What is the current concentration of PM10 in Williston, North Dakota?

The current PM10 concentration at Williston, North Dakota is 105.694 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Williston, North Dakota?

The current sulfur dioxide (SO2) concentration at Williston, North Dakota is 0.172 ppb.

What is the current concentration of ozone (O3) in Williston, North Dakota?

The current ozone (O3) concentration at Williston, North Dakota is 23.809 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Williston, North Dakota?

The current nitrogen dioxide (NO2) concentration at Williston, North Dakota is 1.957 ppb.

Williston, North Dakota live air quality index now

Name: Live air pollution levels in Williston, North Dakota today
Creator: Ambee

Stay updated with real-time air quality in Williston, North 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

Williston, North Dakota

Last updated: ... (Local time)

Major air pollutants in Williston, North Dakota

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

24.19 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

105.69 μg/m³

155

255

425

605+

Ozone (O₃)

23.81 ppb

201

201+

Sulfur Dioxide (SO₂)

0.17 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

1.96 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.20 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

High

Williston, North Dakota

Get Live Pollen Counts

Williston, North Dakota

Scroll To Air Quality Map

Track live Williston, North Dakota air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-04T04:00:00.000Z	49 \| good	9.479 \| good	42.081 \| good	28.645 \| good	0.507 \| good	5.233 \| good	0.216 \| good
2025-09-04T05:00:00.000Z	52 \| moderate	9.548 \| good	43.917 \| good	28.371 \| good	0.564 \| good	4.864 \| good	0.216 \| good
2025-09-04T06:00:00.000Z	52 \| moderate	10.125 \| good	46.655 \| good	25.858 \| good	0.604 \| good	4.568 \| good	0.208 \| good
2025-09-04T07:00:00.000Z	56 \| moderate	11.534 \| good	51.653 \| good	24.574 \| good	0.514 \| good	3.937 \| good	0.202 \| good
2025-09-04T08:00:00.000Z	58 \| moderate	13.008 \| fine	57.691 \| fine	24.729 \| good	0.471 \| good	3.357 \| good	0.197 \| good
2025-09-04T09:00:00.000Z	58 \| moderate	13.147 \| fine	58.06 \| fine	24.402 \| good	0.424 \| good	2.772 \| good	0.195 \| good
2025-09-04T10:00:00.000Z	56 \| moderate	11.737 \| good	51.267 \| good	21.619 \| good	0.365 \| good	2.514 \| good	0.19 \| good
2025-09-04T11:00:00.000Z	52 \| moderate	9.714 \| good	41.068 \| good	20.41 \| good	0.302 \| good	2.091 \| good	0.168 \| good
2025-09-04T12:00:00.000Z	67 \| moderate	18.136 \| fine	78.78 \| fine	15.792 \| good	0.257 \| good	2.035 \| good	0.167 \| good
2025-09-04T13:00:00.000Z	77 \| moderate	22.64 \| fine	99.312 \| fine	24.172 \| good	0.223 \| good	1.5 \| good	0.189 \| good
2025-09-04T14:00:00.000Z	79 \| moderate	24.082 \| fine	105.162 \| fine	25.41 \| good	0.346 \| good	1.152 \| good	0.206 \| good
2025-09-04T15:00:00.000Z	69 \| moderate	18.967 \| fine	82.633 \| fine	27.454 \| good	0.39 \| good	0.831 \| good	0.226 \| good
2025-09-04T16:00:00.000Z	66 \| moderate	16.667 \| fine	72.148 \| fine	29.222 \| good	0.302 \| good	0.631 \| good	0.216 \| good
2025-09-04T17:00:00.000Z	64 \| moderate	15.794 \| fine	71.326 \| fine	29.439 \| good	0.242 \| good	0.584 \| good	0.202 \| good
2025-09-04T18:00:00.000Z	64 \| moderate	16.082 \| fine	70.798 \| fine	30.9 \| good	0.244 \| good	0.456 \| good	0.186 \| good
