What are the current PM10 levels at Greenfield, Wisconsin?

The current PM10 levels in Greenfield, Wisconsin are 9.84 μg/m3.

What are the current sulfur dioxide (SO2) levels at Greenfield, Wisconsin?

The current sulfur dioxide (SO2) levels in Greenfield, Wisconsin are 0.352 ppb.

What are the current ozone (O3) levels at Greenfield, Wisconsin?

The current ozone (O3) levels at Greenfield, Wisconsin is 33.287 ppm.

What are the current nitrogen dioxide (NO2) levels at Greenfield, Wisconsin?

The current nitrogen dioxide (NO2) levels at Greenfield, Wisconsin is 4.675 ppb.

Real-time air quality index in Greenfield, Wisconsin today

Q: What are the current PM2.5 levels in Greenfield, Wisconsin?

The measured PM2.5 levels in Greenfield, Wisconsin at present are 3.688 μg/m3.

Stay updated with real-time air quality in Greenfield, 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

Greenfield, Wisconsin

Last updated: ... (Local time)

Common air pollutants in Greenfield, Wisconsin

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

2.50 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

6.47 μg/m³

155

255

425

605+

Ozone (O₃)

37.21 ppb

201

201+

Sulfur Dioxide (SO₂)

0.24 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

5.07 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.20 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Looks like we don't have this data available right now

