What is the current concentration of PM10 in West Allis, Wisconsin?

The current PM10 concentration at West Allis, Wisconsin is 20.126 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in West Allis, Wisconsin?

The current sulfur dioxide (SO2) concentration at West Allis, Wisconsin is 0.255 ppb.

What is the current concentration of ozone (O3) in West Allis, Wisconsin?

The current ozone (O3) concentration at West Allis, Wisconsin is 23.36 ppm.

What is the current concentration of nitrogen dioxide (NO2) in West Allis, Wisconsin?

The current nitrogen dioxide (NO2) concentration at West Allis, Wisconsin is 4.424 ppb.

West Allis, Wisconsin live air quality index now

Q: What is the current concentration of PM2.5 in West Allis, Wisconsin?

The current PM2.5 concentration at West Allis, Wisconsin is 4.443 μg/m3.

Stay updated with real-time air quality in West Allis, Wisconsin 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

West Allis, Wisconsin

Last updated: ... (Local time)

Major air pollutants in West Allis, Wisconsin

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

4.44 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

20.13 μg/m³

155

255

425

605+

Ozone (O₃)

23.36 ppb

201

201+

Sulfur Dioxide (SO₂)

0.26 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.42 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.20 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

West Allis, Wisconsin

Get Live Pollen Counts

West Allis, Wisconsin

Scroll To Air Quality Map

Track live West Allis, Wisconsin air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-08-15T08:00:00.000Z	23 \| good	4.403 \| good	11.077 \| good	25.141 \| good	0.341 \| good	3.295 \| good	0.112 \| good
2026-08-15T09:00:00.000Z	27 \| good	5.409 \| good	20.434 \| good	23.933 \| good	0.328 \| good	3.341 \| good	0.198 \| good
2026-08-15T10:00:00.000Z	38 \| good	6.548 \| good	16.59 \| good	22.759 \| good	0.342 \| good	3.154 \| good	0.196 \| good
2026-08-15T11:00:00.000Z	44 \| good	8.019 \| good	17.085 \| good	23.808 \| good	0.176 \| good	2.852 \| good	0.2 \| good
2026-08-15T12:00:00.000Z	52 \| moderate	9.628 \| good	36.798 \| good	28.509 \| good	0.271 \| good	2.73 \| good	0.202 \| good
2026-08-15T13:00:00.000Z	44 \| good	8.388 \| good	27.995 \| good	28.255 \| good	0.254 \| good	2.762 \| good	0.198 \| good
2026-08-15T14:00:00.000Z	52 \| moderate	9.762 \| good	27.161 \| good	29.133 \| good	0.251 \| good	2.847 \| good	0.2 \| good
2026-08-15T15:00:00.000Z	54 \| moderate	10.711 \| good	22.666 \| good	31.233 \| good	0.258 \| good	2.488 \| good	0.203 \| good
2026-08-15T16:00:00.000Z	49 \| good	9.435 \| good	19.516 \| good	33.664 \| good	1.094 \| good	2.531 \| good	0.205 \| good
2026-08-15T17:00:00.000Z	49 \| good	9.332 \| good	17.124 \| good	37.198 \| good	0.717 \| good	2.497 \| good	0.203 \| good
2026-08-15T18:00:00.000Z	49 \| good	9.046 \| good	14.868 \| good	39.146 \| good	0.627 \| good	3.124 \| good	0.2 \| good
2026-08-15T19:00:00.000Z	44 \| good	7.641 \| good	13.755 \| good	39.423 \| good	0.491 \| good	1.64 \| good	0.112 \| good
2026-08-15T20:00:00.000Z	37 \| good	6.178 \| good	10.599 \| good	39.7 \| good	0.728 \| good	1.613 \| good	0.201 \| good
2026-08-15T21:00:00.000Z	41 \| good	6.22 \| good	11.093 \| good	44.292 \| good	0.719 \| good	2.689 \| good	0.117 \| good