2025-09-04T19:00:00.000Z	69 \| moderate	18.64 \| fine	84.758 \| fine	31.795 \| good	0.219 \| good	0.31 \| good	0.192 \| good
2025-09-04T20:00:00.000Z	73 \| moderate	20.897 \| fine	91.556 \| fine	31.57 \| good	0.245 \| good	0.395 \| good	0.197 \| good
2025-09-04T21:00:00.000Z	77 \| moderate	22.615 \| fine	97.861 \| fine	32.386 \| good	0.237 \| good	0.355 \| good	0.2 \| good
2025-09-04T22:00:00.000Z	71 \| moderate	20.129 \| fine	87.658 \| fine	31.039 \| good	0.267 \| good	0.383 \| good	0.185 \| good
2025-09-04T23:00:00.000Z	67 \| moderate	18.313 \| fine	81.133 \| fine	30.153 \| good	0.263 \| good	0.591 \| good	0.163 \| good
2025-09-05T00:00:00.000Z	60 \| moderate	14.437 \| fine	65.919 \| fine	28.803 \| good	0.184 \| good	0.52 \| good	0.148 \| good
2025-09-05T01:00:00.000Z	56 \| moderate	11.59 \| good	51.113 \| good	24.96 \| good	0.228 \| good	0.617 \| good	0.143 \| good
2025-09-05T02:00:00.000Z	58 \| moderate	12.917 \| fine	57.549 \| fine	23.977 \| good	0.207 \| good	0.665 \| good	0.137 \| good
2025-09-05T03:00:00.000Z	56 \| moderate	11.843 \| good	54.05 \| good	23.439 \| good	0.197 \| good	0.773 \| good	0.135 \| good
2025-09-05T04:00:00.000Z	62 \| moderate	14.602 \| fine	66.274 \| fine	22.843 \| good	0.144 \| good	0.841 \| good	0.132 \| good
2025-09-05T05:00:00.000Z	62 \| moderate	15.488 \| fine	68.947 \| fine	22.388 \| good	0.142 \| good	0.937 \| good	0.13 \| good
2025-09-05T06:00:00.000Z	67 \| moderate	17.869 \| fine	79.067 \| fine	21.937 \| good	0.161 \| good	0.974 \| good	0.129 \| good
2025-09-05T07:00:00.000Z	71 \| moderate	19.502 \| fine	88.08 \| fine	20.497 \| good	0.184 \| good	1.044 \| good	0.129 \| good
2025-09-05T08:00:00.000Z	71 \| moderate	20.339 \| fine	93.009 \| fine	18.291 \| good	0.205 \| good	1.118 \| good	0.129 \| good
2025-09-05T09:00:00.000Z	81 \| moderate	24.597 \| fine	110.188 \| fine	20.424 \| good	0.21 \| good	1.164 \| good	0.129 \| good
2025-09-05T10:00:00.000Z	88 \| moderate	28.522 \| fine	123.401 \| fine	22.805 \| good	0.208 \| good	1.249 \| good	0.128 \| good
2025-09-05T11:00:00.000Z	84 \| moderate	27.434 \| fine	118.91 \| fine	19.874 \| good	0.21 \| good	1.238 \| good	0.138 \| good
2025-09-05T12:00:00.000Z	81 \| moderate	24.97 \| fine	109.509 \| fine	22.865 \| good	0.221 \| good	1.284 \| good	0.14 \| good
2025-09-05T13:00:00.000Z	71 \| moderate	19.756 \| fine	91.139 \| fine	21.726 \| good	0.22 \| good	1.14 \| good	0.145 \| good
2025-09-05T14:00:00.000Z	66 \| moderate	17.252 \| fine	79.378 \| fine	22.179 \| good	0.208 \| good	0.943 \| good	0.148 \| good
2025-09-05T15:00:00.000Z	66 \| moderate	17.383 \| fine	77.367 \| fine	22.838 \| good	0.221 \| good	0.743 \| good	0.154 \| good
2025-09-05T16:00:00.000Z	62 \| moderate	14.742 \| fine	67.078 \| fine	24.254 \| good	0.197 \| good	0.649 \| good	0.162 \| good
2025-09-05T17:00:00.000Z	62 \| moderate	14.943 \| fine	67.584 \| fine	24.712 \| good	0.214 \| good	0.565 \| good	0.164 \| good
2025-09-05T18:00:00.000Z	58 \| moderate	13.141 \| fine	59.25 \| fine	25.855 \| good	0.17 \| good	0.465 \| good	0.173 \| good
2025-09-05T19:00:00.000Z	64 \| moderate	15.648 \| fine	69.362 \| fine	27.637 \| good	0.173 \| good	0.439 \| good	0.171 \| good
2025-09-05T20:00:00.000Z	64 \| moderate	15.856 \| fine	70.804 \| fine	28.568 \| good	0.174 \| good	0.387 \| good	0.176 \| good
2025-09-05T21:00:00.000Z	64 \| moderate	15.871 \| fine	70.625 \| fine	29.89 \| good	0.221 \| good	0.372 \| good	0.176 \| good
