What is the PM10 level in Belvidere, Illinois at the moment?

The PM10 concentration in Belvidere, Illinois is 9.551 μg/m3 at the moment.

What is the sulfur dioxide (SO2) level in Belvidere, Illinois at the moment?

Currently, Belvidere, Illinois has a sulfur dioxide (SO2) concentration of 1.026 ppb.

What is the ozone (O3) level in Belvidere, Illinois at the moment?

The current ozone (O3) level in Belvidere, Illinois at the moment is 6.881 ppm.

What is the nitrogen dioxide (NO2) level in Belvidere, Illinois at the moment?

Nitrogen dioxide (NO2) level in Belvidere, Illinois at the moment is 8.309 ppb.

Live air quality index in Belvidere, Illinois today

Q: What is the PM2.5 level in Belvidere, Illinois at the moment?

PM2.5 levels in Belvidere, Illinois are currently 3.334 μg/m3.

Stay updated with real-time air quality in Belvidere, 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

Belvidere, Illinois

Last updated: ... (Local time)

Major air pollutants in Belvidere, Illinois

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

4.19 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

13.48 μg/m³

155

255

425

605+

Ozone (O₃)

8.79 ppb

201

201+

Sulfur Dioxide (SO₂)

1.16 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

8.62 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.27 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Belvidere, Illinois

