What are the current PM10 levels at Greenfield, Wisconsin?

The current PM10 levels in Greenfield, Wisconsin are 36.119 μg/m3.

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

The current sulfur dioxide (SO2) levels in Greenfield, Wisconsin are 0.987 ppb.

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

The current ozone (O3) levels at Greenfield, Wisconsin is 37.815 ppm.

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

The current nitrogen dioxide (NO2) levels at Greenfield, Wisconsin is 5.249 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 16.142 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)

Moderate

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)

16.14 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

36.12 μg/m³

155

255

425

605+

Ozone (O₃)

37.81 ppb

201

201+

Sulfur Dioxide (SO₂)

0.99 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

5.25 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.29 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Greenfield, Wisconsin

Get Live Pollen Counts

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
2026-10-20T21:00:00.000Z	36 \| good	5.061 \| good	17.949 \| good	39.321 \| good	0.578 \| good	4.835 \| good	0.291 \| good
2026-10-20T22:00:00.000Z	38 \| good	5.27 \| good	17.731 \| good	40.978 \| good	0.72 \| good	2.64 \| good	0.291 \| good
2026-10-20T23:00:00.000Z	39 \| good	5.565 \| good	15.935 \| good	42.01 \| good	0.467 \| good	3.647 \| good	0.293 \| good
2026-10-21T00:00:00.000Z	39 \| good	5.406 \| good	14.711 \| good	41.889 \| good	0.356 \| good	7.474 \| good	0.296 \| good
2026-10-21T01:00:00.000Z	41 \| good	6.005 \| good	13.593 \| good	44.144 \| good	0.295 \| good	11.562 \| good	0.298 \| good
2026-10-21T02:00:00.000Z	36 \| good	6.345 \| good	15.281 \| good	39.469 \| good	0.236 \| good	13.02 \| good	0.299 \| good
2026-10-21T03:00:00.000Z	62 \| moderate	15.273 \| fine	68.502 \| fine	26.129 \| good	1.529 \| good	14.821 \| good	0.218 \| good
2026-10-21T04:00:00.000Z	52 \| moderate	9.698 \| good	22.471 \| good	23.414 \| good	0.518 \| good	25.171 \| good	0.479 \| good
2026-10-21T05:00:00.000Z	58 \| moderate	13.334 \| fine	21.641 \| good	23.35 \| good	1.09 \| good	22.087 \| good	0.388 \| good
2026-10-21T06:00:00.000Z	64 \| moderate	15.608 \| fine	24.054 \| good	25.117 \| good	0.866 \| good	21.935 \| good	0.387 \| good
2026-10-21T07:00:00.000Z	64 \| moderate	15.762 \| fine	26.197 \| good	15.277 \| good	0.769 \| good	21.52 \| good	0.388 \| good
2026-10-21T08:00:00.000Z	62 \| moderate	15.483 \| fine	21.238 \| good	12.236 \| good	0.642 \| good	16.454 \| good	0.296 \| good
2026-10-21T09:00:00.000Z	64 \| moderate	16.14 \| fine	21.075 \| good	4.441 \| good	0.638 \| good	16.407 \| good	0.294 \| good
2026-10-21T10:00:00.000Z	62 \| moderate	15.311 \| fine	23.833 \| good	11.081 \| good	0.837 \| good	21.412 \| good	0.388 \| good
2026-10-21T11:00:00.000Z	62 \| moderate	15.245 \| fine	24.753 \| good	9.188 \| good	0.983 \| good	25.879 \| good	0.573 \| good
2026-10-21T12:00:00.000Z	66 \| moderate	16.62 \| fine	27.331 \| good	6.735 \| good	0.993 \| good	27.84 \| good	0.574 \| good
2026-10-21T13:00:00.000Z	66 \| moderate	16.64 \| fine	28.816 \| good	7.016 \| good	1.01 \| good	27.384 \| good	0.574 \| good
2026-10-21T14:00:00.000Z	77 \| moderate	23.032 \| fine	36.026 \| good	10.036 \| good	1.187 \| good	26.938 \| good	0.581 \| good
