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

The current PM10 concentration at Williston, North Dakota is 63.481 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 0.533 ppb.

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

The current ozone (O3) concentration at Williston, North Dakota is 9.757 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 3.221 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)

Good

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)

7.29 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

31.78 μg/m³

155

255

425

605+

Ozone (O₃)

29.29 ppb

201

201+

Sulfur Dioxide (SO₂)

0.28 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

1.50 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.16 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

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
2025-07-18T17:00:00.000Z	56 \| moderate	11.923 \| good	52.562 \| good	35.129 \| good	0.349 \| good	1.534 \| good	0.144 \| good
2025-07-18T18:00:00.000Z	58 \| moderate	12.52 \| fine	56.218 \| fine	38.951 \| good	0.33 \| good	1.194 \| good	0.141 \| good
2025-07-18T19:00:00.000Z	56 \| moderate	11.974 \| good	53.582 \| good	41.531 \| good	0.278 \| good	1.064 \| good	0.14 \| good
2025-07-18T20:00:00.000Z	54 \| moderate	10.903 \| good	47.258 \| good	42.866 \| good	0.233 \| good	0.852 \| good	0.14 \| good
2025-07-18T21:00:00.000Z	54 \| moderate	11.458 \| good	49.818 \| good	45.294 \| good	0.202 \| good	0.693 \| good	0.142 \| good
2025-07-18T22:00:00.000Z	58 \| moderate	12.752 \| fine	57.907 \| fine	46.783 \| good	0.199 \| good	0.725 \| good	0.142 \| good
2025-07-18T23:00:00.000Z	60 \| moderate	14.056 \| fine	62.908 \| fine	44.742 \| good	0.546 \| good	0.713 \| good	0.147 \| good
2025-07-19T00:00:00.000Z	64 \| moderate	15.586 \| fine	68.608 \| fine	40.518 \| good	0.57 \| good	0.717 \| good	0.147 \| good
2025-07-19T01:00:00.000Z	64 \| moderate	16.477 \| fine	73.208 \| fine	37.178 \| good	0.589 \| good	1.519 \| good	0.157 \| good
2025-07-19T02:00:00.000Z	66 \| moderate	16.637 \| fine	75.154 \| fine	32.684 \| good	0.602 \| good	2.303 \| good	0.161 \| good
2025-07-19T03:00:00.000Z	64 \| moderate	15.865 \| fine	69.317 \| fine	29.619 \| good	0.612 \| good	3.192 \| good	0.169 \| good
2025-07-19T04:00:00.000Z	66 \| moderate	17.046 \| fine	76.233 \| fine	26.043 \| good	0.581 \| good	3.67 \| good	0.171 \| good
2025-07-19T05:00:00.000Z	69 \| moderate	18.828 \| fine	82.277 \| fine	25.137 \| good	0.542 \| good	4.068 \| good	0.174 \| good
2025-07-19T06:00:00.000Z	71 \| moderate	19.787 \| fine	86.486 \| fine	23.885 \| good	0.504 \| good	4.487 \| good	0.176 \| good
2025-07-19T07:00:00.000Z	77 \| moderate	23.003 \| fine	101.95 \| fine	22.043 \| good	0.428 \| good	4.42 \| good	0.175 \| good
2025-07-19T08:00:00.000Z	82 \| moderate	25.934 \| fine	116.466 \| fine	21.371 \| good	0.333 \| good	4.326 \| good	0.171 \| good
2025-07-19T09:00:00.000Z	79 \| moderate	23.973 \| fine	107.831 \| fine	19.098 \| good	0.226 \| good	4.169 \| good	0.168 \| good
2025-07-19T10:00:00.000Z	79 \| moderate	24.171 \| fine	106.487 \| fine	17.491 \| good	0.206 \| good	4.032 \| good	0.165 \| good
2025-07-19T11:00:00.000Z	75 \| moderate	21.378 \| fine	104.051 \| fine	15.197 \| good	0.403 \| good	3.534 \| good	0.158 \| good
