What are the current PM10 levels at Freeport, Illinois?

The current PM10 levels in Freeport, Illinois are 13.038 μg/m3.

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

The current sulfur dioxide (SO2) levels in Freeport, Illinois are 0.33 ppb.

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

The current ozone (O3) levels at Freeport, Illinois is 26.288 ppm.

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

The current nitrogen dioxide (NO2) levels at Freeport, Illinois is 1.578 ppb.

Real-time air quality index in Freeport, Illinois today

Name: Live air pollution levels in Freeport, Illinois today
Creator: Ambee

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)

Moderate

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)

24.55 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

116.40 μg/m³

155

255

425

605+

Ozone (O₃)

37.90 ppb

201

201+

Sulfur Dioxide (SO₂)

0.63 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

5.64 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.16 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
2025-07-20T08:00:00.000Z	25 \| good	3.969 \| good	15.545 \| good	26.873 \| good	0.36 \| good	3.219 \| good	0.246 \| good
2025-07-20T09:00:00.000Z	23 \| good	3.78 \| good	15.812 \| good	25.212 \| good	0.327 \| good	4.366 \| good	0.22 \| good
2025-07-20T10:00:00.000Z	27 \| good	5.221 \| good	14.314 \| good	20.038 \| good	0.29 \| good	4.404 \| good	0.179 \| good
2025-07-20T11:00:00.000Z	27 \| good	4.772 \| good	20.398 \| good	24.701 \| good	0.302 \| good	2.676 \| good	0.1 \| good
2025-07-20T12:00:00.000Z	27 \| good	5.252 \| good	22.341 \| good	19.944 \| good	0.388 \| good	2.791 \| good	0.1 \| good
2025-07-20T13:00:00.000Z	27 \| good	4.986 \| good	18.844 \| good	28.423 \| good	0.295 \| good	2.445 \| good	0.1 \| good
2025-07-20T14:00:00.000Z	27 \| good	4.779 \| good	15.194 \| good	26.034 \| good	0.284 \| good	1.949 \| good	0.162 \| good
2025-07-20T15:00:00.000Z	27 \| good	4.735 \| good	18.759 \| good	27.571 \| good	0.242 \| good	1.975 \| good	0.112 \| good
2025-07-20T16:00:00.000Z	24 \| good	3.629 \| good	17.688 \| good	25.959 \| good	0.242 \| good	1.59 \| good	0.147 \| good
2025-07-20T17:00:00.000Z	27 \| good	2.624 \| good	14.121 \| good	29.389 \| good	0.246 \| good	1.789 \| good	0.112 \| good
2025-07-20T18:00:00.000Z	29 \| good	2.912 \| good	11.344 \| good	31.415 \| good	0.244 \| good	1.638 \| good	0.123 \| good
2025-07-20T19:00:00.000Z	32 \| good	3.685 \| good	23.531 \| good	34.751 \| good	0.372 \| good	1.823 \| good	0.123 \| good
2025-07-20T20:00:00.000Z	30 \| good	5.23 \| good	16.765 \| good	31.975 \| good	0.645 \| good	1.453 \| good	0.123 \| good
2025-07-20T21:00:00.000Z	33 \| good	5.596 \| good	16.323 \| good	32.183 \| good	0.952 \| good	1.213 \| good	0.123 \| good
2025-07-20T22:00:00.000Z	30 \| good	3.83 \| good	15.395 \| good	31.639 \| good	0.571 \| good	1.265 \| good	0.124 \| good
2025-07-20T23:00:00.000Z	28 \| good	3.564 \| good	15.221 \| good	30.131 \| good	0.609 \| good	1.538 \| good	0.179 \| good
2025-07-21T00:00:00.000Z	32 \| good	5.002 \| good	14.737 \| good	34.995 \| good	0.336 \| good	1.688 \| good	0.228 \| good
2025-07-21T01:00:00.000Z	31 \| good	4.373 \| good	24.741 \| good	32.933 \| good	0.358 \| good	2.23 \| good	0.228 \| good
