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

The PM10 concentration in Dekalb, Illinois is 13.051 μg/m3 at the moment.

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

Currently, Dekalb, Illinois has a sulfur dioxide (SO2) concentration of 0.483 ppb.

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

The current ozone (O3) level in Dekalb, Illinois at the moment is 25.316 ppm.

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

Nitrogen dioxide (NO2) level in Dekalb, Illinois at the moment is 6.39 ppb.

Live air quality index in DeKalb, Illinois today

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

PM2.5 levels in Dekalb, Illinois are currently 3.739 μg/m3.

Stay updated with real-time air quality in DeKalb, 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

DeKalb, Illinois

Last updated: ... (Local time)

Major air pollutants in DeKalb, Illinois

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

3.74 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

13.05 μg/m³

155

255

425

605+

Ozone (O₃)

25.32 ppb

201

201+

Sulfur Dioxide (SO₂)

0.48 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

6.39 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.21 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

DeKalb, Illinois

Get Live Pollen Counts

DeKalb, Illinois

Scroll To Air Quality Map

Track live DeKalb, Illinois air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-09T05:00:00.000Z	33 \| good	5.724 \| good	26.269 \| good	17.823 \| good	0.595 \| good	12.758 \| good	0.185 \| good
2025-12-09T06:00:00.000Z	33 \| good	5.943 \| good	22.502 \| good	19.245 \| good	0.531 \| good	7.097 \| good	0.166 \| good
2025-12-09T07:00:00.000Z	33 \| good	6.003 \| good	17.38 \| good	21.166 \| good	0.586 \| good	10.335 \| good	0.166 \| good
2025-12-09T08:00:00.000Z	38 \| good	6.663 \| good	32.375 \| good	23.818 \| good	0.529 \| good	7.014 \| good	0.158 \| good
2025-12-09T09:00:00.000Z	49 \| good	8.693 \| good	32.691 \| good	21.733 \| good	0.579 \| good	7.088 \| good	0.147 \| good
2025-12-09T10:00:00.000Z	52 \| moderate	9.932 \| good	42.668 \| good	20.682 \| good	0.61 \| good	7.443 \| good	0.158 \| good
2025-12-09T11:00:00.000Z	54 \| moderate	11.307 \| good	38.172 \| good	20.43 \| good	0.546 \| good	7.03 \| good	0.158 \| good
2025-12-09T12:00:00.000Z	56 \| moderate	12.303 \| fine	43.813 \| good	20.35 \| good	0.567 \| good	7.055 \| good	0.185 \| good
2025-12-09T13:00:00.000Z	58 \| moderate	12.617 \| fine	46.383 \| good	20.361 \| good	0.588 \| good	7.018 \| good	0.185 \| good
2025-12-09T14:00:00.000Z	60 \| moderate	13.54 \| fine	48.551 \| good	18.753 \| good	0.607 \| good	10.251 \| good	0.237 \| good
2025-12-09T15:00:00.000Z	56 \| moderate	12.35 \| fine	42.041 \| good	19.516 \| good	0.604 \| good	10.201 \| good	0.185 \| good
2025-12-09T16:00:00.000Z	52 \| moderate	10.496 \| good	41.882 \| good	20.361 \| good	0.802 \| good	8.976 \| good	0.185 \| good
2025-12-09T17:00:00.000Z	56 \| moderate	11.765 \| good	46.122 \| good	19.494 \| good	0.705 \| good	7.791 \| good	0.185 \| good
2025-12-09T18:00:00.000Z	56 \| moderate	12.497 \| fine	53.67 \| good	21.751 \| good	0.664 \| good	7.155 \| good	0.185 \| good
2025-12-09T19:00:00.000Z	58 \| moderate	12.743 \| fine	56.914 \| fine	20.637 \| good	0.624 \| good	7.39 \| good	0.185 \| good