2025-09-05T22:00:00.000Z	64 \| moderate	16.081 \| fine	70.331 \| fine	30.817 \| good	0.166 \| good	0.422 \| good	0.173 \| good
2025-09-05T23:00:00.000Z	60 \| moderate	14.445 \| fine	64.774 \| fine	30.917 \| good	0.195 \| good	0.51 \| good	0.177 \| good
2025-09-06T00:00:00.000Z	64 \| moderate	15.845 \| fine	70.514 \| fine	30.109 \| good	0.239 \| good	0.546 \| good	0.178 \| good
2025-09-06T01:00:00.000Z	67 \| moderate	18.037 \| fine	80.968 \| fine	25.789 \| good	0.171 \| good	1.262 \| good	0.187 \| good
2025-09-06T02:00:00.000Z	79 \| moderate	24.186 \| fine	105.694 \| fine	23.809 \| good	0.172 \| good	1.957 \| good	0.196 \| good
2025-09-06T03:00:00.000Z	81 \| moderate	25.497 \| fine	111.118 \| fine	22.637 \| good	0.176 \| good	2.721 \| good	0.208 \| good
2025-09-06T03:00:00.000Z	79 \| moderate	24.186 \| fine	105.694 \| fine	23.809 \| good	0.172 \| good	1.957 \| good	0.196 \| good
2025-09-06T04:00:00.000Z	88 \| moderate	28.547 \| fine	124.062 \| fine	19.463 \| good	0.07 \| good	4.635 \| good	0.207 \| good
2025-09-06T05:00:00.000Z	90 \| moderate	29.515 \| fine	128.08 \| fine	17.437 \| good	0.083 \| good	6.241 \| good	0.218 \| good
2025-09-06T06:00:00.000Z	94 \| moderate	31.91 \| fine	138.08 \| fine	14.994 \| good	0.097 \| good	7.848 \| good	0.229 \| good
2025-09-06T07:00:00.000Z	103 \| sensitive	36.384 \| moderate	158.503 \| moderate	14.672 \| good	0.099 \| good	8.895 \| good	0.232 \| good
2025-09-06T08:00:00.000Z	110 \| sensitive	38.688 \| moderate	170.666 \| moderate	14.923 \| good	0.102 \| good	9.943 \| good	0.236 \| good
2025-09-06T09:00:00.000Z	103 \| sensitive	36.454 \| moderate	159.009 \| moderate	14.14 \| good	0.104 \| good	10.99 \| good	0.239 \| good
2025-09-06T10:00:00.000Z	96 \| moderate	33.305 \| fine	143.718 \| fine	13.622 \| good	0.103 \| good	10.175 \| good	0.231 \| good
2025-09-06T11:00:00.000Z	92 \| moderate	30.928 \| fine	133.624 \| fine	13.235 \| good	0.101 \| good	9.36 \| good	0.223 \| good
2025-09-06T12:00:00.000Z	96 \| moderate	32.504 \| fine	140.717 \| fine	11.884 \| good	0.1 \| good	8.544 \| good	0.215 \| good
2025-09-06T13:00:00.000Z	84 \| moderate	27.306 \| fine	119.409 \| fine	11.727 \| good	0.097 \| good	6.653 \| good	0.209 \| good
2025-09-06T14:00:00.000Z	79 \| moderate	23.938 \| fine	104.877 \| fine	19.92 \| good	0.094 \| good	4.762 \| good	0.203 \| good
2025-09-06T15:00:00.000Z	82 \| moderate	25.704 \| fine	111.754 \| fine	24.974 \| good	0.091 \| good	2.871 \| good	0.197 \| good
2025-09-06T16:00:00.000Z	84 \| moderate	27.4 \| fine	119.298 \| fine	27.634 \| good	0.151 \| good	2.032 \| good	0.179 \| good
2025-09-06T17:00:00.000Z	82 \| moderate	26.202 \| fine	113.754 \| fine	28.799 \| good	0.21 \| good	1.193 \| good	0.162 \| good
2025-09-06T18:00:00.000Z	82 \| moderate	26.043 \| fine	113.409 \| fine	31.339 \| good	0.269 \| good	0.353 \| good	0.144 \| good
2025-09-06T19:00:00.000Z	79 \| moderate	24.269 \| fine	105.657 \| fine	32.543 \| good	0.283 \| good	0.341 \| good	0.142 \| good
2025-09-06T20:00:00.000Z	73 \| moderate	21.128 \| fine	93.097 \| fine	34.289 \| good	0.297 \| good	0.329 \| good	0.139 \| good
2025-09-06T21:00:00.000Z	71 \| moderate	19.688 \| fine	86.62 \| fine	36.16 \| good	0.312 \| good	0.317 \| good	0.136 \| good
2025-09-06T22:00:00.000Z	67 \| moderate	18.038 \| fine	79.544 \| fine	36.578 \| good	0.317 \| good	0.389 \| good	0.136 \| good
2025-09-06T23:00:00.000Z	69 \| moderate	18.627 \| fine	82.434 \| fine	36.172 \| good	0.322 \| good	0.461 \| good	0.136 \| good