2025-07-21T02:00:00.000Z	38 \| good	7.4 \| good	26.387 \| good	33.383 \| good	0.439 \| good	2.875 \| good	0.228 \| good
2025-07-21T03:00:00.000Z	38 \| good	7.4 \| good	29.194 \| good	32.01 \| good	0.443 \| good	2.688 \| good	0.238 \| good
2025-07-21T04:00:00.000Z	44 \| good	8.369 \| good	29.832 \| good	27.189 \| good	0.36 \| good	2.288 \| good	0.228 \| good
2025-07-21T05:00:00.000Z	58 \| moderate	12.554 \| fine	39.733 \| good	29.649 \| good	0.352 \| good	2.193 \| good	0.228 \| good
2025-07-21T06:00:00.000Z	79 \| moderate	23.509 \| fine	80.264 \| fine	28.486 \| good	0.376 \| good	2.19 \| good	0.204 \| good
2025-07-21T07:00:00.000Z	99 \| moderate	34.891 \| fine	120.086 \| fine	28.293 \| good	0.415 \| good	2.311 \| good	0.204 \| good
2025-07-21T08:00:00.000Z	134 \| sensitive	48.765 \| moderate	106.444 \| fine	30.578 \| good	0.364 \| good	2.848 \| good	0.204 \| good
2025-07-21T09:00:00.000Z	124 \| sensitive	44.582 \| moderate	97.892 \| fine	30.513 \| good	0.409 \| good	2.935 \| good	0.179 \| good
2025-07-21T10:00:00.000Z	127 \| sensitive	45.928 \| moderate	139.758 \| fine	24.032 \| good	0.456 \| good	6.709 \| good	0.179 \| good
2025-07-21T11:00:00.000Z	107 \| sensitive	38.104 \| moderate	139.542 \| fine	23.463 \| good	0.591 \| good	4.692 \| good	0.155 \| good
2025-07-21T12:00:00.000Z	107 \| sensitive	37.532 \| moderate	137.37 \| fine	29.574 \| good	0.724 \| good	6.033 \| good	0.155 \| good
2025-07-21T13:00:00.000Z	134 \| sensitive	48.703 \| moderate	167.465 \| moderate	28.44 \| good	0.884 \| good	5.018 \| good	0.195 \| good
2025-07-21T14:00:00.000Z	134 \| sensitive	48.847 \| moderate	218.706 \| moderate	29.096 \| good	0.947 \| good	2.471 \| good	0.171 \| good
2025-07-21T15:00:00.000Z	105 \| sensitive	37.076 \| moderate	80.809 \| fine	29.274 \| good	0.866 \| good	2.94 \| good	0.171 \| good
2025-07-21T16:00:00.000Z	66 \| moderate	17.274 \| fine	49.248 \| good	30.474 \| good	0.81 \| good	1.95 \| good	0.141 \| good
2025-07-21T17:00:00.000Z	60 \| moderate	13.868 \| fine	56.389 \| fine	35.378 \| good	0.782 \| good	1.532 \| good	0.141 \| good
2025-07-21T18:00:00.000Z	69 \| moderate	18.718 \| fine	77.145 \| fine	37.415 \| good	0.619 \| good	1.8 \| good	0.157 \| good
2025-07-21T19:00:00.000Z	69 \| moderate	18.654 \| fine	56.884 \| fine	42.694 \| good	0.561 \| good	1.922 \| good	0.225 \| good
2025-07-21T20:00:00.000Z	67 \| moderate	17.913 \| fine	60.964 \| fine	46.685 \| good	0.529 \| good	1.605 \| good	0.173 \| good
2025-07-21T21:00:00.000Z	66 \| moderate	17.094 \| fine	81.199 \| fine	52.881 \| good	1.014 \| good	1.768 \| good	0.2 \| good
2025-07-21T22:00:00.000Z	62 \| moderate	15.032 \| fine	59.579 \| fine	53.79 \| good	1.043 \| good	1.947 \| good	0.224 \| good
2025-07-21T23:00:00.000Z	69 \| moderate	19.202 \| fine	76.366 \| fine	46.499 \| good	0.689 \| good	1.615 \| good	0.263 \| good
2025-07-22T00:00:00.000Z	69 \| moderate	19.488 \| fine	87.61 \| fine	44.463 \| good	0.749 \| good	1.876 \| good	0.287 \| good
2025-07-22T01:00:00.000Z	66 \| moderate	17.488 \| fine	70.388 \| fine	40.779 \| good	0.909 \| good	2.186 \| good	0.308 \| good
2025-07-22T02:00:00.000Z	75 \| moderate	22.057 \| fine	95.119 \| fine	40.595 \| good	0.867 \| good	2.846 \| good	0.283 \| good
2025-07-22T03:00:00.000Z	79 \| moderate	24.035 \| fine	104.556 \| fine	28.575 \| good	0.889 \| good	4.651 \| good	0.264 \| good
