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

The PM10 concentration in Dekalb, Illinois is 48.865 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 0.345 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 17.651 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 14.961 ppb.

Real-time air quality index in DeKalb, Illinois today

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

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)

Moderate

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)

29.89 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

48.87 μg/m³

155

255

425

605+

Ozone (O₃)

17.65 ppb

201

201+

Sulfur Dioxide (SO₂)

0.34 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

14.96 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.53 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
2025-06-04T07:00:00.000Z	103 \| sensitive	5.053 \| good	158.96 \| moderate	40.412 \| good	0.263 \| good	2.791 \| good	0.592 \| good
2025-06-04T08:00:00.000Z	43 \| good	4.266 \| good	16.984 \| good	46.252 \| good	0.28 \| good	4.982 \| good	0.729 \| good
2025-06-04T09:00:00.000Z	64 \| moderate	16.079 \| fine	30.307 \| good	33.965 \| good	0.482 \| good	4.406 \| good	0.828 \| good
2025-06-04T10:00:00.000Z	127 \| sensitive	46.438 \| moderate	201.908 \| moderate	32.516 \| good	0.554 \| good	3.864 \| good	0.828 \| good
2025-06-04T11:00:00.000Z	105 \| sensitive	36.873 \| moderate	110.232 \| fine	34.045 \| good	0.473 \| good	4.165 \| good	0.86 \| good
2025-06-04T12:00:00.000Z	74 \| moderate	18.53 \| fine	101.614 \| fine	32.483 \| good	0.387 \| good	4.619 \| good	0.7 \| good
2025-06-04T13:00:00.000Z	124 \| sensitive	44.732 \| moderate	200.528 \| moderate	31.063 \| good	0.25 \| good	2.599 \| good	0.202 \| good
2025-06-04T14:00:00.000Z	107 \| sensitive	38.241 \| moderate	153.486 \| fine	35.911 \| good	0.241 \| good	4.385 \| good	0.822 \| good
2025-06-04T15:00:00.000Z	84 \| moderate	27.366 \| fine	106.923 \| fine	32.007 \| good	0.202 \| good	3.127 \| good	0.797 \| good
2025-06-04T16:00:00.000Z	82 \| moderate	20.744 \| fine	116.855 \| fine	35.293 \| good	0.278 \| good	3.31 \| good	0.509 \| good
2025-06-04T17:00:00.000Z	102 \| sensitive	27.968 \| fine	158.412 \| moderate	35.116 \| good	0.421 \| good	4.595 \| good	0.582 \| good
2025-06-04T18:00:00.000Z	79 \| moderate	23.937 \| fine	85.54 \| fine	38.469 \| good	0.343 \| good	3.565 \| good	0.595 \| good
2025-06-04T19:00:00.000Z	82 \| moderate	25.649 \| fine	113.969 \| fine	38.838 \| good	0.369 \| good	2.728 \| good	0.562 \| good
2025-06-04T20:00:00.000Z	92 \| moderate	30.543 \| fine	97.048 \| fine	41.846 \| good	0.323 \| good	2.77 \| good	0.387 \| good
2025-06-04T21:00:00.000Z	90 \| moderate	29.883 \| fine	81.331 \| fine	44.27 \| good	0.337 \| good	1.724 \| good	0.335 \| good
2025-06-04T22:00:00.000Z	84 \| moderate	26.681 \| fine	96.944 \| fine	44.457 \| good	0.488 \| good	2.258 \| good	0.335 \| good
2025-06-04T23:00:00.000Z	79 \| moderate	24.046 \| fine	50.772 \| good	41.932 \| good	0.34 \| good	2.538 \| good	0.335 \| good
2025-06-05T00:00:00.000Z	76 \| moderate	17.521 \| fine	105.078 \| fine	42.791 \| good	0.316 \| good	2.445 \| good	0.365 \| good
2025-06-05T01:00:00.000Z	79 \| moderate	24.139 \| fine	62.941 \| fine	41.507 \| good	0.264 \| good	3.509 \| good	0.415 \| good