2025-09-07T00:00:00.000Z	73 \| moderate	21.027 \| fine	92.5 \| fine	32.9 \| good	0.327 \| good	0.533 \| good	0.136 \| good
2025-09-07T01:00:00.000Z	77 \| moderate	23.285 \| fine	101.592 \| fine	24.893 \| good	0.301 \| good	1.708 \| good	0.149 \| good
2025-09-07T02:00:00.000Z	86 \| moderate	27.804 \| fine	121.511 \| fine	21.834 \| good	0.275 \| good	2.883 \| good	0.161 \| good
2025-09-07T03:00:00.000Z	79 \| moderate	24.151 \| fine	105.234 \| fine	21.71 \| good	0.249 \| good	4.059 \| good	0.174 \| good
2025-09-07T04:00:00.000Z	77 \| moderate	23.27 \| fine	102.11 \| fine	21.534 \| good	0.253 \| good	3.826 \| good	0.175 \| good
2025-09-07T05:00:00.000Z	79 \| moderate	23.993 \| fine	104.772 \| fine	20.025 \| good	0.256 \| good	3.594 \| good	0.177 \| good
2025-09-07T06:00:00.000Z	84 \| moderate	26.81 \| fine	116.591 \| fine	17.661 \| good	0.26 \| good	3.361 \| good	0.179 \| good
2025-09-07T07:00:00.000Z	92 \| moderate	30.593 \| fine	132.608 \| fine	16.212 \| good	0.387 \| good	3.286 \| good	0.18 \| good
2025-09-07T08:00:00.000Z	97 \| moderate	34.244 \| fine	147.962 \| fine	15.984 \| good	0.515 \| good	3.211 \| good	0.181 \| good
2025-09-07T09:00:00.000Z	100 \| moderate	35.331 \| fine	153.924 \| fine	14.416 \| good	0.643 \| good	3.136 \| good	0.183 \| good
2025-09-07T10:00:00.000Z	92 \| moderate	31.259 \| fine	135.325 \| fine	13.997 \| good	0.606 \| good	3.159 \| good	0.183 \| good
2025-09-07T11:00:00.000Z	81 \| moderate	25.405 \| fine	110.718 \| fine	13.327 \| good	0.57 \| good	3.182 \| good	0.184 \| good
2025-09-07T12:00:00.000Z	81 \| moderate	24.677 \| fine	107.809 \| fine	11.813 \| good	0.534 \| good	3.205 \| good	0.185 \| good
2025-09-07T13:00:00.000Z	71 \| moderate	20.164 \| fine	89.118 \| fine	13.627 \| good	0.505 \| good	2.768 \| good	0.183 \| good
2025-09-07T14:00:00.000Z	67 \| moderate	17.655 \| fine	78.752 \| fine	19.243 \| good	0.477 \| good	2.33 \| good	0.182 \| good
2025-09-07T15:00:00.000Z	67 \| moderate	17.957 \| fine	79.423 \| fine	25.985 \| good	0.449 \| good	1.893 \| good	0.181 \| good
2025-09-07T16:00:00.000Z	66 \| moderate	16.764 \| fine	74.752 \| fine	27.972 \| good	0.403 \| good	1.44 \| good	0.169 \| good
2025-09-07T17:00:00.000Z	62 \| moderate	15.34 \| fine	68.882 \| fine	31.271 \| good	0.357 \| good	0.988 \| good	0.157 \| good
2025-09-07T18:00:00.000Z	64 \| moderate	16.064 \| fine	71.084 \| fine	34.283 \| good	0.311 \| good	0.535 \| good	0.145 \| good
2025-09-07T19:00:00.000Z	62 \| moderate	14.644 \| fine	65 \| fine	36.151 \| good	0.28 \| good	0.473 \| good	0.14 \| good
2025-09-07T20:00:00.000Z	56 \| moderate	11.529 \| good	51 \| good	37.53 \| good	0.248 \| good	0.411 \| good	0.135 \| good
2025-09-07T21:00:00.000Z	54 \| moderate	10.794 \| good	47.983 \| good	39.604 \| good	0.217 \| good	0.349 \| good	0.13 \| good
2025-09-07T22:00:00.000Z	49 \| good	8.96 \| good	39.757 \| good	39.853 \| good	0.215 \| good	0.45 \| good	0.132 \| good
2025-09-07T23:00:00.000Z	38 \| good	7.246 \| good	32.058 \| good	39.705 \| good	0.214 \| good	0.552 \| good	0.133 \| good
2025-09-08T00:00:00.000Z	44 \| good	5.494 \| good	5.683 \| good	47.261 \| good	0.212 \| good	0.655 \| good	0.135 \| good
2025-09-08T01:00:00.000Z	44 \| good	8.415 \| good	36.933 \| good	30.857 \| good	0.205 \| good	1.563 \| good	0.145 \| good
2025-09-08T02:00:00.000Z	54 \| moderate	11.147 \| good	49.336 \| good	30.027 \| good	0.197 \| good	2.473 \| good	0.155 \| good
2025-09-08T03:00:00.000Z	54 \| moderate	10.957 \| good	48.441 \| good	27.637 \| good	0.19 \| good	3.384 \| good	0.165 \| good

