What are the current PM10 levels at Freeport, Illinois?

The current PM10 levels in Freeport, Illinois are 28.134 μg/m3.

What are the current sulfur dioxide (SO2) levels at Freeport, Illinois?

The current sulfur dioxide (SO2) levels in Freeport, Illinois are 0.276 ppb.

What are the current ozone (O3) levels at Freeport, Illinois?

The current ozone (O3) levels at Freeport, Illinois is 16.239 ppm.

What are the current nitrogen dioxide (NO2) levels at Freeport, Illinois?

The current nitrogen dioxide (NO2) levels at Freeport, Illinois is 6.934 ppb.

Real-time air quality index in Freeport, Illinois today

Q: What are the current PM2.5 levels in Freeport, Illinois?

The measured PM2.5 levels in Freeport, Illinois at present are 5.576 μg/m3.

Stay updated with real-time air quality in Freeport, Illinois 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

Freeport, Illinois

Last updated: ... (Local time)

Common air pollutants in Freeport, Illinois

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

5.58 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

28.13 μg/m³

155

255

425

605+

Ozone (O₃)

16.24 ppb

201

201+

Sulfur Dioxide (SO₂)

0.28 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

6.93 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.23 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Freeport, Illinois

Get Live Pollen Counts

Freeport, Illinois

Scroll To Air Quality Map

Track live Freeport, Illinois air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-09-05T13:00:00.000Z	49 \| good	9.358 \| good	42.578 \| good	19.048 \| good	0.34 \| good	7.854 \| good	0.163 \| good
2026-09-05T14:00:00.000Z	44 \| good	8.281 \| good	38.773 \| good	23.996 \| good	0.227 \| good	5.28 \| good	0.185 \| good
2026-09-05T15:00:00.000Z	44 \| good	8.207 \| good	41.283 \| good	25.664 \| good	0.273 \| good	3.003 \| good	0.174 \| good
2026-09-05T16:00:00.000Z	38 \| good	7.381 \| good	34.848 \| good	30.32 \| good	0.239 \| good	3.084 \| good	0.2 \| good
2026-09-05T17:00:00.000Z	38 \| good	7.059 \| good	29.197 \| good	31.928 \| good	0.17 \| good	2.278 \| good	0.168 \| good
2026-09-05T18:00:00.000Z	33 \| good	5.696 \| good	22.382 \| good	32.217 \| good	0.236 \| good	2.756 \| good	0.2 \| good
2026-09-05T19:00:00.000Z	33 \| good	6.124 \| good	27.223 \| good	35.081 \| good	0.166 \| good	2.307 \| good	0.168 \| good
2026-09-05T20:00:00.000Z	35 \| good	4.92 \| good	25.41 \| good	37.833 \| good	0.198 \| good	1.925 \| good	0.216 \| good
2026-09-05T21:00:00.000Z	37 \| good	6.367 \| good	32.296 \| good	40.091 \| good	0.198 \| good	1.867 \| good	0.186 \| good
2026-09-05T22:00:00.000Z	44 \| good	7.761 \| good	34.109 \| good	39.452 \| good	0.185 \| good	2.229 \| good	0.206 \| good
2026-09-05T23:00:00.000Z	38 \| good	7.006 \| good	31.213 \| good	40.54 \| good	0.198 \| good	2.184 \| good	0.186 \| good
2026-09-06T00:00:00.000Z	34 \| good	5.947 \| good	23.59 \| good	37.334 \| good	0.277 \| good	2.296 \| good	0.206 \| good
2026-09-06T01:00:00.000Z	34 \| good	5.973 \| good	21.014 \| good	36.623 \| good	0.205 \| good	2.885 \| good	0.196 \| good
2026-09-06T02:00:00.000Z	34 \| good	6.239 \| good	24.474 \| good	36.591 \| good	0.266 \| good	3.176 \| good	0.226 \| good
2026-09-06T03:00:00.000Z	44 \| good	8.105 \| good	35.501 \| good	34.26 \| good	0.283 \| good	2.724 \| good	0.159 \| good
2026-09-06T04:00:00.000Z	33 \| good	5.966 \| good	27.429 \| good	29.588 \| good	0.218 \| good	2.758 \| good	0.206 \| good
2026-09-06T05:00:00.000Z	33 \| good	5.982 \| good	26.322 \| good	30.953 \| good	0.249 \| good	3.131 \| good	0.216 \| good
2026-09-06T06:00:00.000Z	38 \| good	6.58 \| good	24.79 \| good	28.212 \| good	0.317 \| good	3.764 \| good	0.236 \| good
2026-09-06T07:00:00.000Z	33 \| good	6.286 \| good	24.381 \| good	23.34 \| good	0.264 \| good	3.694 \| good	0.236 \| good
2026-09-06T08:00:00.000Z	33 \| good	6.207 \| good	23.286 \| good	22.436 \| good	0.262 \| good	3.188 \| good	0.216 \| good
2026-09-06T09:00:00.000Z	33 \| good	5.572 \| good	21.468 \| good	21.722 \| good	0.241 \| good	3.42 \| good	0.186 \| good
2026-09-06T10:00:00.000Z	33 \| good	5.525 \| good	19.573 \| good	21.679 \| good	0.267 \| good	3.374 \| good	0.186 \| good
2026-09-06T11:00:00.000Z	27 \| good	5.28 \| good	17.689 \| good	17.661 \| good	0.245 \| good	3.572 \| good	0.17 \| good
2026-09-06T12:00:00.000Z	27 \| good	5.294 \| good	23.563 \| good	20.495 \| good	0.599 \| good	2.655 \| good	0.165 \| good