Get Live Pollen Counts

Belvidere, Illinois

Scroll To Air Quality Map

Track live Belvidere, Illinois air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-10-22T08:00:00.000Z	22 \| good	1.791 \| good	6.355 \| good	23.503 \| good	0.779 \| good	1.853 \| good	0.145 \| good
2025-10-22T09:00:00.000Z	21 \| good	1.79 \| good	5.212 \| good	23.224 \| good	0.686 \| good	1.886 \| good	0.1 \| good
2025-10-22T10:00:00.000Z	19 \| good	1.499 \| good	3.921 \| good	20.095 \| good	0.643 \| good	1.948 \| good	0.133 \| good
2025-10-22T11:00:00.000Z	19 \| good	1.597 \| good	6.441 \| good	21.203 \| good	0.686 \| good	2.644 \| good	0.149 \| good
2025-10-22T12:00:00.000Z	19 \| good	1.852 \| good	7.486 \| good	20.005 \| good	0.734 \| good	3.546 \| good	0.149 \| good
2025-10-22T13:00:00.000Z	19 \| good	1.853 \| good	7.736 \| good	19.837 \| good	0.734 \| good	3.729 \| good	0.205 \| good
2025-10-22T14:00:00.000Z	19 \| good	1.795 \| good	7.541 \| good	20.94 \| good	0.647 \| good	4.499 \| good	0.201 \| good
2025-10-22T15:00:00.000Z	19 \| good	1.614 \| good	5.313 \| good	19.718 \| good	0.711 \| good	3.678 \| good	0.194 \| good
2025-10-22T16:00:00.000Z	16 \| good	1.861 \| good	6.686 \| good	17.223 \| good	0.728 \| good	3.872 \| good	0.194 \| good
2025-10-22T17:00:00.000Z	17 \| good	1.892 \| good	6.822 \| good	18.211 \| good	0.71 \| good	3.244 \| good	0.194 \| good
2025-10-22T18:00:00.000Z	18 \| good	2.041 \| good	7.846 \| good	18.75 \| good	0.482 \| good	2.887 \| good	0.149 \| good
2025-10-22T19:00:00.000Z	18 \| good	1.902 \| good	6.419 \| good	18.555 \| good	0.436 \| good	2.903 \| good	0.194 \| good
2025-10-22T20:00:00.000Z	18 \| good	1.805 \| good	6.211 \| good	18.835 \| good	0.506 \| good	2.971 \| good	0.186 \| good
2025-10-22T21:00:00.000Z	16 \| good	2.08 \| good	10.649 \| good	17.428 \| good	0.452 \| good	3.121 \| good	0.252 \| good
2025-10-22T22:00:00.000Z	19 \| good	2.042 \| good	8.828 \| good	19.99 \| good	0.527 \| good	3.209 \| good	0.241 \| good
2025-10-22T23:00:00.000Z	22 \| good	2.04 \| good	8.969 \| good	24.391 \| good	0.702 \| good	3.522 \| good	0.241 \| good
2025-10-23T00:00:00.000Z	17 \| good	1.764 \| good	7.277 \| good	17.661 \| good	0.477 \| good	4.849 \| good	0.189 \| good
2025-10-23T01:00:00.000Z	16 \| good	1.689 \| good	7.142 \| good	17.02 \| good	0.472 \| good	5.343 \| good	0.16 \| good
2025-10-23T02:00:00.000Z	16 \| good	1.605 \| good	6.414 \| good	16.949 \| good	0.659 \| good	5.022 \| good	0.216 \| good
2025-10-23T03:00:00.000Z	14 \| good	1.79 \| good	6.2 \| good	14.979 \| good	0.476 \| good	4.699 \| good	0.216 \| good
2025-10-23T04:00:00.000Z	16 \| good	1.79 \| good	5.822 \| good	17.143 \| good	0.633 \| good	5.21 \| good	0.216 \| good
2025-10-23T05:00:00.000Z	14 \| good	1.841 \| good	6.931 \| good	15.118 \| good	0.7 \| good	5.123 \| good	0.259 \| good
2025-10-23T06:00:00.000Z	14 \| good	1.914 \| good	7.447 \| good	15.141 \| good	0.514 \| good	5.854 \| good	0.236 \| good
2025-10-23T07:00:00.000Z	13 \| good	2.061 \| good	6.078 \| good	13.599 \| good	0.548 \| good	6.34 \| good	0.224 \| good
2025-10-23T08:00:00.000Z	13 \| good	2.053 \| good	5.817 \| good	13.873 \| good	0.627 \| good	5.939 \| good	0.212 \| good
2025-10-23T09:00:00.000Z	11 \| good	2.115 \| good	7.434 \| good	10.421 \| good	0.517 \| good	5.427 \| good	0.188 \| good
2025-10-23T10:00:00.000Z	16 \| good	2.532 \| good	10.492 \| good	8.632 \| good	0.736 \| good	6.129 \| good	0.201 \| good
2025-10-23T11:00:00.000Z	16 \| good	2.807 \| good	10.016 \| good	10.053 \| good	0.82 \| good	5.814 \| good	0.252 \| good
2025-10-23T12:00:00.000Z	16 \| good	2.902 \| good	11.311 \| good	10.174 \| good	0.616 \| good	6.602 \| good	0.277 \| good
2025-10-23T13:00:00.000Z	16 \| good	3.366 \| good	13.959 \| good	11.037 \| good	0.687 \| good	7.095 \| good	0.288 \| good
2025-10-23T14:00:00.000Z	22 \| good	4.168 \| good	18.001 \| good	13.676 \| good	0.624 \| good	6.91 \| good	0.351 \| good
2025-10-23T15:00:00.000Z	22 \| good	3.95 \| good	16.322 \| good	11.343 \| good	0.923 \| good	5.58 \| good	0.208 \| good