2026-08-15T22:00:00.000Z	43 \| good	5.688 \| good	12.437 \| good	45.912 \| good	0.319 \| good	1.374 \| good	0.203 \| good
2026-08-15T23:00:00.000Z	44 \| good	5.803 \| good	15.814 \| good	46.804 \| good	0.332 \| good	1.833 \| good	0.203 \| good
2026-08-16T00:00:00.000Z	41 \| good	6.779 \| good	15.392 \| good	44.108 \| good	0.336 \| good	2.038 \| good	0.201 \| good
2026-08-16T01:00:00.000Z	49 \| good	9.101 \| good	26.682 \| good	44.109 \| good	0.246 \| good	2.057 \| good	0.201 \| good
2026-08-16T02:00:00.000Z	49 \| good	8.647 \| good	29.651 \| good	42.592 \| good	0.268 \| good	2.146 \| good	0.205 \| good
2026-08-16T03:00:00.000Z	44 \| good	7.885 \| good	28.335 \| good	43.31 \| good	0.251 \| good	2.411 \| good	0.201 \| good
2026-08-16T04:00:00.000Z	40 \| good	6.165 \| good	14.716 \| good	42.527 \| good	0.248 \| good	2.357 \| good	0.199 \| good
2026-08-16T05:00:00.000Z	38 \| good	7.19 \| good	20.673 \| good	35.978 \| good	0.178 \| good	2.405 \| good	0.199 \| good
2026-08-16T06:00:00.000Z	38 \| good	7.089 \| good	23.551 \| good	36.127 \| good	0.178 \| good	2.814 \| good	0.199 \| good
2026-08-16T07:00:00.000Z	38 \| good	7.154 \| good	20.238 \| good	36.691 \| good	0.176 \| good	2.694 \| good	0.199 \| good
2026-08-16T08:00:00.000Z	38 \| good	6.841 \| good	22.335 \| good	33.456 \| good	0.16 \| good	5.744 \| good	0.199 \| good
2026-08-16T09:00:00.000Z	33 \| good	5.917 \| good	17.739 \| good	33.222 \| good	0.157 \| good	5.952 \| good	0.196 \| good
2026-08-16T10:00:00.000Z	28 \| good	5.306 \| good	18.314 \| good	29.883 \| good	0.407 \| good	5.659 \| good	0.196 \| good
2026-08-16T11:00:00.000Z	38 \| good	7.141 \| good	30.852 \| good	30.64 \| good	0.248 \| good	5.481 \| good	0.196 \| good
2026-08-16T12:00:00.000Z	44 \| good	7.759 \| good	34.523 \| good	29.338 \| good	0.236 \| good	5.753 \| good	0.282 \| good
2026-08-16T13:00:00.000Z	33 \| good	5.565 \| good	11.31 \| good	29.857 \| good	0.23 \| good	5.756 \| good	0.282 \| good
2026-08-16T14:00:00.000Z	33 \| good	5.602 \| good	13.342 \| good	30.658 \| good	0.159 \| good	3.878 \| good	0.198 \| good
2026-08-16T15:00:00.000Z	33 \| good	5.729 \| good	14.366 \| good	32.64 \| good	0.165 \| good	4.252 \| good	0.284 \| good
2026-08-16T16:00:00.000Z	31 \| good	5.233 \| good	13.466 \| good	33.6 \| good	0.242 \| good	3.6 \| good	0.282 \| good
2026-08-16T17:00:00.000Z	31 \| good	5.215 \| good	12.164 \| good	33.702 \| good	0.159 \| good	3.449 \| good	0.285 \| good
2026-08-16T18:00:00.000Z	31 \| good	5.244 \| good	15.003 \| good	33.57 \| good	0.158 \| good	3.408 \| good	0.285 \| good
2026-08-16T19:00:00.000Z	31 \| good	5.42 \| good	18.191 \| good	33.113 \| good	0.174 \| good	3.597 \| good	0.285 \| good
2026-08-16T20:00:00.000Z	33 \| good	5.846 \| good	20.141 \| good	35.562 \| good	0.249 \| good	4.121 \| good	0.285 \| good
2026-08-16T21:00:00.000Z	33 \| good	5.777 \| good	15.912 \| good	36.195 \| good	0.25 \| good	3.709 \| good	0.284 \| good
2026-08-16T22:00:00.000Z	33 \| good	6.263 \| good	15.01 \| good	35.917 \| good	0.244 \| good	4.279 \| good	0.285 \| good
2026-08-16T23:00:00.000Z	38 \| good	6.578 \| good	16.205 \| good	35.421 \| good	0.315 \| good	3.937 \| good	0.285 \| good
2026-08-17T00:00:00.000Z	33 \| good	5.704 \| good	21.524 \| good	34.937 \| good	0.243 \| good	5.1 \| good	0.284 \| good
2026-08-17T01:00:00.000Z	33 \| good	6.019 \| good	29.164 \| good	34.3 \| good	0.32 \| good	5.387 \| good	0.287 \| good