2025-12-09T20:00:00.000Z	58 \| moderate	13.143 \| fine	44.068 \| good	22.367 \| good	0.623 \| good	7.554 \| good	0.185 \| good
2025-12-09T21:00:00.000Z	58 \| moderate	13.081 \| fine	62.822 \| fine	20.828 \| good	0.644 \| good	9.378 \| good	0.213 \| good
2025-12-09T22:00:00.000Z	58 \| moderate	13.285 \| fine	48.069 \| good	20.312 \| good	0.541 \| good	10.21 \| good	0.213 \| good
2025-12-09T23:00:00.000Z	58 \| moderate	12.815 \| fine	45.631 \| good	22.255 \| good	0.522 \| good	10.733 \| good	0.213 \| good
2025-12-10T00:00:00.000Z	58 \| moderate	13.409 \| fine	60.235 \| fine	20.579 \| good	0.523 \| good	11.177 \| good	0.185 \| good
2025-12-10T01:00:00.000Z	56 \| moderate	12.244 \| fine	55.279 \| fine	20.399 \| good	0.506 \| good	9.31 \| good	0.196 \| good
2025-12-10T02:00:00.000Z	60 \| moderate	14.461 \| fine	57.699 \| fine	19.578 \| good	0.55 \| good	9.434 \| good	0.208 \| good
2025-12-10T03:00:00.000Z	49 \| good	8.677 \| good	38 \| good	27.173 \| good	0.487 \| good	5.471 \| good	0.209 \| good
2025-12-10T04:00:00.000Z	60 \| moderate	14.314 \| fine	66.387 \| fine	20.523 \| good	0.718 \| good	6.534 \| good	0.196 \| good
2025-12-10T05:00:00.000Z	58 \| moderate	12.565 \| fine	60.471 \| fine	19.273 \| good	0.757 \| good	6.847 \| good	0.196 \| good
2025-12-10T06:00:00.000Z	60 \| moderate	13.739 \| fine	63.071 \| fine	16.978 \| good	0.658 \| good	4.171 \| good	0.196 \| good
2025-12-10T07:00:00.000Z	56 \| moderate	11.532 \| good	41.251 \| good	17.741 \| good	0.702 \| good	4.828 \| good	0.166 \| good
2025-12-10T08:00:00.000Z	49 \| good	9.162 \| good	33.832 \| good	19.415 \| good	0.761 \| good	3.307 \| good	0.139 \| good
2025-12-10T09:00:00.000Z	38 \| good	6.929 \| good	32.056 \| good	21.254 \| good	0.603 \| good	6.018 \| good	0.139 \| good
2025-12-10T10:00:00.000Z	33 \| good	6.056 \| good	26.892 \| good	19.807 \| good	0.473 \| good	5.453 \| good	0.15 \| good
2025-12-10T11:00:00.000Z	44 \| good	7.673 \| good	31.439 \| good	21.981 \| good	0.55 \| good	4.681 \| good	0.172 \| good
2025-12-10T12:00:00.000Z	22 \| good	4.406 \| good	18.115 \| good	22.346 \| good	0.587 \| good	4.691 \| good	0.188 \| good
2025-12-10T13:00:00.000Z	33 \| good	5.845 \| good	24.756 \| good	22.784 \| good	0.529 \| good	5.133 \| good	0.199 \| good
2025-12-10T14:00:00.000Z	38 \| good	6.534 \| good	20.221 \| good	19.943 \| good	0.502 \| good	6.824 \| good	0.196 \| good
2025-12-10T15:00:00.000Z	38 \| good	6.874 \| good	21.953 \| good	20.1 \| good	0.482 \| good	6.12 \| good	0.185 \| good
2025-12-10T16:00:00.000Z	33 \| good	5.964 \| good	22.389 \| good	21.525 \| good	0.56 \| good	5.818 \| good	0.185 \| good
2025-12-10T17:00:00.000Z	33 \| good	6.34 \| good	27.059 \| good	21.676 \| good	0.514 \| good	5.802 \| good	0.185 \| good
2025-12-10T18:00:00.000Z	49 \| good	8.746 \| good	39.091 \| good	21.482 \| good	0.471 \| good	4.712 \| good	0.139 \| good
2025-12-10T19:00:00.000Z	33 \| good	6.186 \| good	23.896 \| good	23.465 \| good	0.493 \| good	4.869 \| good	0.139 \| good
2025-12-10T20:00:00.000Z	22 \| good	4.496 \| good	20.956 \| good	23.703 \| good	0.455 \| good	4.747 \| good	0.166 \| good
2025-12-10T21:00:00.000Z	22 \| good	4.473 \| good	20.598 \| good	23.037 \| good	0.458 \| good	4.931 \| good	0.185 \| good
2025-12-10T22:00:00.000Z	22 \| good	3.684 \| good	15.032 \| good	23.687 \| good	0.418 \| good	5.875 \| good	0.21 \| good