2026-10-21T15:00:00.000Z	82 \| moderate	25.511 \| fine	49.829 \| good	11.991 \| good	0.993 \| good	24.68 \| good	0.58 \| good
2026-10-21T16:00:00.000Z	77 \| moderate	22.945 \| fine	49.451 \| good	16.46 \| good	1.401 \| good	24.419 \| good	0.479 \| good
2026-10-21T17:00:00.000Z	64 \| moderate	15.582 \| fine	40.725 \| good	22.803 \| good	1.294 \| good	24.827 \| good	0.385 \| good
2026-10-21T18:00:00.000Z	56 \| moderate	11.733 \| good	37.065 \| good	25.117 \| good	1.133 \| good	22.381 \| good	0.384 \| good
2026-10-21T19:00:00.000Z	56 \| moderate	11.95 \| good	35.733 \| good	33.786 \| good	0.989 \| good	22.378 \| good	0.384 \| good
2026-10-21T20:00:00.000Z	44 \| good	7.679 \| good	27.473 \| good	44.835 \| good	0.983 \| good	18.158 \| good	0.384 \| good
2026-10-21T21:00:00.000Z	44 \| good	7.853 \| good	32.137 \| good	41.592 \| good	1.185 \| good	18.649 \| good	0.384 \| good
2026-10-21T22:00:00.000Z	44 \| good	8.3 \| good	30.62 \| good	31.483 \| good	0.852 \| good	18.221 \| good	0.384 \| good
2026-10-21T23:00:00.000Z	49 \| good	8.947 \| good	30.3 \| good	46.38 \| good	0.88 \| good	19.075 \| good	0.385 \| good
2026-10-22T00:00:00.000Z	52 \| moderate	10.288 \| good	34.061 \| good	32.908 \| good	0.604 \| good	27.27 \| good	0.48 \| good
2026-10-22T01:00:00.000Z	58 \| moderate	13.415 \| fine	39.217 \| good	38.987 \| good	0.474 \| good	27.853 \| good	0.484 \| good
2026-10-22T02:00:00.000Z	64 \| moderate	16.337 \| fine	43.117 \| good	34.994 \| good	0.382 \| good	39.853 \| good	0.575 \| good
2026-10-22T03:00:00.000Z	54 \| moderate	11.282 \| good	50.471 \| good	18.233 \| good	1.042 \| good	33.871 \| good	0.335 \| good
2026-10-22T04:00:00.000Z	69 \| moderate	19.194 \| fine	43.808 \| good	20.354 \| good	0.3 \| good	34.713 \| good	0.669 \| good
2026-10-22T05:00:00.000Z	71 \| moderate	19.915 \| fine	44.3 \| good	17.368 \| good	0.372 \| good	27.994 \| good	0.576 \| good
2026-10-22T06:00:00.000Z	71 \| moderate	19.76 \| fine	40.859 \| good	13.283 \| good	0.351 \| good	22.679 \| good	0.396 \| good
2026-10-22T07:00:00.000Z	71 \| moderate	19.769 \| fine	41.34 \| good	11.789 \| good	0.35 \| good	22.564 \| good	0.396 \| good
2026-10-22T08:00:00.000Z	66 \| moderate	17.407 \| fine	41.536 \| good	10.668 \| good	0.476 \| good	23.954 \| good	0.392 \| good
2026-10-22T09:00:00.000Z	62 \| moderate	15.224 \| fine	37.553 \| good	11.376 \| good	0.455 \| good	24.079 \| good	0.391 \| good
2026-10-22T10:00:00.000Z	60 \| moderate	14.437 \| fine	35.059 \| good	6.171 \| good	0.418 \| good	25.091 \| good	0.39 \| good
2026-10-22T11:00:00.000Z	60 \| moderate	14.013 \| fine	34.052 \| good	10.984 \| good	0.422 \| good	27.075 \| good	0.578 \| good
2026-10-22T12:00:00.000Z	60 \| moderate	14.094 \| fine	36.245 \| good	5.882 \| good	0.326 \| good	32.138 \| good	0.585 \| good
2026-10-22T13:00:00.000Z	60 \| moderate	14.206 \| fine	39.43 \| good	4.736 \| good	0.33 \| good	32.368 \| good	0.581 \| good
2026-10-22T14:00:00.000Z	60 \| moderate	14.29 \| fine	35.7 \| good	15.664 \| good	0.557 \| good	31.714 \| good	0.674 \| good
2026-10-22T15:00:00.000Z	62 \| moderate	15.132 \| fine	40.206 \| good	13.35 \| good	0.35 \| good	21.812 \| good	0.583 \| good
2026-10-22T16:00:00.000Z	64 \| moderate	15.511 \| fine	41.095 \| good	16.932 \| good	0.579 \| good	9.363 \| good	0.302 \| good