2025-07-22T04:00:00.000Z	75 \| moderate	22.104 \| fine	90.556 \| fine	35.165 \| good	0.479 \| good	4.326 \| good	0.21 \| good
2025-07-22T05:00:00.000Z	84 \| moderate	26.635 \| fine	100.821 \| fine	36.033 \| good	0.63 \| good	5.365 \| good	0.161 \| good
2025-07-22T06:00:00.000Z	81 \| moderate	24.548 \| fine	116.4 \| fine	37.896 \| good	0.627 \| good	5.636 \| good	0.159 \| good
2025-07-22T07:00:00.000Z	81 \| moderate	25.429 \| fine	94.722 \| fine	27.324 \| good	0.546 \| good	5.517 \| good	0.141 \| good
2025-07-22T07:00:00.000Z	81 \| moderate	24.548 \| fine	116.4 \| fine	37.896 \| good	0.627 \| good	5.636 \| good	0.159 \| good
2025-07-18T03:00:00.000Z	54 \| moderate	10.606 \| good	47.022 \| good	32.203 \| good	0.159 \| good	5.806 \| good	0.174 \| good
2025-07-18T04:00:00.000Z	52 \| moderate	9.872 \| good	44.062 \| good	26.362 \| good	0.247 \| good	5.797 \| good	0.173 \| good
2025-07-18T05:00:00.000Z	49 \| good	8.751 \| good	38.446 \| good	22.015 \| good	0.336 \| good	5.788 \| good	0.172 \| good
2025-07-18T06:00:00.000Z	44 \| good	7.85 \| good	34.361 \| good	19.808 \| good	0.424 \| good	5.779 \| good	0.171 \| good
2025-07-18T07:00:00.000Z	38 \| good	7.383 \| good	32.222 \| good	17.972 \| good	0.439 \| good	5.754 \| good	0.167 \| good
2025-07-18T08:00:00.000Z	38 \| good	7.06 \| good	31.253 \| good	17.177 \| good	0.454 \| good	5.73 \| good	0.162 \| good
2025-07-18T09:00:00.000Z	33 \| good	6.15 \| good	27.222 \| good	15.316 \| good	0.469 \| good	5.705 \| good	0.158 \| good
2025-07-18T10:00:00.000Z	33 \| good	5.527 \| good	23.848 \| good	16.093 \| good	0.433 \| good	5.218 \| good	0.156 \| good
2025-07-18T11:00:00.000Z	27 \| good	4.95 \| good	21.189 \| good	14.627 \| good	0.396 \| good	4.73 \| good	0.153 \| good
2025-07-18T12:00:00.000Z	22 \| good	4.211 \| good	18.626 \| good	17.356 \| good	0.36 \| good	4.243 \| good	0.151 \| good
2025-07-18T13:00:00.000Z	22 \| good	3.847 \| good	17 \| good	22.993 \| good	0.393 \| good	3.409 \| good	0.146 \| good
2025-07-18T14:00:00.000Z	27 \| good	5.472 \| good	23.222 \| good	27.032 \| good	0.426 \| good	2.575 \| good	0.141 \| good
2025-07-18T15:00:00.000Z	38 \| good	6.681 \| good	29.895 \| good	32.682 \| good	0.459 \| good	1.742 \| good	0.136 \| good
2025-07-18T16:00:00.000Z	38 \| good	7.317 \| good	32.154 \| good	35.532 \| good	0.427 \| good	1.394 \| good	0.135 \| good
2025-07-18T17:00:00.000Z	44 \| good	7.664 \| good	33.728 \| good	36.801 \| good	0.395 \| good	1.047 \| good	0.134 \| good
2025-07-18T18:00:00.000Z	38 \| good	6.952 \| good	30.894 \| good	37.248 \| good	0.363 \| good	0.699 \| good	0.133 \| good
2025-07-18T19:00:00.000Z	33 \| good	6.353 \| good	28.611 \| good	36.424 \| good	0.388 \| good	0.789 \| good	0.136 \| good
2025-07-18T20:00:00.000Z	33 \| good	5.699 \| good	24.132 \| good	35.038 \| good	0.413 \| good	0.879 \| good	0.139 \| good
2025-07-18T21:00:00.000Z	33 \| good	5.591 \| good	24.096 \| good	34.194 \| good	0.437 \| good	0.968 \| good	0.142 \| good
2025-07-18T22:00:00.000Z	33 \| good	5.993 \| good	26.157 \| good	36.374 \| good	0.453 \| good	1.463 \| good	0.149 \| good
2025-07-18T23:00:00.000Z	34 \| good	4 \| good	17.453 \| good	36.693 \| good	0.47 \| good	1.957 \| good	0.157 \| good