2026-09-06T13:00:00.000Z	33 \| good	5.927 \| good	24.72 \| good	20.208 \| good	0.464 \| good	2.192 \| good	0.165 \| good
2026-09-06T14:00:00.000Z	33 \| good	6.12 \| good	24.86 \| good	18.189 \| good	0.228 \| good	1.805 \| good	0.165 \| good
2026-09-06T15:00:00.000Z	33 \| good	5.909 \| good	26.671 \| good	22.182 \| good	0.374 \| good	1.486 \| good	0.165 \| good
2026-09-06T16:00:00.000Z	33 \| good	5.967 \| good	27.738 \| good	22.525 \| good	0.854 \| good	1.187 \| good	0.175 \| good
2026-09-06T17:00:00.000Z	38 \| good	6.895 \| good	32.638 \| good	27.063 \| good	0.523 \| good	1.394 \| good	0.165 \| good
2026-09-06T18:00:00.000Z	44 \| good	7.594 \| good	35.981 \| good	31.19 \| good	0.503 \| good	1.303 \| good	0.196 \| good
2026-09-06T19:00:00.000Z	33 \| good	6.491 \| good	28.847 \| good	33.576 \| good	0.64 \| good	1.377 \| good	0.186 \| good
2026-09-06T20:00:00.000Z	38 \| good	6.809 \| good	30.573 \| good	33.211 \| good	0.569 \| good	1.201 \| good	0.186 \| good
2026-09-06T21:00:00.000Z	33 \| good	5.962 \| good	28.496 \| good	35.025 \| good	0.626 \| good	1.131 \| good	0.186 \| good
2026-09-06T22:00:00.000Z	33 \| good	5.57 \| good	27.365 \| good	35.284 \| good	0.931 \| good	1.415 \| good	0.186 \| good
2026-09-06T23:00:00.000Z	34 \| good	5.507 \| good	18.684 \| good	36.927 \| good	0.951 \| good	1.833 \| good	0.206 \| good
2026-09-07T00:00:00.000Z	33 \| good	5.605 \| good	20.743 \| good	33.845 \| good	0.839 \| good	2.461 \| good	0.206 \| good
2026-09-07T01:00:00.000Z	31 \| good	4.691 \| good	23.725 \| good	34.433 \| good	0.516 \| good	3.596 \| good	0.216 \| good
2026-09-07T02:00:00.000Z	33 \| good	6.173 \| good	28.446 \| good	32.192 \| good	0.4 \| good	4.325 \| good	0.216 \| good
2026-09-07T03:00:00.000Z	44 \| good	8.089 \| good	35.759 \| good	29.776 \| good	0.35 \| good	3.348 \| good	0.157 \| good
2026-09-07T04:00:00.000Z	49 \| good	8.56 \| good	27.56 \| good	27.026 \| good	0.459 \| good	5.239 \| good	0.227 \| good
2026-09-07T05:00:00.000Z	38 \| good	6.713 \| good	23.258 \| good	24.301 \| good	0.415 \| good	4.428 \| good	0.206 \| good
2026-09-07T06:00:00.000Z	33 \| good	6.042 \| good	19.541 \| good	25.723 \| good	0.528 \| good	3.684 \| good	0.206 \| good
2026-09-07T07:00:00.000Z	38 \| good	6.589 \| good	27.653 \| good	26.582 \| good	0.528 \| good	6.121 \| good	0.206 \| good
2026-09-07T08:00:00.000Z	33 \| good	6.261 \| good	28.256 \| good	25.701 \| good	0.451 \| good	8.867 \| good	0.206 \| good
2026-09-07T09:00:00.000Z	38 \| good	6.686 \| good	28.43 \| good	20.897 \| good	0.354 \| good	7.007 \| good	0.206 \| good
2026-09-07T10:00:00.000Z	27 \| good	5.475 \| good	25.839 \| good	22.277 \| good	0.282 \| good	7.341 \| good	0.206 \| good
2026-09-07T11:00:00.000Z	33 \| good	5.576 \| good	28.134 \| good	16.239 \| good	0.276 \| good	6.934 \| good	0.227 \| good
2026-09-07T12:00:00.000Z	33 \| good	5.576 \| good	28.134 \| good	16.239 \| good	0.276 \| good	6.934 \| good	0.227 \| good
2026-09-07T13:00:00.000Z	56 \| moderate	11.525 \| good	51.011 \| good	17.617 \| good	0.422 \| good	4.228 \| good	0.174 \| good
2026-09-07T14:00:00.000Z	54 \| moderate	10.582 \| good	46.856 \| good	22.885 \| good	0.559 \| good	3.411 \| good	0.169 \| good
2026-09-07T15:00:00.000Z	52 \| moderate	9.833 \| good	43.802 \| good	29.997 \| good	0.816 \| good	2.703 \| good	0.165 \| good
2026-09-07T16:00:00.000Z	44 \| good	8.114 \| good	35.379 \| good	33.656 \| good	0.971 \| good	1.757 \| good	0.164 \| good
2026-09-07T17:00:00.000Z	38 \| good	7.086 \| good	31.279 \| good	36.25 \| good	0.916 \| good	0.955 \| good	0.162 \| good
2026-09-07T18:00:00.000Z	44 \| good	8.13 \| good	35.479 \| good	38.089 \| good	0.845 \| good	0.685 \| good	0.161 \| good
2026-09-07T19:00:00.000Z	49 \| good	9.424 \| good	42.015 \| good	38.352 \| good	0.801 \| good	0.599 \| good	0.16 \| good
2026-09-07T20:00:00.000Z	54 \| moderate	10.688 \| good	47.526 \| good	38.678 \| good	0.784 \| good	0.624 \| good	0.16 \| good
2026-09-07T21:00:00.000Z	54 \| moderate	10.695 \| good	47.12 \| good	40.557 \| good	0.786 \| good	0.696 \| good	0.16 \| good
2026-09-07T22:00:00.000Z	54 \| moderate	10.708 \| good	47.312 \| good	45.047 \| good	0.801 \| good	0.847 \| good	0.161 \| good
2026-09-07T23:00:00.000Z	54 \| moderate	10.839 \| good	48.219 \| good	44.987 \| good	0.76 \| good	1.509 \| good	0.167 \| good
2026-09-08T00:00:00.000Z	56 \| moderate	11.61 \| good	51.453 \| good	45.352 \| good	0.754 \| good	2.667 \| good	0.175 \| good
2026-09-08T01:00:00.000Z	60 \| moderate	13.709 \| fine	61.354 \| fine	43.671 \| good	0.822 \| good	3.912 \| good	0.182 \| good