2025-10-23T16:00:00.000Z	16 \| good	3.327 \| good	12.297 \| good	13.974 \| good	1.506 \| good	4.21 \| good	0.241 \| good
2025-10-23T17:00:00.000Z	16 \| good	3.327 \| good	8.817 \| good	15.229 \| good	1.126 \| good	3.936 \| good	0.23 \| good
2025-10-23T18:00:00.000Z	18 \| good	2.952 \| good	13.752 \| good	18.661 \| good	1.004 \| good	4.285 \| good	0.149 \| good
2025-10-23T19:00:00.000Z	19 \| good	2.448 \| good	6.508 \| good	21.305 \| good	1.072 \| good	4.309 \| good	0.186 \| good
2025-10-23T20:00:00.000Z	21 \| good	1.958 \| good	6.313 \| good	22.545 \| good	1.063 \| good	5.377 \| good	0.278 \| good
2025-10-23T21:00:00.000Z	22 \| good	1.884 \| good	6.091 \| good	24.3 \| good	1.062 \| good	4.533 \| good	0.22 \| good
2025-10-23T22:00:00.000Z	22 \| good	1.727 \| good	4.907 \| good	24.002 \| good	1.033 \| good	4.913 \| good	0.277 \| good
2025-10-23T23:00:00.000Z	22 \| good	1.856 \| good	6.248 \| good	23.571 \| good	0.97 \| good	5.131 \| good	0.222 \| good
2025-10-24T00:00:00.000Z	22 \| good	2.182 \| good	5.608 \| good	23.872 \| good	1.069 \| good	6.239 \| good	0.274 \| good
2025-10-24T01:00:00.000Z	19 \| good	3.088 \| good	11.118 \| good	20.263 \| good	1.755 \| good	10.432 \| good	0.285 \| good
2025-10-24T02:00:00.000Z	17 \| good	3.18 \| good	13.456 \| good	18.382 \| good	1.247 \| good	10.078 \| good	0.31 \| good
2025-10-24T03:00:00.000Z	11 \| good	1.827 \| good	7.571 \| good	9.967 \| good	0.368 \| good	6.438 \| good	0.16 \| good
2025-10-24T04:00:00.000Z	16 \| good	3.227 \| good	12.735 \| good	11.362 \| good	1.15 \| good	10.32 \| good	0.226 \| good
2025-10-24T05:00:00.000Z	16 \| good	3.334 \| good	9.551 \| good	6.881 \| good	1.026 \| good	8.309 \| good	0.248 \| good
2025-10-24T06:00:00.000Z	22 \| good	3.726 \| good	12.32 \| good	9.484 \| good	1.041 \| good	8.961 \| good	0.259 \| good
2025-10-24T07:00:00.000Z	22 \| good	4.186 \| good	13.482 \| good	8.788 \| good	1.157 \| good	8.624 \| good	0.27 \| good
2025-10-24T07:00:00.000Z	22 \| good	4.186 \| good	13.482 \| good	8.788 \| good	1.157 \| good	8.624 \| good	0.27 \| good
2025-10-24T07:00:00.000Z	9 \| good	0.902 \| good	3.464 \| good	10.447 \| good	0.349 \| good	6.17 \| good	0.154 \| good
2025-10-24T08:00:00.000Z	9 \| good	0.91 \| good	3.464 \| good	10.49 \| good	0.362 \| good	6.032 \| good	0.151 \| good
2025-10-24T09:00:00.000Z	7 \| good	1.02 \| good	4.17 \| good	7.925 \| good	0.374 \| good	5.895 \| good	0.149 \| good
2025-10-24T10:00:00.000Z	11 \| good	1.519 \| good	5.983 \| good	6.561 \| good	0.412 \| good	6.568 \| good	0.153 \| good
2025-10-24T11:00:00.000Z	11 \| good	2.103 \| good	8.566 \| good	6.62 \| good	0.45 \| good	7.241 \| good	0.156 \| good
2025-10-24T12:00:00.000Z	11 \| good	2.271 \| good	9.095 \| good	6.365 \| good	0.488 \| good	7.915 \| good	0.16 \| good
2025-10-24T13:00:00.000Z	16 \| good	2.673 \| good	11.216 \| good	8.333 \| good	0.554 \| good	6.724 \| good	0.162 \| good
2025-10-24T14:00:00.000Z	16 \| good	1.054 \| good	4.199 \| good	17.006 \| good	0.62 \| good	5.533 \| good	0.164 \| good
2025-10-24T15:00:00.000Z	19 \| good	1.09 \| good	4.221 \| good	20.926 \| good	0.686 \| good	4.343 \| good	0.166 \| good
2025-10-24T16:00:00.000Z	22 \| good	1.669 \| good	6.862 \| good	24.17 \| good	0.594 \| good	3.287 \| good	0.15 \| good
2025-10-24T17:00:00.000Z	23 \| good	2.357 \| good	9.484 \| good	25.311 \| good	0.503 \| good	2.23 \| good	0.135 \| good
2025-10-24T18:00:00.000Z	26 \| good	3.579 \| good	15.65 \| good	27.734 \| good	0.411 \| good	1.174 \| good	0.119 \| good
2025-10-24T19:00:00.000Z	28 \| good	3.309 \| good	14.325 \| good	29.983 \| good	0.417 \| good	1.245 \| good	0.119 \| good
2025-10-24T20:00:00.000Z	28 \| good	3.935 \| good	17.181 \| good	29.584 \| good	0.423 \| good	1.317 \| good	0.12 \| good
2025-10-24T21:00:00.000Z	30 \| good	4.969 \| good	21.304 \| good	31.976 \| good	0.429 \| good	1.388 \| good	0.12 \| good
2025-10-24T22:00:00.000Z	38 \| good	7.042 \| good	30.998 \| good	30.05 \| good	0.522 \| good	6.725 \| good	0.165 \| good