2026-10-22T17:00:00.000Z	66 \| moderate	16.761 \| fine	42.763 \| good	24.156 \| good	0.651 \| good	13.013 \| good	0.388 \| good
2026-10-22T18:00:00.000Z	64 \| moderate	15.74 \| fine	40.866 \| good	25.005 \| good	0.724 \| good	5.745 \| good	0.294 \| good
2026-10-22T19:00:00.000Z	62 \| moderate	14.819 \| fine	35.448 \| good	36.332 \| good	0.77 \| good	6.186 \| good	0.291 \| good
2026-10-22T20:00:00.000Z	64 \| moderate	16.142 \| fine	36.119 \| good	37.815 \| good	0.987 \| good	5.249 \| good	0.291 \| good
2026-10-22T20:00:00.000Z	64 \| moderate	16.142 \| fine	36.119 \| good	37.815 \| good	0.987 \| good	5.249 \| good	0.291 \| good
2026-10-22T21:00:00.000Z	62 \| moderate	14.98 \| fine	66.91 \| fine	44.19 \| good	0.662 \| good	10.036 \| good	0.257 \| good
2026-10-22T22:00:00.000Z	64 \| moderate	16.095 \| fine	71.573 \| fine	37.547 \| good	0.653 \| good	13.75 \| good	0.278 \| good
2026-10-22T23:00:00.000Z	67 \| moderate	18.295 \| fine	81.294 \| fine	31.487 \| good	0.649 \| good	20.209 \| good	0.312 \| good
2026-10-23T00:00:00.000Z	66 \| moderate	17.278 \| fine	77.058 \| fine	30.445 \| good	0.684 \| good	24.611 \| good	0.335 \| good
2026-10-23T01:00:00.000Z	62 \| moderate	15.061 \| fine	67.49 \| fine	29.37 \| good	0.732 \| good	26.762 \| good	0.342 \| good
2026-10-23T02:00:00.000Z	62 \| moderate	14.89 \| fine	65.963 \| fine	28.05 \| good	0.776 \| good	27.624 \| good	0.34 \| good
2026-10-23T03:00:00.000Z	62 \| moderate	15.049 \| fine	67.26 \| fine	22.328 \| good	0.811 \| good	28 \| good	0.335 \| good
2026-10-23T04:00:00.000Z	62 \| moderate	14.973 \| fine	66.961 \| fine	21.604 \| good	0.836 \| good	28.389 \| good	0.333 \| good
2026-10-23T05:00:00.000Z	62 \| moderate	15.18 \| fine	67.357 \| fine	19.254 \| good	0.847 \| good	27.417 \| good	0.327 \| good
2026-10-23T06:00:00.000Z	62 \| moderate	14.783 \| fine	65.483 \| fine	21.996 \| good	0.869 \| good	26.41 \| good	0.318 \| good
2026-10-23T07:00:00.000Z	66 \| moderate	16.582 \| fine	73.24 \| fine	20.181 \| good	0.914 \| good	26.572 \| good	0.313 \| good
2026-10-23T08:00:00.000Z	66 \| moderate	16.685 \| fine	73.449 \| fine	18.03 \| good	0.987 \| good	27.547 \| good	0.311 \| good
2026-10-23T09:00:00.000Z	64 \| moderate	16.242 \| fine	72.763 \| fine	18.477 \| good	1.094 \| good	29.068 \| good	0.311 \| good
2026-10-23T10:00:00.000Z	62 \| moderate	15.376 \| fine	68.854 \| fine	19.481 \| good	1.253 \| good	30.67 \| good	0.314 \| good
2026-10-23T11:00:00.000Z	66 \| moderate	16.711 \| fine	73.625 \| fine	18.206 \| good	1.442 \| good	32.716 \| good	0.321 \| good
2026-10-23T12:00:00.000Z	69 \| moderate	18.558 \| fine	81.713 \| fine	15.829 \| good	1.675 \| good	35.468 \| good	0.335 \| good
2026-10-23T13:00:00.000Z	71 \| moderate	19.992 \| fine	87.537 \| fine	19.387 \| good	1.928 \| good	33.692 \| good	0.358 \| good
2026-10-23T14:00:00.000Z	75 \| moderate	22.473 \| fine	98.788 \| fine	28.491 \| good	2.303 \| good	30.087 \| good	0.368 \| good
2026-10-23T15:00:00.000Z	73 \| moderate	21.089 \| fine	92.97 \| fine	31.923 \| good	2.595 \| good	27.209 \| good	0.372 \| good
2026-10-23T16:00:00.000Z	71 \| moderate	19.548 \| fine	85.896 \| fine	33.828 \| good	2.922 \| good	24.667 \| good	0.358 \| good
2026-10-23T17:00:00.000Z	71 \| moderate	19.708 \| fine	87.139 \| fine	36.618 \| good	2.925 \| good	21.713 \| good	0.335 \| good
2026-10-23T18:00:00.000Z	71 \| moderate	19.612 \| fine	85.797 \| fine	42.365 \| good	2.685 \| good	18.545 \| good	0.31 \| good