2026-09-08T02:00:00.000Z	60 \| moderate	14.143 \| fine	63.154 \| fine	39.195 \| good	0.9 \| good	4.468 \| good	0.185 \| good
2026-09-08T03:00:00.000Z	60 \| moderate	14.01 \| fine	63.021 \| fine	35.677 \| good	0.977 \| good	4.752 \| good	0.185 \| good
2026-09-08T04:00:00.000Z	58 \| moderate	12.709 \| fine	57.141 \| fine	30.384 \| good	1.067 \| good	5.034 \| good	0.186 \| good
2026-09-08T05:00:00.000Z	58 \| moderate	12.838 \| fine	57.745 \| fine	26.829 \| good	1.165 \| good	5.381 \| good	0.187 \| good
2026-09-08T06:00:00.000Z	56 \| moderate	11.988 \| good	53.679 \| good	21.949 \| good	1.257 \| good	5.615 \| good	0.187 \| good
2026-09-08T07:00:00.000Z	56 \| moderate	11.51 \| good	51.051 \| good	19.404 \| good	1.31 \| good	5.705 \| good	0.185 \| good
2026-09-08T08:00:00.000Z	56 \| moderate	11.587 \| good	51.328 \| good	18.275 \| good	1.275 \| good	5.696 \| good	0.182 \| good
2026-09-08T09:00:00.000Z	54 \| moderate	11.471 \| good	51.021 \| good	17.579 \| good	1.168 \| good	5.684 \| good	0.18 \| good
2026-09-08T10:00:00.000Z	58 \| moderate	12.579 \| fine	57.167 \| fine	14.105 \| good	1.049 \| good	5.755 \| good	0.178 \| good
2026-09-08T11:00:00.000Z	56 \| moderate	12.368 \| fine	55.307 \| fine	14.982 \| good	0.946 \| good	5.788 \| good	0.178 \| good
2026-09-08T12:00:00.000Z	58 \| moderate	12.541 \| fine	56.867 \| fine	15.681 \| good	0.826 \| good	5.706 \| good	0.179 \| good
2026-09-08T13:00:00.000Z	58 \| moderate	12.985 \| fine	58.758 \| fine	19.69 \| good	0.671 \| good	4.448 \| good	0.182 \| good
2026-09-08T14:00:00.000Z	56 \| moderate	12.336 \| fine	55.474 \| fine	26.09 \| good	0.573 \| good	3.603 \| good	0.186 \| good
2026-09-08T15:00:00.000Z	54 \| moderate	11.458 \| good	50.487 \| good	33.086 \| good	0.514 \| good	2.76 \| good	0.185 \| good
2026-09-08T16:00:00.000Z	56 \| moderate	11.558 \| good	51.157 \| good	40.617 \| good	0.511 \| good	1.767 \| good	0.181 \| good
2026-09-08T17:00:00.000Z	54 \| moderate	11.257 \| good	49.645 \| good	45.232 \| good	0.539 \| good	1.075 \| good	0.178 \| good
2026-09-08T18:00:00.000Z	54 \| moderate	11.211 \| good	49.485 \| good	45.842 \| good	0.568 \| good	0.791 \| good	0.177 \| good
2026-09-08T19:00:00.000Z	56 \| moderate	11.996 \| good	53.913 \| good	46.427 \| good	0.582 \| good	0.705 \| good	0.177 \| good
2026-09-08T20:00:00.000Z	56 \| moderate	11.765 \| good	51.996 \| good	45.968 \| good	0.585 \| good	0.707 \| good	0.178 \| good
2026-09-08T21:00:00.000Z	54 \| moderate	11.2 \| good	49.55 \| good	49.068 \| good	0.585 \| good	0.767 \| good	0.179 \| good
2026-09-08T22:00:00.000Z	56 \| moderate	11.814 \| good	52.577 \| good	50.495 \| good	0.571 \| good	1.003 \| good	0.182 \| good
2026-09-08T23:00:00.000Z	58 \| moderate	13.139 \| fine	58.817 \| fine	47.228 \| good	0.544 \| good	1.563 \| good	0.187 \| good
2026-09-09T00:00:00.000Z	62 \| moderate	15.388 \| fine	68.808 \| fine	43.989 \| good	0.579 \| good	2.158 \| good	0.19 \| good
2026-09-09T01:00:00.000Z	62 \| moderate	14.823 \| fine	66.543 \| fine	40.439 \| good	0.648 \| good	2.609 \| good	0.191 \| good
2026-09-09T02:00:00.000Z	58 \| moderate	12.55 \| fine	57 \| fine	39.437 \| good	0.711 \| good	2.9 \| good	0.191 \| good
2026-09-09T03:00:00.000Z	56 \| moderate	11.664 \| good	51.067 \| good	37.863 \| good	0.792 \| good	3.014 \| good	0.189 \| good
2026-09-09T04:00:00.000Z	52 \| moderate	10.276 \| good	45.121 \| good	35.19 \| good	0.882 \| good	3.024 \| good	0.188 \| good
2026-09-09T05:00:00.000Z	54 \| moderate	10.782 \| good	47.895 \| good	32.982 \| good	0.941 \| good	2.935 \| good	0.189 \| good
2026-09-09T06:00:00.000Z	52 \| moderate	10.106 \| good	44.93 \| good	31.065 \| good	0.947 \| good	2.891 \| good	0.192 \| good
2026-09-09T07:00:00.000Z	56 \| moderate	11.506 \| good	51.011 \| good	28.691 \| good	0.938 \| good	3.003 \| good	0.196 \| good
2026-09-09T08:00:00.000Z	44 \| good	8.061 \| good	35.366 \| good	27.803 \| good	0.91 \| good	3.066 \| good	0.199 \| good
2026-09-09T09:00:00.000Z	49 \| good	9.186 \| good	41.065 \| good	26.67 \| good	0.888 \| good	3.192 \| good	0.2 \| good
2026-09-09T10:00:00.000Z	56 \| moderate	11.896 \| good	52.669 \| good	25.548 \| good	0.848 \| good	3.119 \| good	0.198 \| good
2026-09-09T11:00:00.000Z	52 \| moderate	10.497 \| good	46.222 \| good	23.357 \| good	0.685 \| good	2.925 \| good	0.192 \| good
2026-09-09T12:00:00.000Z	34 \| good	5.801 \| good	5.988 \| good	36.6 \| good	0.544 \| good	2.668 \| good	0.187 \| good