Williston

Get reliable air quality data to drive your business

Williston, North Dakota air quality map: Track AQI near you

0.19ppm

How accurate is North Dakota, USA air quality data?

Air quality data and pollutant measurements for North 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 Williston, North Dakota updated?

The air quality for Williston, North Dakota is updated every hour.

When was the worst air quality at Williston, North Dakota in the last 24 hrs?

The worst air quality in Williston, North Dakota in the last 24 hours was observed at 10:00:00 on 2025-09-05.

When was the best air quality at Williston, North Dakota in the last 24 hrs?

In the last 24 hrs, the best air quality in Williston, North Dakota was observed at 03:00:00 on 2025-09-05.

What is the current air quality in Williston, North Dakota?

The current air quality in Williston, North Dakota is 79, categorized as Moderate based on real-time data.

What pollutant is the most common in Williston, North Dakota?

The most common pollutant in Williston, North Dakota is PM2.5.

What should I do if the air quality in Williston, North Dakota is poor?

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

What is the current concentration of PM_2.5 in Williston, North Dakota?

The current PM_2.5 concentration at Williston, North Dakota is 24.186 μg/m³.

What is the current concentration of PM₁₀ in Williston, North Dakota?

The current PM₁₀ concentration at Williston, North Dakota is 105.694 μg/m³.

What is the current concentration of carbon monoxide (CO) in Williston, North Dakota?

The current carbon monoxide (CO) concentration at Williston, North Dakota is 0.196 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Williston, North Dakota?

The current sulfur dioxide (SO₂) concentration at Williston, North Dakota is 0.172 ppb.

What is the current concentration of ozone (O₃) in Williston, North Dakota?

The current ozone (O₃) concentration at Williston, North Dakota is 23.809 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Williston, North Dakota?