2025-07-19T12:00:00.000Z	56 \| moderate	12.228 \| fine	54.203 \| good	16.837 \| good	0.509 \| good	3.639 \| good	0.158 \| good
2025-07-19T13:00:00.000Z	56 \| moderate	12.17 \| fine	53.713 \| good	23.575 \| good	0.691 \| good	3.096 \| good	0.155 \| good
2025-07-19T14:00:00.000Z	52 \| moderate	9.818 \| good	43.427 \| good	29.268 \| good	0.886 \| good	2.482 \| good	0.152 \| good
2025-07-19T15:00:00.000Z	44 \| good	8.478 \| good	36.206 \| good	33.372 \| good	1.091 \| good	1.866 \| good	0.15 \| good
2025-07-19T16:00:00.000Z	44 \| good	7.703 \| good	33.119 \| good	36.422 \| good	1.004 \| good	1.512 \| good	0.15 \| good
2025-07-19T17:00:00.000Z	44 \| good	8.018 \| good	35.459 \| good	37.056 \| good	0.917 \| good	1.088 \| good	0.152 \| good
2025-07-19T18:00:00.000Z	38 \| good	6.687 \| good	29.423 \| good	36.642 \| good	0.827 \| good	0.775 \| good	0.151 \| good
2025-07-19T19:00:00.000Z	38 \| good	7.159 \| good	31.19 \| good	37.877 \| good	0.698 \| good	0.846 \| good	0.155 \| good
2025-07-19T20:00:00.000Z	44 \| good	7.529 \| good	32.78 \| good	40.192 \| good	0.575 \| good	0.853 \| good	0.15 \| good
2025-07-19T21:00:00.000Z	49 \| good	9.3 \| good	40.691 \| good	43.164 \| good	0.43 \| good	0.894 \| good	0.152 \| good
2025-07-19T22:00:00.000Z	44 \| good	8.224 \| good	35.286 \| good	44.406 \| good	0.417 \| good	1.109 \| good	0.151 \| good
2025-07-19T23:00:00.000Z	49 \| good	8.505 \| good	37.52 \| good	42.983 \| good	0.609 \| good	1.358 \| good	0.138 \| good
2025-07-20T00:00:00.000Z	56 \| moderate	11.723 \| good	52.003 \| good	41.538 \| good	0.621 \| good	1.614 \| good	0.137 \| good
2025-07-20T01:00:00.000Z	54 \| moderate	10.942 \| good	48.039 \| good	38.679 \| good	0.721 \| good	1.695 \| good	0.138 \| good
2025-07-20T02:00:00.000Z	58 \| moderate	12.915 \| fine	58.338 \| fine	41.088 \| good	0.792 \| good	1.877 \| good	0.139 \| good
2025-07-20T03:00:00.000Z	56 \| moderate	12.103 \| fine	55.576 \| fine	38.597 \| good	0.831 \| good	2.157 \| good	0.142 \| good
2025-07-20T04:00:00.000Z	58 \| moderate	12.987 \| fine	58.084 \| fine	34.044 \| good	0.795 \| good	2.186 \| good	0.143 \| good
2025-07-20T05:00:00.000Z	58 \| moderate	13.344 \| fine	58.992 \| fine	31.873 \| good	0.713 \| good	2.252 \| good	0.143 \| good
2025-07-20T06:00:00.000Z	58 \| moderate	13.016 \| fine	57.722 \| fine	29.186 \| good	0.594 \| good	2.277 \| good	0.145 \| good
2025-07-20T07:00:00.000Z	56 \| moderate	11.907 \| good	53.721 \| good	25.556 \| good	0.544 \| good	2.239 \| good	0.143 \| good
2025-07-20T08:00:00.000Z	56 \| moderate	12.398 \| fine	55.054 \| fine	24.635 \| good	0.496 \| good	2.199 \| good	0.145 \| good
2025-07-20T09:00:00.000Z	56 \| moderate	11.654 \| good	51.332 \| good	24.594 \| good	0.445 \| good	2.153 \| good	0.146 \| good
2025-07-20T10:00:00.000Z	60 \| moderate	13.793 \| fine	60.695 \| fine	23.283 \| good	0.431 \| good	2.313 \| good	0.148 \| good
2025-07-20T11:00:00.000Z	58 \| moderate	13.215 \| fine	58.663 \| fine	22.456 \| good	0.383 \| good	2.315 \| good	0.151 \| good
2025-07-20T12:00:00.000Z	44 \| good	8.291 \| good	34.075 \| good	21.26 \| good	0.342 \| good	2.372 \| good	0.15 \| good
2025-07-20T13:00:00.000Z	49 \| good	8.545 \| good	36.079 \| good	23.001 \| good	0.326 \| good	2.117 \| good	0.153 \| good