Freeport

Empower business decisions with accurate air quality data

Freeport, Illinois air quality map: Real-time AQI near you

0.22ppm

How accurate is Illinois, USA air quality data?

Air quality measurements for Illinois, 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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Check live rankings of places in the USA affected by air pollution.

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Frequently asked questions

How frequently is the air quality data for Freeport, Illinois updated?

Air quality data for Freeport, Illinois is updated on an hourly basis.

When did Freeport, Illinois experience the worst air quality in the last 24 hours?

The worst air quality in Freeport, Illinois was recorded at 04:00:00 on 2026-09-07.

When did Freeport, Illinois have its best air quality in the last 24 hours?

The best air quality in Freeport, Illinois was recorded at 10:00:00 on 2026-09-07.

What is the real-time air quality index for Freeport, Illinois?

The real-time air quality index in Freeport, Illinois is 33, currently categorized as Good.

Which pollutant is found most often in Freeport, Illinois?

The most common pollutant in Freeport, Illinois is PM2.5.

What can I do if the air quality in Freeport, Illinois is poor?

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

What are the current PM_2.5 levels in Freeport, Illinois?

The measured PM_2.5 levels in Freeport, Illinois at present are 5.576 μg/m³.

What are the current PM₁₀ levels at Freeport, Illinois?

The current PM₁₀ levels in Freeport, Illinois are 28.134 μg/m³.

What are the current carbon monoxide (CO) levels at Freeport, Illinois?

The current carbon monoxide (CO) level in Freeport, Illinois is 0.227 ppm.

What are the current sulfur dioxide (SO₂) levels at Freeport, Illinois?

The current sulfur dioxide (SO₂) levels in Freeport, Illinois are 0.276 ppb.

What are the current ozone (O₃) levels at Freeport, Illinois?

The current ozone (O₃) levels at Freeport, Illinois is 16.239 ppm.

What are the current nitrogen dioxide (NO₂) levels at Freeport, Illinois?