2026-10-23T19:00:00.000Z	69 \| moderate	18.923 \| fine	83.75 \| fine	44.733 \| good	2.202 \| good	16.353 \| good	0.29 \| good
2026-10-23T20:00:00.000Z	69 \| moderate	18.531 \| fine	81.628 \| fine	46.826 \| good	1.935 \| good	15.489 \| good	0.277 \| good
2026-10-23T21:00:00.000Z	71 \| moderate	19.687 \| fine	86.808 \| fine	42.536 \| good	1.942 \| good	15.13 \| good	0.264 \| good
2026-10-23T22:00:00.000Z	71 \| moderate	19.652 \| fine	86.808 \| fine	35.715 \| good	1.946 \| good	18.09 \| good	0.27 \| good
2026-10-23T23:00:00.000Z	69 \| moderate	19.451 \| fine	85.277 \| fine	34.32 \| good	2.019 \| good	20.963 \| good	0.278 \| good
2026-10-24T00:00:00.000Z	67 \| moderate	17.718 \| fine	78.66 \| fine	37.445 \| good	2.067 \| good	20.768 \| good	0.277 \| good
2026-10-24T01:00:00.000Z	62 \| moderate	14.786 \| fine	65.665 \| fine	36.688 \| good	2.048 \| good	19.253 \| good	0.267 \| good
2026-10-24T02:00:00.000Z	60 \| moderate	14.309 \| fine	63.558 \| fine	36.502 \| good	1.956 \| good	17.625 \| good	0.256 \| good
2026-10-24T03:00:00.000Z	62 \| moderate	14.814 \| fine	65.7 \| fine	34.37 \| good	1.806 \| good	16.292 \| good	0.246 \| good
2026-10-24T04:00:00.000Z	66 \| moderate	16.501 \| fine	73.35 \| fine	29.907 \| good	1.64 \| good	14.585 \| good	0.236 \| good
2026-10-24T05:00:00.000Z	67 \| moderate	18.456 \| fine	81.495 \| fine	26.851 \| good	1.456 \| good	12.316 \| good	0.227 \| good
2026-10-24T06:00:00.000Z	71 \| moderate	19.729 \| fine	86.959 \| fine	26.403 \| good	1.342 \| good	11.046 \| good	0.222 \| good
2026-10-24T07:00:00.000Z	73 \| moderate	21.105 \| fine	92.682 \| fine	23.473 \| good	1.338 \| good	10.676 \| good	0.223 \| good
2026-10-24T08:00:00.000Z	75 \| moderate	22.114 \| fine	97.023 \| fine	19.322 \| good	1.404 \| good	10.556 \| good	0.224 \| good
2026-10-24T09:00:00.000Z	73 \| moderate	21.11 \| fine	92.952 \| fine	16.806 \| good	1.477 \| good	10.333 \| good	0.226 \| good
2026-10-24T10:00:00.000Z	67 \| moderate	18.402 \| fine	81.412 \| fine	17.298 \| good	1.529 \| good	10.076 \| good	0.227 \| good
2026-10-24T11:00:00.000Z	66 \| moderate	17.471 \| fine	77.371 \| fine	14.795 \| good	1.549 \| good	10.055 \| good	0.228 \| good
2026-10-24T12:00:00.000Z	66 \| moderate	16.629 \| fine	73.818 \| fine	16.104 \| good	1.55 \| good	11.014 \| good	0.232 \| good
2026-10-24T13:00:00.000Z	62 \| moderate	15.316 \| fine	68.873 \| fine	18.268 \| good	1.538 \| good	12.563 \| good	0.238 \| good
2026-10-24T14:00:00.000Z	64 \| moderate	16.134 \| fine	71.48 \| fine	26.232 \| good	1.515 \| good	12.422 \| good	0.245 \| good
2026-10-24T15:00:00.000Z	60 \| moderate	14.4 \| fine	64.971 \| fine	32.426 \| good	1.542 \| good	11.561 \| good	0.243 \| good
2026-10-24T16:00:00.000Z	56 \| moderate	12.216 \| fine	54.635 \| good	34.599 \| good	1.49 \| good	11.118 \| good	0.243 \| good
2026-10-24T17:00:00.000Z	54 \| moderate	11.323 \| good	50.222 \| good	39.002 \| good	1.347 \| good	10.802 \| good	0.242 \| good
2026-10-24T18:00:00.000Z	54 \| moderate	11.131 \| good	49.684 \| good	43.81 \| good	1.318 \| good	10.181 \| good	0.236 \| good
2026-10-24T19:00:00.000Z	54 \| moderate	11.37 \| good	50.511 \| good	46.811 \| good	1.286 \| good	9.747 \| good	0.23 \| good
2026-10-24T20:00:00.000Z	58 \| moderate	12.532 \| fine	56.886 \| fine	48.914 \| good	1.28 \| good	10.133 \| good	0.228 \| good

