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

The PM10 concentration in Northbrook, Illinois is 39.868 μg/m3 at the moment.

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

Currently, Northbrook, Illinois has a sulfur dioxide (SO2) concentration of 1.328 ppb.

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

The current ozone (O3) level in Northbrook, Illinois at the moment is 45.353 ppm.

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

Nitrogen dioxide (NO2) level in Northbrook, Illinois at the moment is 8.648 ppb.

Live air quality index in Northbrook, Illinois today

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

PM2.5 levels in Northbrook, Illinois are currently 16.892 μg/m3.

Stay updated with real-time air quality in Northbrook, 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

Northbrook, Illinois

Last updated: ... (Local time)

Major air pollutants in Northbrook, Illinois

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

16.89 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

39.87 μg/m³

155

255

425

605+

Ozone (O₃)

45.35 ppb

201

201+

Sulfur Dioxide (SO₂)

1.33 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

8.65 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.26 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Northbrook, Illinois

Get Live Pollen Counts

Northbrook, Illinois

Scroll To Air Quality Map

Track live Northbrook, Illinois air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-20T23:00:00.000Z	44 \| good	6.385 \| good	19.838 \| good	46.832 \| good	2.462 \| good	25.398 \| good	0.237 \| good
2026-10-21T00:00:00.000Z	43 \| good	6.796 \| good	18.364 \| good	46.171 \| good	0.798 \| good	24.459 \| good	0.275 \| good
2026-10-21T01:00:00.000Z	38 \| good	7.45 \| good	19.879 \| good	40.9 \| good	0.643 \| good	30.435 \| good	0.289 \| good
2026-10-21T02:00:00.000Z	49 \| good	8.626 \| good	20.159 \| good	34.442 \| good	0.592 \| good	26.504 \| good	0.304 \| good
2026-10-21T03:00:00.000Z	52 \| moderate	9.818 \| good	43.405 \| good	13.32 \| good	2.528 \| good	33.756 \| good	0.282 \| good
2026-10-21T04:00:00.000Z	58 \| moderate	12.86 \| fine	27.681 \| good	19.333 \| good	0.601 \| good	23.162 \| good	0.328 \| good
2026-10-21T05:00:00.000Z	58 \| moderate	13.443 \| fine	27.792 \| good	12.529 \| good	1.526 \| good	23.087 \| good	0.301 \| good
2026-10-21T06:00:00.000Z	60 \| moderate	13.636 \| fine	27.954 \| good	7.8 \| good	1.955 \| good	22.779 \| good	0.29 \| good
2026-10-21T07:00:00.000Z	58 \| moderate	12.994 \| fine	27.707 \| good	6.909 \| good	1.67 \| good	19.041 \| good	0.304 \| good
2026-10-21T08:00:00.000Z	58 \| moderate	12.965 \| fine	28.41 \| good	4.879 \| good	0.921 \| good	19.24 \| good	0.266 \| good
2026-10-21T09:00:00.000Z	58 \| moderate	13 \| fine	27.584 \| good	6.75 \| good	0.879 \| good	19.727 \| good	0.252 \| good
2026-10-21T10:00:00.000Z	60 \| moderate	14.187 \| fine	30.942 \| good	6.262 \| good	0.925 \| good	21.458 \| good	0.304 \| good
2026-10-21T11:00:00.000Z	60 \| moderate	14.363 \| fine	32.054 \| good	3.714 \| good	0.986 \| good	23.635 \| good	0.38 \| good