2025-07-20T14:00:00.000Z	38 \| good	6.96 \| good	30.529 \| good	26.751 \| good	0.304 \| good	1.788 \| good	0.159 \| good
2025-07-20T15:00:00.000Z	38 \| good	7.294 \| good	31.782 \| good	29.288 \| good	0.285 \| good	1.5 \| good	0.164 \| good
2025-07-20T16:00:00.000Z	49 \| good	9.385 \| good	40.95 \| good	32.594 \| good	0.264 \| good	1.18 \| good	0.157 \| good
2025-07-20T16:00:00.000Z	38 \| good	7.294 \| good	31.782 \| good	29.288 \| good	0.285 \| good	1.5 \| good	0.164 \| good
2025-07-18T13:00:00.000Z	58 \| moderate	12.6 \| fine	56.862 \| fine	14.473 \| good	0.313 \| good	2.959 \| good	0.145 \| good
2025-07-18T14:00:00.000Z	56 \| moderate	11.785 \| good	51.861 \| good	21.561 \| good	0.297 \| good	2.425 \| good	0.145 \| good
2025-07-18T15:00:00.000Z	52 \| moderate	9.848 \| good	43.777 \| good	29.199 \| good	0.281 \| good	1.892 \| good	0.145 \| good
2025-07-18T16:00:00.000Z	56 \| moderate	11.995 \| good	53.632 \| good	34.533 \| good	0.259 \| good	1.499 \| good	0.144 \| good
2025-07-18T17:00:00.000Z	56 \| moderate	11.56 \| good	50.877 \| good	37.499 \| good	0.237 \| good	1.106 \| good	0.142 \| good
2025-07-18T18:00:00.000Z	54 \| moderate	10.962 \| good	48.686 \| good	38.606 \| good	0.216 \| good	0.713 \| good	0.141 \| good
2025-07-18T19:00:00.000Z	56 \| moderate	11.971 \| good	53.252 \| good	40.745 \| good	0.183 \| good	0.627 \| good	0.141 \| good
2025-07-18T20:00:00.000Z	54 \| moderate	10.899 \| good	48.297 \| good	42.647 \| good	0.15 \| good	0.541 \| good	0.141 \| good
2025-07-18T21:00:00.000Z	52 \| moderate	10.241 \| good	45.098 \| good	43.575 \| good	0.117 \| good	0.455 \| good	0.141 \| good
2025-07-18T22:00:00.000Z	54 \| moderate	10.615 \| good	47.032 \| good	44.358 \| good	0.113 \| good	0.513 \| good	0.142 \| good
2025-07-18T23:00:00.000Z	54 \| moderate	11.096 \| good	49 \| good	43.16 \| good	0.108 \| good	0.571 \| good	0.143 \| good
2025-07-19T00:00:00.000Z	56 \| moderate	11.88 \| good	52.632 \| good	42.584 \| good	0.103 \| good	0.63 \| good	0.144 \| good
2025-07-19T01:00:00.000Z	62 \| moderate	14.674 \| fine	65.684 \| fine	39.218 \| good	0.098 \| good	1.326 \| good	0.15 \| good
2025-07-19T02:00:00.000Z	62 \| moderate	14.91 \| fine	66.555 \| fine	36.559 \| good	0.093 \| good	2.023 \| good	0.155 \| good
2025-07-19T03:00:00.000Z	58 \| moderate	13.009 \| fine	58.052 \| fine	33.291 \| good	0.088 \| good	2.719 \| good	0.161 \| good
2025-07-19T04:00:00.000Z	60 \| moderate	14.076 \| fine	63.317 \| fine	28.065 \| good	0.075 \| good	3.081 \| good	0.164 \| good
2025-07-19T05:00:00.000Z	64 \| moderate	16.13 \| fine	71.566 \| fine	25.237 \| good	0.062 \| good	3.443 \| good	0.167 \| good
2025-07-19T06:00:00.000Z	58 \| moderate	12.713 \| fine	57.317 \| fine	24.69 \| good	0.049 \| good	3.805 \| good	0.17 \| good
2025-07-19T07:00:00.000Z	58 \| moderate	12.526 \| fine	56.583 \| fine	21.981 \| good	0.118 \| good	3.749 \| good	0.168 \| good
2025-07-19T08:00:00.000Z	66 \| moderate	16.655 \| fine	74.182 \| fine	22.591 \| good	0.187 \| good	3.694 \| good	0.166 \| good
2025-07-19T09:00:00.000Z	67 \| moderate	17.631 \| fine	78.478 \| fine	22.066 \| good	0.256 \| good	3.638 \| good	0.164 \| good