Greenfield

Empower business decisions with accurate air quality data

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

0.35ppm

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 07:00:00 on 2026-10-22.

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

The best air quality in Greenfield, Wisconsin was recorded at 10:00:00 on 2026-10-21.

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

The real-time air quality index in Greenfield, Wisconsin is 64, currently categorized as Moderate.

Which pollutant is found most often in Greenfield, Wisconsin?

The most common pollutant in Greenfield, Wisconsin is PM2.5.

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 16.142 μg/m³.

What are the current PM₁₀ levels at Greenfield, Wisconsin?

The current PM₁₀ levels in Greenfield, Wisconsin are 36.119 μg/m³.

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

The current carbon monoxide (CO) level in Greenfield, Wisconsin is 0.291 ppm.

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

The current sulfur dioxide (SO₂) levels in Greenfield, Wisconsin are 0.987 ppb.

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

The current ozone (O₃) levels at Greenfield, Wisconsin is 37.815 ppm.

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

The current nitrogen dioxide (NO₂) levels at Greenfield, Wisconsin is 5.249 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-20T21:00:00.000Z	36 \| good	5.061 \| good	17.949 \| good	39.321 \| good	0.578 \| good	4.835 \| good	0.291 \| good
2026-10-20T22:00:00.000Z	38 \| good	5.27 \| good	17.731 \| good	40.978 \| good	0.72 \| good	2.64 \| good	0.291 \| good
2026-10-20T23:00:00.000Z	39 \| good	5.565 \| good	15.935 \| good	42.01 \| good	0.467 \| good	3.647 \| good	0.293 \| good
2026-10-21T00:00:00.000Z	39 \| good	5.406 \| good	14.711 \| good	41.889 \| good	0.356 \| good	7.474 \| good	0.296 \| good
2026-10-21T01:00:00.000Z	41 \| good	6.005 \| good	13.593 \| good	44.144 \| good	0.295 \| good	11.562 \| good	0.298 \| good
2026-10-21T02:00:00.000Z	36 \| good	6.345 \| good	15.281 \| good	39.469 \| good	0.236 \| good	13.02 \| good	0.299 \| good
2026-10-21T03:00:00.000Z	62 \| moderate	15.273 \| fine	68.502 \| fine	26.129 \| good	1.529 \| good	14.821 \| good	0.218 \| good
2026-10-21T04:00:00.000Z	52 \| moderate	9.698 \| good	22.471 \| good	23.414 \| good	0.518 \| good	25.171 \| good	0.479 \| good
2026-10-21T05:00:00.000Z	58 \| moderate	13.334 \| fine	21.641 \| good	23.35 \| good	1.09 \| good	22.087 \| good	0.388 \| good
2026-10-21T06:00:00.000Z	64 \| moderate	15.608 \| fine	24.054 \| good	25.117 \| good	0.866 \| good	21.935 \| good	0.387 \| good
2026-10-21T07:00:00.000Z	64 \| moderate	15.762 \| fine	26.197 \| good	15.277 \| good	0.769 \| good	21.52 \| good	0.388 \| good
2026-10-21T08:00:00.000Z	62 \| moderate	15.483 \| fine	21.238 \| good	12.236 \| good	0.642 \| good	16.454 \| good	0.296 \| good
2026-10-21T09:00:00.000Z	64 \| moderate	16.14 \| fine	21.075 \| good	4.441 \| good	0.638 \| good	16.407 \| good	0.294 \| good
2026-10-21T10:00:00.000Z	62 \| moderate	15.311 \| fine	23.833 \| good	11.081 \| good	0.837 \| good	21.412 \| good	0.388 \| good
2026-10-21T11:00:00.000Z	62 \| moderate	15.245 \| fine	24.753 \| good	9.188 \| good	0.983 \| good	25.879 \| good	0.573 \| good
2026-10-21T12:00:00.000Z	66 \| moderate	16.62 \| fine	27.331 \| good	6.735 \| good	0.993 \| good	27.84 \| good	0.574 \| good
2026-10-21T13:00:00.000Z	66 \| moderate	16.64 \| fine	28.816 \| good	7.016 \| good	1.01 \| good	27.384 \| good	0.574 \| good
2026-10-21T14:00:00.000Z	77 \| moderate	23.032 \| fine	36.026 \| good	10.036 \| good	1.187 \| good	26.938 \| good	0.581 \| good
2026-10-21T15:00:00.000Z	82 \| moderate	25.511 \| fine	49.829 \| good	11.991 \| good	0.993 \| good	24.68 \| good	0.58 \| good