2025-07-19T00:00:00.000Z	38 \| good	7.439 \| good	32.618 \| good	36.77 \| good	0.486 \| good	2.451 \| good	0.165 \| good
2025-07-19T01:00:00.000Z	44 \| good	7.94 \| good	34.602 \| good	40.706 \| good	0.494 \| good	4.286 \| good	0.181 \| good
2025-07-19T02:00:00.000Z	44 \| good	8.271 \| good	36.327 \| good	36.291 \| good	0.502 \| good	6.121 \| good	0.197 \| good
2025-07-19T03:00:00.000Z	38 \| good	6.682 \| good	29.607 \| good	31.56 \| good	0.509 \| good	7.956 \| good	0.214 \| good
2025-07-19T04:00:00.000Z	44 \| good	7.566 \| good	33.451 \| good	29.84 \| good	0.571 \| good	7.473 \| good	0.21 \| good
2025-07-19T05:00:00.000Z	38 \| good	7.015 \| good	30.976 \| good	26.364 \| good	0.633 \| good	6.99 \| good	0.207 \| good
2025-07-19T06:00:00.000Z	38 \| good	6.688 \| good	29.49 \| good	24.065 \| good	0.695 \| good	6.507 \| good	0.203 \| good
2025-07-19T07:00:00.000Z	33 \| good	5.858 \| good	25.466 \| good	24.604 \| good	0.625 \| good	5.418 \| good	0.19 \| good
2025-07-19T08:00:00.000Z	38 \| good	7.033 \| good	31.363 \| good	23.861 \| good	0.555 \| good	4.329 \| good	0.178 \| good
2025-07-19T09:00:00.000Z	44 \| good	7.929 \| good	34.704 \| good	21.959 \| good	0.485 \| good	3.24 \| good	0.165 \| good
2025-07-19T10:00:00.000Z	38 \| good	6.651 \| good	29.587 \| good	22.414 \| good	0.403 \| good	3.19 \| good	0.169 \| good
2025-07-19T11:00:00.000Z	44 \| good	8.088 \| good	35.666 \| good	20.936 \| good	0.321 \| good	3.139 \| good	0.173 \| good
2025-07-19T12:00:00.000Z	44 \| good	7.757 \| good	34.187 \| good	22.139 \| good	0.24 \| good	3.089 \| good	0.176 \| good
2025-07-19T13:00:00.000Z	44 \| good	8.498 \| good	37.209 \| good	22.681 \| good	0.175 \| good	2.633 \| good	0.176 \| good
2025-07-19T14:00:00.000Z	44 \| good	7.915 \| good	34.672 \| good	23.833 \| good	0.111 \| good	2.177 \| good	0.175 \| good
2025-07-19T15:00:00.000Z	44 \| good	7.869 \| good	34.231 \| good	28.536 \| good	0.046 \| good	1.721 \| good	0.174 \| good
2025-07-19T16:00:00.000Z	44 \| good	8.116 \| good	35.778 \| good	36.027 \| good	0.045 \| good	1.469 \| good	0.172 \| good
2025-07-19T17:00:00.000Z	49 \| good	8.889 \| good	39.219 \| good	38.153 \| good	0.043 \| good	1.216 \| good	0.17 \| good
2025-07-19T18:00:00.000Z	52 \| moderate	9.697 \| good	43.039 \| good	38.532 \| good	0.042 \| good	0.964 \| good	0.168 \| good
2025-07-19T19:00:00.000Z	54 \| moderate	10.628 \| good	47.029 \| good	39.201 \| good	0.04 \| good	0.878 \| good	0.169 \| good
2025-07-19T20:00:00.000Z	52 \| moderate	10.285 \| good	45.544 \| good	37.408 \| good	0.039 \| good	0.792 \| good	0.17 \| good
2025-07-19T21:00:00.000Z	52 \| moderate	10.31 \| good	45.708 \| good	36.747 \| good	0.037 \| good	0.706 \| good	0.17 \| good
2025-07-19T22:00:00.000Z	54 \| moderate	10.75 \| good	47.93 \| good	40.031 \| good	0.04 \| good	1.033 \| good	0.174 \| good
2025-07-19T23:00:00.000Z	52 \| moderate	9.719 \| good	43 \| good	40.702 \| good	0.043 \| good	1.359 \| good	0.178 \| good
2025-07-20T00:00:00.000Z	37 \| good	1.881 \| good	2.298 \| good	40.365 \| good	0.046 \| good	1.676 \| good	0.181 \| good
2025-07-20T01:00:00.000Z	54 \| moderate	10.534 \| good	46.809 \| good	38.858 \| good	0.069 \| good	2.905 \| good	0.194 \| good
2025-07-20T02:00:00.000Z	54 \| moderate	11.302 \| good	50.025 \| good	35.511 \| good	0.092 \| good	4.124 \| good	0.206 \| good