2025-10-24T23:00:00.000Z	38 \| good	7.288 \| good	32.127 \| good	24.756 \| good	0.616 \| good	12.062 \| good	0.21 \| good
2025-10-25T00:00:00.000Z	44 \| good	8.358 \| good	36.937 \| good	20.397 \| good	0.709 \| good	17.399 \| good	0.255 \| good
2025-10-25T01:00:00.000Z	33 \| good	6.116 \| good	27.159 \| good	18.267 \| good	0.88 \| good	18.438 \| good	0.264 \| good
2025-10-25T02:00:00.000Z	44 \| good	8.104 \| good	35.598 \| good	18.31 \| good	1.05 \| good	19.477 \| good	0.272 \| good
2025-10-25T03:00:00.000Z	56 \| moderate	11.869 \| good	53.113 \| good	11.284 \| good	1.22 \| good	20.515 \| good	0.281 \| good
2025-10-25T04:00:00.000Z	60 \| moderate	13.732 \| fine	61.998 \| fine	1.472 \| good	1.573 \| good	19.9 \| good	0.267 \| good
2025-10-25T05:00:00.000Z	67 \| moderate	18.283 \| fine	81.122 \| fine	1.053 \| good	1.926 \| good	19.284 \| good	0.252 \| good
2025-10-25T06:00:00.000Z	71 \| moderate	20.395 \| fine	89.901 \| fine	1.893 \| good	2.279 \| good	18.669 \| good	0.238 \| good
2025-10-25T07:00:00.000Z	77 \| moderate	23.188 \| fine	102.117 \| fine	2.599 \| good	2.546 \| good	18.583 \| good	0.231 \| good
2025-10-25T08:00:00.000Z	77 \| moderate	22.84 \| fine	100.145 \| fine	3.15 \| good	2.813 \| good	18.498 \| good	0.223 \| good
2025-10-25T09:00:00.000Z	75 \| moderate	21.504 \| fine	94.305 \| fine	2.541 \| good	3.081 \| good	18.413 \| good	0.215 \| good
2025-10-25T10:00:00.000Z	67 \| moderate	17.988 \| fine	79.401 \| fine	1.66 \| good	3.062 \| good	17.647 \| good	0.21 \| good
2025-10-25T11:00:00.000Z	64 \| moderate	15.735 \| fine	69.939 \| fine	1.113 \| good	3.043 \| good	16.881 \| good	0.206 \| good
2025-10-25T12:00:00.000Z	58 \| moderate	12.595 \| fine	56.402 \| fine	3.04 \| good	3.024 \| good	16.115 \| good	0.201 \| good
2025-10-25T13:00:00.000Z	52 \| moderate	10.48 \| good	46.415 \| good	11.639 \| good	3.087 \| good	14.477 \| good	0.202 \| good
2025-10-25T14:00:00.000Z	38 \| good	7.207 \| good	31.66 \| good	17.048 \| good	3.151 \| good	12.839 \| good	0.203 \| good
2025-10-25T15:00:00.000Z	33 \| good	6.283 \| good	27.706 \| good	19.604 \| good	3.214 \| good	11.201 \| good	0.204 \| good
2025-10-25T16:00:00.000Z	33 \| good	6.43 \| good	28.234 \| good	23.103 \| good	3.198 \| good	9.451 \| good	0.189 \| good
2025-10-25T17:00:00.000Z	52 \| moderate	9.728 \| good	43.147 \| good	22.237 \| good	3.183 \| good	7.701 \| good	0.174 \| good
2025-10-25T18:00:00.000Z	58 \| moderate	12.726 \| fine	57.328 \| fine	21.68 \| good	3.167 \| good	5.951 \| good	0.159 \| good
2025-10-25T19:00:00.000Z	60 \| moderate	13.755 \| fine	62.367 \| fine	21.197 \| good	3 \| good	6.152 \| good	0.157 \| good
2025-10-25T20:00:00.000Z	60 \| moderate	14.069 \| fine	62.99 \| fine	22.514 \| good	2.832 \| good	6.352 \| good	0.155 \| good
2025-10-25T21:00:00.000Z	60 \| moderate	13.682 \| fine	61.252 \| fine	23.184 \| good	2.665 \| good	6.553 \| good	0.153 \| good
2025-10-25T22:00:00.000Z	62 \| moderate	14.52 \| fine	65.205 \| fine	21.828 \| good	2.604 \| good	8.6 \| good	0.169 \| good
2025-10-25T23:00:00.000Z	64 \| moderate	15.835 \| fine	70.66 \| fine	19.333 \| good	2.544 \| good	10.648 \| good	0.186 \| good
2025-10-26T00:00:00.000Z	62 \| moderate	14.693 \| fine	65.682 \| fine	17.942 \| good	2.483 \| good	12.695 \| good	0.202 \| good
2025-10-26T01:00:00.000Z	58 \| moderate	12.948 \| fine	58.419 \| fine	17.852 \| good	2.456 \| good	12.993 \| good	0.204 \| good
2025-10-26T02:00:00.000Z	56 \| moderate	12.375 \| fine	55.094 \| fine	20.369 \| good	2.428 \| good	13.291 \| good	0.207 \| good
2025-10-26T03:00:00.000Z	60 \| moderate	13.944 \| fine	62.263 \| fine	17.923 \| good	2.4 \| good	13.589 \| good	0.209 \| good
2025-10-26T04:00:00.000Z	54 \| moderate	10.85 \| good	47.915 \| good	21.184 \| good	2.362 \| good	13.403 \| good	0.208 \| good
2025-10-26T05:00:00.000Z	38 \| good	7.35 \| good	32.362 \| good	21.806 \| good	2.324 \| good	13.217 \| good	0.206 \| good
2025-10-26T06:00:00.000Z	62 \| moderate	15.352 \| fine	15.535 \| good	17.363 \| good	2.263 \| good	12.944 \| good	0.203 \| good