2025-12-10T23:00:00.000Z	23 \| good	3.131 \| good	12.853 \| good	25.039 \| good	0.459 \| good	5.174 \| good	0.21 \| good
2025-12-11T00:00:00.000Z	22 \| good	3.277 \| good	16.11 \| good	24.386 \| good	0.439 \| good	5.986 \| good	0.21 \| good
2025-12-11T01:00:00.000Z	24 \| good	3.775 \| good	10.556 \| good	25.571 \| good	0.534 \| good	6.949 \| good	0.185 \| good
2025-12-11T02:00:00.000Z	23 \| good	3.712 \| good	11.366 \| good	25.387 \| good	0.556 \| good	7.084 \| good	0.185 \| good
2025-12-11T03:00:00.000Z	23 \| good	3.739 \| good	13.051 \| good	25.316 \| good	0.483 \| good	6.39 \| good	0.21 \| good
2025-12-11T04:00:00.000Z	23 \| good	3.449 \| good	16.956 \| good	24.582 \| good	0.506 \| good	5.791 \| good	0.158 \| good
2025-12-11T04:00:00.000Z	23 \| good	3.739 \| good	13.051 \| good	25.316 \| good	0.483 \| good	6.39 \| good	0.21 \| good
2025-12-11T05:00:00.000Z	33 \| good	5.563 \| good	23.994 \| good	15.248 \| good	0.215 \| good	2.775 \| good	0.163 \| good
2025-12-11T06:00:00.000Z	33 \| good	5.793 \| good	25.508 \| good	14.5 \| good	0.217 \| good	2.685 \| good	0.165 \| good
2025-12-11T07:00:00.000Z	33 \| good	6.37 \| good	28.283 \| good	14.468 \| good	0.213 \| good	2.549 \| good	0.165 \| good
2025-12-11T08:00:00.000Z	38 \| good	6.644 \| good	29.808 \| good	14.49 \| good	0.209 \| good	2.412 \| good	0.165 \| good
2025-12-11T09:00:00.000Z	38 \| good	6.748 \| good	29.974 \| good	14.666 \| good	0.205 \| good	2.276 \| good	0.166 \| good
2025-12-11T10:00:00.000Z	38 \| good	6.99 \| good	31.174 \| good	12.874 \| good	0.214 \| good	2.286 \| good	0.163 \| good
2025-12-11T11:00:00.000Z	38 \| good	6.744 \| good	29.974 \| good	12.017 \| good	0.223 \| good	2.296 \| good	0.16 \| good
2025-12-11T12:00:00.000Z	38 \| good	7.101 \| good	31.711 \| good	11.458 \| good	0.233 \| good	2.306 \| good	0.158 \| good
2025-12-11T13:00:00.000Z	38 \| good	6.823 \| good	30 \| good	11.098 \| good	0.271 \| good	3.154 \| good	0.173 \| good
2025-12-11T14:00:00.000Z	33 \| good	5.988 \| good	27 \| good	13.287 \| good	0.31 \| good	4.001 \| good	0.188 \| good
2025-12-11T15:00:00.000Z	33 \| good	5.992 \| good	26.743 \| good	17.276 \| good	0.349 \| good	4.848 \| good	0.203 \| good
2025-12-11T16:00:00.000Z	33 \| good	5.964 \| good	26.768 \| good	21.234 \| good	0.348 \| good	3.92 \| good	0.192 \| good
2025-12-11T17:00:00.000Z	33 \| good	5.696 \| good	24.363 \| good	24.665 \| good	0.348 \| good	2.992 \| good	0.182 \| good
2025-12-11T18:00:00.000Z	33 \| good	5.623 \| good	24.097 \| good	26.238 \| good	0.348 \| good	2.065 \| good	0.171 \| good
2025-12-11T19:00:00.000Z	33 \| good	5.824 \| good	25.194 \| good	27.442 \| good	0.36 \| good	2.495 \| good	0.171 \| good
2025-12-11T20:00:00.000Z	33 \| good	5.723 \| good	24.736 \| good	28.078 \| good	0.371 \| good	2.925 \| good	0.171 \| good
2025-12-11T21:00:00.000Z	33 \| good	5.958 \| good	26.549 \| good	27.747 \| good	0.383 \| good	3.356 \| good	0.171 \| good
2025-12-11T22:00:00.000Z	33 \| good	6.483 \| good	28.642 \| good	26.252 \| good	0.544 \| good	8.088 \| good	0.214 \| good
2025-12-11T23:00:00.000Z	38 \| good	6.536 \| good	29.153 \| good	24.899 \| good	0.705 \| good	12.819 \| good	0.257 \| good
2025-12-12T00:00:00.000Z	33 \| good	6.393 \| good	28.385 \| good	23.46 \| good	0.865 \| good	17.551 \| good	0.3 \| good
2025-12-12T01:00:00.000Z	38 \| good	7.029 \| good	31.195 \| good	22.5 \| good	0.985 \| good	20.56 \| good	0.324 \| good