2025-07-19T10:00:00.000Z	66 \| moderate	17.247 \| fine	76.851 \| fine	21.581 \| good	0.382 \| good	3.718 \| good	0.164 \| good
2025-07-19T11:00:00.000Z	69 \| moderate	18.504 \| fine	81.338 \| fine	21.228 \| good	0.508 \| good	3.799 \| good	0.163 \| good
2025-07-19T12:00:00.000Z	54 \| moderate	11.079 \| good	48.944 \| good	19.491 \| good	0.634 \| good	3.879 \| good	0.163 \| good
2025-07-19T13:00:00.000Z	49 \| good	8.775 \| good	38.834 \| good	24.985 \| good	0.869 \| good	3.187 \| good	0.161 \| good
2025-07-19T14:00:00.000Z	38 \| good	6.883 \| good	30.432 \| good	27.858 \| good	1.103 \| good	2.495 \| good	0.158 \| good
2025-07-19T15:00:00.000Z	33 \| good	6.451 \| good	28.399 \| good	31.854 \| good	1.337 \| good	1.803 \| good	0.156 \| good
2025-07-19T16:00:00.000Z	44 \| good	7.521 \| good	33.11 \| good	34.061 \| good	1.151 \| good	1.389 \| good	0.152 \| good
2025-07-19T17:00:00.000Z	33 \| good	6.183 \| good	27.088 \| good	36.446 \| good	0.964 \| good	0.974 \| good	0.148 \| good
2025-07-19T18:00:00.000Z	35 \| good	5.225 \| good	22.624 \| good	38.116 \| good	0.777 \| good	0.559 \| good	0.145 \| good
2025-07-19T19:00:00.000Z	38 \| good	5.671 \| good	24.236 \| good	40.949 \| good	0.674 \| good	0.566 \| good	0.145 \| good
2025-07-19T20:00:00.000Z	41 \| good	5.703 \| good	24.684 \| good	43.993 \| good	0.571 \| good	0.573 \| good	0.145 \| good
2025-07-19T21:00:00.000Z	42 \| good	6.556 \| good	29.414 \| good	44.6 \| good	0.468 \| good	0.58 \| good	0.146 \| good
2025-07-19T22:00:00.000Z	43 \| good	6.347 \| good	28.075 \| good	45.645 \| good	0.444 \| good	0.882 \| good	0.148 \| good
2025-07-19T23:00:00.000Z	41 \| good	6.101 \| good	27.042 \| good	44.444 \| good	0.419 \| good	1.184 \| good	0.15 \| good
2025-07-20T00:00:00.000Z	40 \| good	6.372 \| good	28.448 \| good	42.862 \| good	0.394 \| good	1.486 \| good	0.153 \| good
2025-07-20T01:00:00.000Z	37 \| good	4.729 \| good	20.54 \| good	39.952 \| good	0.438 \| good	1.541 \| good	0.152 \| good
2025-07-20T02:00:00.000Z	32 \| good	4.603 \| good	19.913 \| good	34.969 \| good	0.482 \| good	1.596 \| good	0.152 \| good
2025-07-20T03:00:00.000Z	31 \| good	3.812 \| good	16.789 \| good	34.077 \| good	0.526 \| good	1.651 \| good	0.151 \| good
2025-07-20T04:00:00.000Z	33 \| good	6.108 \| good	27.031 \| good	33.168 \| good	0.505 \| good	1.723 \| good	0.152 \| good
2025-07-20T05:00:00.000Z	44 \| good	7.864 \| good	34.601 \| good	32.989 \| good	0.483 \| good	1.795 \| good	0.152 \| good
2025-07-20T06:00:00.000Z	40 \| good	7.404 \| good	7.504 \| good	42.696 \| good	0.458 \| good	1.855 \| good	0.152 \| good
2025-07-20T07:00:00.000Z	29 \| good	4.944 \| good	21.558 \| good	30.982 \| good	0.371 \| good	2.046 \| good	0.153 \| good
2025-07-20T08:00:00.000Z	44 \| good	8.399 \| good	37.008 \| good	30.936 \| good	0.28 \| good	2.225 \| good	0.154 \| good
2025-07-20T09:00:00.000Z	28 \| good	4.505 \| good	19.353 \| good	29.59 \| good	0.189 \| good	2.405 \| good	0.156 \| good
2025-07-20T10:00:00.000Z	33 \| good	6.088 \| good	27.213 \| good	28.06 \| good	0.17 \| good	2.421 \| good	0.156 \| good
2025-07-20T11:00:00.000Z	27 \| good	5.3 \| good	22.991 \| good	23.938 \| good	0.151 \| good	2.437 \| good	0.157 \| good
2025-07-20T12:00:00.000Z	44 \| good	7.971 \| good	8.061 \| good	33.144 \| good	0.13 \| good	2.452 \| good	0.158 \| good