2026-10-21T16:00:00.000Z	77 \| moderate	22.945 \| fine	49.451 \| good	16.46 \| good	1.401 \| good	24.419 \| good	0.479 \| good
2026-10-21T17:00:00.000Z	64 \| moderate	15.582 \| fine	40.725 \| good	22.803 \| good	1.294 \| good	24.827 \| good	0.385 \| good
2026-10-21T18:00:00.000Z	56 \| moderate	11.733 \| good	37.065 \| good	25.117 \| good	1.133 \| good	22.381 \| good	0.384 \| good
2026-10-21T19:00:00.000Z	56 \| moderate	11.95 \| good	35.733 \| good	33.786 \| good	0.989 \| good	22.378 \| good	0.384 \| good
2026-10-21T20:00:00.000Z	44 \| good	7.679 \| good	27.473 \| good	44.835 \| good	0.983 \| good	18.158 \| good	0.384 \| good
2026-10-21T21:00:00.000Z	44 \| good	7.853 \| good	32.137 \| good	41.592 \| good	1.185 \| good	18.649 \| good	0.384 \| good
2026-10-21T22:00:00.000Z	44 \| good	8.3 \| good	30.62 \| good	31.483 \| good	0.852 \| good	18.221 \| good	0.384 \| good
2026-10-21T23:00:00.000Z	49 \| good	8.947 \| good	30.3 \| good	46.38 \| good	0.88 \| good	19.075 \| good	0.385 \| good
2026-10-22T00:00:00.000Z	52 \| moderate	10.288 \| good	34.061 \| good	32.908 \| good	0.604 \| good	27.27 \| good	0.48 \| good
2026-10-22T01:00:00.000Z	58 \| moderate	13.415 \| fine	39.217 \| good	38.987 \| good	0.474 \| good	27.853 \| good	0.484 \| good
2026-10-22T02:00:00.000Z	64 \| moderate	16.337 \| fine	43.117 \| good	34.994 \| good	0.382 \| good	39.853 \| good	0.575 \| good
2026-10-22T03:00:00.000Z	54 \| moderate	11.282 \| good	50.471 \| good	18.233 \| good	1.042 \| good	33.871 \| good	0.335 \| good
2026-10-22T04:00:00.000Z	69 \| moderate	19.194 \| fine	43.808 \| good	20.354 \| good	0.3 \| good	34.713 \| good	0.669 \| good
2026-10-22T05:00:00.000Z	71 \| moderate	19.915 \| fine	44.3 \| good	17.368 \| good	0.372 \| good	27.994 \| good	0.576 \| good
2026-10-22T06:00:00.000Z	71 \| moderate	19.76 \| fine	40.859 \| good	13.283 \| good	0.351 \| good	22.679 \| good	0.396 \| good
2026-10-22T07:00:00.000Z	71 \| moderate	19.769 \| fine	41.34 \| good	11.789 \| good	0.35 \| good	22.564 \| good	0.396 \| good
2026-10-22T08:00:00.000Z	66 \| moderate	17.407 \| fine	41.536 \| good	10.668 \| good	0.476 \| good	23.954 \| good	0.392 \| good
2026-10-22T09:00:00.000Z	62 \| moderate	15.224 \| fine	37.553 \| good	11.376 \| good	0.455 \| good	24.079 \| good	0.391 \| good
2026-10-22T10:00:00.000Z	60 \| moderate	14.437 \| fine	35.059 \| good	6.171 \| good	0.418 \| good	25.091 \| good	0.39 \| good
2026-10-22T11:00:00.000Z	60 \| moderate	14.013 \| fine	34.052 \| good	10.984 \| good	0.422 \| good	27.075 \| good	0.578 \| good
2026-10-22T12:00:00.000Z	60 \| moderate	14.094 \| fine	36.245 \| good	5.882 \| good	0.326 \| good	32.138 \| good	0.585 \| good
2026-10-22T13:00:00.000Z	60 \| moderate	14.206 \| fine	39.43 \| good	4.736 \| good	0.33 \| good	32.368 \| good	0.581 \| good
2026-10-22T14:00:00.000Z	60 \| moderate	14.29 \| fine	35.7 \| good	15.664 \| good	0.557 \| good	31.714 \| good	0.674 \| good
2026-10-22T15:00:00.000Z	62 \| moderate	15.132 \| fine	40.206 \| good	13.35 \| good	0.35 \| good	21.812 \| good	0.583 \| good
2026-10-22T16:00:00.000Z	64 \| moderate	15.511 \| fine	41.095 \| good	16.932 \| good	0.579 \| good	9.363 \| good	0.302 \| good
2026-10-22T17:00:00.000Z	66 \| moderate	16.761 \| fine	42.763 \| good	24.156 \| good	0.651 \| good	13.013 \| good	0.388 \| good
2026-10-22T18:00:00.000Z	64 \| moderate	15.74 \| fine	40.866 \| good	25.005 \| good	0.724 \| good	5.745 \| good	0.294 \| good
2026-10-22T19:00:00.000Z	62 \| moderate	14.819 \| fine	35.448 \| good	36.332 \| good	0.77 \| good	6.186 \| good	0.291 \| good
2026-10-22T20:00:00.000Z	64 \| moderate	16.142 \| fine	36.119 \| good	37.815 \| good	0.987 \| good	5.249 \| good	0.291 \| good
2026-10-22T20:00:00.000Z	64 \| moderate	16.142 \| fine	36.119 \| good	37.815 \| good	0.987 \| good	5.249 \| good	0.291 \| good
2026-10-22T21:00:00.000Z	62 \| moderate	14.98 \| fine	66.91 \| fine	44.19 \| good	0.662 \| good	10.036 \| good	0.257 \| good