2025-12-12T02:00:00.000Z	38 \| good	7.287 \| good	32.167 \| good	21.219 \| good	1.105 \| good	23.569 \| good	0.348 \| good
2025-12-12T03:00:00.000Z	44 \| good	7.576 \| good	33.301 \| good	19.56 \| good	1.225 \| good	26.578 \| good	0.373 \| good
2025-12-12T04:00:00.000Z	44 \| good	7.888 \| good	34.514 \| good	19.181 \| good	1.262 \| good	26.228 \| good	0.362 \| good
2025-12-12T05:00:00.000Z	38 \| good	7.497 \| good	32.669 \| good	17.887 \| good	1.299 \| good	25.878 \| good	0.351 \| good
2025-12-12T06:00:00.000Z	44 \| good	7.573 \| good	33.565 \| good	16.974 \| good	1.335 \| good	25.528 \| good	0.341 \| good
2025-12-12T07:00:00.000Z	44 \| good	7.957 \| good	34.746 \| good	15.651 \| good	1.294 \| good	25.569 \| good	0.334 \| good
2025-12-12T08:00:00.000Z	44 \| good	8.178 \| good	35.681 \| good	15.067 \| good	1.252 \| good	25.611 \| good	0.326 \| good
2025-12-12T09:00:00.000Z	49 \| good	8.625 \| good	37.709 \| good	15.006 \| good	1.21 \| good	25.652 \| good	0.319 \| good
2025-12-12T10:00:00.000Z	49 \| good	9.164 \| good	41.408 \| good	13.828 \| good	1.193 \| good	25.389 \| good	0.316 \| good
2025-12-12T11:00:00.000Z	52 \| moderate	10.041 \| good	44.469 \| good	13.389 \| good	1.175 \| good	25.127 \| good	0.313 \| good
2025-12-12T12:00:00.000Z	52 \| moderate	10.034 \| good	44.487 \| good	13.679 \| good	1.158 \| good	24.864 \| good	0.309 \| good
2025-12-12T13:00:00.000Z	52 \| moderate	10.179 \| good	45.425 \| good	13.477 \| good	1.22 \| good	21.054 \| good	0.317 \| good
2025-12-12T14:00:00.000Z	54 \| moderate	10.635 \| good	47.209 \| good	15.164 \| good	1.283 \| good	17.243 \| good	0.324 \| good
2025-12-12T15:00:00.000Z	54 \| moderate	11.489 \| good	51.192 \| good	20.214 \| good	1.345 \| good	13.433 \| good	0.331 \| good
2025-12-12T16:00:00.000Z	56 \| moderate	12.198 \| fine	54.942 \| good	24.388 \| good	1.271 \| good	12.14 \| good	0.329 \| good
2025-12-12T17:00:00.000Z	56 \| moderate	12.317 \| fine	55.107 \| fine	26.72 \| good	1.197 \| good	10.847 \| good	0.327 \| good
2025-12-12T18:00:00.000Z	58 \| moderate	13.389 \| fine	60.884 \| fine	27.997 \| good	1.122 \| good	9.555 \| good	0.325 \| good
2025-12-12T19:00:00.000Z	60 \| moderate	14.265 \| fine	63.515 \| fine	28.619 \| good	1.22 \| good	9.734 \| good	0.304 \| good
2025-12-12T20:00:00.000Z	62 \| moderate	14.715 \| fine	65.145 \| fine	28.607 \| good	1.317 \| good	9.914 \| good	0.283 \| good
2025-12-12T21:00:00.000Z	60 \| moderate	13.912 \| fine	62.899 \| fine	26.749 \| good	1.415 \| good	10.093 \| good	0.261 \| good
2025-12-12T22:00:00.000Z	60 \| moderate	14.369 \| fine	64.016 \| fine	25.955 \| good	1.131 \| good	9.51 \| good	0.249 \| good
2025-12-12T23:00:00.000Z	79 \| moderate	24.064 \| fine	105.052 \| fine	23.28 \| good	0.847 \| good	8.926 \| good	0.236 \| good
2025-12-13T00:00:00.000Z	58 \| moderate	13.001 \| fine	13.033 \| good	27.818 \| good	0.553 \| good	8.229 \| good	0.223 \| good
2025-12-13T01:00:00.000Z	52 \| moderate	10.214 \| good	45.137 \| good	14.982 \| good	0.439 \| good	7.268 \| good	0.222 \| good
2025-12-13T02:00:00.000Z	44 \| good	8.246 \| good	36.458 \| good	13.097 \| good	0.315 \| good	6.193 \| good	0.221 \| good
2025-12-13T03:00:00.000Z	38 \| good	6.66 \| good	29.814 \| good	12.488 \| good	0.191 \| good	5.118 \| good	0.219 \| good
2025-12-13T04:00:00.000Z	27 \| good	5.45 \| good	23.086 \| good	12.988 \| good	0.157 \| good	4.18 \| good	0.208 \| good