Williston

Get reliable air quality data to drive your business

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

0.17ppm

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 08:00:00 on 2025-07-18.

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

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

The current air quality in Williston, North Dakota is 60, 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 14.107 μg/m³.

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

The current PM₁₀ concentration at Williston, North Dakota is 63.481 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 0.139 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 0.533 ppb.

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

The current ozone (O₃) concentration at Williston, North Dakota is 9.757 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 3.221 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-18T17:00:00.000Z	56 \| moderate	11.923 \| good	52.562 \| good	35.129 \| good	0.349 \| good	1.534 \| good	0.144 \| good
2025-07-18T18:00:00.000Z	58 \| moderate	12.52 \| fine	56.218 \| fine	38.951 \| good	0.33 \| good	1.194 \| good	0.141 \| good
2025-07-18T19:00:00.000Z	56 \| moderate	11.974 \| good	53.582 \| good	41.531 \| good	0.278 \| good	1.064 \| good	0.14 \| good
2025-07-18T20:00:00.000Z	54 \| moderate	10.903 \| good	47.258 \| good	42.866 \| good	0.233 \| good	0.852 \| good	0.14 \| good
2025-07-18T21:00:00.000Z	54 \| moderate	11.458 \| good	49.818 \| good	45.294 \| good	0.202 \| good	0.693 \| good	0.142 \| good
2025-07-18T22:00:00.000Z	58 \| moderate	12.752 \| fine	57.907 \| fine	46.783 \| good	0.199 \| good	0.725 \| good	0.142 \| good
2025-07-18T23:00:00.000Z	60 \| moderate	14.056 \| fine	62.908 \| fine	44.742 \| good	0.546 \| good	0.713 \| good	0.147 \| good
2025-07-19T00:00:00.000Z	64 \| moderate	15.586 \| fine	68.608 \| fine	40.518 \| good	0.57 \| good	0.717 \| good	0.147 \| good
2025-07-19T01:00:00.000Z	64 \| moderate	16.477 \| fine	73.208 \| fine	37.178 \| good	0.589 \| good	1.519 \| good	0.157 \| good
2025-07-19T02:00:00.000Z	66 \| moderate	16.637 \| fine	75.154 \| fine	32.684 \| good	0.602 \| good	2.303 \| good	0.161 \| good
2025-07-19T03:00:00.000Z	64 \| moderate	15.865 \| fine	69.317 \| fine	29.619 \| good	0.612 \| good	3.192 \| good	0.169 \| good
2025-07-19T04:00:00.000Z	66 \| moderate	17.046 \| fine	76.233 \| fine	26.043 \| good	0.581 \| good	3.67 \| good	0.171 \| good
2025-07-19T05:00:00.000Z	69 \| moderate	18.828 \| fine	82.277 \| fine	25.137 \| good	0.542 \| good	4.068 \| good	0.174 \| good
2025-07-19T06:00:00.000Z	71 \| moderate	19.787 \| fine	86.486 \| fine	23.885 \| good	0.504 \| good	4.487 \| good	0.176 \| good
2025-07-19T07:00:00.000Z	77 \| moderate	23.003 \| fine	101.95 \| fine	22.043 \| good	0.428 \| good	4.42 \| good	0.175 \| good
2025-07-19T08:00:00.000Z	82 \| moderate	25.934 \| fine	116.466 \| fine	21.371 \| good	0.333 \| good	4.326 \| good	0.171 \| good
2025-07-19T09:00:00.000Z	79 \| moderate	23.973 \| fine	107.831 \| fine	19.098 \| good	0.226 \| good	4.169 \| good	0.168 \| good
2025-07-19T10:00:00.000Z	79 \| moderate	24.171 \| fine	106.487 \| fine	17.491 \| good	0.206 \| good	4.032 \| good	0.165 \| good