2025-06-05T02:00:00.000Z	75 \| moderate	21.551 \| fine	72.093 \| fine	38.004 \| good	0.345 \| good	8.409 \| good	0.512 \| good
2025-06-05T03:00:00.000Z	153 \| unhealthy	58.013 \| poor	206.207 \| moderate	32.954 \| good	0.287 \| good	12.524 \| good	0.513 \| good
2025-06-05T04:00:00.000Z	88 \| moderate	28.994 \| fine	127.775 \| fine	28.662 \| good	0.407 \| good	21.354 \| good	0.529 \| good
2025-06-05T05:00:00.000Z	75 \| moderate	22.294 \| fine	90.851 \| fine	34.237 \| good	0.371 \| good	27.245 \| good	0.502 \| good
2025-06-05T06:00:00.000Z	85 \| moderate	27.312 \| fine	122.782 \| fine	18.746 \| good	0.327 \| good	24.882 \| good	0.502 \| good
2025-06-05T07:00:00.000Z	127 \| sensitive	45.832 \| moderate	163.775 \| moderate	19.545 \| good	0.469 \| good	22.034 \| good	0.474 \| good
2025-06-05T08:00:00.000Z	105 \| sensitive	36.534 \| moderate	110.733 \| fine	8.542 \| good	0.408 \| good	20.359 \| good	0.466 \| good
2025-06-05T09:00:00.000Z	142 \| sensitive	51.8 \| moderate	215.906 \| moderate	25.223 \| good	0.356 \| good	14.09 \| good	0.493 \| good
2025-06-05T10:00:00.000Z	81 \| moderate	24.87 \| fine	101.702 \| fine	16.144 \| good	0.371 \| good	14.062 \| good	0.47 \| good
2025-06-05T11:00:00.000Z	90 \| moderate	29.885 \| fine	48.865 \| good	17.651 \| good	0.345 \| good	14.961 \| good	0.532 \| good
2025-06-05T12:00:00.000Z	99 \| moderate	35.011 \| fine	98.181 \| fine	24.765 \| good	0.303 \| good	15.549 \| good	0.524 \| good
2025-06-05T13:00:00.000Z	77 \| moderate	18.333 \| fine	106.719 \| fine	15.637 \| good	0.287 \| good	7.663 \| good	0.469 \| good
2025-06-05T14:00:00.000Z	92 \| moderate	30.801 \| fine	68.766 \| fine	20.634 \| good	0.379 \| good	3.606 \| good	0.403 \| good
2025-06-05T15:00:00.000Z	102 \| sensitive	36.134 \| moderate	130.827 \| fine	29.426 \| good	0.411 \| good	1.773 \| good	0.388 \| good
2025-06-05T16:00:00.000Z	127 \| sensitive	46.051 \| moderate	190.709 \| moderate	35.313 \| good	0.804 \| good	3.373 \| good	0.388 \| good
2025-06-05T17:00:00.000Z	152 \| unhealthy	57.141 \| poor	255.048 \| poor	42.443 \| good	2.14 \| good	2.608 \| good	0.365 \| good
2025-06-05T18:00:00.000Z	115 \| sensitive	40.72 \| moderate	171.558 \| moderate	45.316 \| good	1.189 \| good	1.794 \| good	0.354 \| good
2025-06-05T19:00:00.000Z	99 \| moderate	35.311 \| fine	106.372 \| fine	46.567 \| good	1.136 \| good	1.624 \| good	0.307 \| good
2025-06-05T20:00:00.000Z	115 \| sensitive	40.927 \| moderate	98.461 \| fine	52.414 \| good	0.808 \| good	2.592 \| good	0.288 \| good
2025-06-05T21:00:00.000Z	145 \| sensitive	47.264 \| moderate	244.423 \| moderate	53.635 \| good	0.718 \| good	2.396 \| good	0.258 \| good
2025-06-05T22:00:00.000Z	149 \| sensitive	54.753 \| moderate	207.883 \| moderate	54.172 \| good	0.362 \| good	2.28 \| good	0.258 \| good
2025-06-05T23:00:00.000Z	110 \| sensitive	39.468 \| moderate	170.957 \| moderate	56.554 \| fine	0.345 \| good	2.513 \| good	0.239 \| good
2025-06-06T00:00:00.000Z	117 \| sensitive	42.066 \| moderate	118.363 \| fine	54.811 \| good	0.632 \| good	1.461 \| good	0.258 \| good
2025-06-06T01:00:00.000Z	119 \| sensitive	42.829 \| moderate	190.68 \| moderate	54.737 \| good	0.897 \| good	3.971 \| good	0.258 \| good
2025-06-06T02:00:00.000Z	132 \| sensitive	47.779 \| moderate	177.326 \| moderate	51.262 \| good	1.543 \| good	4.123 \| good	0.277 \| good