DeKalb

Get reliable air quality data to drive your business

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

0.21ppm

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 Dekalb, Illinois?

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

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

In the past 24 hours, the air quality in Dekalb, Illinois was at its worst at 06:00:00 on 2025-12-10.

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

In the last 24 hours, the best air quality in Dekalb, Illinois was observed at 12:00:00 on 2025-12-11.

What is the AQI in Dekalb, Illinois right now?

As of now, the AQI in Dekalb, Illinois is 23, indicating Good conditions.

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

Dekalb, Illinois air has the highest levels of O3.

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

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

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

PM_2.5 levels in Dekalb, Illinois are currently 3.739 μg/m³.

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

The PM₁₀ concentration in Dekalb, Illinois is 13.051 μg/m³ at the moment.

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

The current carbon monoxide (CO) concentration in Dekalb, Illinois is 0.21 ppm.

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

Currently, Dekalb, Illinois has a sulfur dioxide (SO₂) concentration of 0.483 ppb.

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

The current ozone (O₃) level in Dekalb, Illinois at the moment is 25.316 ppm.

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

Nitrogen dioxide (NO₂) level in Dekalb, Illinois at the moment is 6.39 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-09T05:00:00.000Z	33 \| good	5.724 \| good	26.269 \| good	17.823 \| good	0.595 \| good	12.758 \| good	0.185 \| good
2025-12-09T06:00:00.000Z	33 \| good	5.943 \| good	22.502 \| good	19.245 \| good	0.531 \| good	7.097 \| good	0.166 \| good
2025-12-09T07:00:00.000Z	33 \| good	6.003 \| good	17.38 \| good	21.166 \| good	0.586 \| good	10.335 \| good	0.166 \| good
2025-12-09T08:00:00.000Z	38 \| good	6.663 \| good	32.375 \| good	23.818 \| good	0.529 \| good	7.014 \| good	0.158 \| good
2025-12-09T09:00:00.000Z	49 \| good	8.693 \| good	32.691 \| good	21.733 \| good	0.579 \| good	7.088 \| good	0.147 \| good
2025-12-09T10:00:00.000Z	52 \| moderate	9.932 \| good	42.668 \| good	20.682 \| good	0.61 \| good	7.443 \| good	0.158 \| good
2025-12-09T11:00:00.000Z	54 \| moderate	11.307 \| good	38.172 \| good	20.43 \| good	0.546 \| good	7.03 \| good	0.158 \| good
2025-12-09T12:00:00.000Z	56 \| moderate	12.303 \| fine	43.813 \| good	20.35 \| good	0.567 \| good	7.055 \| good	0.185 \| good
2025-12-09T13:00:00.000Z	58 \| moderate	12.617 \| fine	46.383 \| good	20.361 \| good	0.588 \| good	7.018 \| good	0.185 \| good
2025-12-09T14:00:00.000Z	60 \| moderate	13.54 \| fine	48.551 \| good	18.753 \| good	0.607 \| good	10.251 \| good	0.237 \| good
2025-12-09T15:00:00.000Z	56 \| moderate	12.35 \| fine	42.041 \| good	19.516 \| good	0.604 \| good	10.201 \| good	0.185 \| good
2025-12-09T16:00:00.000Z	52 \| moderate	10.496 \| good	41.882 \| good	20.361 \| good	0.802 \| good	8.976 \| good	0.185 \| good
2025-12-09T17:00:00.000Z	56 \| moderate	11.765 \| good	46.122 \| good	19.494 \| good	0.705 \| good	7.791 \| good	0.185 \| good
2025-12-09T18:00:00.000Z	56 \| moderate	12.497 \| fine	53.67 \| good	21.751 \| good	0.664 \| good	7.155 \| good	0.185 \| good
2025-12-09T19:00:00.000Z	58 \| moderate	12.743 \| fine	56.914 \| fine	20.637 \| good	0.624 \| good	7.39 \| good	0.185 \| good