2026-08-17T02:00:00.000Z	31 \| good	5.39 \| good	21.019 \| good	33.726 \| good	0.329 \| good	5.273 \| good	0.201 \| good
2026-08-17T03:00:00.000Z	49 \| good	9.093 \| good	40.379 \| good	29.927 \| good	0.235 \| good	3.458 \| good	0.212 \| good
2026-08-17T04:00:00.000Z	28 \| good	4.228 \| good	14.297 \| good	30.015 \| good	0.329 \| good	5.397 \| good	0.199 \| good
2026-08-17T05:00:00.000Z	27 \| good	4.524 \| good	20.067 \| good	26.79 \| good	0.253 \| good	4.86 \| good	0.201 \| good
2026-08-17T06:00:00.000Z	22 \| good	4.443 \| good	20.126 \| good	23.36 \| good	0.255 \| good	4.424 \| good	0.201 \| good
2026-08-17T07:00:00.000Z	22 \| good	4.443 \| good	20.126 \| good	23.36 \| good	0.255 \| good	4.424 \| good	0.201 \| good
2026-08-17T08:00:00.000Z	58 \| moderate	13.203 \| fine	59.602 \| fine	17.461 \| good	0.241 \| good	3.463 \| good	0.201 \| good
2026-08-17T09:00:00.000Z	56 \| moderate	12.149 \| fine	54.45 \| good	17.164 \| good	0.228 \| good	3.176 \| good	0.196 \| good
2026-08-17T10:00:00.000Z	49 \| good	8.884 \| good	39.341 \| good	17.998 \| good	0.215 \| good	3.106 \| good	0.192 \| good
2026-08-17T11:00:00.000Z	52 \| moderate	9.869 \| good	44.001 \| good	17.067 \| good	0.208 \| good	3.411 \| good	0.19 \| good
2026-08-17T12:00:00.000Z	49 \| good	9.276 \| good	41.191 \| good	22.438 \| good	0.207 \| good	3.689 \| good	0.192 \| good
2026-08-17T13:00:00.000Z	38 \| good	7.15 \| good	31.371 \| good	26.184 \| good	0.216 \| good	2.597 \| good	0.186 \| good
2026-08-17T14:00:00.000Z	33 \| good	6.122 \| good	26.97 \| good	29.572 \| good	0.224 \| good	1.447 \| good	0.174 \| good
2026-08-17T15:00:00.000Z	30 \| good	4.799 \| good	20.677 \| good	32.119 \| good	0.223 \| good	1.066 \| good	0.171 \| good
2026-08-17T16:00:00.000Z	34 \| good	3.752 \| good	16.024 \| good	37.37 \| good	0.21 \| good	0.793 \| good	0.168 \| good
2026-08-17T17:00:00.000Z	35 \| good	3.497 \| good	15.612 \| good	37.645 \| good	0.206 \| good	0.654 \| good	0.166 \| good
2026-08-17T18:00:00.000Z	33 \| good	2.63 \| good	10.808 \| good	36.49 \| good	0.209 \| good	0.605 \| good	0.165 \| good
2026-08-17T19:00:00.000Z	33 \| good	2.084 \| good	8.335 \| good	35.52 \| good	0.215 \| good	0.629 \| good	0.165 \| good
2026-08-17T20:00:00.000Z	31 \| good	2.545 \| good	10.372 \| good	33.987 \| good	0.222 \| good	0.68 \| good	0.164 \| good
2026-08-17T21:00:00.000Z	33 \| good	2.628 \| good	10.539 \| good	35.861 \| good	0.232 \| good	0.752 \| good	0.164 \| good
2026-08-17T22:00:00.000Z	36 \| good	2.148 \| good	8.777 \| good	38.594 \| good	0.241 \| good	0.871 \| good	0.164 \| good
2026-08-17T23:00:00.000Z	38 \| good	6.5 \| good	28.745 \| good	40.721 \| good	0.249 \| good	1.134 \| good	0.165 \| good
2026-08-18T00:00:00.000Z	56 \| moderate	12.372 \| fine	55.698 \| fine	37.221 \| good	0.255 \| good	1.861 \| good	0.171 \| good
2026-08-18T01:00:00.000Z	58 \| moderate	12.65 \| fine	56.707 \| fine	34.642 \| good	0.283 \| good	3.961 \| good	0.186 \| good
2026-08-18T02:00:00.000Z	52 \| moderate	9.62 \| good	42.722 \| good	35.077 \| good	0.318 \| good	5.886 \| good	0.201 \| good
2026-08-18T03:00:00.000Z	44 \| good	7.989 \| good	35.269 \| good	37.94 \| good	0.327 \| good	6.285 \| good	0.204 \| good
2026-08-18T04:00:00.000Z	58 \| moderate	12.903 \| fine	58.068 \| fine	41.183 \| good	0.324 \| good	6.481 \| good	0.205 \| good