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Greenfield, Wisconsin

Scroll To Air Quality Map

Track live Greenfield, Wisconsin air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-03-14T01:00:00.000Z	39 \| good	1.683 \| good	6.255 \| good	41.572 \| good	0.317 \| good	3.533 \| good	0.194 \| good
2026-03-14T02:00:00.000Z	38 \| good	1.747 \| good	6.168 \| good	41.011 \| good	0.385 \| good	3.53 \| good	0.195 \| good
2026-03-14T03:00:00.000Z	36 \| good	1.698 \| good	5.319 \| good	38.772 \| good	0.839 \| good	5.579 \| good	0.195 \| good
2026-03-14T04:00:00.000Z	33 \| good	1.796 \| good	5.596 \| good	36.33 \| good	0.83 \| good	7.331 \| good	0.195 \| good
2026-03-14T05:00:00.000Z	34 \| good	1.958 \| good	5.723 \| good	37.141 \| good	0.361 \| good	7.529 \| good	0.287 \| good
2026-03-14T06:00:00.000Z	34 \| good	1.993 \| good	5.647 \| good	36.738 \| good	0.367 \| good	7.003 \| good	0.194 \| good
2026-03-14T07:00:00.000Z	34 \| good	1.983 \| good	5.54 \| good	36.681 \| good	0.391 \| good	6.988 \| good	0.194 \| good
2026-03-14T08:00:00.000Z	30 \| good	2.398 \| good	6.697 \| good	32.438 \| good	0.379 \| good	15.717 \| good	0.288 \| good
2026-03-14T09:00:00.000Z	29 \| good	2.607 \| good	7.3 \| good	31.402 \| good	0.34 \| good	16.051 \| good	0.288 \| good
2026-03-14T10:00:00.000Z	28 \| good	2.69 \| good	7.311 \| good	29.561 \| good	0.157 \| good	17.236 \| good	0.287 \| good
2026-03-14T11:00:00.000Z	22 \| good	2.789 \| good	7.355 \| good	23.993 \| good	0.378 \| good	22.778 \| good	0.38 \| good
2026-03-14T12:00:00.000Z	24 \| good	2.904 \| good	8.057 \| good	26.077 \| good	0.39 \| good	25.016 \| good	0.381 \| good
2026-03-14T13:00:00.000Z	24 \| good	2.919 \| good	7.909 \| good	18.198 \| good	0.366 \| good	25.102 \| good	0.384 \| good
2026-03-14T14:00:00.000Z	23 \| good	3.874 \| good	10.86 \| good	19.803 \| good	0.347 \| good	23.57 \| good	0.474 \| good
2026-03-14T15:00:00.000Z	23 \| good	3.008 \| good	8.85 \| good	24.886 \| good	0.858 \| good	5.094 \| good	0.194 \| good
2026-03-14T16:00:00.000Z	25 \| good	2.444 \| good	6.664 \| good	26.549 \| good	0.404 \| good	2.565 \| good	0.195 \| good
2026-03-14T17:00:00.000Z	27 \| good	2.264 \| good	5.801 \| good	29.082 \| good	0.434 \| good	1.551 \| good	0.195 \| good
2026-03-14T18:00:00.000Z	29 \| good	2.206 \| good	5.641 \| good	30.965 \| good	0.652 \| good	1.648 \| good	0.195 \| good
2026-03-14T19:00:00.000Z	30 \| good	2.216 \| good	5.499 \| good	32.482 \| good	0.513 \| good	1.349 \| good	0.195 \| good
2026-03-14T20:00:00.000Z	31 \| good	2.268 \| good	5.674 \| good	32.87 \| good	0.407 \| good	1.404 \| good	0.195 \| good
2026-03-14T21:00:00.000Z	29 \| good	2.271 \| good	5.443 \| good	31.208 \| good	0.204 \| good	2.152 \| good	0.196 \| good
2026-03-14T22:00:00.000Z	27 \| good	2.276 \| good	5.817 \| good	28.81 \| good	0.192 \| good	1.923 \| good	0.196 \| good
2026-03-14T23:00:00.000Z	29 \| good	2.529 \| good	6.705 \| good	31.369 \| good	0.52 \| good	1.901 \| good	0.196 \| good
2026-03-15T00:00:00.000Z	27 \| good	2.519 \| good	6 \| good	29.252 \| good	0.96 \| good	2.532 \| good	0.196 \| good
2026-03-15T01:00:00.000Z	28 \| good	2.668 \| good	6.721 \| good	29.794 \| good	0.553 \| good	3.059 \| good	0.196 \| good
2026-03-15T02:00:00.000Z	30 \| good	3.379 \| good	8.946 \| good	31.542 \| good	0.653 \| good	2.508 \| good	0.196 \| good
2026-03-15T03:00:00.000Z	33 \| good	3.318 \| good	8.97 \| good	36.46 \| good	0.307 \| good	1.936 \| good	0.195 \| good
2026-03-15T04:00:00.000Z	36 \| good	3.354 \| good	9.18 \| good	38.931 \| good	0.281 \| good	1.752 \| good	0.196 \| good
2026-03-15T05:00:00.000Z	35 \| good	3.215 \| good	8.792 \| good	38.007 \| good	0.78 \| good	1.689 \| good	0.195 \| good
2026-03-15T06:00:00.000Z	37 \| good	3.365 \| good	8.871 \| good	39.596 \| good	0.223 \| good	1.762 \| good	0.196 \| good
2026-03-15T07:00:00.000Z	36 \| good	3.359 \| good	9.277 \| good	39.05 \| good	0.219 \| good	1.723 \| good	0.196 \| good