2025-06-06T03:00:00.000Z	144 \| sensitive	52.399 \| moderate	240.651 \| moderate	48.219 \| good	1.636 \| good	4.876 \| good	0.288 \| good
2025-06-06T04:00:00.000Z	131 \| sensitive	46.791 \| moderate	216.202 \| moderate	47.742 \| good	1.585 \| good	3.717 \| good	0.269 \| good
2025-06-06T05:00:00.000Z	137 \| sensitive	49.579 \| moderate	203.036 \| moderate	44.145 \| good	0.819 \| good	5.438 \| good	0.316 \| good
2025-06-05T11:00:00.000Z	90 \| moderate	29.885 \| fine	48.865 \| good	17.651 \| good	0.345 \| good	14.961 \| good	0.532 \| good
2025-06-05T12:00:00.000Z	102 \| sensitive	35.538 \| moderate	154.964 \| fine	30.277 \| good	0.987 \| good	6.217 \| good	0.263 \| good
2025-06-05T13:00:00.000Z	105 \| sensitive	36.956 \| moderate	161.526 \| moderate	33.737 \| good	0.841 \| good	2.525 \| good	0.227 \| good
2025-06-05T14:00:00.000Z	112 \| sensitive	40.235 \| moderate	177.73 \| moderate	37.849 \| good	0.95 \| good	2.649 \| good	0.227 \| good
2025-06-05T15:00:00.000Z	105 \| sensitive	36.754 \| moderate	161.179 \| moderate	41.677 \| good	1.06 \| good	2.774 \| good	0.226 \| good
2025-06-05T16:00:00.000Z	94 \| moderate	31.74 \| fine	137.268 \| fine	45.835 \| good	0.61 \| good	0.806 \| good	0.185 \| good
2025-06-05T17:00:00.000Z	88 \| moderate	28.74 \| fine	124.688 \| fine	47.972 \| good	0.699 \| good	0.886 \| good	0.19 \| good
2025-06-05T18:00:00.000Z	82 \| moderate	26.271 \| fine	114.385 \| fine	48.743 \| good	0.788 \| good	0.965 \| good	0.194 \| good
2025-06-05T19:00:00.000Z	79 \| moderate	23.592 \| fine	102.863 \| fine	48.437 \| good	0.502 \| good	0.775 \| good	0.184 \| good
2025-06-05T20:00:00.000Z	77 \| moderate	23.274 \| fine	101.833 \| fine	48.64 \| good	0.566 \| good	0.846 \| good	0.187 \| good
2025-06-05T21:00:00.000Z	81 \| moderate	25.306 \| fine	109.937 \| fine	48.331 \| good	0.629 \| good	0.917 \| good	0.19 \| good
2025-06-05T22:00:00.000Z	90 \| moderate	29.736 \| fine	128.452 \| fine	47.369 \| good	0.508 \| good	2.687 \| good	0.204 \| good
2025-06-05T23:00:00.000Z	101 \| sensitive	35.492 \| fine	154.619 \| fine	45.258 \| good	0.589 \| good	2.881 \| good	0.208 \| good
2025-06-06T00:00:00.000Z	110 \| sensitive	39.338 \| moderate	173.202 \| moderate	42.598 \| good	0.671 \| good	3.075 \| good	0.212 \| good
2025-06-06T01:00:00.000Z	112 \| sensitive	40.307 \| moderate	178.435 \| moderate	38.671 \| good	0.674 \| good	6.672 \| good	0.239 \| good
2025-06-06T02:00:00.000Z	112 \| sensitive	39.881 \| moderate	176.529 \| moderate	35.601 \| good	0.781 \| good	7.114 \| good	0.244 \| good
2025-06-06T03:00:00.000Z	115 \| sensitive	40.863 \| moderate	181.631 \| moderate	30.77 \| good	0.888 \| good	7.555 \| good	0.25 \| good
2025-06-06T04:00:00.000Z	115 \| sensitive	40.97 \| moderate	181.828 \| moderate	25.923 \| good	0.835 \| good	7.246 \| good	0.235 \| good
2025-06-06T05:00:00.000Z	112 \| sensitive	40.192 \| moderate	177.93 \| moderate	23.366 \| good	0.892 \| good	7.372 \| good	0.233 \| good
2025-06-06T06:00:00.000Z	107 \| sensitive	37.517 \| moderate	164.121 \| moderate	21.685 \| good	0.95 \| good	7.498 \| good	0.23 \| good
2025-06-06T07:00:00.000Z	97 \| moderate	34.029 \| fine	146.765 \| fine	20.865 \| good	0.79 \| good	6.272 \| good	0.205 \| good
2025-06-06T08:00:00.000Z	88 \| moderate	29.45 \| fine	127.336 \| fine	20.374 \| good	0.827 \| good	6.288 \| good	0.201 \| good
2025-06-06T09:00:00.000Z	81 \| moderate	25.464 \| fine	111.02 \| fine	19.482 \| good	0.863 \| good	6.304 \| good	0.197 \| good