The current nitrogen dioxide (NO₂) levels at Freeport, Illinois is 6.934 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-09-05T13:00:00.000Z	49 \| good	9.358 \| good	42.578 \| good	19.048 \| good	0.34 \| good	7.854 \| good	0.163 \| good
2026-09-05T14:00:00.000Z	44 \| good	8.281 \| good	38.773 \| good	23.996 \| good	0.227 \| good	5.28 \| good	0.185 \| good
2026-09-05T15:00:00.000Z	44 \| good	8.207 \| good	41.283 \| good	25.664 \| good	0.273 \| good	3.003 \| good	0.174 \| good
2026-09-05T16:00:00.000Z	38 \| good	7.381 \| good	34.848 \| good	30.32 \| good	0.239 \| good	3.084 \| good	0.2 \| good
2026-09-05T17:00:00.000Z	38 \| good	7.059 \| good	29.197 \| good	31.928 \| good	0.17 \| good	2.278 \| good	0.168 \| good
2026-09-05T18:00:00.000Z	33 \| good	5.696 \| good	22.382 \| good	32.217 \| good	0.236 \| good	2.756 \| good	0.2 \| good
2026-09-05T19:00:00.000Z	33 \| good	6.124 \| good	27.223 \| good	35.081 \| good	0.166 \| good	2.307 \| good	0.168 \| good
2026-09-05T20:00:00.000Z	35 \| good	4.92 \| good	25.41 \| good	37.833 \| good	0.198 \| good	1.925 \| good	0.216 \| good
2026-09-05T21:00:00.000Z	37 \| good	6.367 \| good	32.296 \| good	40.091 \| good	0.198 \| good	1.867 \| good	0.186 \| good
2026-09-05T22:00:00.000Z	44 \| good	7.761 \| good	34.109 \| good	39.452 \| good	0.185 \| good	2.229 \| good	0.206 \| good
2026-09-05T23:00:00.000Z	38 \| good	7.006 \| good	31.213 \| good	40.54 \| good	0.198 \| good	2.184 \| good	0.186 \| good
2026-09-06T00:00:00.000Z	34 \| good	5.947 \| good	23.59 \| good	37.334 \| good	0.277 \| good	2.296 \| good	0.206 \| good
2026-09-06T01:00:00.000Z	34 \| good	5.973 \| good	21.014 \| good	36.623 \| good	0.205 \| good	2.885 \| good	0.196 \| good
2026-09-06T02:00:00.000Z	34 \| good	6.239 \| good	24.474 \| good	36.591 \| good	0.266 \| good	3.176 \| good	0.226 \| good
2026-09-06T03:00:00.000Z	44 \| good	8.105 \| good	35.501 \| good	34.26 \| good	0.283 \| good	2.724 \| good	0.159 \| good
2026-09-06T04:00:00.000Z	33 \| good	5.966 \| good	27.429 \| good	29.588 \| good	0.218 \| good	2.758 \| good	0.206 \| good
2026-09-06T05:00:00.000Z	33 \| good	5.982 \| good	26.322 \| good	30.953 \| good	0.249 \| good	3.131 \| good	0.216 \| good
2026-09-06T06:00:00.000Z	38 \| good	6.58 \| good	24.79 \| good	28.212 \| good	0.317 \| good	3.764 \| good	0.236 \| good
2026-09-06T07:00:00.000Z	33 \| good	6.286 \| good	24.381 \| good	23.34 \| good	0.264 \| good	3.694 \| good	0.236 \| good
2026-09-06T08:00:00.000Z	33 \| good	6.207 \| good	23.286 \| good	22.436 \| good	0.262 \| good	3.188 \| good	0.216 \| good
2026-09-06T09:00:00.000Z	33 \| good	5.572 \| good	21.468 \| good	21.722 \| good	0.241 \| good	3.42 \| good	0.186 \| good
2026-09-06T10:00:00.000Z	33 \| good	5.525 \| good	19.573 \| good	21.679 \| good	0.267 \| good	3.374 \| good	0.186 \| good
2026-09-06T11:00:00.000Z	27 \| good	5.28 \| good	17.689 \| good	17.661 \| good	0.245 \| good	3.572 \| good	0.17 \| good
2026-09-06T12:00:00.000Z	27 \| good	5.294 \| good	23.563 \| good	20.495 \| good	0.599 \| good	2.655 \| good	0.165 \| good
2026-09-06T13:00:00.000Z	33 \| good	5.927 \| good	24.72 \| good	20.208 \| good	0.464 \| good	2.192 \| good	0.165 \| good
2026-09-06T14:00:00.000Z	33 \| good	6.12 \| good	24.86 \| good	18.189 \| good	0.228 \| good	1.805 \| good	0.165 \| good
2026-09-06T15:00:00.000Z	33 \| good	5.909 \| good	26.671 \| good	22.182 \| good	0.374 \| good	1.486 \| good	0.165 \| good
2026-09-06T16:00:00.000Z	33 \| good	5.967 \| good	27.738 \| good	22.525 \| good	0.854 \| good	1.187 \| good	0.175 \| good
2026-09-06T17:00:00.000Z	38 \| good	6.895 \| good	32.638 \| good	27.063 \| good	0.523 \| good	1.394 \| good	0.165 \| good
2026-09-06T18:00:00.000Z	44 \| good	7.594 \| good	35.981 \| good	31.19 \| good	0.503 \| good	1.303 \| good	0.196 \| good
2026-09-06T19:00:00.000Z	33 \| good	6.491 \| good	28.847 \| good	33.576 \| good	0.64 \| good	1.377 \| good	0.186 \| good
2026-09-06T20:00:00.000Z	38 \| good	6.809 \| good	30.573 \| good	33.211 \| good	0.569 \| good	1.201 \| good	0.186 \| good