2025-07-19T11:00:00.000Z	75 \| moderate	21.378 \| fine	104.051 \| fine	15.197 \| good	0.403 \| good	3.534 \| good	0.158 \| good
2025-07-19T12:00:00.000Z	56 \| moderate	12.228 \| fine	54.203 \| good	16.837 \| good	0.509 \| good	3.639 \| good	0.158 \| good
2025-07-19T13:00:00.000Z	56 \| moderate	12.17 \| fine	53.713 \| good	23.575 \| good	0.691 \| good	3.096 \| good	0.155 \| good
2025-07-19T14:00:00.000Z	52 \| moderate	9.818 \| good	43.427 \| good	29.268 \| good	0.886 \| good	2.482 \| good	0.152 \| good
2025-07-19T15:00:00.000Z	44 \| good	8.478 \| good	36.206 \| good	33.372 \| good	1.091 \| good	1.866 \| good	0.15 \| good
2025-07-19T16:00:00.000Z	44 \| good	7.703 \| good	33.119 \| good	36.422 \| good	1.004 \| good	1.512 \| good	0.15 \| good
2025-07-19T17:00:00.000Z	44 \| good	8.018 \| good	35.459 \| good	37.056 \| good	0.917 \| good	1.088 \| good	0.152 \| good
2025-07-19T18:00:00.000Z	38 \| good	6.687 \| good	29.423 \| good	36.642 \| good	0.827 \| good	0.775 \| good	0.151 \| good
2025-07-19T19:00:00.000Z	38 \| good	7.159 \| good	31.19 \| good	37.877 \| good	0.698 \| good	0.846 \| good	0.155 \| good
2025-07-19T20:00:00.000Z	44 \| good	7.529 \| good	32.78 \| good	40.192 \| good	0.575 \| good	0.853 \| good	0.15 \| good
2025-07-19T21:00:00.000Z	49 \| good	9.3 \| good	40.691 \| good	43.164 \| good	0.43 \| good	0.894 \| good	0.152 \| good
2025-07-19T22:00:00.000Z	44 \| good	8.224 \| good	35.286 \| good	44.406 \| good	0.417 \| good	1.109 \| good	0.151 \| good
2025-07-19T23:00:00.000Z	49 \| good	8.505 \| good	37.52 \| good	42.983 \| good	0.609 \| good	1.358 \| good	0.138 \| good
2025-07-20T00:00:00.000Z	56 \| moderate	11.723 \| good	52.003 \| good	41.538 \| good	0.621 \| good	1.614 \| good	0.137 \| good
2025-07-20T01:00:00.000Z	54 \| moderate	10.942 \| good	48.039 \| good	38.679 \| good	0.721 \| good	1.695 \| good	0.138 \| good
2025-07-20T02:00:00.000Z	58 \| moderate	12.915 \| fine	58.338 \| fine	41.088 \| good	0.792 \| good	1.877 \| good	0.139 \| good
2025-07-20T03:00:00.000Z	56 \| moderate	12.103 \| fine	55.576 \| fine	38.597 \| good	0.831 \| good	2.157 \| good	0.142 \| good
2025-07-20T04:00:00.000Z	58 \| moderate	12.987 \| fine	58.084 \| fine	34.044 \| good	0.795 \| good	2.186 \| good	0.143 \| good
2025-07-20T05:00:00.000Z	58 \| moderate	13.344 \| fine	58.992 \| fine	31.873 \| good	0.713 \| good	2.252 \| good	0.143 \| good
2025-07-20T06:00:00.000Z	58 \| moderate	13.016 \| fine	57.722 \| fine	29.186 \| good	0.594 \| good	2.277 \| good	0.145 \| good
2025-07-20T07:00:00.000Z	56 \| moderate	11.907 \| good	53.721 \| good	25.556 \| good	0.544 \| good	2.239 \| good	0.143 \| good
2025-07-20T08:00:00.000Z	56 \| moderate	12.398 \| fine	55.054 \| fine	24.635 \| good	0.496 \| good	2.199 \| good	0.145 \| good
2025-07-20T09:00:00.000Z	56 \| moderate	11.654 \| good	51.332 \| good	24.594 \| good	0.445 \| good	2.153 \| good	0.146 \| good
2025-07-20T10:00:00.000Z	60 \| moderate	13.793 \| fine	60.695 \| fine	23.283 \| good	0.431 \| good	2.313 \| good	0.148 \| good
2025-07-20T11:00:00.000Z	58 \| moderate	13.215 \| fine	58.663 \| fine	22.456 \| good	0.383 \| good	2.315 \| good	0.151 \| good
2025-07-20T12:00:00.000Z	44 \| good	8.291 \| good	34.075 \| good	21.26 \| good	0.342 \| good	2.372 \| good	0.15 \| good
2025-07-20T13:00:00.000Z	49 \| good	8.545 \| good	36.079 \| good	23.001 \| good	0.326 \| good	2.117 \| good	0.153 \| good