2026-10-22T22:00:00.000Z	64 \| moderate	16.095 \| fine	71.573 \| fine	37.547 \| good	0.653 \| good	13.75 \| good	0.278 \| good
2026-10-22T23:00:00.000Z	67 \| moderate	18.295 \| fine	81.294 \| fine	31.487 \| good	0.649 \| good	20.209 \| good	0.312 \| good
2026-10-23T00:00:00.000Z	66 \| moderate	17.278 \| fine	77.058 \| fine	30.445 \| good	0.684 \| good	24.611 \| good	0.335 \| good
2026-10-23T01:00:00.000Z	62 \| moderate	15.061 \| fine	67.49 \| fine	29.37 \| good	0.732 \| good	26.762 \| good	0.342 \| good
2026-10-23T02:00:00.000Z	62 \| moderate	14.89 \| fine	65.963 \| fine	28.05 \| good	0.776 \| good	27.624 \| good	0.34 \| good
2026-10-23T03:00:00.000Z	62 \| moderate	15.049 \| fine	67.26 \| fine	22.328 \| good	0.811 \| good	28 \| good	0.335 \| good
2026-10-23T04:00:00.000Z	62 \| moderate	14.973 \| fine	66.961 \| fine	21.604 \| good	0.836 \| good	28.389 \| good	0.333 \| good
2026-10-23T05:00:00.000Z	62 \| moderate	15.18 \| fine	67.357 \| fine	19.254 \| good	0.847 \| good	27.417 \| good	0.327 \| good
2026-10-23T06:00:00.000Z	62 \| moderate	14.783 \| fine	65.483 \| fine	21.996 \| good	0.869 \| good	26.41 \| good	0.318 \| good
2026-10-23T07:00:00.000Z	66 \| moderate	16.582 \| fine	73.24 \| fine	20.181 \| good	0.914 \| good	26.572 \| good	0.313 \| good
2026-10-23T08:00:00.000Z	66 \| moderate	16.685 \| fine	73.449 \| fine	18.03 \| good	0.987 \| good	27.547 \| good	0.311 \| good
2026-10-23T09:00:00.000Z	64 \| moderate	16.242 \| fine	72.763 \| fine	18.477 \| good	1.094 \| good	29.068 \| good	0.311 \| good
2026-10-23T10:00:00.000Z	62 \| moderate	15.376 \| fine	68.854 \| fine	19.481 \| good	1.253 \| good	30.67 \| good	0.314 \| good
2026-10-23T11:00:00.000Z	66 \| moderate	16.711 \| fine	73.625 \| fine	18.206 \| good	1.442 \| good	32.716 \| good	0.321 \| good
2026-10-23T12:00:00.000Z	69 \| moderate	18.558 \| fine	81.713 \| fine	15.829 \| good	1.675 \| good	35.468 \| good	0.335 \| good
2026-10-23T13:00:00.000Z	71 \| moderate	19.992 \| fine	87.537 \| fine	19.387 \| good	1.928 \| good	33.692 \| good	0.358 \| good
2026-10-23T14:00:00.000Z	75 \| moderate	22.473 \| fine	98.788 \| fine	28.491 \| good	2.303 \| good	30.087 \| good	0.368 \| good
2026-10-23T15:00:00.000Z	73 \| moderate	21.089 \| fine	92.97 \| fine	31.923 \| good	2.595 \| good	27.209 \| good	0.372 \| good
2026-10-23T16:00:00.000Z	71 \| moderate	19.548 \| fine	85.896 \| fine	33.828 \| good	2.922 \| good	24.667 \| good	0.358 \| good
2026-10-23T17:00:00.000Z	71 \| moderate	19.708 \| fine	87.139 \| fine	36.618 \| good	2.925 \| good	21.713 \| good	0.335 \| good
2026-10-23T18:00:00.000Z	71 \| moderate	19.612 \| fine	85.797 \| fine	42.365 \| good	2.685 \| good	18.545 \| good	0.31 \| good
2026-10-23T19:00:00.000Z	69 \| moderate	18.923 \| fine	83.75 \| fine	44.733 \| good	2.202 \| good	16.353 \| good	0.29 \| good
2026-10-23T20:00:00.000Z	69 \| moderate	18.531 \| fine	81.628 \| fine	46.826 \| good	1.935 \| good	15.489 \| good	0.277 \| good
2026-10-23T21:00:00.000Z	71 \| moderate	19.687 \| fine	86.808 \| fine	42.536 \| good	1.942 \| good	15.13 \| good	0.264 \| good
2026-10-23T22:00:00.000Z	71 \| moderate	19.652 \| fine	86.808 \| fine	35.715 \| good	1.946 \| good	18.09 \| good	0.27 \| good
2026-10-23T23:00:00.000Z	69 \| moderate	19.451 \| fine	85.277 \| fine	34.32 \| good	2.019 \| good	20.963 \| good	0.278 \| good
2026-10-24T00:00:00.000Z	67 \| moderate	17.718 \| fine	78.66 \| fine	37.445 \| good	2.067 \| good	20.768 \| good	0.277 \| good
2026-10-24T01:00:00.000Z	62 \| moderate	14.786 \| fine	65.665 \| fine	36.688 \| good	2.048 \| good	19.253 \| good	0.267 \| good
2026-10-24T02:00:00.000Z	60 \| moderate	14.309 \| fine	63.558 \| fine	36.502 \| good	1.956 \| good	17.625 \| good	0.256 \| good
2026-10-24T03:00:00.000Z	62 \| moderate	14.814 \| fine	65.7 \| fine	34.37 \| good	1.806 \| good	16.292 \| good	0.246 \| good