2026-09-06T21:00:00.000Z	33 \| good	5.962 \| good	28.496 \| good	35.025 \| good	0.626 \| good	1.131 \| good	0.186 \| good
2026-09-06T22:00:00.000Z	33 \| good	5.57 \| good	27.365 \| good	35.284 \| good	0.931 \| good	1.415 \| good	0.186 \| good
2026-09-06T23:00:00.000Z	34 \| good	5.507 \| good	18.684 \| good	36.927 \| good	0.951 \| good	1.833 \| good	0.206 \| good
2026-09-07T00:00:00.000Z	33 \| good	5.605 \| good	20.743 \| good	33.845 \| good	0.839 \| good	2.461 \| good	0.206 \| good
2026-09-07T01:00:00.000Z	31 \| good	4.691 \| good	23.725 \| good	34.433 \| good	0.516 \| good	3.596 \| good	0.216 \| good
2026-09-07T02:00:00.000Z	33 \| good	6.173 \| good	28.446 \| good	32.192 \| good	0.4 \| good	4.325 \| good	0.216 \| good
2026-09-07T03:00:00.000Z	44 \| good	8.089 \| good	35.759 \| good	29.776 \| good	0.35 \| good	3.348 \| good	0.157 \| good
2026-09-07T04:00:00.000Z	49 \| good	8.56 \| good	27.56 \| good	27.026 \| good	0.459 \| good	5.239 \| good	0.227 \| good
2026-09-07T05:00:00.000Z	38 \| good	6.713 \| good	23.258 \| good	24.301 \| good	0.415 \| good	4.428 \| good	0.206 \| good
2026-09-07T06:00:00.000Z	33 \| good	6.042 \| good	19.541 \| good	25.723 \| good	0.528 \| good	3.684 \| good	0.206 \| good
2026-09-07T07:00:00.000Z	38 \| good	6.589 \| good	27.653 \| good	26.582 \| good	0.528 \| good	6.121 \| good	0.206 \| good
2026-09-07T08:00:00.000Z	33 \| good	6.261 \| good	28.256 \| good	25.701 \| good	0.451 \| good	8.867 \| good	0.206 \| good
2026-09-07T09:00:00.000Z	38 \| good	6.686 \| good	28.43 \| good	20.897 \| good	0.354 \| good	7.007 \| good	0.206 \| good
2026-09-07T10:00:00.000Z	27 \| good	5.475 \| good	25.839 \| good	22.277 \| good	0.282 \| good	7.341 \| good	0.206 \| good
2026-09-07T11:00:00.000Z	33 \| good	5.576 \| good	28.134 \| good	16.239 \| good	0.276 \| good	6.934 \| good	0.227 \| good
2026-09-07T12:00:00.000Z	33 \| good	5.576 \| good	28.134 \| good	16.239 \| good	0.276 \| good	6.934 \| good	0.227 \| good
2026-09-07T13:00:00.000Z	56 \| moderate	11.525 \| good	51.011 \| good	17.617 \| good	0.422 \| good	4.228 \| good	0.174 \| good
2026-09-07T14:00:00.000Z	54 \| moderate	10.582 \| good	46.856 \| good	22.885 \| good	0.559 \| good	3.411 \| good	0.169 \| good
2026-09-07T15:00:00.000Z	52 \| moderate	9.833 \| good	43.802 \| good	29.997 \| good	0.816 \| good	2.703 \| good	0.165 \| good
2026-09-07T16:00:00.000Z	44 \| good	8.114 \| good	35.379 \| good	33.656 \| good	0.971 \| good	1.757 \| good	0.164 \| good
2026-09-07T17:00:00.000Z	38 \| good	7.086 \| good	31.279 \| good	36.25 \| good	0.916 \| good	0.955 \| good	0.162 \| good
2026-09-07T18:00:00.000Z	44 \| good	8.13 \| good	35.479 \| good	38.089 \| good	0.845 \| good	0.685 \| good	0.161 \| good
2026-09-07T19:00:00.000Z	49 \| good	9.424 \| good	42.015 \| good	38.352 \| good	0.801 \| good	0.599 \| good	0.16 \| good
2026-09-07T20:00:00.000Z	54 \| moderate	10.688 \| good	47.526 \| good	38.678 \| good	0.784 \| good	0.624 \| good	0.16 \| good
2026-09-07T21:00:00.000Z	54 \| moderate	10.695 \| good	47.12 \| good	40.557 \| good	0.786 \| good	0.696 \| good	0.16 \| good
2026-09-07T22:00:00.000Z	54 \| moderate	10.708 \| good	47.312 \| good	45.047 \| good	0.801 \| good	0.847 \| good	0.161 \| good
2026-09-07T23:00:00.000Z	54 \| moderate	10.839 \| good	48.219 \| good	44.987 \| good	0.76 \| good	1.509 \| good	0.167 \| good
2026-09-08T00:00:00.000Z	56 \| moderate	11.61 \| good	51.453 \| good	45.352 \| good	0.754 \| good	2.667 \| good	0.175 \| good
2026-09-08T01:00:00.000Z	60 \| moderate	13.709 \| fine	61.354 \| fine	43.671 \| good	0.822 \| good	3.912 \| good	0.182 \| good
2026-09-08T02:00:00.000Z	60 \| moderate	14.143 \| fine	63.154 \| fine	39.195 \| good	0.9 \| good	4.468 \| good	0.185 \| good
2026-09-08T03:00:00.000Z	60 \| moderate	14.01 \| fine	63.021 \| fine	35.677 \| good	0.977 \| good	4.752 \| good	0.185 \| good
2026-09-08T04:00:00.000Z	58 \| moderate	12.709 \| fine	57.141 \| fine	30.384 \| good	1.067 \| good	5.034 \| good	0.186 \| good