2026-08-18T05:00:00.000Z	60 \| moderate	14.162 \| fine	63.154 \| fine	37.618 \| good	0.315 \| good	6.404 \| good	0.203 \| good
2026-08-18T06:00:00.000Z	60 \| moderate	13.647 \| fine	60.93 \| fine	32.576 \| good	0.293 \| good	5.888 \| good	0.197 \| good
2026-08-18T07:00:00.000Z	58 \| moderate	12.531 \| fine	56.525 \| fine	29.199 \| good	0.265 \| good	5.391 \| good	0.19 \| good
2026-08-18T08:00:00.000Z	58 \| moderate	12.797 \| fine	57.548 \| fine	26.74 \| good	0.239 \| good	4.915 \| good	0.183 \| good
2026-08-18T09:00:00.000Z	58 \| moderate	13.252 \| fine	59.572 \| fine	25.6 \| good	0.222 \| good	4.475 \| good	0.176 \| good
2026-08-18T10:00:00.000Z	58 \| moderate	12.958 \| fine	58.668 \| fine	16.75 \| good	0.216 \| good	4.17 \| good	0.17 \| good
2026-08-18T11:00:00.000Z	52 \| moderate	10.417 \| good	46.01 \| good	21.874 \| good	0.216 \| good	4.136 \| good	0.167 \| good
2026-08-18T12:00:00.000Z	38 \| good	6.739 \| good	29.959 \| good	27.642 \| good	0.213 \| good	3.863 \| good	0.167 \| good
2026-08-18T13:00:00.000Z	33 \| good	5.615 \| good	24.029 \| good	34.349 \| good	0.216 \| good	3.465 \| good	0.17 \| good
2026-08-18T14:00:00.000Z	37 \| good	3.873 \| good	16.91 \| good	40.239 \| good	0.221 \| good	2.946 \| good	0.17 \| good
2026-08-18T15:00:00.000Z	37 \| good	3.406 \| good	14.753 \| good	39.769 \| good	0.221 \| good	2.106 \| good	0.167 \| good
2026-08-18T16:00:00.000Z	37 \| good	4.637 \| good	20.345 \| good	40.381 \| good	0.253 \| good	1.507 \| good	0.166 \| good
2026-08-18T17:00:00.000Z	39 \| good	6.515 \| good	29.05 \| good	42.447 \| good	0.291 \| good	1.232 \| good	0.168 \| good
2026-08-18T18:00:00.000Z	56 \| moderate	11.73 \| good	52.341 \| good	45.62 \| good	0.321 \| good	1.023 \| good	0.171 \| good
2026-08-18T19:00:00.000Z	49 \| good	9.403 \| good	41.626 \| good	45.917 \| good	0.32 \| good	0.985 \| good	0.172 \| good
2026-08-18T20:00:00.000Z	44 \| good	4.994 \| good	21.675 \| good	47.022 \| good	0.286 \| good	1.079 \| good	0.173 \| good
2026-08-18T21:00:00.000Z	47 \| good	5.122 \| good	21.829 \| good	50.713 \| good	0.247 \| good	1.371 \| good	0.173 \| good
2026-08-18T22:00:00.000Z	46 \| good	5.661 \| good	24.367 \| good	49.558 \| good	0.211 \| good	1.774 \| good	0.173 \| good
2026-08-18T23:00:00.000Z	44 \| good	7.866 \| good	34.851 \| good	46.998 \| good	0.16 \| good	1.741 \| good	0.173 \| good
2026-08-19T00:00:00.000Z	54 \| moderate	11.157 \| good	49.591 \| good	33.789 \| good	0.173 \| good	2.501 \| good	0.179 \| good
2026-08-19T01:00:00.000Z	56 \| moderate	11.928 \| good	52.969 \| good	36.86 \| good	0.199 \| good	3.601 \| good	0.186 \| good
2026-08-19T02:00:00.000Z	77 \| moderate	22.947 \| fine	100.858 \| fine	31.835 \| good	0.217 \| good	4.039 \| good	0.189 \| good
2026-08-19T03:00:00.000Z	66 \| moderate	16.575 \| fine	73.664 \| fine	27.131 \| good	0.22 \| good	4.212 \| good	0.188 \| good
2026-08-19T04:00:00.000Z	64 \| moderate	16.497 \| fine	73.295 \| fine	20.495 \| good	0.222 \| good	4.437 \| good	0.188 \| good
2026-08-19T05:00:00.000Z	58 \| moderate	13.023 \| fine	57.942 \| fine	20.386 \| good	0.214 \| good	4.204 \| good	0.185 \| good
2026-08-19T06:00:00.000Z	26 \| good	3.588 \| good	3.65 \| good	27.817 \| good	0.202 \| good	3.61 \| good	0.181 \| good
2026-08-19T07:00:00.000Z	60 \| moderate	14.202 \| fine	63.443 \| fine	13.806 \| good	0.197 \| good	3.272 \| good	0.179 \| good