The current nitrogen dioxide (NO₂) concentration at Williston, North Dakota is 1.957 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-04T04:00:00.000Z	49 \| good	9.479 \| good	42.081 \| good	28.645 \| good	0.507 \| good	5.233 \| good	0.216 \| good
2025-09-04T05:00:00.000Z	52 \| moderate	9.548 \| good	43.917 \| good	28.371 \| good	0.564 \| good	4.864 \| good	0.216 \| good
2025-09-04T06:00:00.000Z	52 \| moderate	10.125 \| good	46.655 \| good	25.858 \| good	0.604 \| good	4.568 \| good	0.208 \| good
2025-09-04T07:00:00.000Z	56 \| moderate	11.534 \| good	51.653 \| good	24.574 \| good	0.514 \| good	3.937 \| good	0.202 \| good
2025-09-04T08:00:00.000Z	58 \| moderate	13.008 \| fine	57.691 \| fine	24.729 \| good	0.471 \| good	3.357 \| good	0.197 \| good
2025-09-04T09:00:00.000Z	58 \| moderate	13.147 \| fine	58.06 \| fine	24.402 \| good	0.424 \| good	2.772 \| good	0.195 \| good
2025-09-04T10:00:00.000Z	56 \| moderate	11.737 \| good	51.267 \| good	21.619 \| good	0.365 \| good	2.514 \| good	0.19 \| good
2025-09-04T11:00:00.000Z	52 \| moderate	9.714 \| good	41.068 \| good	20.41 \| good	0.302 \| good	2.091 \| good	0.168 \| good
2025-09-04T12:00:00.000Z	67 \| moderate	18.136 \| fine	78.78 \| fine	15.792 \| good	0.257 \| good	2.035 \| good	0.167 \| good
2025-09-04T13:00:00.000Z	77 \| moderate	22.64 \| fine	99.312 \| fine	24.172 \| good	0.223 \| good	1.5 \| good	0.189 \| good
2025-09-04T14:00:00.000Z	79 \| moderate	24.082 \| fine	105.162 \| fine	25.41 \| good	0.346 \| good	1.152 \| good	0.206 \| good
2025-09-04T15:00:00.000Z	69 \| moderate	18.967 \| fine	82.633 \| fine	27.454 \| good	0.39 \| good	0.831 \| good	0.226 \| good
2025-09-04T16:00:00.000Z	66 \| moderate	16.667 \| fine	72.148 \| fine	29.222 \| good	0.302 \| good	0.631 \| good	0.216 \| good
2025-09-04T17:00:00.000Z	64 \| moderate	15.794 \| fine	71.326 \| fine	29.439 \| good	0.242 \| good	0.584 \| good	0.202 \| good
2025-09-04T18:00:00.000Z	64 \| moderate	16.082 \| fine	70.798 \| fine	30.9 \| good	0.244 \| good	0.456 \| good	0.186 \| good
2025-09-04T19:00:00.000Z	69 \| moderate	18.64 \| fine	84.758 \| fine	31.795 \| good	0.219 \| good	0.31 \| good	0.192 \| good
2025-09-04T20:00:00.000Z	73 \| moderate	20.897 \| fine	91.556 \| fine	31.57 \| good	0.245 \| good	0.395 \| good	0.197 \| good
2025-09-04T21:00:00.000Z	77 \| moderate	22.615 \| fine	97.861 \| fine	32.386 \| good	0.237 \| good	0.355 \| good	0.2 \| good
2025-09-04T22:00:00.000Z	71 \| moderate	20.129 \| fine	87.658 \| fine	31.039 \| good	0.267 \| good	0.383 \| good	0.185 \| good
2025-09-04T23:00:00.000Z	67 \| moderate	18.313 \| fine	81.133 \| fine	30.153 \| good	0.263 \| good	0.591 \| good	0.163 \| good
2025-09-05T00:00:00.000Z	60 \| moderate	14.437 \| fine	65.919 \| fine	28.803 \| good	0.184 \| good	0.52 \| good	0.148 \| good
2025-09-05T01:00:00.000Z	56 \| moderate	11.59 \| good	51.113 \| good	24.96 \| good	0.228 \| good	0.617 \| good	0.143 \| good
2025-09-05T02:00:00.000Z	58 \| moderate	12.917 \| fine	57.549 \| fine	23.977 \| good	0.207 \| good	0.665 \| good	0.137 \| good
2025-09-05T03:00:00.000Z	56 \| moderate	11.843 \| good	54.05 \| good	23.439 \| good	0.197 \| good	0.773 \| good	0.135 \| good
2025-09-05T04:00:00.000Z	62 \| moderate	14.602 \| fine	66.274 \| fine	22.843 \| good	0.144 \| good	0.841 \| good	0.132 \| good
2025-09-05T05:00:00.000Z	62 \| moderate	15.488 \| fine	68.947 \| fine	22.388 \| good	0.142 \| good	0.937 \| good	0.13 \| good
2025-09-05T06:00:00.000Z	67 \| moderate	17.869 \| fine	79.067 \| fine	21.937 \| good	0.161 \| good	0.974 \| good	0.129 \| good
2025-09-05T07:00:00.000Z	71 \| moderate	19.502 \| fine	88.08 \| fine	20.497 \| good	0.184 \| good	1.044 \| good	0.129 \| good
2025-09-05T08:00:00.000Z	71 \| moderate	20.339 \| fine	93.009 \| fine	18.291 \| good	0.205 \| good	1.118 \| good	0.129 \| good
2025-09-05T09:00:00.000Z	81 \| moderate	24.597 \| fine	110.188 \| fine	20.424 \| good	0.21 \| good	1.164 \| good	0.129 \| good
2025-09-05T10:00:00.000Z	88 \| moderate	28.522 \| fine	123.401 \| fine	22.805 \| good	0.208 \| good	1.249 \| good	0.128 \| good
2025-09-05T11:00:00.000Z	84 \| moderate	27.434 \| fine	118.91 \| fine	19.874 \| good	0.21 \| good	1.238 \| good	0.138 \| good
2025-09-05T12:00:00.000Z	81 \| moderate	24.97 \| fine	109.509 \| fine	22.865 \| good	0.221 \| good	1.284 \| good	0.14 \| good
2025-09-05T13:00:00.000Z	71 \| moderate	19.756 \| fine	91.139 \| fine	21.726 \| good	0.22 \| good	1.14 \| good	0.145 \| good
2025-09-05T14:00:00.000Z	66 \| moderate	17.252 \| fine	79.378 \| fine	22.179 \| good	0.208 \| good	0.943 \| good	0.148 \| good