2026-10-21T12:00:00.000Z	69 \| moderate	18.748 \| fine	43.89 \| good	4.599 \| good	0.958 \| good	22.313 \| good	0.392 \| good
2026-10-21T13:00:00.000Z	67 \| moderate	18.489 \| fine	43.964 \| good	2.373 \| good	0.987 \| good	17.39 \| good	0.392 \| good
2026-10-21T14:00:00.000Z	84 \| moderate	26.799 \| fine	79.113 \| fine	4.599 \| good	1.163 \| good	24.649 \| good	0.475 \| good
2026-10-21T15:00:00.000Z	84 \| moderate	27.137 \| fine	84.311 \| fine	7.318 \| good	1.613 \| good	23.174 \| good	0.427 \| good
2026-10-21T16:00:00.000Z	84 \| moderate	27.208 \| fine	77.094 \| fine	9.617 \| good	1.981 \| good	21.368 \| good	0.328 \| good
2026-10-21T17:00:00.000Z	75 \| moderate	21.758 \| fine	69.814 \| fine	13.982 \| good	1.91 \| good	18.986 \| good	0.272 \| good
2026-10-21T18:00:00.000Z	64 \| moderate	15.977 \| fine	57.122 \| fine	23.743 \| good	1.999 \| good	17.255 \| good	0.261 \| good
2026-10-21T19:00:00.000Z	64 \| moderate	15.997 \| fine	56.754 \| fine	28.578 \| good	1.297 \| good	17.54 \| good	0.261 \| good
2026-10-21T20:00:00.000Z	54 \| moderate	10.948 \| good	40.074 \| good	38.526 \| good	1.299 \| good	15.589 \| good	0.261 \| good
2026-10-21T21:00:00.000Z	54 \| moderate	10.958 \| good	39.616 \| good	42.642 \| good	1.477 \| good	16.338 \| good	0.261 \| good
2026-10-21T22:00:00.000Z	56 \| moderate	12.031 \| good	39.038 \| good	44.252 \| good	1.684 \| good	16.493 \| good	0.261 \| good
2026-10-21T23:00:00.000Z	60 \| moderate	13.716 \| fine	42.4 \| good	41.869 \| good	2.114 \| good	24.46 \| good	0.275 \| good
2026-10-22T00:00:00.000Z	60 \| moderate	13.837 \| fine	45.364 \| good	39.272 \| good	1.522 \| good	15.689 \| good	0.339 \| good
2026-10-22T01:00:00.000Z	62 \| moderate	15.31 \| fine	46.513 \| good	35.552 \| good	1.065 \| good	22.104 \| good	0.377 \| good
2026-10-22T02:00:00.000Z	60 \| moderate	13.979 \| fine	45.189 \| good	31.99 \| good	0.848 \| good	32.679 \| good	0.403 \| good
2026-10-22T03:00:00.000Z	38 \| good	6.656 \| good	30.08 \| good	15.374 \| good	2.714 \| good	40.121 \| good	0.461 \| good
2026-10-22T04:00:00.000Z	58 \| moderate	12.852 \| fine	41.549 \| good	25.589 \| good	1.487 \| good	32.121 \| good	0.455 \| good
2026-10-22T05:00:00.000Z	60 \| moderate	13.866 \| fine	42.282 \| good	18.012 \| good	1.214 \| good	30.742 \| good	0.414 \| good
2026-10-22T06:00:00.000Z	62 \| moderate	14.908 \| fine	44.893 \| good	12.884 \| good	1.141 \| good	25.489 \| good	0.403 \| good
2026-10-22T07:00:00.000Z	62 \| moderate	14.876 \| fine	44.338 \| good	5.065 \| good	1.151 \| good	24.074 \| good	0.403 \| good
2026-10-22T08:00:00.000Z	64 \| moderate	16.047 \| fine	46.197 \| good	4.065 \| good	1.067 \| good	24.815 \| good	0.35 \| good
2026-10-22T09:00:00.000Z	64 \| moderate	15.969 \| fine	44.769 \| good	1.431 \| good	1.038 \| good	23.394 \| good	0.336 \| good
2026-10-22T10:00:00.000Z	62 \| moderate	15.35 \| fine	39.028 \| good	2.494 \| good	0.894 \| good	19.727 \| good	0.324 \| good
2026-10-22T11:00:00.000Z	62 \| moderate	15.277 \| fine	37.511 \| good	3.6 \| good	0.871 \| good	18.532 \| good	0.434 \| good