Belvidere

Get reliable air quality data to drive your business

Belvidere, Illinois air quality map: Stay updated on AQI near you

0.24ppm

How accurate is Illinois, USA air quality data?

Air quality and pollutant data for Illinois, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.

Source: Ambee Data Sources

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Frequently asked questions

How often is air quality information updated for Belvidere, Illinois?

The air quality information for Belvidere, Illinois is updated every hour for accuracy.

What time in the last 24 hours was the air quality in Belvidere, Illinois at its worst?

In the past 24 hours, the air quality in Belvidere, Illinois was at its worst at 12:00:00 on 2025-10-24.

When did Belvidere, Illinois experience the best air quality in the last 24 hours?

In the last 24 hours, the best air quality in Belvidere, Illinois was observed at 03:00:00 on 2025-10-24.

What is the AQI in Belvidere, Illinois right now?

As of now, the AQI in Belvidere, Illinois is 16, indicating Good conditions.

What is the most common type of pollution in Belvidere, Illinois?

Belvidere, Illinois air has the highest levels of PM2.5.

What should I do in case of poor air quality in Belvidere, Illinois?

Poor air quality in Belvidere, Illinois means it's advisable to stay indoors and wear a mask for your protection.

What is the PM_2.5 level in Belvidere, Illinois at the moment?

PM_2.5 levels in Belvidere, Illinois are currently 3.334 μg/m³.

What is the PM₁₀ level in Belvidere, Illinois at the moment?

The PM₁₀ concentration in Belvidere, Illinois is 9.551 μg/m³ at the moment.

What is the carbon monoxide (CO) level in Belvidere, Illinois at the moment?

The current carbon monoxide (CO) concentration in Belvidere, Illinois is 0.248 ppm.

What is the sulfur dioxide (SO₂) level in Belvidere, Illinois at the moment?

Currently, Belvidere, Illinois has a sulfur dioxide (SO₂) concentration of 1.026 ppb.

What is the ozone (O₃) level in Belvidere, Illinois at the moment?

The current ozone (O₃) level in Belvidere, Illinois at the moment is 6.881 ppm.

What is the nitrogen dioxide (NO₂) level in Belvidere, Illinois at the moment?