2025-09-05T15:00:00.000Z	66 \| moderate	17.383 \| fine	77.367 \| fine	22.838 \| good	0.221 \| good	0.743 \| good	0.154 \| good
2025-09-05T16:00:00.000Z	62 \| moderate	14.742 \| fine	67.078 \| fine	24.254 \| good	0.197 \| good	0.649 \| good	0.162 \| good
2025-09-05T17:00:00.000Z	62 \| moderate	14.943 \| fine	67.584 \| fine	24.712 \| good	0.214 \| good	0.565 \| good	0.164 \| good
2025-09-05T18:00:00.000Z	58 \| moderate	13.141 \| fine	59.25 \| fine	25.855 \| good	0.17 \| good	0.465 \| good	0.173 \| good
2025-09-05T19:00:00.000Z	64 \| moderate	15.648 \| fine	69.362 \| fine	27.637 \| good	0.173 \| good	0.439 \| good	0.171 \| good
2025-09-05T20:00:00.000Z	64 \| moderate	15.856 \| fine	70.804 \| fine	28.568 \| good	0.174 \| good	0.387 \| good	0.176 \| good
2025-09-05T21:00:00.000Z	64 \| moderate	15.871 \| fine	70.625 \| fine	29.89 \| good	0.221 \| good	0.372 \| good	0.176 \| good
2025-09-05T22:00:00.000Z	64 \| moderate	16.081 \| fine	70.331 \| fine	30.817 \| good	0.166 \| good	0.422 \| good	0.173 \| good
2025-09-05T23:00:00.000Z	60 \| moderate	14.445 \| fine	64.774 \| fine	30.917 \| good	0.195 \| good	0.51 \| good	0.177 \| good
2025-09-06T00:00:00.000Z	64 \| moderate	15.845 \| fine	70.514 \| fine	30.109 \| good	0.239 \| good	0.546 \| good	0.178 \| good
2025-09-06T01:00:00.000Z	67 \| moderate	18.037 \| fine	80.968 \| fine	25.789 \| good	0.171 \| good	1.262 \| good	0.187 \| good
2025-09-06T02:00:00.000Z	79 \| moderate	24.186 \| fine	105.694 \| fine	23.809 \| good	0.172 \| good	1.957 \| good	0.196 \| good
2025-09-06T03:00:00.000Z	81 \| moderate	25.497 \| fine	111.118 \| fine	22.637 \| good	0.176 \| good	2.721 \| good	0.208 \| good
2025-09-06T03:00:00.000Z	79 \| moderate	24.186 \| fine	105.694 \| fine	23.809 \| good	0.172 \| good	1.957 \| good	0.196 \| good
2025-09-06T04:00:00.000Z	88 \| moderate	28.547 \| fine	124.062 \| fine	19.463 \| good	0.07 \| good	4.635 \| good	0.207 \| good
2025-09-06T05:00:00.000Z	90 \| moderate	29.515 \| fine	128.08 \| fine	17.437 \| good	0.083 \| good	6.241 \| good	0.218 \| good
2025-09-06T06:00:00.000Z	94 \| moderate	31.91 \| fine	138.08 \| fine	14.994 \| good	0.097 \| good	7.848 \| good	0.229 \| good
2025-09-06T07:00:00.000Z	103 \| sensitive	36.384 \| moderate	158.503 \| moderate	14.672 \| good	0.099 \| good	8.895 \| good	0.232 \| good
2025-09-06T08:00:00.000Z	110 \| sensitive	38.688 \| moderate	170.666 \| moderate	14.923 \| good	0.102 \| good	9.943 \| good	0.236 \| good
2025-09-06T09:00:00.000Z	103 \| sensitive	36.454 \| moderate	159.009 \| moderate	14.14 \| good	0.104 \| good	10.99 \| good	0.239 \| good
2025-09-06T10:00:00.000Z	96 \| moderate	33.305 \| fine	143.718 \| fine	13.622 \| good	0.103 \| good	10.175 \| good	0.231 \| good
2025-09-06T11:00:00.000Z	92 \| moderate	30.928 \| fine	133.624 \| fine	13.235 \| good	0.101 \| good	9.36 \| good	0.223 \| good
2025-09-06T12:00:00.000Z	96 \| moderate	32.504 \| fine	140.717 \| fine	11.884 \| good	0.1 \| good	8.544 \| good	0.215 \| good
2025-09-06T13:00:00.000Z	84 \| moderate	27.306 \| fine	119.409 \| fine	11.727 \| good	0.097 \| good	6.653 \| good	0.209 \| good
2025-09-06T14:00:00.000Z	79 \| moderate	23.938 \| fine	104.877 \| fine	19.92 \| good	0.094 \| good	4.762 \| good	0.203 \| good
2025-09-06T15:00:00.000Z	82 \| moderate	25.704 \| fine	111.754 \| fine	24.974 \| good	0.091 \| good	2.871 \| good	0.197 \| good
2025-09-06T16:00:00.000Z	84 \| moderate	27.4 \| fine	119.298 \| fine	27.634 \| good	0.151 \| good	2.032 \| good	0.179 \| good
2025-09-06T17:00:00.000Z	82 \| moderate	26.202 \| fine	113.754 \| fine	28.799 \| good	0.21 \| good	1.193 \| good	0.162 \| good
2025-09-06T18:00:00.000Z	82 \| moderate	26.043 \| fine	113.409 \| fine	31.339 \| good	0.269 \| good	0.353 \| good	0.144 \| good
2025-09-06T19:00:00.000Z	79 \| moderate	24.269 \| fine	105.657 \| fine	32.543 \| good	0.283 \| good	0.341 \| good	0.142 \| good
2025-09-06T20:00:00.000Z	73 \| moderate	21.128 \| fine	93.097 \| fine	34.289 \| good	0.297 \| good	0.329 \| good	0.139 \| good
2025-09-06T21:00:00.000Z	71 \| moderate	19.688 \| fine	86.62 \| fine	36.16 \| good	0.312 \| good	0.317 \| good	0.136 \| good
2025-09-06T22:00:00.000Z	67 \| moderate	18.038 \| fine	79.544 \| fine	36.578 \| good	0.317 \| good	0.389 \| good	0.136 \| good
2025-09-06T23:00:00.000Z	69 \| moderate	18.627 \| fine	82.434 \| fine	36.172 \| good	0.322 \| good	0.461 \| good	0.136 \| good
2025-09-07T00:00:00.000Z	73 \| moderate	21.027 \| fine	92.5 \| fine	32.9 \| good	0.327 \| good	0.533 \| good	0.136 \| good
2025-09-07T01:00:00.000Z	77 \| moderate	23.285 \| fine	101.592 \| fine	24.893 \| good	0.301 \| good	1.708 \| good	0.149 \| good