Freeport

Empower business decisions with accurate air quality data

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

0.17ppm

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

Air quality levels in US

Check live rankings of places in the USA affected by air pollution.

View Polluted Cities

Check live rankings of places in the USA with the cleanest air.

View Clean Cities

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 02:00:00 on 2025-07-17.

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

The best air quality in Freeport, Illinois was recorded at 02:00:00 on 2025-07-17.

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

The real-time air quality index in Freeport, Illinois is 24, currently categorized as Good.

Which pollutant is found most often in Freeport, Illinois?

The most common pollutant in Freeport, Illinois is O3.

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 3.319 μg/m³.

What are the current PM₁₀ levels at Freeport, Illinois?

The current PM₁₀ levels in Freeport, Illinois are 13.038 μg/m³.

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

The current carbon monoxide (CO) level in Freeport, Illinois is 0.171 ppm.

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

The current sulfur dioxide (SO₂) levels in Freeport, Illinois are 0.33 ppb.

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

The current ozone (O₃) levels at Freeport, Illinois is 26.288 ppm.

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

The current nitrogen dioxide (NO₂) levels at Freeport, Illinois is 1.578 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions

Refund Policy

Terms & Conditions

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-20T08:00:00.000Z	25 \| good	3.969 \| good	15.545 \| good	26.873 \| good	0.36 \| good	3.219 \| good	0.246 \| good
2025-07-20T09:00:00.000Z	23 \| good	3.78 \| good	15.812 \| good	25.212 \| good	0.327 \| good	4.366 \| good	0.22 \| good
2025-07-20T10:00:00.000Z	27 \| good	5.221 \| good	14.314 \| good	20.038 \| good	0.29 \| good	4.404 \| good	0.179 \| good
2025-07-20T11:00:00.000Z	27 \| good	4.772 \| good	20.398 \| good	24.701 \| good	0.302 \| good	2.676 \| good	0.1 \| good
2025-07-20T12:00:00.000Z	27 \| good	5.252 \| good	22.341 \| good	19.944 \| good	0.388 \| good	2.791 \| good	0.1 \| good
2025-07-20T13:00:00.000Z	27 \| good	4.986 \| good	18.844 \| good	28.423 \| good	0.295 \| good	2.445 \| good	0.1 \| good
2025-07-20T14:00:00.000Z	27 \| good	4.779 \| good	15.194 \| good	26.034 \| good	0.284 \| good	1.949 \| good	0.162 \| good
2025-07-20T15:00:00.000Z	27 \| good	4.735 \| good	18.759 \| good	27.571 \| good	0.242 \| good	1.975 \| good	0.112 \| good
2025-07-20T16:00:00.000Z	24 \| good	3.629 \| good	17.688 \| good	25.959 \| good	0.242 \| good	1.59 \| good	0.147 \| good
2025-07-20T17:00:00.000Z	27 \| good	2.624 \| good	14.121 \| good	29.389 \| good	0.246 \| good	1.789 \| good	0.112 \| good
2025-07-20T18:00:00.000Z	29 \| good	2.912 \| good	11.344 \| good	31.415 \| good	0.244 \| good	1.638 \| good	0.123 \| good
2025-07-20T19:00:00.000Z	32 \| good	3.685 \| good	23.531 \| good	34.751 \| good	0.372 \| good	1.823 \| good	0.123 \| good
2025-07-20T20:00:00.000Z	30 \| good	5.23 \| good	16.765 \| good	31.975 \| good	0.645 \| good	1.453 \| good	0.123 \| good
2025-07-20T21:00:00.000Z	33 \| good	5.596 \| good	16.323 \| good	32.183 \| good	0.952 \| good	1.213 \| good	0.123 \| good
