749 \| good	47.369 \| good	0.094 \| good	0.479 \| good	0.146 \| good
2025-07-20T00:00:00.000Z	44 \| good	8.126 \| good	35.718 \| good	46.86 \| good	0.09 \| good	0.556 \| good	0.147 \| good
2025-07-20T01:00:00.000Z	52 \| moderate	9.518 \| good	42.374 \| good	43.004 \| good	0.087 \| good	1.478 \| good	0.157 \| good
2025-07-20T02:00:00.000Z	54 \| moderate	11.073 \| good	48.82 \| good	35.816 \| good	0.084 \| good	2.401 \| good	0.167 \| good
2025-07-20T03:00:00.000Z	44 \| good	8.322 \| good	36.507 \| good	35.108 \| good	0.08 \| good	3.324 \| good	0.177 \| good
2025-07-20T04:00:00.000Z	52 \| moderate	9.76 \| good	43.477 \| good	36.049 \| good	0.081 \| good	3.314 \| good	0.176 \| good
2025-07-20T05:00:00.000Z	52 \| moderate	9.531 \| good	42.567 \| good	36.814 \| good	0.081 \| good	3.303 \| good	0.175 \| good
2025-07-20T06:00:00.000Z	49 \| good	8.926 \| good	39.322 \| good	34.878 \| good	0.082 \| good	3.293 \| good	0.174 \| good
2025-07-20T07:00:00.000Z	38 \| good	6.574 \| good	29.251 \| good	29.752 \| good	0.083 \| good	3.301 \| good	0.172 \| good
2025-07-20T08:00:00.000Z	44 \| good	7.864 \| good	34.192 \| good	29.42 \| good	0.084 \| good	3.309 \| good	0.169 \| good
2025-07-20T09:00:00.000Z	33 \| good	5.935 \| good	26.043 \| good	28.745 \| good	0.085 \| good	3.318 \| good	0.167 \| good
2025-07-20T10:00:00.000Z	33 \| good	5.925 \| good	26.071 \| good	29.078 \| good	0.089 \| good	3.284 \| good	0.165 \| good
2025-07-20T11:00:00.000Z	49 \| good	9.275 \| good	41.626 \| good	34.725 \| good	0.064 \| good	2.735 \| good	0.164 \| good
2025-07-20T12:00:00.000Z	58 \| moderate	13.476 \| fine	61.059 \| fine	33.41 \| good	0.07 \| good	2.828 \| good	0.161 \| good
2025-07-20T13:00:00.000Z	66 \| moderate	16.504 \| fine	73.258 \| fine	32.157 \| good	0.078 \| good	2.26 \| good	0.159 \| good
2025-07-20T14:00:00.000Z	71 \| moderate	19.986 \| fine	87.841 \| fine	36.243 \| good	0.085 \| good	1.692 \| good	0.156 \| good
2025-07-20T15:00:00.000Z	71 \| moderate	20.355 \| fine	90.024 \| fine	37.822 \| good	0.093 \| good	1.124 \| good	0.153 \| good
2025-07-20T16:00:00.000Z	71 \| moderate	19.501 \| fine	85.687 \| fine	37.944 \| good	0.086 \| good	0.897 \| good	0.152 \| good
2025-07-20T16:00:00.000Z	71 \| moderate	20.355 \| fine	90.024 \| fine	37.822 \| good	0.093 \| good	1.124 \| good	0.153 \| good
2025-07-18T01:00:00.000Z	62 \| moderate	15.109 \| fine	67.534 \| fine	45.429 \| good	0.054 \| good	1.546 \| good	0.158 \| good
2025-07-18T02:00:00.000Z	56 \| moderate	12.227 \| fine	54.891 \| good	38.564 \| good	0.053 \| good	2.504 \| good	0.167 \| good
2025-07-18T03:00:00.000Z	56 \| moderate	12.082 \| good	53.998 \| good	37.06 \| good	0.052 \| good	3.463 \| good	0.176 \| good
2025-07-18T04:00:00.000Z	56 \| moderate	11.75 \| good	52.29 \| good	35.335 \| good	0.055 \| good	3.679 \| good	0.178 \| good
2025-07-18T05:00:00.000Z	54 \| moderate	11.355 \| good	50.047 \| good	35.112 \| good	0.057 \| good	3.896 \| good	0.18 \| good
2025-07-18T06:00:00.000Z	56 \| moderate	12.122 \| fine	54.304 \| good	30.906 \| good	0.06 \| good	4.112 \| good	0.183 \| good