2025-09-07T02:00:00.000Z	86 \| moderate	27.804 \| fine	121.511 \| fine	21.834 \| good	0.275 \| good	2.883 \| good	0.161 \| good
2025-09-07T03:00:00.000Z	79 \| moderate	24.151 \| fine	105.234 \| fine	21.71 \| good	0.249 \| good	4.059 \| good	0.174 \| good
2025-09-07T04:00:00.000Z	77 \| moderate	23.27 \| fine	102.11 \| fine	21.534 \| good	0.253 \| good	3.826 \| good	0.175 \| good
2025-09-07T05:00:00.000Z	79 \| moderate	23.993 \| fine	104.772 \| fine	20.025 \| good	0.256 \| good	3.594 \| good	0.177 \| good
2025-09-07T06:00:00.000Z	84 \| moderate	26.81 \| fine	116.591 \| fine	17.661 \| good	0.26 \| good	3.361 \| good	0.179 \| good
2025-09-07T07:00:00.000Z	92 \| moderate	30.593 \| fine	132.608 \| fine	16.212 \| good	0.387 \| good	3.286 \| good	0.18 \| good
2025-09-07T08:00:00.000Z	97 \| moderate	34.244 \| fine	147.962 \| fine	15.984 \| good	0.515 \| good	3.211 \| good	0.181 \| good
2025-09-07T09:00:00.000Z	100 \| moderate	35.331 \| fine	153.924 \| fine	14.416 \| good	0.643 \| good	3.136 \| good	0.183 \| good
2025-09-07T10:00:00.000Z	92 \| moderate	31.259 \| fine	135.325 \| fine	13.997 \| good	0.606 \| good	3.159 \| good	0.183 \| good
2025-09-07T11:00:00.000Z	81 \| moderate	25.405 \| fine	110.718 \| fine	13.327 \| good	0.57 \| good	3.182 \| good	0.184 \| good
2025-09-07T12:00:00.000Z	81 \| moderate	24.677 \| fine	107.809 \| fine	11.813 \| good	0.534 \| good	3.205 \| good	0.185 \| good
2025-09-07T13:00:00.000Z	71 \| moderate	20.164 \| fine	89.118 \| fine	13.627 \| good	0.505 \| good	2.768 \| good	0.183 \| good
2025-09-07T14:00:00.000Z	67 \| moderate	17.655 \| fine	78.752 \| fine	19.243 \| good	0.477 \| good	2.33 \| good	0.182 \| good
2025-09-07T15:00:00.000Z	67 \| moderate	17.957 \| fine	79.423 \| fine	25.985 \| good	0.449 \| good	1.893 \| good	0.181 \| good
2025-09-07T16:00:00.000Z	66 \| moderate	16.764 \| fine	74.752 \| fine	27.972 \| good	0.403 \| good	1.44 \| good	0.169 \| good
2025-09-07T17:00:00.000Z	62 \| moderate	15.34 \| fine	68.882 \| fine	31.271 \| good	0.357 \| good	0.988 \| good	0.157 \| good
2025-09-07T18:00:00.000Z	64 \| moderate	16.064 \| fine	71.084 \| fine	34.283 \| good	0.311 \| good	0.535 \| good	0.145 \| good
2025-09-07T19:00:00.000Z	62 \| moderate	14.644 \| fine	65 \| fine	36.151 \| good	0.28 \| good	0.473 \| good	0.14 \| good
2025-09-07T20:00:00.000Z	56 \| moderate	11.529 \| good	51 \| good	37.53 \| good	0.248 \| good	0.411 \| good	0.135 \| good
2025-09-07T21:00:00.000Z	54 \| moderate	10.794 \| good	47.983 \| good	39.604 \| good	0.217 \| good	0.349 \| good	0.13 \| good
2025-09-07T22:00:00.000Z	49 \| good	8.96 \| good	39.757 \| good	39.853 \| good	0.215 \| good	0.45 \| good	0.132 \| good
2025-09-07T23:00:00.000Z	38 \| good	7.246 \| good	32.058 \| good	39.705 \| good	0.214 \| good	0.552 \| good	0.133 \| good
2025-09-08T00:00:00.000Z	44 \| good	5.494 \| good	5.683 \| good	47.261 \| good	0.212 \| good	0.655 \| good	0.135 \| good
2025-09-08T01:00:00.000Z	44 \| good	8.415 \| good	36.933 \| good	30.857 \| good	0.205 \| good	1.563 \| good	0.145 \| good
2025-09-08T02:00:00.000Z	54 \| moderate	11.147 \| good	49.336 \| good	30.027 \| good	0.197 \| good	2.473 \| good	0.155 \| good
2025-09-08T03:00:00.000Z	54 \| moderate	10.957 \| good	48.441 \| good	27.637 \| good	0.19 \| good	3.384 \| good	0.165 \| good

Williston, North Dakota live air quality index now

Major air pollutants in Williston, North Dakota

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Williston, North Dakota air quality map: Track AQI near you

Air quality in nearby cities

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Frequently asked questions

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What is the current concentration of PM2.5 in Williston, North Dakota?

What is the current concentration of PM10 in Williston, North Dakota?

What is the current concentration of carbon monoxide (CO) in Williston, North Dakota?

What is the current concentration of sulfur dioxide (SO2) in Williston, North Dakota?

What is the current concentration of ozone (O3) in Williston, North Dakota?

What is the current concentration of nitrogen dioxide (NO2) in Williston, North 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 Williston, North Dakota?

What is the current concentration of PM₁₀ in Williston, North Dakota?

What is the current concentration of sulfur dioxide (SO₂) in Williston, North Dakota?

What is the current concentration of ozone (O₃) in Williston, North Dakota?

What is the current concentration of nitrogen dioxide (NO₂) in Williston, North Dakota?