Nitrogen dioxide (NO₂) level in Belvidere, Illinois at the moment is 8.309 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-10-22T08:00:00.000Z	22 \| good	1.791 \| good	6.355 \| good	23.503 \| good	0.779 \| good	1.853 \| good	0.145 \| good
2025-10-22T09:00:00.000Z	21 \| good	1.79 \| good	5.212 \| good	23.224 \| good	0.686 \| good	1.886 \| good	0.1 \| good
2025-10-22T10:00:00.000Z	19 \| good	1.499 \| good	3.921 \| good	20.095 \| good	0.643 \| good	1.948 \| good	0.133 \| good
2025-10-22T11:00:00.000Z	19 \| good	1.597 \| good	6.441 \| good	21.203 \| good	0.686 \| good	2.644 \| good	0.149 \| good
2025-10-22T12:00:00.000Z	19 \| good	1.852 \| good	7.486 \| good	20.005 \| good	0.734 \| good	3.546 \| good	0.149 \| good
2025-10-22T13:00:00.000Z	19 \| good	1.853 \| good	7.736 \| good	19.837 \| good	0.734 \| good	3.729 \| good	0.205 \| good
2025-10-22T14:00:00.000Z	19 \| good	1.795 \| good	7.541 \| good	20.94 \| good	0.647 \| good	4.499 \| good	0.201 \| good
2025-10-22T15:00:00.000Z	19 \| good	1.614 \| good	5.313 \| good	19.718 \| good	0.711 \| good	3.678 \| good	0.194 \| good
2025-10-22T16:00:00.000Z	16 \| good	1.861 \| good	6.686 \| good	17.223 \| good	0.728 \| good	3.872 \| good	0.194 \| good
2025-10-22T17:00:00.000Z	17 \| good	1.892 \| good	6.822 \| good	18.211 \| good	0.71 \| good	3.244 \| good	0.194 \| good
2025-10-22T18:00:00.000Z	18 \| good	2.041 \| good	7.846 \| good	18.75 \| good	0.482 \| good	2.887 \| good	0.149 \| good
2025-10-22T19:00:00.000Z	18 \| good	1.902 \| good	6.419 \| good	18.555 \| good	0.436 \| good	2.903 \| good	0.194 \| good
2025-10-22T20:00:00.000Z	18 \| good	1.805 \| good	6.211 \| good	18.835 \| good	0.506 \| good	2.971 \| good	0.186 \| good
2025-10-22T21:00:00.000Z	16 \| good	2.08 \| good	10.649 \| good	17.428 \| good	0.452 \| good	3.121 \| good	0.252 \| good
2025-10-22T22:00:00.000Z	19 \| good	2.042 \| good	8.828 \| good	19.99 \| good	0.527 \| good	3.209 \| good	0.241 \| good
2025-10-22T23:00:00.000Z	22 \| good	2.04 \| good	8.969 \| good	24.391 \| good	0.702 \| good	3.522 \| good	0.241 \| good
2025-10-23T00:00:00.000Z	17 \| good	1.764 \| good	7.277 \| good	17.661 \| good	0.477 \| good	4.849 \| good	0.189 \| good
2025-10-23T01:00:00.000Z	16 \| good	1.689 \| good	7.142 \| good	17.02 \| good	0.472 \| good	5.343 \| good	0.16 \| good
2025-10-23T02:00:00.000Z	16 \| good	1.605 \| good	6.414 \| good	16.949 \| good	0.659 \| good	5.022 \| good	0.216 \| good
2025-10-23T03:00:00.000Z	14 \| good	1.79 \| good	6.2 \| good	14.979 \| good	0.476 \| good	4.699 \| good	0.216 \| good
2025-10-23T04:00:00.000Z	16 \| good	1.79 \| good	5.822 \| good	17.143 \| good	0.633 \| good	5.21 \| good	0.216 \| good
2025-10-23T05:00:00.000Z	14 \| good	1.841 \| good	6.931 \| good	15.118 \| good	0.7 \| good	5.123 \| good	0.259 \| good
2025-10-23T06:00:00.000Z	14 \| good	1.914 \| good	7.447 \| good	15.141 \| good	0.514 \| good	5.854 \| good	0.236 \| good
2025-10-23T07:00:00.000Z	13 \| good	2.061 \| good	6.078 \| good	13.599 \| good	0.548 \| good	6.34 \| good	0.224 \| good
2025-10-23T08:00:00.000Z	13 \| good	2.053 \| good	5.817 \| good	13.873 \| good	0.627 \| good	5.939 \| good	0.212 \| good
2025-10-23T09:00:00.000Z	11 \| good	2.115 \| good	7.434 \| good	10.421 \| good	0.517 \| good	5.427 \| good	0.188 \| good
2025-10-23T10:00:00.000Z	16 \| good	2.532 \| good	10.492 \| good	8.632 \| good	0.736 \| good	6.129 \| good	0.201 \| good
2025-10-23T11:00:00.000Z	16 \| good	2.807 \| good	10.016 \| good	10.053 \| good	0.82 \| good	5.814 \| good	0.252 \| good
2025-10-23T12:00:00.000Z	16 \| good	2.902 \| good	11.311 \| good	10.174 \| good	0.616 \| good	6.602 \| good	0.277 \| good
2025-10-23T13:00:00.000Z	16 \| good	3.366 \| good	13.959 \| good	11.037 \| good	0.687 \| good	7.095 \| good	0.288 \| good
2025-10-23T14:00:00.000Z	22 \| good	4.168 \| good	18.001 \| good	13.676 \| good	0.624 \| good	6.91 \| good	0.351 \| good
2025-10-23T15:00:00.000Z	22 \| good	3.95 \| good	16.322 \| good	11.343 \| good	0.923 \| good	5.58 \| good	0.208 \| good
2025-10-23T16:00:00.000Z	16 \| good	3.327 \| good	12.297 \| good	13.974 \| good	1.506 \| good	4.21 \| good	0.241 \| good
2025-10-23T17:00:00.000Z	16 \| good	3.327 \| good	8.817 \| good	15.229 \| good	1.126 \| good	3.936 \| good	0.23 \| good
2025-10-23T18:00:00.000Z	18 \| good	2.952 \| good	13.752 \| good	18.661 \| good	1.004 \| good	4.285 \| good	0.149 \| good