2026-10-22T12:00:00.000Z	62 \| moderate	15.299 \| fine	38.412 \| good	3.744 \| good	0.868 \| good	20.286 \| good	0.481 \| good
2026-10-22T13:00:00.000Z	62 \| moderate	14.817 \| fine	36.328 \| good	4.309 \| good	1.005 \| good	19.843 \| good	0.458 \| good
2026-10-22T14:00:00.000Z	67 \| moderate	18.015 \| fine	38.043 \| good	4.605 \| good	1.249 \| good	19.172 \| good	0.507 \| good
2026-10-22T15:00:00.000Z	66 \| moderate	16.805 \| fine	42.206 \| good	8.589 \| good	1.443 \| good	21.611 \| good	0.496 \| good
2026-10-22T16:00:00.000Z	62 \| moderate	14.985 \| fine	41.253 \| good	16.182 \| good	1.56 \| good	23.683 \| good	0.333 \| good
2026-10-22T17:00:00.000Z	62 \| moderate	15.078 \| fine	41.771 \| good	30.753 \| good	1.866 \| good	23.559 \| good	0.301 \| good
2026-10-22T18:00:00.000Z	62 \| moderate	15.254 \| fine	41.623 \| good	32.738 \| good	1.534 \| good	25.64 \| good	0.252 \| good
2026-10-22T19:00:00.000Z	64 \| moderate	15.806 \| fine	40.928 \| good	37.648 \| good	2.337 \| good	17.346 \| good	0.223 \| good
2026-10-22T20:00:00.000Z	64 \| moderate	16.052 \| fine	39.994 \| good	42.272 \| good	1.761 \| good	9.58 \| good	0.223 \| good
2026-10-22T21:00:00.000Z	64 \| moderate	15.66 \| fine	38.619 \| good	46.046 \| good	1.712 \| good	6.506 \| good	0.261 \| good
2026-10-22T22:00:00.000Z	66 \| moderate	16.892 \| fine	39.868 \| good	45.353 \| good	1.328 \| good	8.648 \| good	0.261 \| good
2026-10-22T22:00:00.000Z	66 \| moderate	16.892 \| fine	39.868 \| good	45.353 \| good	1.328 \| good	8.648 \| good	0.261 \| good
2026-10-22T23:00:00.000Z	64 \| moderate	16.39 \| fine	72.943 \| fine	47.841 \| good	1.556 \| good	38.507 \| good	0.378 \| good
2026-10-23T00:00:00.000Z	58 \| moderate	13.284 \| fine	60.47 \| fine	38.699 \| good	1.727 \| good	43.543 \| good	0.435 \| good
2026-10-23T01:00:00.000Z	54 \| moderate	11.292 \| good	49.858 \| good	33.601 \| good	1.831 \| good	44.49 \| good	0.442 \| good
2026-10-23T02:00:00.000Z	52 \| moderate	9.696 \| good	42.889 \| good	27.312 \| good	1.949 \| good	45.205 \| good	0.436 \| good
2026-10-23T03:00:00.000Z	52 \| moderate	9.56 \| good	42.731 \| good	24.016 \| good	2.088 \| good	45.13 \| good	0.432 \| good
2026-10-23T04:00:00.000Z	44 \| good	8.207 \| good	36.102 \| good	23.102 \| good	2.197 \| good	44.717 \| good	0.434 \| good
2026-10-23T05:00:00.000Z	42 \| good	7.375 \| good	32.242 \| good	21.592 \| good	2.181 \| good	43.863 \| good	0.433 \| good
2026-10-23T06:00:00.000Z	44 \| good	8.155 \| good	36.026 \| good	19.516 \| good	2.144 \| good	42.711 \| good	0.418 \| good
2026-10-23T07:00:00.000Z	52 \| moderate	9.693 \| good	43.143 \| good	18.08 \| good	2.218 \| good	41.533 \| good	0.403 \| good
2026-10-23T08:00:00.000Z	56 \| moderate	11.804 \| good	52.293 \| good	19.233 \| good	2.354 \| good	40.426 \| good	0.393 \| good
2026-10-23T09:00:00.000Z	64 \| moderate	15.841 \| fine	70.771 \| fine	13.058 \| good	2.528 \| good	39.308 \| good	0.384 \| good
2026-10-23T10:00:00.000Z	75 \| moderate	21.659 \| fine	94.466 \| fine	8.019 \| good	2.784 \| good	38.2 \| good	0.376 \| good