2025-06-06T10:00:00.000Z	79 \| moderate	24.327 \| fine	105.961 \| fine	18.543 \| good	0.624 \| good	6.112 \| good	0.201 \| good
2025-06-06T11:00:00.000Z	73 \| moderate	21.123 \| fine	93.127 \| fine	17.099 \| good	0.677 \| good	6.083 \| good	0.198 \| good
2025-06-06T12:00:00.000Z	69 \| moderate	18.792 \| fine	83.159 \| fine	19.105 \| good	0.729 \| good	6.054 \| good	0.196 \| good
2025-06-06T13:00:00.000Z	67 \| moderate	18.169 \| fine	80.289 \| fine	19.995 \| good	1.216 \| good	3.694 \| good	0.2 \| good
2025-06-06T14:00:00.000Z	67 \| moderate	18.257 \| fine	80.888 \| fine	23.438 \| good	1.419 \| good	3.956 \| good	0.202 \| good
2025-06-06T15:00:00.000Z	66 \| moderate	17.14 \| fine	75.929 \| fine	31.638 \| good	1.622 \| good	4.218 \| good	0.203 \| good
2025-06-06T16:00:00.000Z	73 \| moderate	21.241 \| fine	92.619 \| fine	39.321 \| good	0.696 \| good	0.938 \| good	0.167 \| good
2025-06-06T17:00:00.000Z	81 \| moderate	24.678 \| fine	108.004 \| fine	46.009 \| good	0.787 \| good	1.065 \| good	0.166 \| good
2025-06-06T18:00:00.000Z	75 \| moderate	21.623 \| fine	94.989 \| fine	50.597 \| good	0.879 \| good	1.191 \| good	0.166 \| good
2025-06-06T19:00:00.000Z	62 \| moderate	15.035 \| fine	67.443 \| fine	51.222 \| good	0.482 \| good	0.766 \| good	0.159 \| good
2025-06-06T20:00:00.000Z	56 \| moderate	11.917 \| good	52.487 \| good	52.273 \| good	0.547 \| good	0.847 \| good	0.159 \| good
2025-06-06T21:00:00.000Z	56 \| moderate	12.471 \| fine	56.509 \| fine	54.525 \| good	0.612 \| good	0.928 \| good	0.158 \| good
2025-06-06T22:00:00.000Z	60 \| moderate	13.572 \| fine	60.499 \| fine	54.312 \| good	0.459 \| good	3.053 \| good	0.176 \| good
2025-06-06T23:00:00.000Z	58 \| moderate	13.422 \| fine	60.171 \| fine	50.098 \| good	0.544 \| good	3.232 \| good	0.175 \| good
2025-06-07T00:00:00.000Z	54 \| moderate	11.232 \| good	49.663 \| good	42.684 \| good	0.63 \| good	3.412 \| good	0.174 \| good
2025-06-07T01:00:00.000Z	56 \| moderate	12.478 \| fine	55.695 \| fine	38.753 \| good	0.848 \| good	8.556 \| good	0.205 \| good
2025-06-07T02:00:00.000Z	62 \| moderate	15.261 \| fine	68.629 \| fine	32.916 \| good	1.006 \| good	9.269 \| good	0.209 \| good
2025-06-07T03:00:00.000Z	67 \| moderate	17.634 \| fine	77.634 \| fine	26.659 \| good	1.163 \| good	9.981 \| good	0.212 \| good
2025-06-07T04:00:00.000Z	67 \| moderate	17.926 \| fine	79.697 \| fine	21.676 \| good	1.355 \| good	10.049 \| good	0.208 \| good
2025-06-07T05:00:00.000Z	62 \| moderate	15.369 \| fine	68.842 \| fine	17.958 \| good	1.394 \| good	10.618 \| good	0.213 \| good
2025-06-07T06:00:00.000Z	67 \| moderate	17.873 \| fine	18.412 \| good	30.801 \| good	1.426 \| good	11.169 \| good	0.218 \| good
2025-06-07T07:00:00.000Z	56 \| moderate	11.734 \| good	52.109 \| good	17.605 \| good	1.05 \| good	8.534 \| good	0.206 \| good
2025-06-07T08:00:00.000Z	56 \| moderate	11.802 \| good	52.001 \| good	16.662 \| good	1.018 \| good	8.224 \| good	0.206 \| good
2025-06-07T09:00:00.000Z	58 \| moderate	12.766 \| fine	57.06 \| fine	16.69 \| good	0.986 \| good	7.914 \| good	0.205 \| good
2025-06-07T10:00:00.000Z	62 \| moderate	14.565 \| fine	64.771 \| fine	15.075 \| good	0.643 \| good	5.182 \| good	0.192 \| good
2025-06-07T11:00:00.000Z	64 \| moderate	15.713 \| fine	70.519 \| fine	15.871 \| good	0.671 \| good	5.092 \| good	0.19 \| good