2026-09-08T05:00:00.000Z	58 \| moderate	12.838 \| fine	57.745 \| fine	26.829 \| good	1.165 \| good	5.381 \| good	0.187 \| good
2026-09-08T06:00:00.000Z	56 \| moderate	11.988 \| good	53.679 \| good	21.949 \| good	1.257 \| good	5.615 \| good	0.187 \| good
2026-09-08T07:00:00.000Z	56 \| moderate	11.51 \| good	51.051 \| good	19.404 \| good	1.31 \| good	5.705 \| good	0.185 \| good
2026-09-08T08:00:00.000Z	56 \| moderate	11.587 \| good	51.328 \| good	18.275 \| good	1.275 \| good	5.696 \| good	0.182 \| good
2026-09-08T09:00:00.000Z	54 \| moderate	11.471 \| good	51.021 \| good	17.579 \| good	1.168 \| good	5.684 \| good	0.18 \| good
2026-09-08T10:00:00.000Z	58 \| moderate	12.579 \| fine	57.167 \| fine	14.105 \| good	1.049 \| good	5.755 \| good	0.178 \| good
2026-09-08T11:00:00.000Z	56 \| moderate	12.368 \| fine	55.307 \| fine	14.982 \| good	0.946 \| good	5.788 \| good	0.178 \| good
2026-09-08T12:00:00.000Z	58 \| moderate	12.541 \| fine	56.867 \| fine	15.681 \| good	0.826 \| good	5.706 \| good	0.179 \| good
2026-09-08T13:00:00.000Z	58 \| moderate	12.985 \| fine	58.758 \| fine	19.69 \| good	0.671 \| good	4.448 \| good	0.182 \| good
2026-09-08T14:00:00.000Z	56 \| moderate	12.336 \| fine	55.474 \| fine	26.09 \| good	0.573 \| good	3.603 \| good	0.186 \| good
2026-09-08T15:00:00.000Z	54 \| moderate	11.458 \| good	50.487 \| good	33.086 \| good	0.514 \| good	2.76 \| good	0.185 \| good
2026-09-08T16:00:00.000Z	56 \| moderate	11.558 \| good	51.157 \| good	40.617 \| good	0.511 \| good	1.767 \| good	0.181 \| good
2026-09-08T17:00:00.000Z	54 \| moderate	11.257 \| good	49.645 \| good	45.232 \| good	0.539 \| good	1.075 \| good	0.178 \| good
2026-09-08T18:00:00.000Z	54 \| moderate	11.211 \| good	49.485 \| good	45.842 \| good	0.568 \| good	0.791 \| good	0.177 \| good
2026-09-08T19:00:00.000Z	56 \| moderate	11.996 \| good	53.913 \| good	46.427 \| good	0.582 \| good	0.705 \| good	0.177 \| good
2026-09-08T20:00:00.000Z	56 \| moderate	11.765 \| good	51.996 \| good	45.968 \| good	0.585 \| good	0.707 \| good	0.178 \| good
2026-09-08T21:00:00.000Z	54 \| moderate	11.2 \| good	49.55 \| good	49.068 \| good	0.585 \| good	0.767 \| good	0.179 \| good
2026-09-08T22:00:00.000Z	56 \| moderate	11.814 \| good	52.577 \| good	50.495 \| good	0.571 \| good	1.003 \| good	0.182 \| good
2026-09-08T23:00:00.000Z	58 \| moderate	13.139 \| fine	58.817 \| fine	47.228 \| good	0.544 \| good	1.563 \| good	0.187 \| good
2026-09-09T00:00:00.000Z	62 \| moderate	15.388 \| fine	68.808 \| fine	43.989 \| good	0.579 \| good	2.158 \| good	0.19 \| good
2026-09-09T01:00:00.000Z	62 \| moderate	14.823 \| fine	66.543 \| fine	40.439 \| good	0.648 \| good	2.609 \| good	0.191 \| good
2026-09-09T02:00:00.000Z	58 \| moderate	12.55 \| fine	57 \| fine	39.437 \| good	0.711 \| good	2.9 \| good	0.191 \| good
2026-09-09T03:00:00.000Z	56 \| moderate	11.664 \| good	51.067 \| good	37.863 \| good	0.792 \| good	3.014 \| good	0.189 \| good
2026-09-09T04:00:00.000Z	52 \| moderate	10.276 \| good	45.121 \| good	35.19 \| good	0.882 \| good	3.024 \| good	0.188 \| good
2026-09-09T05:00:00.000Z	54 \| moderate	10.782 \| good	47.895 \| good	32.982 \| good	0.941 \| good	2.935 \| good	0.189 \| good
2026-09-09T06:00:00.000Z	52 \| moderate	10.106 \| good	44.93 \| good	31.065 \| good	0.947 \| good	2.891 \| good	0.192 \| good
2026-09-09T07:00:00.000Z	56 \| moderate	11.506 \| good	51.011 \| good	28.691 \| good	0.938 \| good	3.003 \| good	0.196 \| good
2026-09-09T08:00:00.000Z	44 \| good	8.061 \| good	35.366 \| good	27.803 \| good	0.91 \| good	3.066 \| good	0.199 \| good
2026-09-09T09:00:00.000Z	49 \| good	9.186 \| good	41.065 \| good	26.67 \| good	0.888 \| good	3.192 \| good	0.2 \| good
2026-09-09T10:00:00.000Z	56 \| moderate	11.896 \| good	52.669 \| good	25.548 \| good	0.848 \| good	3.119 \| good	0.198 \| good
2026-09-09T11:00:00.000Z	52 \| moderate	10.497 \| good	46.222 \| good	23.357 \| good	0.685 \| good	2.925 \| good	0.192 \| good
2026-09-09T12:00:00.000Z	34 \| good	5.801 \| good	5.988 \| good	36.6 \| good	0.544 \| good	2.668 \| good	0.187 \| good