2025-12-09T20:00:00.000Z	58 \| moderate	13.143 \| fine	44.068 \| good	22.367 \| good	0.623 \| good	7.554 \| good	0.185 \| good
2025-12-09T21:00:00.000Z	58 \| moderate	13.081 \| fine	62.822 \| fine	20.828 \| good	0.644 \| good	9.378 \| good	0.213 \| good
2025-12-09T22:00:00.000Z	58 \| moderate	13.285 \| fine	48.069 \| good	20.312 \| good	0.541 \| good	10.21 \| good	0.213 \| good
2025-12-09T23:00:00.000Z	58 \| moderate	12.815 \| fine	45.631 \| good	22.255 \| good	0.522 \| good	10.733 \| good	0.213 \| good
2025-12-10T00:00:00.000Z	58 \| moderate	13.409 \| fine	60.235 \| fine	20.579 \| good	0.523 \| good	11.177 \| good	0.185 \| good
2025-12-10T01:00:00.000Z	56 \| moderate	12.244 \| fine	55.279 \| fine	20.399 \| good	0.506 \| good	9.31 \| good	0.196 \| good
2025-12-10T02:00:00.000Z	60 \| moderate	14.461 \| fine	57.699 \| fine	19.578 \| good	0.55 \| good	9.434 \| good	0.208 \| good
2025-12-10T03:00:00.000Z	49 \| good	8.677 \| good	38 \| good	27.173 \| good	0.487 \| good	5.471 \| good	0.209 \| good
2025-12-10T04:00:00.000Z	60 \| moderate	14.314 \| fine	66.387 \| fine	20.523 \| good	0.718 \| good	6.534 \| good	0.196 \| good
2025-12-10T05:00:00.000Z	58 \| moderate	12.565 \| fine	60.471 \| fine	19.273 \| good	0.757 \| good	6.847 \| good	0.196 \| good
2025-12-10T06:00:00.000Z	60 \| moderate	13.739 \| fine	63.071 \| fine	16.978 \| good	0.658 \| good	4.171 \| good	0.196 \| good
2025-12-10T07:00:00.000Z	56 \| moderate	11.532 \| good	41.251 \| good	17.741 \| good	0.702 \| good	4.828 \| good	0.166 \| good
2025-12-10T08:00:00.000Z	49 \| good	9.162 \| good	33.832 \| good	19.415 \| good	0.761 \| good	3.307 \| good	0.139 \| good
2025-12-10T09:00:00.000Z	38 \| good	6.929 \| good	32.056 \| good	21.254 \| good	0.603 \| good	6.018 \| good	0.139 \| good
2025-12-10T10:00:00.000Z	33 \| good	6.056 \| good	26.892 \| good	19.807 \| good	0.473 \| good	5.453 \| good	0.15 \| good
2025-12-10T11:00:00.000Z	44 \| good	7.673 \| good	31.439 \| good	21.981 \| good	0.55 \| good	4.681 \| good	0.172 \| good
2025-12-10T12:00:00.000Z	22 \| good	4.406 \| good	18.115 \| good	22.346 \| good	0.587 \| good	4.691 \| good	0.188 \| good
2025-12-10T13:00:00.000Z	33 \| good	5.845 \| good	24.756 \| good	22.784 \| good	0.529 \| good	5.133 \| good	0.199 \| good
2025-12-10T14:00:00.000Z	38 \| good	6.534 \| good	20.221 \| good	19.943 \| good	0.502 \| good	6.824 \| good	0.196 \| good
2025-12-10T15:00:00.000Z	38 \| good	6.874 \| good	21.953 \| good	20.1 \| good	0.482 \| good	6.12 \| good	0.185 \| good
2025-12-10T16:00:00.000Z	33 \| good	5.964 \| good	22.389 \| good	21.525 \| good	0.56 \| good	5.818 \| good	0.185 \| good
2025-12-10T17:00:00.000Z	33 \| good	6.34 \| good	27.059 \| good	21.676 \| good	0.514 \| good	5.802 \| good	0.185 \| good
2025-12-10T18:00:00.000Z	49 \| good	8.746 \| good	39.091 \| good	21.482 \| good	0.471 \| good	4.712 \| good	0.139 \| good
2025-12-10T19:00:00.000Z	33 \| good	6.186 \| good	23.896 \| good	23.465 \| good	0.493 \| good	4.869 \| good	0.139 \| good
2025-12-10T20:00:00.000Z	22 \| good	4.496 \| good	20.956 \| good	23.703 \| good	0.455 \| good	4.747 \| good	0.166 \| good
2025-12-10T21:00:00.000Z	22 \| good	4.473 \| good	20.598 \| good	23.037 \| good	0.458 \| good	4.931 \| good	0.185 \| good
2025-12-10T22:00:00.000Z	22 \| good	3.684 \| good	15.032 \| good	23.687 \| good	0.418 \| good	5.875 \| good	0.21 \| good
2025-12-10T23:00:00.000Z	23 \| good	3.131 \| good	12.853 \| good	25.039 \| good	0.459 \| good	5.174 \| good	0.21 \| good
2025-12-11T00:00:00.000Z	22 \| good	3.277 \| good	16.11 \| good	24.386 \| good	0.439 \| good	5.986 \| good	0.21 \| good