2025-07-20T14:00:00.000Z	38 \| good	6.96 \| good	30.529 \| good	26.751 \| good	0.304 \| good	1.788 \| good	0.159 \| good
2025-07-20T15:00:00.000Z	38 \| good	7.294 \| good	31.782 \| good	29.288 \| good	0.285 \| good	1.5 \| good	0.164 \| good
2025-07-20T16:00:00.000Z	49 \| good	9.385 \| good	40.95 \| good	32.594 \| good	0.264 \| good	1.18 \| good	0.157 \| good
2025-07-20T16:00:00.000Z	38 \| good	7.294 \| good	31.782 \| good	29.288 \| good	0.285 \| good	1.5 \| good	0.164 \| good
2025-07-18T13:00:00.000Z	58 \| moderate	12.6 \| fine	56.862 \| fine	14.473 \| good	0.313 \| good	2.959 \| good	0.145 \| good
2025-07-18T14:00:00.000Z	56 \| moderate	11.785 \| good	51.861 \| good	21.561 \| good	0.297 \| good	2.425 \| good	0.145 \| good
2025-07-18T15:00:00.000Z	52 \| moderate	9.848 \| good	43.777 \| good	29.199 \| good	0.281 \| good	1.892 \| good	0.145 \| good
2025-07-18T16:00:00.000Z	56 \| moderate	11.995 \| good	53.632 \| good	34.533 \| good	0.259 \| good	1.499 \| good	0.144 \| good
2025-07-18T17:00:00.000Z	56 \| moderate	11.56 \| good	50.877 \| good	37.499 \| good	0.237 \| good	1.106 \| good	0.142 \| good
2025-07-18T18:00:00.000Z	54 \| moderate	10.962 \| good	48.686 \| good	38.606 \| good	0.216 \| good	0.713 \| good	0.141 \| good
2025-07-18T19:00:00.000Z	56 \| moderate	11.971 \| good	53.252 \| good	40.745 \| good	0.183 \| good	0.627 \| good	0.141 \| good
2025-07-18T20:00:00.000Z	54 \| moderate	10.899 \| good	48.297 \| good	42.647 \| good	0.15 \| good	0.541 \| good	0.141 \| good
2025-07-18T21:00:00.000Z	52 \| moderate	10.241 \| good	45.098 \| good	43.575 \| good	0.117 \| good	0.455 \| good	0.141 \| good
2025-07-18T22:00:00.000Z	54 \| moderate	10.615 \| good	47.032 \| good	44.358 \| good	0.113 \| good	0.513 \| good	0.142 \| good
2025-07-18T23:00:00.000Z	54 \| moderate	11.096 \| good	49 \| good	43.16 \| good	0.108 \| good	0.571 \| good	0.143 \| good
2025-07-19T00:00:00.000Z	56 \| moderate	11.88 \| good	52.632 \| good	42.584 \| good	0.103 \| good	0.63 \| good	0.144 \| good
2025-07-19T01:00:00.000Z	62 \| moderate	14.674 \| fine	65.684 \| fine	39.218 \| good	0.098 \| good	1.326 \| good	0.15 \| good
2025-07-19T02:00:00.000Z	62 \| moderate	14.91 \| fine	66.555 \| fine	36.559 \| good	0.093 \| good	2.023 \| good	0.155 \| good
2025-07-19T03:00:00.000Z	58 \| moderate	13.009 \| fine	58.052 \| fine	33.291 \| good	0.088 \| good	2.719 \| good	0.161 \| good
2025-07-19T04:00:00.000Z	60 \| moderate	14.076 \| fine	63.317 \| fine	28.065 \| good	0.075 \| good	3.081 \| good	0.164 \| good
2025-07-19T05:00:00.000Z	64 \| moderate	16.13 \| fine	71.566 \| fine	25.237 \| good	0.062 \| good	3.443 \| good	0.167 \| good
2025-07-19T06:00:00.000Z	58 \| moderate	12.713 \| fine	57.317 \| fine	24.69 \| good	0.049 \| good	3.805 \| good	0.17 \| good
2025-07-19T07:00:00.000Z	58 \| moderate	12.526 \| fine	56.583 \| fine	21.981 \| good	0.118 \| good	3.749 \| good	0.168 \| good
2025-07-19T08:00:00.000Z	66 \| moderate	16.655 \| fine	74.182 \| fine	22.591 \| good	0.187 \| good	3.694 \| good	0.166 \| good
2025-07-19T09:00:00.000Z	67 \| moderate	17.631 \| fine	78.478 \| fine	22.066 \| good	0.256 \| good	3.638 \| good	0.164 \| good
2025-07-19T10:00:00.000Z	66 \| moderate	17.247 \| fine	76.851 \| fine	21.581 \| good	0.382 \| good	3.718 \| good	0.164 \| good