Real-time air quality index in Freeport, Illinois today

Common air pollutants in Freeport, Illinois

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Freeport, Illinois air quality forecast and history

Empower business decisions with accurate air quality data

Freeport, Illinois air quality map: Real-time AQI near you

Air quality in nearby cities

Monroe, Wisconsin

Rockford, Illinois

Loves Park, Illinois

Machesney Park, Illinois

Roscoe, Illinois

Dixon, Illinois

How accurate is Illinois, USA air quality data?

Air quality levels in US

Frequently asked questions

How frequently is the air quality data for Freeport, Illinois updated?

When did Freeport, Illinois experience the worst air quality in the last 24 hours?

When did Freeport, Illinois have its best air quality in the last 24 hours?

What is the real-time air quality index for Freeport, Illinois?

Which pollutant is found most often in Freeport, Illinois?

What can I do if the air quality in Freeport, Illinois is poor?

What are the current PM2.5 levels in Freeport, Illinois?

What are the current PM10 levels at Freeport, Illinois?

What are the current carbon monoxide (CO) levels at Freeport, Illinois?

What are the current sulfur dioxide (SO2) levels at Freeport, Illinois?

What are the current ozone (O3) levels at Freeport, Illinois?

What are the current nitrogen dioxide (NO2) levels at Freeport, Illinois?

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 Freeport, Illinois?

What are the current PM₁₀ levels at Freeport, Illinois?

What are the current sulfur dioxide (SO₂) levels at Freeport, Illinois?

What are the current ozone (O₃) levels at Freeport, Illinois?

What are the current nitrogen dioxide (NO₂) levels at Freeport, Illinois?