2026-03-15T08:00:00.000Z	34 \| good	3.5 \| good	9.008 \| good	37.432 \| good	0.23 \| good	1.963 \| good	0.196 \| good
2026-03-15T09:00:00.000Z	32 \| good	3.476 \| good	9.474 \| good	34.505 \| good	0.247 \| good	1.95 \| good	0.194 \| good
2026-03-15T10:00:00.000Z	34 \| good	3.796 \| good	10.064 \| good	37.47 \| good	0.16 \| good	2.235 \| good	0.195 \| good
2026-03-15T11:00:00.000Z	36 \| good	4.027 \| good	10.891 \| good	38.706 \| good	0.224 \| good	3.066 \| good	0.195 \| good
2026-03-15T12:00:00.000Z	34 \| good	3.921 \| good	9.922 \| good	36.785 \| good	0.263 \| good	2.757 \| good	0.194 \| good
2026-03-15T13:00:00.000Z	31 \| good	3.912 \| good	9.785 \| good	33.355 \| good	0.312 \| good	2.703 \| good	0.195 \| good
2026-03-15T14:00:00.000Z	23 \| good	3.544 \| good	10.008 \| good	24.513 \| good	0.273 \| good	3.303 \| good	0.196 \| good
2026-03-15T15:00:00.000Z	22 \| good	3.517 \| good	9.156 \| good	21.643 \| good	0.434 \| good	2.582 \| good	0.196 \| good
2026-03-15T16:00:00.000Z	27 \| good	3.735 \| good	10.038 \| good	29.027 \| good	0.555 \| good	3.023 \| good	0.196 \| good
2026-03-15T17:00:00.000Z	28 \| good	5.108 \| good	14.147 \| good	30.083 \| good	0.314 \| good	8.987 \| good	0.289 \| good
2026-03-15T18:00:00.000Z	27 \| good	5.404 \| good	15.007 \| good	28.723 \| good	0.415 \| good	7.813 \| good	0.289 \| good
2026-03-15T19:00:00.000Z	31 \| good	5.308 \| good	14.836 \| good	33.952 \| good	0.384 \| good	7.049 \| good	0.289 \| good
2026-03-15T20:00:00.000Z	31 \| good	4.5 \| good	11.467 \| good	32.621 \| good	0.272 \| good	5.792 \| good	0.289 \| good
2026-03-15T21:00:00.000Z	31 \| good	3.688 \| good	9.84 \| good	33.287 \| good	0.352 \| good	4.675 \| good	0.196 \| good
2026-03-15T22:00:00.000Z	34 \| good	3.301 \| good	8.524 \| good	37.499 \| good	0.323 \| good	4.148 \| good	0.288 \| good
2026-03-15T23:00:00.000Z	34 \| good	2.5 \| good	6.468 \| good	37.21 \| good	0.239 \| good	5.068 \| good	0.196 \| good
2026-03-16T00:00:00.000Z	28 \| good	1.974 \| good	5.144 \| good	30.44 \| good	0.247 \| good	4.07 \| good	0.196 \| good
2026-03-16T00:00:00.000Z	34 \| good	2.5 \| good	6.468 \| good	37.21 \| good	0.239 \| good	5.068 \| good	0.196 \| good
2026-03-15T22:00:00.000Z	31 \| good	4.395 \| good	18.976 \| good	33.078 \| good	0.384 \| good	8.593 \| good	0.191 \| good
2026-03-15T23:00:00.000Z	29 \| good	4.022 \| good	17.324 \| good	31.105 \| good	0.32 \| good	8.332 \| good	0.192 \| good
2026-03-16T00:00:00.000Z	26 \| good	3.368 \| good	15.02 \| good	28.301 \| good	0.257 \| good	8.07 \| good	0.194 \| good
2026-03-16T01:00:00.000Z	23 \| good	2.6 \| good	10.322 \| good	25.462 \| good	0.238 \| good	6.368 \| good	0.185 \| good
2026-03-16T02:00:00.000Z	25 \| good	0.624 \| good	2.103 \| good	26.552 \| good	0.22 \| good	4.666 \| good	0.177 \| good
2026-03-16T03:00:00.000Z	24 \| good	1.312 \| good	5.103 \| good	25.913 \| good	0.201 \| good	2.964 \| good	0.169 \| good
2026-03-16T04:00:00.000Z	24 \| good	1.842 \| good	7.904 \| good	25.755 \| good	0.212 \| good	2.501 \| good	0.164 \| good
2026-03-16T05:00:00.000Z	23 \| good	1.657 \| good	7.003 \| good	25.441 \| good	0.223 \| good	2.038 \| good	0.159 \| good
2026-03-16T06:00:00.000Z	25 \| good	0.961 \| good	4 \| good	26.976 \| good	0.233 \| good	1.575 \| good	0.154 \| good
2026-03-16T07:00:00.000Z	20 \| good	1.417 \| good	5.904 \| good	21.789 \| good	0.217 \| good	1.303 \| good	0.151 \| good
2026-03-16T08:00:00.000Z	19 \| good	1.517 \| good	6 \| good	20.673 \| good	0.201 \| good	1.031 \| good	0.147 \| good
2026-03-16T09:00:00.000Z	19 \| good	1.551 \| good	6.085 \| good	20.329 \| good	0.186 \| good	0.76 \| good	0.144 \| good
2026-03-16T10:00:00.000Z	21 \| good	1.116 \| good	5 \| good	23.165 \| good	0.174 \| good	0.688 \| good	0.147 \| good
2026-03-16T11:00:00.000Z	19 \| good	1.379 \| good	5.129 \| good	21.388 \| good	0.162 \| good	0.615 \| good	0.149 \| good
2026-03-16T12:00:00.000Z	19 \| good	0.749 \| good	2.904 \| good	20.46 \| good	0.15 \| good	0.543 \| good	0.152 \| good