2025-10-23T19:00:00.000Z	19 \| good	2.448 \| good	6.508 \| good	21.305 \| good	1.072 \| good	4.309 \| good	0.186 \| good
2025-10-23T20:00:00.000Z	21 \| good	1.958 \| good	6.313 \| good	22.545 \| good	1.063 \| good	5.377 \| good	0.278 \| good
2025-10-23T21:00:00.000Z	22 \| good	1.884 \| good	6.091 \| good	24.3 \| good	1.062 \| good	4.533 \| good	0.22 \| good
2025-10-23T22:00:00.000Z	22 \| good	1.727 \| good	4.907 \| good	24.002 \| good	1.033 \| good	4.913 \| good	0.277 \| good
2025-10-23T23:00:00.000Z	22 \| good	1.856 \| good	6.248 \| good	23.571 \| good	0.97 \| good	5.131 \| good	0.222 \| good
2025-10-24T00:00:00.000Z	22 \| good	2.182 \| good	5.608 \| good	23.872 \| good	1.069 \| good	6.239 \| good	0.274 \| good
2025-10-24T01:00:00.000Z	19 \| good	3.088 \| good	11.118 \| good	20.263 \| good	1.755 \| good	10.432 \| good	0.285 \| good
2025-10-24T02:00:00.000Z	17 \| good	3.18 \| good	13.456 \| good	18.382 \| good	1.247 \| good	10.078 \| good	0.31 \| good
2025-10-24T03:00:00.000Z	11 \| good	1.827 \| good	7.571 \| good	9.967 \| good	0.368 \| good	6.438 \| good	0.16 \| good
2025-10-24T04:00:00.000Z	16 \| good	3.227 \| good	12.735 \| good	11.362 \| good	1.15 \| good	10.32 \| good	0.226 \| good
2025-10-24T05:00:00.000Z	16 \| good	3.334 \| good	9.551 \| good	6.881 \| good	1.026 \| good	8.309 \| good	0.248 \| good
2025-10-24T06:00:00.000Z	22 \| good	3.726 \| good	12.32 \| good	9.484 \| good	1.041 \| good	8.961 \| good	0.259 \| good
2025-10-24T07:00:00.000Z	22 \| good	4.186 \| good	13.482 \| good	8.788 \| good	1.157 \| good	8.624 \| good	0.27 \| good
2025-10-24T07:00:00.000Z	22 \| good	4.186 \| good	13.482 \| good	8.788 \| good	1.157 \| good	8.624 \| good	0.27 \| good
2025-10-24T07:00:00.000Z	9 \| good	0.902 \| good	3.464 \| good	10.447 \| good	0.349 \| good	6.17 \| good	0.154 \| good
2025-10-24T08:00:00.000Z	9 \| good	0.91 \| good	3.464 \| good	10.49 \| good	0.362 \| good	6.032 \| good	0.151 \| good
2025-10-24T09:00:00.000Z	7 \| good	1.02 \| good	4.17 \| good	7.925 \| good	0.374 \| good	5.895 \| good	0.149 \| good
2025-10-24T10:00:00.000Z	11 \| good	1.519 \| good	5.983 \| good	6.561 \| good	0.412 \| good	6.568 \| good	0.153 \| good
2025-10-24T11:00:00.000Z	11 \| good	2.103 \| good	8.566 \| good	6.62 \| good	0.45 \| good	7.241 \| good	0.156 \| good
2025-10-24T12:00:00.000Z	11 \| good	2.271 \| good	9.095 \| good	6.365 \| good	0.488 \| good	7.915 \| good	0.16 \| good
2025-10-24T13:00:00.000Z	16 \| good	2.673 \| good	11.216 \| good	8.333 \| good	0.554 \| good	6.724 \| good	0.162 \| good
2025-10-24T14:00:00.000Z	16 \| good	1.054 \| good	4.199 \| good	17.006 \| good	0.62 \| good	5.533 \| good	0.164 \| good
2025-10-24T15:00:00.000Z	19 \| good	1.09 \| good	4.221 \| good	20.926 \| good	0.686 \| good	4.343 \| good	0.166 \| good
2025-10-24T16:00:00.000Z	22 \| good	1.669 \| good	6.862 \| good	24.17 \| good	0.594 \| good	3.287 \| good	0.15 \| good
2025-10-24T17:00:00.000Z	23 \| good	2.357 \| good	9.484 \| good	25.311 \| good	0.503 \| good	2.23 \| good	0.135 \| good
2025-10-24T18:00:00.000Z	26 \| good	3.579 \| good	15.65 \| good	27.734 \| good	0.411 \| good	1.174 \| good	0.119 \| good
2025-10-24T19:00:00.000Z	28 \| good	3.309 \| good	14.325 \| good	29.983 \| good	0.417 \| good	1.245 \| good	0.119 \| good
2025-10-24T20:00:00.000Z	28 \| good	3.935 \| good	17.181 \| good	29.584 \| good	0.423 \| good	1.317 \| good	0.12 \| good
2025-10-24T21:00:00.000Z	30 \| good	4.969 \| good	21.304 \| good	31.976 \| good	0.429 \| good	1.388 \| good	0.12 \| good
2025-10-24T22:00:00.000Z	38 \| good	7.042 \| good	30.998 \| good	30.05 \| good	0.522 \| good	6.725 \| good	0.165 \| good
2025-10-24T23:00:00.000Z	38 \| good	7.288 \| good	32.127 \| good	24.756 \| good	0.616 \| good	12.062 \| good	0.21 \| good
2025-10-25T00:00:00.000Z	44 \| good	8.358 \| good	36.937 \| good	20.397 \| good	0.709 \| good	17.399 \| good	0.255 \| good
2025-10-25T01:00:00.000Z	33 \| good	6.116 \| good	27.159 \| good	18.267 \| good	0.88 \| good	18.438 \| good	0.264 \| good
2025-10-25T02:00:00.000Z	44 \| good	8.104 \| good	35.598 \| good	18.31 \| good	1.05 \| good	19.477 \| good	0.272 \| good
2025-10-25T03:00:00.000Z	56 \| moderate	11.869 \| good	53.113 \| good	11.284 \| good	1.22 \| good	20.515 \| good	0.281 \| good
2025-10-25T04:00:00.000Z	60 \| moderate	13.732 \| fine	61.998 \| fine	1.472 \| good	1.573 \| good	19.9 \| good	0.267 \| good