2025-07-20T22:00:00.000Z	30 \| good	3.83 \| good	15.395 \| good	31.639 \| good	0.571 \| good	1.265 \| good	0.124 \| good
2025-07-20T23:00:00.000Z	28 \| good	3.564 \| good	15.221 \| good	30.131 \| good	0.609 \| good	1.538 \| good	0.179 \| good
2025-07-21T00:00:00.000Z	32 \| good	5.002 \| good	14.737 \| good	34.995 \| good	0.336 \| good	1.688 \| good	0.228 \| good
2025-07-21T01:00:00.000Z	31 \| good	4.373 \| good	24.741 \| good	32.933 \| good	0.358 \| good	2.23 \| good	0.228 \| good
2025-07-21T02:00:00.000Z	38 \| good	7.4 \| good	26.387 \| good	33.383 \| good	0.439 \| good	2.875 \| good	0.228 \| good
2025-07-21T03:00:00.000Z	38 \| good	7.4 \| good	29.194 \| good	32.01 \| good	0.443 \| good	2.688 \| good	0.238 \| good
2025-07-21T04:00:00.000Z	44 \| good	8.369 \| good	29.832 \| good	27.189 \| good	0.36 \| good	2.288 \| good	0.228 \| good
2025-07-21T05:00:00.000Z	58 \| moderate	12.554 \| fine	39.733 \| good	29.649 \| good	0.352 \| good	2.193 \| good	0.228 \| good
2025-07-21T06:00:00.000Z	79 \| moderate	23.509 \| fine	80.264 \| fine	28.486 \| good	0.376 \| good	2.19 \| good	0.204 \| good
2025-07-21T07:00:00.000Z	99 \| moderate	34.891 \| fine	120.086 \| fine	28.293 \| good	0.415 \| good	2.311 \| good	0.204 \| good
2025-07-21T08:00:00.000Z	134 \| sensitive	48.765 \| moderate	106.444 \| fine	30.578 \| good	0.364 \| good	2.848 \| good	0.204 \| good
2025-07-21T09:00:00.000Z	124 \| sensitive	44.582 \| moderate	97.892 \| fine	30.513 \| good	0.409 \| good	2.935 \| good	0.179 \| good
2025-07-21T10:00:00.000Z	127 \| sensitive	45.928 \| moderate	139.758 \| fine	24.032 \| good	0.456 \| good	6.709 \| good	0.179 \| good
2025-07-21T11:00:00.000Z	107 \| sensitive	38.104 \| moderate	139.542 \| fine	23.463 \| good	0.591 \| good	4.692 \| good	0.155 \| good
2025-07-21T12:00:00.000Z	107 \| sensitive	37.532 \| moderate	137.37 \| fine	29.574 \| good	0.724 \| good	6.033 \| good	0.155 \| good
2025-07-21T13:00:00.000Z	134 \| sensitive	48.703 \| moderate	167.465 \| moderate	28.44 \| good	0.884 \| good	5.018 \| good	0.195 \| good
2025-07-21T14:00:00.000Z	134 \| sensitive	48.847 \| moderate	218.706 \| moderate	29.096 \| good	0.947 \| good	2.471 \| good	0.171 \| good
2025-07-21T15:00:00.000Z	105 \| sensitive	37.076 \| moderate	80.809 \| fine	29.274 \| good	0.866 \| good	2.94 \| good	0.171 \| good
2025-07-21T16:00:00.000Z	66 \| moderate	17.274 \| fine	49.248 \| good	30.474 \| good	0.81 \| good	1.95 \| good	0.141 \| good
2025-07-21T17:00:00.000Z	60 \| moderate	13.868 \| fine	56.389 \| fine	35.378 \| good	0.782 \| good	1.532 \| good	0.141 \| good
2025-07-21T18:00:00.000Z	69 \| moderate	18.718 \| fine	77.145 \| fine	37.415 \| good	0.619 \| good	1.8 \| good	0.157 \| good
2025-07-21T19:00:00.000Z	69 \| moderate	18.654 \| fine	56.884 \| fine	42.694 \| good	0.561 \| good	1.922 \| good	0.225 \| good
2025-07-21T20:00:00.000Z	67 \| moderate	17.913 \| fine	60.964 \| fine	46.685 \| good	0.529 \| good	1.605 \| good	0.173 \| good
2025-07-21T21:00:00.000Z	66 \| moderate	17.094 \| fine	81.199 \| fine	52.881 \| good	1.014 \| good	1.768 \| good	0.2 \| good
2025-07-21T22:00:00.000Z	62 \| moderate	15.032 \| fine	59.579 \| fine	53.79 \| good	1.043 \| good	1.947 \| good	0.224 \| good
2025-07-21T23:00:00.000Z	69 \| moderate	19.202 \| fine	76.366 \| fine	46.499 \| good	0.689 \| good	1.615 \| good	0.263 \| good
2025-07-22T00:00:00.000Z	69 \| moderate	19.488 \| fine	87.61 \| fine	44.463 \| good	0.749 \| good	1.876 \| good	0.287 \| good