DeKalb

Get reliable air quality data to drive your business

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

0.47ppm

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 03:00:00 on 2025-06-05.

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 2025-06-04.

What is the AQI in Dekalb, Illinois right now?

As of now, the AQI in Dekalb, Illinois is 90, indicating Moderate conditions.

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

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

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 29.885 μg/m³.

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

The PM₁₀ concentration in Dekalb, Illinois is 48.865 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 0.532 ppm.

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

Currently, Dekalb, Illinois has a sulfur dioxide (SO₂) concentration of 0.345 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 17.651 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 14.961 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-04T07:00:00.000Z	103 \| sensitive	5.053 \| good	158.96 \| moderate	40.412 \| good	0.263 \| good	2.791 \| good	0.592 \| good
2025-06-04T08:00:00.000Z	43 \| good	4.266 \| good	16.984 \| good	46.252 \| good	0.28 \| good	4.982 \| good	0.729 \| good
2025-06-04T09:00:00.000Z	64 \| moderate	16.079 \| fine	30.307 \| good	33.965 \| good	0.482 \| good	4.406 \| good	0.828 \| good
2025-06-04T10:00:00.000Z	127 \| sensitive	46.438 \| moderate	201.908 \| moderate	32.516 \| good	0.554 \| good	3.864 \| good	0.828 \| good
2025-06-04T11:00:00.000Z	105 \| sensitive	36.873 \| moderate	110.232 \| fine	34.045 \| good	0.473 \| good	4.165 \| good	0.86 \| good
2025-06-04T12:00:00.000Z	74 \| moderate	18.53 \| fine	101.614 \| fine	32.483 \| good	0.387 \| good	4.619 \| good	0.7 \| good
2025-06-04T13:00:00.000Z	124 \| sensitive	44.732 \| moderate	200.528 \| moderate	31.063 \| good	0.25 \| good	2.599 \| good	0.202 \| good
2025-06-04T14:00:00.000Z	107 \| sensitive	38.241 \| moderate	153.486 \| fine	35.911 \| good	0.241 \| good	4.385 \| good	0.822 \| good
2025-06-04T15:00:00.000Z	84 \| moderate	27.366 \| fine	106.923 \| fine	32.007 \| good	0.202 \| good	3.127 \| good	0.797 \| good
2025-06-04T16:00:00.000Z	82 \| moderate	20.744 \| fine	116.855 \| fine	35.293 \| good	0.278 \| good	3.31 \| good	0.509 \| good
2025-06-04T17:00:00.000Z	102 \| sensitive	27.968 \| fine	158.412 \| moderate	35.116 \| good	0.421 \| good	4.595 \| good	0.582 \| good
2025-06-04T18:00:00.000Z	79 \| moderate	23.937 \| fine	85.54 \| fine	38.469 \| good	0.343 \| good	3.565 \| good	0.595 \| good
2025-06-04T19:00:00.000Z	82 \| moderate	25.649 \| fine	113.969 \| fine	38.838 \| good	0.369 \| good	2.728 \| good	0.562 \| good
2025-06-04T20:00:00.000Z	92 \| moderate	30.543 \| fine	97.048 \| fine	41.846 \| good	0.323 \| good	2.77 \| good	0.387 \| good
2025-06-04T21:00:00.000Z	90 \| moderate	29.883 \| fine	81.331 \| fine	44.27 \| good	0.337 \| good	1.724 \| good	0.335 \| good
2025-06-04T22:00:00.000Z	84 \| moderate	26.681 \| fine	96.944 \| fine	44.457 \| good	0.488 \| good	2.258 \| good	0.335 \| good
2025-06-04T23:00:00.000Z	79 \| moderate	24.046 \| fine	50.772 \| good	41.932 \| good	0.34 \| good	2.538 \| good	0.335 \| good
2025-06-05T00:00:00.000Z	76 \| moderate	17.521 \| fine	105.078 \| fine	42.791 \| good	0.316 \| good	2.445 \| good	0.365 \| good
2025-06-05T01:00:00.000Z	79 \| moderate	24.139 \| fine	62.941 \| fine	41.507 \| good	0.264 \| good	3.509 \| good	0.415 \| good
2025-06-05T02:00:00.000Z	75 \| moderate	21.551 \| fine	72.093 \| fine	38.004 \| good	0.345 \| good	8.409 \| good	0.512 \| good