2025-07-18T07:00:00.000Z	54 \| moderate	11.031 \| good	48.966 \| good	29.951 \| good	0.06 \| good	4.048 \| good	0.184 \| good
2025-07-18T08:00:00.000Z	52 \| moderate	10.147 \| good	45.252 \| good	29.813 \| good	0.061 \| good	3.983 \| good	0.184 \| good
2025-07-18T09:00:00.000Z	49 \| good	9.219 \| good	41.288 \| good	31.005 \| good	0.061 \| good	3.919 \| good	0.185 \| good
2025-07-18T10:00:00.000Z	52 \| moderate	9.883 \| good	43.879 \| good	33.078 \| good	0.067 \| good	3.492 \| good	0.18 \| good
2025-07-18T11:00:00.000Z	52 \| moderate	10.031 \| good	44.621 \| good	36.296 \| good	0.072 \| good	3.065 \| good	0.175 \| good
2025-07-18T12:00:00.000Z	56 \| moderate	12.198 \| fine	55.076 \| fine	32.813 \| good	0.078 \| good	2.638 \| good	0.17 \| good
2025-07-18T13:00:00.000Z	52 \| moderate	10.384 \| good	45.82 \| good	30.333 \| good	0.082 \| good	1.998 \| good	0.163 \| good
2025-07-18T14:00:00.000Z	52 \| moderate	9.732 \| good	43.565 \| good	29.855 \| good	0.087 \| good	1.357 \| good	0.157 \| good
2025-07-18T15:00:00.000Z	44 \| good	8.118 \| good	35.71 \| good	30.736 \| good	0.091 \| good	0.716 \| good	0.15 \| good
2025-07-18T16:00:00.000Z	49 \| good	9.24 \| good	40.827 \| good	33.442 \| good	0.086 \| good	0.572 \| good	0.151 \| good
2025-07-18T17:00:00.000Z	49 \| good	8.837 \| good	39.184 \| good	35.015 \| good	0.081 \| good	0.428 \| good	0.152 \| good
2025-07-18T18:00:00.000Z	44 \| good	7.925 \| good	34.764 \| good	35.352 \| good	0.076 \| good	0.284 \| good	0.152 \| good
2025-07-18T19:00:00.000Z	44 \| good	7.798 \| good	34.269 \| good	36.044 \| good	0.076 \| good	0.276 \| good	0.153 \| good
2025-07-18T20:00:00.000Z	52 \| moderate	10.329 \| good	45.803 \| good	37.117 \| good	0.075 \| good	0.268 \| good	0.153 \| good
2025-07-18T21:00:00.000Z	56 \| moderate	11.511 \| good	50.881 \| good	38.038 \| good	0.075 \| good	0.26 \| good	0.154 \| good
2025-07-18T22:00:00.000Z	54 \| moderate	11.455 \| good	50.916 \| good	37.478 \| good	0.077 \| good	0.34 \| good	0.154 \| good
2025-07-18T23:00:00.000Z	54 \| moderate	10.875 \| good	47.999 \| good	36.73 \| good	0.079 \| good	0.42 \| good	0.155 \| good
2025-07-19T00:00:00.000Z	54 \| moderate	10.542 \| good	46.456 \| good	37.894 \| good	0.081 \| good	0.501 \| good	0.156 \| good
2025-07-19T01:00:00.000Z	54 \| moderate	11.322 \| good	50.222 \| good	35.759 \| good	0.084 \| good	1.282 \| good	0.162 \| good
2025-07-19T02:00:00.000Z	54 \| moderate	10.652 \| good	46.921 \| good	31.236 \| good	0.087 \| good	2.064 \| good	0.168 \| good
2025-07-19T03:00:00.000Z	49 \| good	9.479 \| good	41.833 \| good	32.349 \| good	0.091 \| good	2.846 \| good	0.174 \| good
2025-07-19T04:00:00.000Z	49 \| good	9.205 \| good	40.705 \| good	34.183 \| good	0.098 \| good	3.209 \| good	0.177 \| good
2025-07-19T05:00:00.000Z	44 \| good	8.203 \| good	35.894 \| good	31.017 \| good	0.106 \| good	3.573 \| good	0.18 \| good
2025-07-19T06:00:00.000Z	52 \| moderate	9.698 \| good	43.141 \| good	25.601 \| good	0.114 \| good	3.936 \| good	0.183 \| good
2025-07-19T07:00:00.000Z	49 \| good	9.293 \| good	41.625 \| good	26.815 \| good	0.125 \| good	3.595 \| good	0.18 \| good