2025-07-22T01:00:00.000Z	66 \| moderate	17.488 \| fine	70.388 \| fine	40.779 \| good	0.909 \| good	2.186 \| good	0.308 \| good
2025-07-22T02:00:00.000Z	75 \| moderate	22.057 \| fine	95.119 \| fine	40.595 \| good	0.867 \| good	2.846 \| good	0.283 \| good
2025-07-22T03:00:00.000Z	79 \| moderate	24.035 \| fine	104.556 \| fine	28.575 \| good	0.889 \| good	4.651 \| good	0.264 \| good
2025-07-22T04:00:00.000Z	75 \| moderate	22.104 \| fine	90.556 \| fine	35.165 \| good	0.479 \| good	4.326 \| good	0.21 \| good
2025-07-22T05:00:00.000Z	84 \| moderate	26.635 \| fine	100.821 \| fine	36.033 \| good	0.63 \| good	5.365 \| good	0.161 \| good
2025-07-22T06:00:00.000Z	81 \| moderate	24.548 \| fine	116.4 \| fine	37.896 \| good	0.627 \| good	5.636 \| good	0.159 \| good
2025-07-22T07:00:00.000Z	81 \| moderate	25.429 \| fine	94.722 \| fine	27.324 \| good	0.546 \| good	5.517 \| good	0.141 \| good
2025-07-22T07:00:00.000Z	81 \| moderate	24.548 \| fine	116.4 \| fine	37.896 \| good	0.627 \| good	5.636 \| good	0.159 \| good
2025-07-18T03:00:00.000Z	54 \| moderate	10.606 \| good	47.022 \| good	32.203 \| good	0.159 \| good	5.806 \| good	0.174 \| good
2025-07-18T04:00:00.000Z	52 \| moderate	9.872 \| good	44.062 \| good	26.362 \| good	0.247 \| good	5.797 \| good	0.173 \| good
2025-07-18T05:00:00.000Z	49 \| good	8.751 \| good	38.446 \| good	22.015 \| good	0.336 \| good	5.788 \| good	0.172 \| good
2025-07-18T06:00:00.000Z	44 \| good	7.85 \| good	34.361 \| good	19.808 \| good	0.424 \| good	5.779 \| good	0.171 \| good
2025-07-18T07:00:00.000Z	38 \| good	7.383 \| good	32.222 \| good	17.972 \| good	0.439 \| good	5.754 \| good	0.167 \| good
2025-07-18T08:00:00.000Z	38 \| good	7.06 \| good	31.253 \| good	17.177 \| good	0.454 \| good	5.73 \| good	0.162 \| good
2025-07-18T09:00:00.000Z	33 \| good	6.15 \| good	27.222 \| good	15.316 \| good	0.469 \| good	5.705 \| good	0.158 \| good
2025-07-18T10:00:00.000Z	33 \| good	5.527 \| good	23.848 \| good	16.093 \| good	0.433 \| good	5.218 \| good	0.156 \| good
2025-07-18T11:00:00.000Z	27 \| good	4.95 \| good	21.189 \| good	14.627 \| good	0.396 \| good	4.73 \| good	0.153 \| good
2025-07-18T12:00:00.000Z	22 \| good	4.211 \| good	18.626 \| good	17.356 \| good	0.36 \| good	4.243 \| good	0.151 \| good
2025-07-18T13:00:00.000Z	22 \| good	3.847 \| good	17 \| good	22.993 \| good	0.393 \| good	3.409 \| good	0.146 \| good
2025-07-18T14:00:00.000Z	27 \| good	5.472 \| good	23.222 \| good	27.032 \| good	0.426 \| good	2.575 \| good	0.141 \| good
2025-07-18T15:00:00.000Z	38 \| good	6.681 \| good	29.895 \| good	32.682 \| good	0.459 \| good	1.742 \| good	0.136 \| good
2025-07-18T16:00:00.000Z	38 \| good	7.317 \| good	32.154 \| good	35.532 \| good	0.427 \| good	1.394 \| good	0.135 \| good
2025-07-18T17:00:00.000Z	44 \| good	7.664 \| good	33.728 \| good	36.801 \| good	0.395 \| good	1.047 \| good	0.134 \| good
2025-07-18T18:00:00.000Z	38 \| good	6.952 \| good	30.894 \| good	37.248 \| good	0.363 \| good	0.699 \| good	0.133 \| good
2025-07-18T19:00:00.000Z	33 \| good	6.353 \| good	28.611 \| good	36.424 \| good	0.388 \| good	0.789 \| good	0.136 \| good
2025-07-18T20:00:00.000Z	33 \| good	5.699 \| good	24.132 \| good	35.038 \| good	0.413 \| good	0.879 \| good	0.139 \| good
2025-07-18T21:00:00.000Z	33 \| good	5.591 \| good	24.096 \| good	34.194 \| good	0.437 \| good	0.968 \| good	0.142 \| good
2025-07-18T22:00:00.000Z	33 \| good	5.993 \| good	26.157 \| good	36.374 \| good	0.453 \| good	1.463 \| good	0.149 \| good