2025-06-05T03:00:00.000Z	153 \| unhealthy	58.013 \| poor	206.207 \| moderate	32.954 \| good	0.287 \| good	12.524 \| good	0.513 \| good
2025-06-05T04:00:00.000Z	88 \| moderate	28.994 \| fine	127.775 \| fine	28.662 \| good	0.407 \| good	21.354 \| good	0.529 \| good
2025-06-05T05:00:00.000Z	75 \| moderate	22.294 \| fine	90.851 \| fine	34.237 \| good	0.371 \| good	27.245 \| good	0.502 \| good
2025-06-05T06:00:00.000Z	85 \| moderate	27.312 \| fine	122.782 \| fine	18.746 \| good	0.327 \| good	24.882 \| good	0.502 \| good
2025-06-05T07:00:00.000Z	127 \| sensitive	45.832 \| moderate	163.775 \| moderate	19.545 \| good	0.469 \| good	22.034 \| good	0.474 \| good
2025-06-05T08:00:00.000Z	105 \| sensitive	36.534 \| moderate	110.733 \| fine	8.542 \| good	0.408 \| good	20.359 \| good	0.466 \| good
2025-06-05T09:00:00.000Z	142 \| sensitive	51.8 \| moderate	215.906 \| moderate	25.223 \| good	0.356 \| good	14.09 \| good	0.493 \| good
2025-06-05T10:00:00.000Z	81 \| moderate	24.87 \| fine	101.702 \| fine	16.144 \| good	0.371 \| good	14.062 \| good	0.47 \| good
2025-06-05T11:00:00.000Z	90 \| moderate	29.885 \| fine	48.865 \| good	17.651 \| good	0.345 \| good	14.961 \| good	0.532 \| good
2025-06-05T12:00:00.000Z	99 \| moderate	35.011 \| fine	98.181 \| fine	24.765 \| good	0.303 \| good	15.549 \| good	0.524 \| good
2025-06-05T13:00:00.000Z	77 \| moderate	18.333 \| fine	106.719 \| fine	15.637 \| good	0.287 \| good	7.663 \| good	0.469 \| good
2025-06-05T14:00:00.000Z	92 \| moderate	30.801 \| fine	68.766 \| fine	20.634 \| good	0.379 \| good	3.606 \| good	0.403 \| good
2025-06-05T15:00:00.000Z	102 \| sensitive	36.134 \| moderate	130.827 \| fine	29.426 \| good	0.411 \| good	1.773 \| good	0.388 \| good
2025-06-05T16:00:00.000Z	127 \| sensitive	46.051 \| moderate	190.709 \| moderate	35.313 \| good	0.804 \| good	3.373 \| good	0.388 \| good
2025-06-05T17:00:00.000Z	152 \| unhealthy	57.141 \| poor	255.048 \| poor	42.443 \| good	2.14 \| good	2.608 \| good	0.365 \| good
2025-06-05T18:00:00.000Z	115 \| sensitive	40.72 \| moderate	171.558 \| moderate	45.316 \| good	1.189 \| good	1.794 \| good	0.354 \| good
2025-06-05T19:00:00.000Z	99 \| moderate	35.311 \| fine	106.372 \| fine	46.567 \| good	1.136 \| good	1.624 \| good	0.307 \| good
2025-06-05T20:00:00.000Z	115 \| sensitive	40.927 \| moderate	98.461 \| fine	52.414 \| good	0.808 \| good	2.592 \| good	0.288 \| good
2025-06-05T21:00:00.000Z	145 \| sensitive	47.264 \| moderate	244.423 \| moderate	53.635 \| good	0.718 \| good	2.396 \| good	0.258 \| good
2025-06-05T22:00:00.000Z	149 \| sensitive	54.753 \| moderate	207.883 \| moderate	54.172 \| good	0.362 \| good	2.28 \| good	0.258 \| good
2025-06-05T23:00:00.000Z	110 \| sensitive	39.468 \| moderate	170.957 \| moderate	56.554 \| fine	0.345 \| good	2.513 \| good	0.239 \| good
2025-06-06T00:00:00.000Z	117 \| sensitive	42.066 \| moderate	118.363 \| fine	54.811 \| good	0.632 \| good	1.461 \| good	0.258 \| good
2025-06-06T01:00:00.000Z	119 \| sensitive	42.829 \| moderate	190.68 \| moderate	54.737 \| good	0.897 \| good	3.971 \| good	0.258 \| good
2025-06-06T02:00:00.000Z	132 \| sensitive	47.779 \| moderate	177.326 \| moderate	51.262 \| good	1.543 \| good	4.123 \| good	0.277 \| good
2025-06-06T03:00:00.000Z	144 \| sensitive	52.399 \| moderate	240.651 \| moderate	48.219 \| good	1.636 \| good	4.876 \| good	0.288 \| good
2025-06-06T04:00:00.000Z	131 \| sensitive	46.791 \| moderate	216.202 \| moderate	47.742 \| good	1.585 \| good	3.717 \| good	0.269 \| good
2025-06-06T05:00:00.000Z	137 \| sensitive	49.579 \| moderate	203.036 \| moderate	44.145 \| good	0.819 \| good	5.438 \| good	0.316 \| good