2026-03-16T13:00:00.000Z	18 \| good	1.084 \| good	4.058 \| good	19.2 \| good	0.174 \| good	0.708 \| good	0.156 \| good
2026-03-16T14:00:00.000Z	19 \| good	0.975 \| good	3.915 \| good	21.119 \| good	0.197 \| good	0.872 \| good	0.159 \| good
2026-03-16T15:00:00.000Z	20 \| good	0.978 \| good	3.915 \| good	22.261 \| good	0.22 \| good	1.036 \| good	0.163 \| good
2026-03-16T16:00:00.000Z	21 \| good	1.012 \| good	3.963 \| good	22.948 \| good	0.253 \| good	0.89 \| good	0.165 \| good
2026-03-16T17:00:00.000Z	20 \| good	1.773 \| good	7.627 \| good	22.381 \| good	0.286 \| good	0.745 \| good	0.168 \| good
2026-03-16T18:00:00.000Z	19 \| good	3.053 \| good	13.405 \| good	20.618 \| good	0.318 \| good	0.599 \| good	0.17 \| good
2026-03-16T19:00:00.000Z	19 \| good	2.237 \| good	9.02 \| good	20.841 \| good	0.323 \| good	0.664 \| good	0.17 \| good
2026-03-16T20:00:00.000Z	19 \| good	1.633 \| good	6.772 \| good	20.956 \| good	0.327 \| good	0.73 \| good	0.171 \| good
2026-03-16T21:00:00.000Z	20 \| good	1.641 \| good	6.793 \| good	21.586 \| good	0.331 \| good	0.796 \| good	0.171 \| good
2026-03-16T22:00:00.000Z	22 \| good	0.25 \| good	0.976 \| good	23.786 \| good	0.313 \| good	1.16 \| good	0.175 \| good
2026-03-16T23:00:00.000Z	23 \| good	1.481 \| good	5.952 \| good	25.05 \| good	0.294 \| good	1.525 \| good	0.178 \| good
2026-03-17T00:00:00.000Z	22 \| good	0.614 \| good	2.085 \| good	24.141 \| good	0.276 \| good	1.889 \| good	0.181 \| good
2026-03-17T01:00:00.000Z	22 \| good	0.35 \| good	1.085 \| good	23.901 \| good	0.271 \| good	1.788 \| good	0.182 \| good
2026-03-17T02:00:00.000Z	22 \| good	0.809 \| good	2.963 \| good	23.507 \| good	0.267 \| good	1.687 \| good	0.183 \| good
2026-03-17T03:00:00.000Z	21 \| good	1.631 \| good	6.725 \| good	22.991 \| good	0.262 \| good	1.585 \| good	0.184 \| good
2026-03-17T04:00:00.000Z	21 \| good	1.173 \| good	4.91 \| good	23.022 \| good	0.258 \| good	1.485 \| good	0.184 \| good
2026-03-17T05:00:00.000Z	21 \| good	2.382 \| good	10 \| good	23.346 \| good	0.254 \| good	1.384 \| good	0.184 \| good
2026-03-17T06:00:00.000Z	40 \| good	2.576 \| good	2.935 \| good	42.769 \| good	0.252 \| good	1.291 \| good	0.184 \| good
2026-03-17T07:00:00.000Z	20 \| good	1.596 \| good	6.692 \| good	21.886 \| good	0.254 \| good	1.214 \| good	0.184 \| good
2026-03-17T08:00:00.000Z	20 \| good	1.469 \| good	5.963 \| good	22.202 \| good	0.258 \| good	1.145 \| good	0.183 \| good
2026-03-17T09:00:00.000Z	19 \| good	1.613 \| good	6.736 \| good	21.24 \| good	0.262 \| good	1.076 \| good	0.183 \| good
2026-03-17T10:00:00.000Z	19 \| good	3.38 \| good	14.756 \| good	21.013 \| good	0.27 \| good	1.124 \| good	0.184 \| good
2026-03-17T11:00:00.000Z	17 \| good	3.289 \| good	14.711 \| good	18.462 \| good	0.278 \| good	1.173 \| good	0.185 \| good
2026-03-17T12:00:00.000Z	38 \| good	2.636 \| good	2.964 \| good	41.431 \| good	0.287 \| good	1.226 \| good	0.185 \| good
2026-03-17T13:00:00.000Z	38 \| good	2.878 \| good	3.212 \| good	41.3 \| good	0.319 \| good	1.391 \| good	0.191 \| good
2026-03-17T14:00:00.000Z	38 \| good	3.177 \| good	3.525 \| good	41.168 \| good	0.351 \| good	1.556 \| good	0.196 \| good
2026-03-17T15:00:00.000Z	38 \| good	3.251 \| good	3.594 \| good	41.037 \| good	0.382 \| good	1.721 \| good	0.201 \| good
2026-03-17T16:00:00.000Z	22 \| good	2.223 \| good	9.014 \| good	24.286 \| good	0.367 \| good	1.488 \| good	0.199 \| good
2026-03-17T17:00:00.000Z	25 \| good	2.274 \| good	9.084 \| good	26.943 \| good	0.353 \| good	1.266 \| good	0.198 \| good
2026-03-17T18:00:00.000Z	40 \| good	3.197 \| good	3.476 \| good	43.484 \| good	0.341 \| good	1.051 \| good	0.196 \| good
2026-03-17T19:00:00.000Z	41 \| good	3.309 \| good	3.589 \| good	44.35 \| good	0.32 \| good	1.096 \| good	0.195 \| good
2026-03-17T20:00:00.000Z	42 \| good	3.535 \| good	3.823 \| good	45.215 \| good	0.299 \| good	1.141 \| good	0.193 \| good
2026-03-17T21:00:00.000Z	43 \| good	3.824 \| good	4.126 \| good	46.081 \| good	0.278 \| good	1.186 \| good	0.192 \| good