2025-12-11T01:00:00.000Z	24 \| good	3.775 \| good	10.556 \| good	25.571 \| good	0.534 \| good	6.949 \| good	0.185 \| good
2025-12-11T02:00:00.000Z	23 \| good	3.712 \| good	11.366 \| good	25.387 \| good	0.556 \| good	7.084 \| good	0.185 \| good
2025-12-11T03:00:00.000Z	23 \| good	3.739 \| good	13.051 \| good	25.316 \| good	0.483 \| good	6.39 \| good	0.21 \| good
2025-12-11T04:00:00.000Z	23 \| good	3.449 \| good	16.956 \| good	24.582 \| good	0.506 \| good	5.791 \| good	0.158 \| good
2025-12-11T04:00:00.000Z	23 \| good	3.739 \| good	13.051 \| good	25.316 \| good	0.483 \| good	6.39 \| good	0.21 \| good
2025-12-11T05:00:00.000Z	33 \| good	5.563 \| good	23.994 \| good	15.248 \| good	0.215 \| good	2.775 \| good	0.163 \| good
2025-12-11T06:00:00.000Z	33 \| good	5.793 \| good	25.508 \| good	14.5 \| good	0.217 \| good	2.685 \| good	0.165 \| good
2025-12-11T07:00:00.000Z	33 \| good	6.37 \| good	28.283 \| good	14.468 \| good	0.213 \| good	2.549 \| good	0.165 \| good
2025-12-11T08:00:00.000Z	38 \| good	6.644 \| good	29.808 \| good	14.49 \| good	0.209 \| good	2.412 \| good	0.165 \| good
2025-12-11T09:00:00.000Z	38 \| good	6.748 \| good	29.974 \| good	14.666 \| good	0.205 \| good	2.276 \| good	0.166 \| good
2025-12-11T10:00:00.000Z	38 \| good	6.99 \| good	31.174 \| good	12.874 \| good	0.214 \| good	2.286 \| good	0.163 \| good
2025-12-11T11:00:00.000Z	38 \| good	6.744 \| good	29.974 \| good	12.017 \| good	0.223 \| good	2.296 \| good	0.16 \| good
2025-12-11T12:00:00.000Z	38 \| good	7.101 \| good	31.711 \| good	11.458 \| good	0.233 \| good	2.306 \| good	0.158 \| good
2025-12-11T13:00:00.000Z	38 \| good	6.823 \| good	30 \| good	11.098 \| good	0.271 \| good	3.154 \| good	0.173 \| good
2025-12-11T14:00:00.000Z	33 \| good	5.988 \| good	27 \| good	13.287 \| good	0.31 \| good	4.001 \| good	0.188 \| good
2025-12-11T15:00:00.000Z	33 \| good	5.992 \| good	26.743 \| good	17.276 \| good	0.349 \| good	4.848 \| good	0.203 \| good
2025-12-11T16:00:00.000Z	33 \| good	5.964 \| good	26.768 \| good	21.234 \| good	0.348 \| good	3.92 \| good	0.192 \| good
2025-12-11T17:00:00.000Z	33 \| good	5.696 \| good	24.363 \| good	24.665 \| good	0.348 \| good	2.992 \| good	0.182 \| good
2025-12-11T18:00:00.000Z	33 \| good	5.623 \| good	24.097 \| good	26.238 \| good	0.348 \| good	2.065 \| good	0.171 \| good
2025-12-11T19:00:00.000Z	33 \| good	5.824 \| good	25.194 \| good	27.442 \| good	0.36 \| good	2.495 \| good	0.171 \| good
2025-12-11T20:00:00.000Z	33 \| good	5.723 \| good	24.736 \| good	28.078 \| good	0.371 \| good	2.925 \| good	0.171 \| good
2025-12-11T21:00:00.000Z	33 \| good	5.958 \| good	26.549 \| good	27.747 \| good	0.383 \| good	3.356 \| good	0.171 \| good
2025-12-11T22:00:00.000Z	33 \| good	6.483 \| good	28.642 \| good	26.252 \| good	0.544 \| good	8.088 \| good	0.214 \| good
2025-12-11T23:00:00.000Z	38 \| good	6.536 \| good	29.153 \| good	24.899 \| good	0.705 \| good	12.819 \| good	0.257 \| good
2025-12-12T00:00:00.000Z	33 \| good	6.393 \| good	28.385 \| good	23.46 \| good	0.865 \| good	17.551 \| good	0.3 \| good
2025-12-12T01:00:00.000Z	38 \| good	7.029 \| good	31.195 \| good	22.5 \| good	0.985 \| good	20.56 \| good	0.324 \| good
2025-12-12T02:00:00.000Z	38 \| good	7.287 \| good	32.167 \| good	21.219 \| good	1.105 \| good	23.569 \| good	0.348 \| good
2025-12-12T03:00:00.000Z	44 \| good	7.576 \| good	33.301 \| good	19.56 \| good	1.225 \| good	26.578 \| good	0.373 \| good
2025-12-12T04:00:00.000Z	44 \| good	7.888 \| good	34.514 \| good	19.181 \| good	1.262 \| good	26.228 \| good	0.362 \| good