2025-06-05T11:00:00.000Z	90 \| moderate	29.885 \| fine	48.865 \| good	17.651 \| good	0.345 \| good	14.961 \| good	0.532 \| good
2025-06-05T12:00:00.000Z	102 \| sensitive	35.538 \| moderate	154.964 \| fine	30.277 \| good	0.987 \| good	6.217 \| good	0.263 \| good
2025-06-05T13:00:00.000Z	105 \| sensitive	36.956 \| moderate	161.526 \| moderate	33.737 \| good	0.841 \| good	2.525 \| good	0.227 \| good
2025-06-05T14:00:00.000Z	112 \| sensitive	40.235 \| moderate	177.73 \| moderate	37.849 \| good	0.95 \| good	2.649 \| good	0.227 \| good
2025-06-05T15:00:00.000Z	105 \| sensitive	36.754 \| moderate	161.179 \| moderate	41.677 \| good	1.06 \| good	2.774 \| good	0.226 \| good
2025-06-05T16:00:00.000Z	94 \| moderate	31.74 \| fine	137.268 \| fine	45.835 \| good	0.61 \| good	0.806 \| good	0.185 \| good
2025-06-05T17:00:00.000Z	88 \| moderate	28.74 \| fine	124.688 \| fine	47.972 \| good	0.699 \| good	0.886 \| good	0.19 \| good
2025-06-05T18:00:00.000Z	82 \| moderate	26.271 \| fine	114.385 \| fine	48.743 \| good	0.788 \| good	0.965 \| good	0.194 \| good
2025-06-05T19:00:00.000Z	79 \| moderate	23.592 \| fine	102.863 \| fine	48.437 \| good	0.502 \| good	0.775 \| good	0.184 \| good
2025-06-05T20:00:00.000Z	77 \| moderate	23.274 \| fine	101.833 \| fine	48.64 \| good	0.566 \| good	0.846 \| good	0.187 \| good
2025-06-05T21:00:00.000Z	81 \| moderate	25.306 \| fine	109.937 \| fine	48.331 \| good	0.629 \| good	0.917 \| good	0.19 \| good
2025-06-05T22:00:00.000Z	90 \| moderate	29.736 \| fine	128.452 \| fine	47.369 \| good	0.508 \| good	2.687 \| good	0.204 \| good
2025-06-05T23:00:00.000Z	101 \| sensitive	35.492 \| fine	154.619 \| fine	45.258 \| good	0.589 \| good	2.881 \| good	0.208 \| good
2025-06-06T00:00:00.000Z	110 \| sensitive	39.338 \| moderate	173.202 \| moderate	42.598 \| good	0.671 \| good	3.075 \| good	0.212 \| good
2025-06-06T01:00:00.000Z	112 \| sensitive	40.307 \| moderate	178.435 \| moderate	38.671 \| good	0.674 \| good	6.672 \| good	0.239 \| good
2025-06-06T02:00:00.000Z	112 \| sensitive	39.881 \| moderate	176.529 \| moderate	35.601 \| good	0.781 \| good	7.114 \| good	0.244 \| good
2025-06-06T03:00:00.000Z	115 \| sensitive	40.863 \| moderate	181.631 \| moderate	30.77 \| good	0.888 \| good	7.555 \| good	0.25 \| good
2025-06-06T04:00:00.000Z	115 \| sensitive	40.97 \| moderate	181.828 \| moderate	25.923 \| good	0.835 \| good	7.246 \| good	0.235 \| good
2025-06-06T05:00:00.000Z	112 \| sensitive	40.192 \| moderate	177.93 \| moderate	23.366 \| good	0.892 \| good	7.372 \| good	0.233 \| good
2025-06-06T06:00:00.000Z	107 \| sensitive	37.517 \| moderate	164.121 \| moderate	21.685 \| good	0.95 \| good	7.498 \| good	0.23 \| good
2025-06-06T07:00:00.000Z	97 \| moderate	34.029 \| fine	146.765 \| fine	20.865 \| good	0.79 \| good	6.272 \| good	0.205 \| good
2025-06-06T08:00:00.000Z	88 \| moderate	29.45 \| fine	127.336 \| fine	20.374 \| good	0.827 \| good	6.288 \| good	0.201 \| good
2025-06-06T09:00:00.000Z	81 \| moderate	25.464 \| fine	111.02 \| fine	19.482 \| good	0.863 \| good	6.304 \| good	0.197 \| good
2025-06-06T10:00:00.000Z	79 \| moderate	24.327 \| fine	105.961 \| fine	18.543 \| good	0.624 \| good	6.112 \| good	0.201 \| good
2025-06-06T11:00:00.000Z	73 \| moderate	21.123 \| fine	93.127 \| fine	17.099 \| good	0.677 \| good	6.083 \| good	0.198 \| good
2025-06-06T12:00:00.000Z	69 \| moderate	18.792 \| fine	83.159 \| fine	19.105 \| good	0.729 \| good	6.054 \| good	0.196 \| good
2025-06-06T13:00:00.000Z	67 \| moderate	18.169 \| fine	80.289 \| fine	19.995 \| good	1.216 \| good	3.694 \| good	0.2 \| good
2025-06-06T14:00:00.000Z	67 \| moderate	18.257 \| fine	80.888 \| fine	23.438 \| good	1.419 \| good	3.956 \| good	0.202 \| good