West Allis

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West Allis, Wisconsin air quality map: Track AQI near you

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How accurate is Wisconsin, USA air quality data?

Air quality data and pollutant measurements for Wisconsin, 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 West Allis, Wisconsin updated?

The air quality for West Allis, Wisconsin is updated every hour.

When was the worst air quality at West Allis, Wisconsin in the last 24 hrs?

The worst air quality in West Allis, Wisconsin in the last 24 hours was observed at 03:00:00 on 2026-08-17.

When was the best air quality at West Allis, Wisconsin in the last 24 hrs?

In the last 24 hrs, the best air quality in West Allis, Wisconsin was observed at 06:00:00 on 2026-08-17.

What is the current air quality in West Allis, Wisconsin?

The current air quality in West Allis, Wisconsin is 22, categorized as Good based on real-time data.

What pollutant is the most common in West Allis, Wisconsin?

The most common pollutant in West Allis, Wisconsin is PM2.5.

What should I do if the air quality in West Allis, Wisconsin is poor?

If the air quality in West Allis, Wisconsin is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in West Allis, Wisconsin?

The current PM_2.5 concentration at West Allis, Wisconsin is 4.443 μg/m³.

What is the current concentration of PM₁₀ in West Allis, Wisconsin?

The current PM₁₀ concentration at West Allis, Wisconsin is 20.126 μg/m³.

What is the current concentration of carbon monoxide (CO) in West Allis, Wisconsin?

The current carbon monoxide (CO) concentration at West Allis, Wisconsin is 0.201 ppm.

What is the current concentration of sulfur dioxide (SO₂) in West Allis, Wisconsin?

The current sulfur dioxide (SO₂) concentration at West Allis, Wisconsin is 0.255 ppb.

What is the current concentration of ozone (O₃) in West Allis, Wisconsin?

The current ozone (O₃) concentration at West Allis, Wisconsin is 23.36 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in West Allis, Wisconsin?