2025-07-19T08:00:00.000Z	44 \| good	7.585 \| good	33.23 \| good	32.315 \| good	0.136 \| good	3.255 \| good	0.177 \| good
2025-07-19T09:00:00.000Z	36 \| good	4.064 \| good	17.595 \| good	39.291 \| good	0.147 \| good	2.914 \| good	0.173 \| good
2025-07-19T10:00:00.000Z	35 \| good	4.266 \| good	18.672 \| good	38.311 \| good	0.157 \| good	2.653 \| good	0.171 \| good
2025-07-19T11:00:00.000Z	39 \| good	4.616 \| good	20.11 \| good	41.693 \| good	0.166 \| good	2.392 \| good	0.169 \| good
2025-07-19T12:00:00.000Z	29 \| good	5.474 \| good	23.611 \| good	31.499 \| good	0.175 \| good	2.132 \| good	0.166 \| good
2025-07-19T13:00:00.000Z	30 \| good	4.396 \| good	19.235 \| good	32.29 \| good	0.142 \| good	1.836 \| good	0.165 \| good
2025-07-19T14:00:00.000Z	34 \| good	3.444 \| good	15.143 \| good	36.847 \| good	0.109 \| good	1.54 \| good	0.164 \| good
2025-07-19T15:00:00.000Z	36 \| good	3.447 \| good	14.86 \| good	39.476 \| good	0.076 \| good	1.244 \| good	0.163 \| good
2025-07-19T16:00:00.000Z	39 \| good	6.168 \| good	27.227 \| good	41.507 \| good	0.073 \| good	1.031 \| good	0.162 \| good
2025-07-19T17:00:00.000Z	41 \| good	6.379 \| good	28.348 \| good	43.504 \| good	0.069 \| good	0.819 \| good	0.161 \| good
2025-07-19T18:00:00.000Z	40 \| good	6.851 \| good	30.425 \| good	43.134 \| good	0.066 \| good	0.606 \| good	0.16 \| good
2025-07-19T19:00:00.000Z	49 \| good	8.848 \| good	38.802 \| good	41.872 \| good	0.06 \| good	0.526 \| good	0.159 \| good
2025-07-19T20:00:00.000Z	54 \| moderate	11.364 \| good	50.313 \| good	43.352 \| good	0.054 \| good	0.446 \| good	0.158 \| good
2025-07-19T21:00:00.000Z	49 \| good	9.405 \| good	42.201 \| good	44.99 \| good	0.049 \| good	0.366 \| good	0.157 \| good
2025-07-19T22:00:00.000Z	44 \| good	7.532 \| good	32.951 \| good	45.236 \| good	0.048 \| good	0.481 \| good	0.156 \| good
2025-07-19T23:00:00.000Z	43 \| good	5.529 \| good	24.492 \| good	45.547 \| good	0.048 \| good	0.596 \| good	0.156 \| good
2025-07-20T00:00:00.000Z	50 \| good	6.018 \| good	7.122 \| good	54.419 \| good	0.049 \| good	0.714 \| good	0.155 \| good

Spearfish, South Dakota live air quality index now

Major air pollutants in Spearfish, South Dakota

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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

Air quality in nearby cities

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Dickinson, North Dakota

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Frequently asked questions

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

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

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

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

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

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

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

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

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

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

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

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