2025-06-06T15:00:00.000Z	66 \| moderate	17.14 \| fine	75.929 \| fine	31.638 \| good	1.622 \| good	4.218 \| good	0.203 \| good
2025-06-06T16:00:00.000Z	73 \| moderate	21.241 \| fine	92.619 \| fine	39.321 \| good	0.696 \| good	0.938 \| good	0.167 \| good
2025-06-06T17:00:00.000Z	81 \| moderate	24.678 \| fine	108.004 \| fine	46.009 \| good	0.787 \| good	1.065 \| good	0.166 \| good
2025-06-06T18:00:00.000Z	75 \| moderate	21.623 \| fine	94.989 \| fine	50.597 \| good	0.879 \| good	1.191 \| good	0.166 \| good
2025-06-06T19:00:00.000Z	62 \| moderate	15.035 \| fine	67.443 \| fine	51.222 \| good	0.482 \| good	0.766 \| good	0.159 \| good
2025-06-06T20:00:00.000Z	56 \| moderate	11.917 \| good	52.487 \| good	52.273 \| good	0.547 \| good	0.847 \| good	0.159 \| good
2025-06-06T21:00:00.000Z	56 \| moderate	12.471 \| fine	56.509 \| fine	54.525 \| good	0.612 \| good	0.928 \| good	0.158 \| good
2025-06-06T22:00:00.000Z	60 \| moderate	13.572 \| fine	60.499 \| fine	54.312 \| good	0.459 \| good	3.053 \| good	0.176 \| good
2025-06-06T23:00:00.000Z	58 \| moderate	13.422 \| fine	60.171 \| fine	50.098 \| good	0.544 \| good	3.232 \| good	0.175 \| good
2025-06-07T00:00:00.000Z	54 \| moderate	11.232 \| good	49.663 \| good	42.684 \| good	0.63 \| good	3.412 \| good	0.174 \| good
2025-06-07T01:00:00.000Z	56 \| moderate	12.478 \| fine	55.695 \| fine	38.753 \| good	0.848 \| good	8.556 \| good	0.205 \| good
2025-06-07T02:00:00.000Z	62 \| moderate	15.261 \| fine	68.629 \| fine	32.916 \| good	1.006 \| good	9.269 \| good	0.209 \| good
2025-06-07T03:00:00.000Z	67 \| moderate	17.634 \| fine	77.634 \| fine	26.659 \| good	1.163 \| good	9.981 \| good	0.212 \| good
2025-06-07T04:00:00.000Z	67 \| moderate	17.926 \| fine	79.697 \| fine	21.676 \| good	1.355 \| good	10.049 \| good	0.208 \| good
2025-06-07T05:00:00.000Z	62 \| moderate	15.369 \| fine	68.842 \| fine	17.958 \| good	1.394 \| good	10.618 \| good	0.213 \| good
2025-06-07T06:00:00.000Z	67 \| moderate	17.873 \| fine	18.412 \| good	30.801 \| good	1.426 \| good	11.169 \| good	0.218 \| good
2025-06-07T07:00:00.000Z	56 \| moderate	11.734 \| good	52.109 \| good	17.605 \| good	1.05 \| good	8.534 \| good	0.206 \| good
2025-06-07T08:00:00.000Z	56 \| moderate	11.802 \| good	52.001 \| good	16.662 \| good	1.018 \| good	8.224 \| good	0.206 \| good
2025-06-07T09:00:00.000Z	58 \| moderate	12.766 \| fine	57.06 \| fine	16.69 \| good	0.986 \| good	7.914 \| good	0.205 \| good
2025-06-07T10:00:00.000Z	62 \| moderate	14.565 \| fine	64.771 \| fine	15.075 \| good	0.643 \| good	5.182 \| good	0.192 \| good
2025-06-07T11:00:00.000Z	64 \| moderate	15.713 \| fine	70.519 \| fine	15.871 \| good	0.671 \| good	5.092 \| good	0.19 \| good

Real-time 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)

Track live DeKalb, Illinois air quality forecast and history

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

Air quality in nearby cities

DeKalb, Illinois

Sycamore, Illinois

Campton Hills, Illinois

Pingree Grove, Illinois

Plano, Illinois

Geneva, Illinois

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Frequently asked questions

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

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

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

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

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?

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 Dekalb, Illinois at the moment?

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

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

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?