2025-12-12T05:00:00.000Z	38 \| good	7.497 \| good	32.669 \| good	17.887 \| good	1.299 \| good	25.878 \| good	0.351 \| good
2025-12-12T06:00:00.000Z	44 \| good	7.573 \| good	33.565 \| good	16.974 \| good	1.335 \| good	25.528 \| good	0.341 \| good
2025-12-12T07:00:00.000Z	44 \| good	7.957 \| good	34.746 \| good	15.651 \| good	1.294 \| good	25.569 \| good	0.334 \| good
2025-12-12T08:00:00.000Z	44 \| good	8.178 \| good	35.681 \| good	15.067 \| good	1.252 \| good	25.611 \| good	0.326 \| good
2025-12-12T09:00:00.000Z	49 \| good	8.625 \| good	37.709 \| good	15.006 \| good	1.21 \| good	25.652 \| good	0.319 \| good
2025-12-12T10:00:00.000Z	49 \| good	9.164 \| good	41.408 \| good	13.828 \| good	1.193 \| good	25.389 \| good	0.316 \| good
2025-12-12T11:00:00.000Z	52 \| moderate	10.041 \| good	44.469 \| good	13.389 \| good	1.175 \| good	25.127 \| good	0.313 \| good
2025-12-12T12:00:00.000Z	52 \| moderate	10.034 \| good	44.487 \| good	13.679 \| good	1.158 \| good	24.864 \| good	0.309 \| good
2025-12-12T13:00:00.000Z	52 \| moderate	10.179 \| good	45.425 \| good	13.477 \| good	1.22 \| good	21.054 \| good	0.317 \| good
2025-12-12T14:00:00.000Z	54 \| moderate	10.635 \| good	47.209 \| good	15.164 \| good	1.283 \| good	17.243 \| good	0.324 \| good
2025-12-12T15:00:00.000Z	54 \| moderate	11.489 \| good	51.192 \| good	20.214 \| good	1.345 \| good	13.433 \| good	0.331 \| good
2025-12-12T16:00:00.000Z	56 \| moderate	12.198 \| fine	54.942 \| good	24.388 \| good	1.271 \| good	12.14 \| good	0.329 \| good
2025-12-12T17:00:00.000Z	56 \| moderate	12.317 \| fine	55.107 \| fine	26.72 \| good	1.197 \| good	10.847 \| good	0.327 \| good
2025-12-12T18:00:00.000Z	58 \| moderate	13.389 \| fine	60.884 \| fine	27.997 \| good	1.122 \| good	9.555 \| good	0.325 \| good
2025-12-12T19:00:00.000Z	60 \| moderate	14.265 \| fine	63.515 \| fine	28.619 \| good	1.22 \| good	9.734 \| good	0.304 \| good
2025-12-12T20:00:00.000Z	62 \| moderate	14.715 \| fine	65.145 \| fine	28.607 \| good	1.317 \| good	9.914 \| good	0.283 \| good
2025-12-12T21:00:00.000Z	60 \| moderate	13.912 \| fine	62.899 \| fine	26.749 \| good	1.415 \| good	10.093 \| good	0.261 \| good
2025-12-12T22:00:00.000Z	60 \| moderate	14.369 \| fine	64.016 \| fine	25.955 \| good	1.131 \| good	9.51 \| good	0.249 \| good
2025-12-12T23:00:00.000Z	79 \| moderate	24.064 \| fine	105.052 \| fine	23.28 \| good	0.847 \| good	8.926 \| good	0.236 \| good
2025-12-13T00:00:00.000Z	58 \| moderate	13.001 \| fine	13.033 \| good	27.818 \| good	0.553 \| good	8.229 \| good	0.223 \| good
2025-12-13T01:00:00.000Z	52 \| moderate	10.214 \| good	45.137 \| good	14.982 \| good	0.439 \| good	7.268 \| good	0.222 \| good
2025-12-13T02:00:00.000Z	44 \| good	8.246 \| good	36.458 \| good	13.097 \| good	0.315 \| good	6.193 \| good	0.221 \| good
2025-12-13T03:00:00.000Z	38 \| good	6.66 \| good	29.814 \| good	12.488 \| good	0.191 \| good	5.118 \| good	0.219 \| good
2025-12-13T04:00:00.000Z	27 \| good	5.45 \| good	23.086 \| good	12.988 \| good	0.157 \| good	4.18 \| good	0.208 \| good

Live air quality index in DeKalb, Illinois today

Major air pollutants in DeKalb, Illinois

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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DeKalb, Illinois

Sycamore, Illinois

Campton Hills, Illinois

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Plano, Illinois

Geneva, Illinois

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Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

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

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