Greenfield

Empower business decisions with accurate air quality data

Greenfield, Wisconsin air quality map: Real-time AQI near you

0.28ppm

How accurate is Wisconsin, USA air quality data?

Air quality measurements for Wisconsin, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.

Source: Ambee Data Sources

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Frequently asked questions

How frequently is the air quality data for Greenfield, Wisconsin updated?

Air quality data for Greenfield, Wisconsin is updated on an hourly basis.

When did Greenfield, Wisconsin experience the worst air quality in the last 24 hours?

The worst air quality in Greenfield, Wisconsin was recorded at 06:00:00 on 2026-03-15.

When did Greenfield, Wisconsin have its best air quality in the last 24 hours?

The best air quality in Greenfield, Wisconsin was recorded at 03:00:00 on 2026-03-15.

What is the real-time air quality index for Greenfield, Wisconsin?

The real-time air quality index in Greenfield, Wisconsin is 31, currently categorized as Good.

Which pollutant is found most often in Greenfield, Wisconsin?

The most common pollutant in Greenfield, Wisconsin is O3.

What can I do if the air quality in Greenfield, Wisconsin is poor?

If the air quality in Greenfield, Wisconsin is poor, limit outdoor activities and use a mask to safeguard your health.

What are the current PM_2.5 levels in Greenfield, Wisconsin?

The measured PM_2.5 levels in Greenfield, Wisconsin at present are 3.688 μg/m³.

What are the current PM₁₀ levels at Greenfield, Wisconsin?

The current PM₁₀ levels in Greenfield, Wisconsin are 9.84 μg/m³.

What are the current carbon monoxide (CO) levels at Greenfield, Wisconsin?

The current carbon monoxide (CO) level in Greenfield, Wisconsin is 0.196 ppm.

What are the current sulfur dioxide (SO₂) levels at Greenfield, Wisconsin?

The current sulfur dioxide (SO₂) levels in Greenfield, Wisconsin are 0.352 ppb.

What are the current ozone (O₃) levels at Greenfield, Wisconsin?

The current ozone (O₃) levels at Greenfield, Wisconsin is 33.287 ppm.

What are the current nitrogen dioxide (NO₂) levels at Greenfield, Wisconsin?

The current nitrogen dioxide (NO₂) levels at Greenfield, Wisconsin is 4.675 ppb.

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