2025-07-18T23:00:00.000Z	34 \| good	4 \| good	17.453 \| good	36.693 \| good	0.47 \| good	1.957 \| good	0.157 \| good
2025-07-19T00:00:00.000Z	38 \| good	7.439 \| good	32.618 \| good	36.77 \| good	0.486 \| good	2.451 \| good	0.165 \| good
2025-07-19T01:00:00.000Z	44 \| good	7.94 \| good	34.602 \| good	40.706 \| good	0.494 \| good	4.286 \| good	0.181 \| good
2025-07-19T02:00:00.000Z	44 \| good	8.271 \| good	36.327 \| good	36.291 \| good	0.502 \| good	6.121 \| good	0.197 \| good
2025-07-19T03:00:00.000Z	38 \| good	6.682 \| good	29.607 \| good	31.56 \| good	0.509 \| good	7.956 \| good	0.214 \| good
2025-07-19T04:00:00.000Z	44 \| good	7.566 \| good	33.451 \| good	29.84 \| good	0.571 \| good	7.473 \| good	0.21 \| good
2025-07-19T05:00:00.000Z	38 \| good	7.015 \| good	30.976 \| good	26.364 \| good	0.633 \| good	6.99 \| good	0.207 \| good
2025-07-19T06:00:00.000Z	38 \| good	6.688 \| good	29.49 \| good	24.065 \| good	0.695 \| good	6.507 \| good	0.203 \| good
2025-07-19T07:00:00.000Z	33 \| good	5.858 \| good	25.466 \| good	24.604 \| good	0.625 \| good	5.418 \| good	0.19 \| good
2025-07-19T08:00:00.000Z	38 \| good	7.033 \| good	31.363 \| good	23.861 \| good	0.555 \| good	4.329 \| good	0.178 \| good
2025-07-19T09:00:00.000Z	44 \| good	7.929 \| good	34.704 \| good	21.959 \| good	0.485 \| good	3.24 \| good	0.165 \| good
2025-07-19T10:00:00.000Z	38 \| good	6.651 \| good	29.587 \| good	22.414 \| good	0.403 \| good	3.19 \| good	0.169 \| good
2025-07-19T11:00:00.000Z	44 \| good	8.088 \| good	35.666 \| good	20.936 \| good	0.321 \| good	3.139 \| good	0.173 \| good
2025-07-19T12:00:00.000Z	44 \| good	7.757 \| good	34.187 \| good	22.139 \| good	0.24 \| good	3.089 \| good	0.176 \| good
2025-07-19T13:00:00.000Z	44 \| good	8.498 \| good	37.209 \| good	22.681 \| good	0.175 \| good	2.633 \| good	0.176 \| good
2025-07-19T14:00:00.000Z	44 \| good	7.915 \| good	34.672 \| good	23.833 \| good	0.111 \| good	2.177 \| good	0.175 \| good
2025-07-19T15:00:00.000Z	44 \| good	7.869 \| good	34.231 \| good	28.536 \| good	0.046 \| good	1.721 \| good	0.174 \| good
2025-07-19T16:00:00.000Z	44 \| good	8.116 \| good	35.778 \| good	36.027 \| good	0.045 \| good	1.469 \| good	0.172 \| good
2025-07-19T17:00:00.000Z	49 \| good	8.889 \| good	39.219 \| good	38.153 \| good	0.043 \| good	1.216 \| good	0.17 \| good
2025-07-19T18:00:00.000Z	52 \| moderate	9.697 \| good	43.039 \| good	38.532 \| good	0.042 \| good	0.964 \| good	0.168 \| good
2025-07-19T19:00:00.000Z	54 \| moderate	10.628 \| good	47.029 \| good	39.201 \| good	0.04 \| good	0.878 \| good	0.169 \| good
2025-07-19T20:00:00.000Z	52 \| moderate	10.285 \| good	45.544 \| good	37.408 \| good	0.039 \| good	0.792 \| good	0.17 \| good
2025-07-19T21:00:00.000Z	52 \| moderate	10.31 \| good	45.708 \| good	36.747 \| good	0.037 \| good	0.706 \| good	0.17 \| good
2025-07-19T22:00:00.000Z	54 \| moderate	10.75 \| good	47.93 \| good	40.031 \| good	0.04 \| good	1.033 \| good	0.174 \| good
2025-07-19T23:00:00.000Z	52 \| moderate	9.719 \| good	43 \| good	40.702 \| good	0.043 \| good	1.359 \| good	0.178 \| good
2025-07-20T00:00:00.000Z	37 \| good	1.881 \| good	2.298 \| good	40.365 \| good	0.046 \| good	1.676 \| good	0.181 \| good
2025-07-20T01:00:00.000Z	54 \| moderate	10.534 \| good	46.809 \| good	38.858 \| good	0.069 \| good	2.905 \| good	0.194 \| good
2025-07-20T02:00:00.000Z	54 \| moderate	11.302 \| good	50.025 \| good	35.511 \| good	0.092 \| good	4.124 \| good	0.206 \| 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?