The current nitrogen dioxide (NO₂) concentration at West Allis, Wisconsin is 4.424 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-08-15T08:00:00.000Z	23 \| good	4.403 \| good	11.077 \| good	25.141 \| good	0.341 \| good	3.295 \| good	0.112 \| good
2026-08-15T09:00:00.000Z	27 \| good	5.409 \| good	20.434 \| good	23.933 \| good	0.328 \| good	3.341 \| good	0.198 \| good
2026-08-15T10:00:00.000Z	38 \| good	6.548 \| good	16.59 \| good	22.759 \| good	0.342 \| good	3.154 \| good	0.196 \| good
2026-08-15T11:00:00.000Z	44 \| good	8.019 \| good	17.085 \| good	23.808 \| good	0.176 \| good	2.852 \| good	0.2 \| good
2026-08-15T12:00:00.000Z	52 \| moderate	9.628 \| good	36.798 \| good	28.509 \| good	0.271 \| good	2.73 \| good	0.202 \| good
2026-08-15T13:00:00.000Z	44 \| good	8.388 \| good	27.995 \| good	28.255 \| good	0.254 \| good	2.762 \| good	0.198 \| good
2026-08-15T14:00:00.000Z	52 \| moderate	9.762 \| good	27.161 \| good	29.133 \| good	0.251 \| good	2.847 \| good	0.2 \| good
2026-08-15T15:00:00.000Z	54 \| moderate	10.711 \| good	22.666 \| good	31.233 \| good	0.258 \| good	2.488 \| good	0.203 \| good
2026-08-15T16:00:00.000Z	49 \| good	9.435 \| good	19.516 \| good	33.664 \| good	1.094 \| good	2.531 \| good	0.205 \| good
2026-08-15T17:00:00.000Z	49 \| good	9.332 \| good	17.124 \| good	37.198 \| good	0.717 \| good	2.497 \| good	0.203 \| good
2026-08-15T18:00:00.000Z	49 \| good	9.046 \| good	14.868 \| good	39.146 \| good	0.627 \| good	3.124 \| good	0.2 \| good
2026-08-15T19:00:00.000Z	44 \| good	7.641 \| good	13.755 \| good	39.423 \| good	0.491 \| good	1.64 \| good	0.112 \| good
2026-08-15T20:00:00.000Z	37 \| good	6.178 \| good	10.599 \| good	39.7 \| good	0.728 \| good	1.613 \| good	0.201 \| good
2026-08-15T21:00:00.000Z	41 \| good	6.22 \| good	11.093 \| good	44.292 \| good	0.719 \| good	2.689 \| good	0.117 \| good
2026-08-15T22:00:00.000Z	43 \| good	5.688 \| good	12.437 \| good	45.912 \| good	0.319 \| good	1.374 \| good	0.203 \| good
2026-08-15T23:00:00.000Z	44 \| good	5.803 \| good	15.814 \| good	46.804 \| good	0.332 \| good	1.833 \| good	0.203 \| good
2026-08-16T00:00:00.000Z	41 \| good	6.779 \| good	15.392 \| good	44.108 \| good	0.336 \| good	2.038 \| good	0.201 \| good
2026-08-16T01:00:00.000Z	49 \| good	9.101 \| good	26.682 \| good	44.109 \| good	0.246 \| good	2.057 \| good	0.201 \| good
2026-08-16T02:00:00.000Z	49 \| good	8.647 \| good	29.651 \| good	42.592 \| good	0.268 \| good	2.146 \| good	0.205 \| good
2026-08-16T03:00:00.000Z	44 \| good	7.885 \| good	28.335 \| good	43.31 \| good	0.251 \| good	2.411 \| good	0.201 \| good
2026-08-16T04:00:00.000Z	40 \| good	6.165 \| good	14.716 \| good	42.527 \| good	0.248 \| good	2.357 \| good	0.199 \| good
2026-08-16T05:00:00.000Z	38 \| good	7.19 \| good	20.673 \| good	35.978 \| good	0.178 \| good	2.405 \| good	0.199 \| good
2026-08-16T06:00:00.000Z	38 \| good	7.089 \| good	23.551 \| good	36.127 \| good	0.178 \| good	2.814 \| good	0.199 \| good
2026-08-16T07:00:00.000Z	38 \| good	7.154 \| good	20.238 \| good	36.691 \| good	0.176 \| good	2.694 \| good	0.199 \| good
2026-08-16T08:00:00.000Z	38 \| good	6.841 \| good	22.335 \| good	33.456 \| good	0.16 \| good	5.744 \| good	0.199 \| good
2026-08-16T09:00:00.000Z	33 \| good	5.917 \| good	17.739 \| good	33.222 \| good	0.157 \| good	5.952 \| good	0.196 \| good
2026-08-16T10:00:00.000Z	28 \| good	5.306 \| good	18.314 \| good	29.883 \| good	0.407 \| good	5.659 \| good	0.196 \| good
2026-08-16T11:00:00.000Z	38 \| good	7.141 \| good	30.852 \| good	30.64 \| good	0.248 \| good	5.481 \| good	0.196 \| good
2026-08-16T12:00:00.000Z	44 \| good	7.759 \| good	34.523 \| good	29.338 \| good	0.236 \| good	5.753 \| good	0.282 \| good
2026-08-16T13:00:00.000Z	33 \| good	5.565 \| good	11.31 \| good	29.857 \| good	0.23 \| good	5.756 \| good	0.282 \| good
2026-08-16T14:00:00.000Z	33 \| good	5.602 \| good	13.342 \| good	30.658 \| good	0.159 \| good	3.878 \| good	0.198 \| good
2026-08-16T15:00:00.000Z	33 \| good	5.729 \| good	14.366 \| good	32.64 \| good	0.165 \| good	4.252 \| good	0.284 \| good
2026-08-16T16:00:00.000Z	31 \| good	5.233 \| good	13.466 \| good	33.6 \| good	0.242 \| good	3.6 \| good	0.282 \| good