2025-07-19T11:00:00.000Z	69 \| moderate	18.504 \| fine	81.338 \| fine	21.228 \| good	0.508 \| good	3.799 \| good	0.163 \| good
2025-07-19T12:00:00.000Z	54 \| moderate	11.079 \| good	48.944 \| good	19.491 \| good	0.634 \| good	3.879 \| good	0.163 \| good
2025-07-19T13:00:00.000Z	49 \| good	8.775 \| good	38.834 \| good	24.985 \| good	0.869 \| good	3.187 \| good	0.161 \| good
2025-07-19T14:00:00.000Z	38 \| good	6.883 \| good	30.432 \| good	27.858 \| good	1.103 \| good	2.495 \| good	0.158 \| good
2025-07-19T15:00:00.000Z	33 \| good	6.451 \| good	28.399 \| good	31.854 \| good	1.337 \| good	1.803 \| good	0.156 \| good
2025-07-19T16:00:00.000Z	44 \| good	7.521 \| good	33.11 \| good	34.061 \| good	1.151 \| good	1.389 \| good	0.152 \| good
2025-07-19T17:00:00.000Z	33 \| good	6.183 \| good	27.088 \| good	36.446 \| good	0.964 \| good	0.974 \| good	0.148 \| good
2025-07-19T18:00:00.000Z	35 \| good	5.225 \| good	22.624 \| good	38.116 \| good	0.777 \| good	0.559 \| good	0.145 \| good
2025-07-19T19:00:00.000Z	38 \| good	5.671 \| good	24.236 \| good	40.949 \| good	0.674 \| good	0.566 \| good	0.145 \| good
2025-07-19T20:00:00.000Z	41 \| good	5.703 \| good	24.684 \| good	43.993 \| good	0.571 \| good	0.573 \| good	0.145 \| good
2025-07-19T21:00:00.000Z	42 \| good	6.556 \| good	29.414 \| good	44.6 \| good	0.468 \| good	0.58 \| good	0.146 \| good
2025-07-19T22:00:00.000Z	43 \| good	6.347 \| good	28.075 \| good	45.645 \| good	0.444 \| good	0.882 \| good	0.148 \| good
2025-07-19T23:00:00.000Z	41 \| good	6.101 \| good	27.042 \| good	44.444 \| good	0.419 \| good	1.184 \| good	0.15 \| good
2025-07-20T00:00:00.000Z	40 \| good	6.372 \| good	28.448 \| good	42.862 \| good	0.394 \| good	1.486 \| good	0.153 \| good
2025-07-20T01:00:00.000Z	37 \| good	4.729 \| good	20.54 \| good	39.952 \| good	0.438 \| good	1.541 \| good	0.152 \| good
2025-07-20T02:00:00.000Z	32 \| good	4.603 \| good	19.913 \| good	34.969 \| good	0.482 \| good	1.596 \| good	0.152 \| good
2025-07-20T03:00:00.000Z	31 \| good	3.812 \| good	16.789 \| good	34.077 \| good	0.526 \| good	1.651 \| good	0.151 \| good
2025-07-20T04:00:00.000Z	33 \| good	6.108 \| good	27.031 \| good	33.168 \| good	0.505 \| good	1.723 \| good	0.152 \| good
2025-07-20T05:00:00.000Z	44 \| good	7.864 \| good	34.601 \| good	32.989 \| good	0.483 \| good	1.795 \| good	0.152 \| good
2025-07-20T06:00:00.000Z	40 \| good	7.404 \| good	7.504 \| good	42.696 \| good	0.458 \| good	1.855 \| good	0.152 \| good
2025-07-20T07:00:00.000Z	29 \| good	4.944 \| good	21.558 \| good	30.982 \| good	0.371 \| good	2.046 \| good	0.153 \| good
2025-07-20T08:00:00.000Z	44 \| good	8.399 \| good	37.008 \| good	30.936 \| good	0.28 \| good	2.225 \| good	0.154 \| good
2025-07-20T09:00:00.000Z	28 \| good	4.505 \| good	19.353 \| good	29.59 \| good	0.189 \| good	2.405 \| good	0.156 \| good
2025-07-20T10:00:00.000Z	33 \| good	6.088 \| good	27.213 \| good	28.06 \| good	0.17 \| good	2.421 \| good	0.156 \| good
2025-07-20T11:00:00.000Z	27 \| good	5.3 \| good	22.991 \| good	23.938 \| good	0.151 \| good	2.437 \| good	0.157 \| good
2025-07-20T12:00:00.000Z	44 \| good	7.971 \| good	8.061 \| good	33.144 \| good	0.13 \| good	2.452 \| good	0.158 \| 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?