2025-10-25T05:00:00.000Z	67 \| moderate	18.283 \| fine	81.122 \| fine	1.053 \| good	1.926 \| good	19.284 \| good	0.252 \| good
2025-10-25T06:00:00.000Z	71 \| moderate	20.395 \| fine	89.901 \| fine	1.893 \| good	2.279 \| good	18.669 \| good	0.238 \| good
2025-10-25T07:00:00.000Z	77 \| moderate	23.188 \| fine	102.117 \| fine	2.599 \| good	2.546 \| good	18.583 \| good	0.231 \| good
2025-10-25T08:00:00.000Z	77 \| moderate	22.84 \| fine	100.145 \| fine	3.15 \| good	2.813 \| good	18.498 \| good	0.223 \| good
2025-10-25T09:00:00.000Z	75 \| moderate	21.504 \| fine	94.305 \| fine	2.541 \| good	3.081 \| good	18.413 \| good	0.215 \| good
2025-10-25T10:00:00.000Z	67 \| moderate	17.988 \| fine	79.401 \| fine	1.66 \| good	3.062 \| good	17.647 \| good	0.21 \| good
2025-10-25T11:00:00.000Z	64 \| moderate	15.735 \| fine	69.939 \| fine	1.113 \| good	3.043 \| good	16.881 \| good	0.206 \| good
2025-10-25T12:00:00.000Z	58 \| moderate	12.595 \| fine	56.402 \| fine	3.04 \| good	3.024 \| good	16.115 \| good	0.201 \| good
2025-10-25T13:00:00.000Z	52 \| moderate	10.48 \| good	46.415 \| good	11.639 \| good	3.087 \| good	14.477 \| good	0.202 \| good
2025-10-25T14:00:00.000Z	38 \| good	7.207 \| good	31.66 \| good	17.048 \| good	3.151 \| good	12.839 \| good	0.203 \| good
2025-10-25T15:00:00.000Z	33 \| good	6.283 \| good	27.706 \| good	19.604 \| good	3.214 \| good	11.201 \| good	0.204 \| good
2025-10-25T16:00:00.000Z	33 \| good	6.43 \| good	28.234 \| good	23.103 \| good	3.198 \| good	9.451 \| good	0.189 \| good
2025-10-25T17:00:00.000Z	52 \| moderate	9.728 \| good	43.147 \| good	22.237 \| good	3.183 \| good	7.701 \| good	0.174 \| good
2025-10-25T18:00:00.000Z	58 \| moderate	12.726 \| fine	57.328 \| fine	21.68 \| good	3.167 \| good	5.951 \| good	0.159 \| good
2025-10-25T19:00:00.000Z	60 \| moderate	13.755 \| fine	62.367 \| fine	21.197 \| good	3 \| good	6.152 \| good	0.157 \| good
2025-10-25T20:00:00.000Z	60 \| moderate	14.069 \| fine	62.99 \| fine	22.514 \| good	2.832 \| good	6.352 \| good	0.155 \| good
2025-10-25T21:00:00.000Z	60 \| moderate	13.682 \| fine	61.252 \| fine	23.184 \| good	2.665 \| good	6.553 \| good	0.153 \| good
2025-10-25T22:00:00.000Z	62 \| moderate	14.52 \| fine	65.205 \| fine	21.828 \| good	2.604 \| good	8.6 \| good	0.169 \| good
2025-10-25T23:00:00.000Z	64 \| moderate	15.835 \| fine	70.66 \| fine	19.333 \| good	2.544 \| good	10.648 \| good	0.186 \| good
2025-10-26T00:00:00.000Z	62 \| moderate	14.693 \| fine	65.682 \| fine	17.942 \| good	2.483 \| good	12.695 \| good	0.202 \| good
2025-10-26T01:00:00.000Z	58 \| moderate	12.948 \| fine	58.419 \| fine	17.852 \| good	2.456 \| good	12.993 \| good	0.204 \| good
2025-10-26T02:00:00.000Z	56 \| moderate	12.375 \| fine	55.094 \| fine	20.369 \| good	2.428 \| good	13.291 \| good	0.207 \| good
2025-10-26T03:00:00.000Z	60 \| moderate	13.944 \| fine	62.263 \| fine	17.923 \| good	2.4 \| good	13.589 \| good	0.209 \| good
2025-10-26T04:00:00.000Z	54 \| moderate	10.85 \| good	47.915 \| good	21.184 \| good	2.362 \| good	13.403 \| good	0.208 \| good
2025-10-26T05:00:00.000Z	38 \| good	7.35 \| good	32.362 \| good	21.806 \| good	2.324 \| good	13.217 \| good	0.206 \| good
2025-10-26T06:00:00.000Z	62 \| moderate	15.352 \| fine	15.535 \| good	17.363 \| good	2.263 \| good	12.944 \| good	0.203 \| good

Live air quality index in Belvidere, Illinois today

Major air pollutants in Belvidere, Illinois

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Belvidere, Illinois air quality map: Stay updated on AQI near you

Air quality in nearby cities

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Frequently asked questions

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What is the sulfur dioxide (SO2) level in Belvidere, Illinois at the moment?

What is the ozone (O3) level in Belvidere, Illinois at the moment?

What is the nitrogen dioxide (NO2) level in Belvidere, Illinois at the moment?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the PM_2.5 level in Belvidere, Illinois at the moment?

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What is the sulfur dioxide (SO₂) level in Belvidere, Illinois at the moment?

What is the ozone (O₃) level in Belvidere, Illinois at the moment?

What is the nitrogen dioxide (NO₂) level in Belvidere, Illinois at the moment?