2026-08-16T17:00:00.000Z	31 \| good	5.215 \| good	12.164 \| good	33.702 \| good	0.159 \| good	3.449 \| good	0.285 \| good
2026-08-16T18:00:00.000Z	31 \| good	5.244 \| good	15.003 \| good	33.57 \| good	0.158 \| good	3.408 \| good	0.285 \| good
2026-08-16T19:00:00.000Z	31 \| good	5.42 \| good	18.191 \| good	33.113 \| good	0.174 \| good	3.597 \| good	0.285 \| good
2026-08-16T20:00:00.000Z	33 \| good	5.846 \| good	20.141 \| good	35.562 \| good	0.249 \| good	4.121 \| good	0.285 \| good
2026-08-16T21:00:00.000Z	33 \| good	5.777 \| good	15.912 \| good	36.195 \| good	0.25 \| good	3.709 \| good	0.284 \| good
2026-08-16T22:00:00.000Z	33 \| good	6.263 \| good	15.01 \| good	35.917 \| good	0.244 \| good	4.279 \| good	0.285 \| good
2026-08-16T23:00:00.000Z	38 \| good	6.578 \| good	16.205 \| good	35.421 \| good	0.315 \| good	3.937 \| good	0.285 \| good
2026-08-17T00:00:00.000Z	33 \| good	5.704 \| good	21.524 \| good	34.937 \| good	0.243 \| good	5.1 \| good	0.284 \| good
2026-08-17T01:00:00.000Z	33 \| good	6.019 \| good	29.164 \| good	34.3 \| good	0.32 \| good	5.387 \| good	0.287 \| good
2026-08-17T02:00:00.000Z	31 \| good	5.39 \| good	21.019 \| good	33.726 \| good	0.329 \| good	5.273 \| good	0.201 \| good
2026-08-17T03:00:00.000Z	49 \| good	9.093 \| good	40.379 \| good	29.927 \| good	0.235 \| good	3.458 \| good	0.212 \| good
2026-08-17T04:00:00.000Z	28 \| good	4.228 \| good	14.297 \| good	30.015 \| good	0.329 \| good	5.397 \| good	0.199 \| good
2026-08-17T05:00:00.000Z	27 \| good	4.524 \| good	20.067 \| good	26.79 \| good	0.253 \| good	4.86 \| good	0.201 \| good
2026-08-17T06:00:00.000Z	22 \| good	4.443 \| good	20.126 \| good	23.36 \| good	0.255 \| good	4.424 \| good	0.201 \| good
2026-08-17T07:00:00.000Z	22 \| good	4.443 \| good	20.126 \| good	23.36 \| good	0.255 \| good	4.424 \| good	0.201 \| good
2026-08-17T08:00:00.000Z	58 \| moderate	13.203 \| fine	59.602 \| fine	17.461 \| good	0.241 \| good	3.463 \| good	0.201 \| good
2026-08-17T09:00:00.000Z	56 \| moderate	12.149 \| fine	54.45 \| good	17.164 \| good	0.228 \| good	3.176 \| good	0.196 \| good
2026-08-17T10:00:00.000Z	49 \| good	8.884 \| good	39.341 \| good	17.998 \| good	0.215 \| good	3.106 \| good	0.192 \| good
2026-08-17T11:00:00.000Z	52 \| moderate	9.869 \| good	44.001 \| good	17.067 \| good	0.208 \| good	3.411 \| good	0.19 \| good
2026-08-17T12:00:00.000Z	49 \| good	9.276 \| good	41.191 \| good	22.438 \| good	0.207 \| good	3.689 \| good	0.192 \| good
2026-08-17T13:00:00.000Z	38 \| good	7.15 \| good	31.371 \| good	26.184 \| good	0.216 \| good	2.597 \| good	0.186 \| good
2026-08-17T14:00:00.000Z	33 \| good	6.122 \| good	26.97 \| good	29.572 \| good	0.224 \| good	1.447 \| good	0.174 \| good
2026-08-17T15:00:00.000Z	30 \| good	4.799 \| good	20.677 \| good	32.119 \| good	0.223 \| good	1.066 \| good	0.171 \| good
2026-08-17T16:00:00.000Z	34 \| good	3.752 \| good	16.024 \| good	37.37 \| good	0.21 \| good	0.793 \| good	0.168 \| good
2026-08-17T17:00:00.000Z	35 \| good	3.497 \| good	15.612 \| good	37.645 \| good	0.206 \| good	0.654 \| good	0.166 \| good
2026-08-17T18:00:00.000Z	33 \| good	2.63 \| good	10.808 \| good	36.49 \| good	0.209 \| good	0.605 \| good	0.165 \| good
2026-08-17T19:00:00.000Z	33 \| good	2.084 \| good	8.335 \| good	35.52 \| good	0.215 \| good	0.629 \| good	0.165 \| good
2026-08-17T20:00:00.000Z	31 \| good	2.545 \| good	10.372 \| good	33.987 \| good	0.222 \| good	0.68 \| good	0.164 \| good
2026-08-17T21:00:00.000Z	33 \| good	2.628 \| good	10.539 \| good	35.861 \| good	0.232 \| good	0.752 \| good	0.164 \| good
2026-08-17T22:00:00.000Z	36 \| good	2.148 \| good	8.777 \| good	38.594 \| good	0.241 \| good	0.871 \| good	0.164 \| good
2026-08-17T23:00:00.000Z	38 \| good	6.5 \| good	28.745 \| good	40.721 \| good	0.249 \| good	1.134 \| good	0.165 \| good
2026-08-18T00:00:00.000Z	56 \| moderate	12.372 \| fine	55.698 \| fine	37.221 \| good	0.255 \| good	1.861 \| good	0.171 \| good
2026-08-18T01:00:00.000Z	58 \| moderate	12.65 \| fine	56.707 \| fine	34.642 \| good	0.283 \| good	3.961 \| good	0.186 \| good
2026-08-18T02:00:00.000Z	52 \| moderate	9.62 \| good	42.722 \| good	35.077 \| good	0.318 \| good	5.886 \| good	0.201 \| good