2026-10-24T04:00:00.000Z	66 \| moderate	16.501 \| fine	73.35 \| fine	29.907 \| good	1.64 \| good	14.585 \| good	0.236 \| good
2026-10-24T05:00:00.000Z	67 \| moderate	18.456 \| fine	81.495 \| fine	26.851 \| good	1.456 \| good	12.316 \| good	0.227 \| good
2026-10-24T06:00:00.000Z	71 \| moderate	19.729 \| fine	86.959 \| fine	26.403 \| good	1.342 \| good	11.046 \| good	0.222 \| good
2026-10-24T07:00:00.000Z	73 \| moderate	21.105 \| fine	92.682 \| fine	23.473 \| good	1.338 \| good	10.676 \| good	0.223 \| good
2026-10-24T08:00:00.000Z	75 \| moderate	22.114 \| fine	97.023 \| fine	19.322 \| good	1.404 \| good	10.556 \| good	0.224 \| good
2026-10-24T09:00:00.000Z	73 \| moderate	21.11 \| fine	92.952 \| fine	16.806 \| good	1.477 \| good	10.333 \| good	0.226 \| good
2026-10-24T10:00:00.000Z	67 \| moderate	18.402 \| fine	81.412 \| fine	17.298 \| good	1.529 \| good	10.076 \| good	0.227 \| good
2026-10-24T11:00:00.000Z	66 \| moderate	17.471 \| fine	77.371 \| fine	14.795 \| good	1.549 \| good	10.055 \| good	0.228 \| good
2026-10-24T12:00:00.000Z	66 \| moderate	16.629 \| fine	73.818 \| fine	16.104 \| good	1.55 \| good	11.014 \| good	0.232 \| good
2026-10-24T13:00:00.000Z	62 \| moderate	15.316 \| fine	68.873 \| fine	18.268 \| good	1.538 \| good	12.563 \| good	0.238 \| good
2026-10-24T14:00:00.000Z	64 \| moderate	16.134 \| fine	71.48 \| fine	26.232 \| good	1.515 \| good	12.422 \| good	0.245 \| good
2026-10-24T15:00:00.000Z	60 \| moderate	14.4 \| fine	64.971 \| fine	32.426 \| good	1.542 \| good	11.561 \| good	0.243 \| good
2026-10-24T16:00:00.000Z	56 \| moderate	12.216 \| fine	54.635 \| good	34.599 \| good	1.49 \| good	11.118 \| good	0.243 \| good
2026-10-24T17:00:00.000Z	54 \| moderate	11.323 \| good	50.222 \| good	39.002 \| good	1.347 \| good	10.802 \| good	0.242 \| good
2026-10-24T18:00:00.000Z	54 \| moderate	11.131 \| good	49.684 \| good	43.81 \| good	1.318 \| good	10.181 \| good	0.236 \| good
2026-10-24T19:00:00.000Z	54 \| moderate	11.37 \| good	50.511 \| good	46.811 \| good	1.286 \| good	9.747 \| good	0.23 \| good
2026-10-24T20:00:00.000Z	58 \| moderate	12.532 \| fine	56.886 \| fine	48.914 \| good	1.28 \| good	10.133 \| good	0.228 \| good

Real-time air quality index in Greenfield, Wisconsin today

Common air pollutants in Greenfield, Wisconsin

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Greenfield, Wisconsin air quality forecast and history

Empower business decisions with accurate air quality data

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

Air quality in nearby cities

Greendale, Wisconsin

West Allis, Wisconsin

New Berlin, Wisconsin

Franklin, Wisconsin

Wauwatosa, Wisconsin

Milwaukee, Wisconsin

How accurate is Wisconsin, USA air quality data?

Air quality levels in US

Frequently asked questions

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

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

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

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

Which pollutant is found most often in Greenfield, Wisconsin?

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

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

What are the current PM10 levels at Greenfield, Wisconsin?

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

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

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

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

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

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

What are the current PM₁₀ levels at Greenfield, Wisconsin?

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

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

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