2026-08-18T03:00:00.000Z	44 \| good	7.989 \| good	35.269 \| good	37.94 \| good	0.327 \| good	6.285 \| good	0.204 \| good
2026-08-18T04:00:00.000Z	58 \| moderate	12.903 \| fine	58.068 \| fine	41.183 \| good	0.324 \| good	6.481 \| good	0.205 \| good
2026-08-18T05:00:00.000Z	60 \| moderate	14.162 \| fine	63.154 \| fine	37.618 \| good	0.315 \| good	6.404 \| good	0.203 \| good
2026-08-18T06:00:00.000Z	60 \| moderate	13.647 \| fine	60.93 \| fine	32.576 \| good	0.293 \| good	5.888 \| good	0.197 \| good
2026-08-18T07:00:00.000Z	58 \| moderate	12.531 \| fine	56.525 \| fine	29.199 \| good	0.265 \| good	5.391 \| good	0.19 \| good
2026-08-18T08:00:00.000Z	58 \| moderate	12.797 \| fine	57.548 \| fine	26.74 \| good	0.239 \| good	4.915 \| good	0.183 \| good
2026-08-18T09:00:00.000Z	58 \| moderate	13.252 \| fine	59.572 \| fine	25.6 \| good	0.222 \| good	4.475 \| good	0.176 \| good
2026-08-18T10:00:00.000Z	58 \| moderate	12.958 \| fine	58.668 \| fine	16.75 \| good	0.216 \| good	4.17 \| good	0.17 \| good
2026-08-18T11:00:00.000Z	52 \| moderate	10.417 \| good	46.01 \| good	21.874 \| good	0.216 \| good	4.136 \| good	0.167 \| good
2026-08-18T12:00:00.000Z	38 \| good	6.739 \| good	29.959 \| good	27.642 \| good	0.213 \| good	3.863 \| good	0.167 \| good
2026-08-18T13:00:00.000Z	33 \| good	5.615 \| good	24.029 \| good	34.349 \| good	0.216 \| good	3.465 \| good	0.17 \| good
2026-08-18T14:00:00.000Z	37 \| good	3.873 \| good	16.91 \| good	40.239 \| good	0.221 \| good	2.946 \| good	0.17 \| good
2026-08-18T15:00:00.000Z	37 \| good	3.406 \| good	14.753 \| good	39.769 \| good	0.221 \| good	2.106 \| good	0.167 \| good
2026-08-18T16:00:00.000Z	37 \| good	4.637 \| good	20.345 \| good	40.381 \| good	0.253 \| good	1.507 \| good	0.166 \| good
2026-08-18T17:00:00.000Z	39 \| good	6.515 \| good	29.05 \| good	42.447 \| good	0.291 \| good	1.232 \| good	0.168 \| good
2026-08-18T18:00:00.000Z	56 \| moderate	11.73 \| good	52.341 \| good	45.62 \| good	0.321 \| good	1.023 \| good	0.171 \| good
2026-08-18T19:00:00.000Z	49 \| good	9.403 \| good	41.626 \| good	45.917 \| good	0.32 \| good	0.985 \| good	0.172 \| good
2026-08-18T20:00:00.000Z	44 \| good	4.994 \| good	21.675 \| good	47.022 \| good	0.286 \| good	1.079 \| good	0.173 \| good
2026-08-18T21:00:00.000Z	47 \| good	5.122 \| good	21.829 \| good	50.713 \| good	0.247 \| good	1.371 \| good	0.173 \| good
2026-08-18T22:00:00.000Z	46 \| good	5.661 \| good	24.367 \| good	49.558 \| good	0.211 \| good	1.774 \| good	0.173 \| good
2026-08-18T23:00:00.000Z	44 \| good	7.866 \| good	34.851 \| good	46.998 \| good	0.16 \| good	1.741 \| good	0.173 \| good
2026-08-19T00:00:00.000Z	54 \| moderate	11.157 \| good	49.591 \| good	33.789 \| good	0.173 \| good	2.501 \| good	0.179 \| good
2026-08-19T01:00:00.000Z	56 \| moderate	11.928 \| good	52.969 \| good	36.86 \| good	0.199 \| good	3.601 \| good	0.186 \| good
2026-08-19T02:00:00.000Z	77 \| moderate	22.947 \| fine	100.858 \| fine	31.835 \| good	0.217 \| good	4.039 \| good	0.189 \| good
2026-08-19T03:00:00.000Z	66 \| moderate	16.575 \| fine	73.664 \| fine	27.131 \| good	0.22 \| good	4.212 \| good	0.188 \| good
2026-08-19T04:00:00.000Z	64 \| moderate	16.497 \| fine	73.295 \| fine	20.495 \| good	0.222 \| good	4.437 \| good	0.188 \| good
2026-08-19T05:00:00.000Z	58 \| moderate	13.023 \| fine	57.942 \| fine	20.386 \| good	0.214 \| good	4.204 \| good	0.185 \| good
2026-08-19T06:00:00.000Z	26 \| good	3.588 \| good	3.65 \| good	27.817 \| good	0.202 \| good	3.61 \| good	0.181 \| good
2026-08-19T07:00:00.000Z	60 \| moderate	14.202 \| fine	63.443 \| fine	13.806 \| good	0.197 \| good	3.272 \| good	0.179 \| good

West Allis, Wisconsin live air quality index now

Major air pollutants in West Allis, Wisconsin

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Air quality in nearby cities

Wauwatosa, Wisconsin

Greenfield, Wisconsin

Greendale, Wisconsin

Milwaukee, Wisconsin

New Berlin, Wisconsin

Brookfield, Wisconsin

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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 West Allis, Wisconsin?

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What is the current concentration of nitrogen dioxide (NO₂) in West Allis, Wisconsin?