2026-10-23T11:00:00.000Z	82 \| moderate	26.179 \| fine	114.206 \| fine	1.518 \| good	3.005 \| good	37.335 \| good	0.373 \| good
2026-10-23T12:00:00.000Z	88 \| moderate	29.067 \| fine	126.309 \| fine	0.535 \| good	3.301 \| good	36.692 \| good	0.385 \| good
2026-10-23T13:00:00.000Z	90 \| moderate	29.688 \| fine	128.867 \| fine	1.141 \| good	3.536 \| good	33.423 \| good	0.418 \| good
2026-10-23T14:00:00.000Z	81 \| moderate	25.104 \| fine	109.536 \| fine	6.65 \| good	3.297 \| good	28.781 \| good	0.414 \| good
2026-10-23T15:00:00.000Z	73 \| moderate	20.519 \| fine	89.761 \| fine	19.198 \| good	3.096 \| good	26.181 \| good	0.389 \| good
2026-10-23T16:00:00.000Z	69 \| moderate	18.785 \| fine	83.456 \| fine	30.245 \| good	2.836 \| good	22.82 \| good	0.332 \| good
2026-10-23T17:00:00.000Z	66 \| moderate	16.933 \| fine	75.39 \| fine	37.51 \| good	2.526 \| good	18.897 \| good	0.288 \| good
2026-10-23T18:00:00.000Z	62 \| moderate	15.34 \| fine	69.209 \| fine	44.67 \| good	2.416 \| good	14.335 \| good	0.254 \| good
2026-10-23T19:00:00.000Z	62 \| moderate	14.708 \| fine	65.549 \| fine	49.813 \| good	2.304 \| good	11.438 \| good	0.238 \| good
2026-10-23T20:00:00.000Z	60 \| moderate	14.127 \| fine	63.41 \| fine	51.669 \| good	2.18 \| good	10.19 \| good	0.229 \| good
2026-10-23T21:00:00.000Z	60 \| moderate	14.217 \| fine	63.133 \| fine	50.417 \| good	2.115 \| good	10.267 \| good	0.225 \| good
2026-10-23T22:00:00.000Z	60 \| moderate	14.402 \| fine	64.61 \| fine	44.729 \| good	1.994 \| good	15.671 \| good	0.246 \| good
2026-10-23T23:00:00.000Z	60 \| moderate	13.746 \| fine	62.187 \| fine	42.218 \| good	1.997 \| good	24.493 \| good	0.279 \| good
2026-10-24T00:00:00.000Z	60 \| moderate	13.839 \| fine	62.216 \| fine	30.911 \| good	2.05 \| good	30.095 \| good	0.292 \| good
2026-10-24T01:00:00.000Z	60 \| moderate	13.92 \| fine	62.286 \| fine	21.003 \| good	2.053 \| good	31.397 \| good	0.28 \| good
2026-10-24T02:00:00.000Z	62 \| moderate	14.951 \| fine	66.728 \| fine	16.96 \| good	2.008 \| good	31.535 \| good	0.269 \| good
2026-10-24T03:00:00.000Z	62 \| moderate	15.077 \| fine	66.966 \| fine	20.42 \| good	1.948 \| good	30.504 \| good	0.261 \| good
2026-10-24T04:00:00.000Z	58 \| moderate	13.488 \| fine	60.901 \| fine	20.725 \| good	1.889 \| good	27.836 \| good	0.255 \| good
2026-10-24T05:00:00.000Z	58 \| moderate	12.903 \| fine	57.333 \| fine	20.719 \| good	1.8 \| good	22.587 \| good	0.247 \| good
2026-10-24T06:00:00.000Z	56 \| moderate	12.307 \| fine	55.225 \| fine	21.038 \| good	1.735 \| good	18.017 \| good	0.24 \| good
2026-10-24T07:00:00.000Z	56 \| moderate	12.199 \| fine	55.152 \| fine	18.977 \| good	1.67 \| good	14.809 \| good	0.234 \| good
2026-10-24T08:00:00.000Z	54 \| moderate	11.435 \| good	50.288 \| good	20.351 \| good	1.611 \| good	12.715 \| good	0.23 \| good
2026-10-24T09:00:00.000Z	54 \| moderate	11.169 \| good	49.283 \| good	16.67 \| good	1.556 \| good	11.568 \| good	0.229 \| good
2026-10-24T10:00:00.000Z	52 \| moderate	10.333 \| good	45.337 \| good	15.538 \| good	1.529 \| good	11.274 \| good	0.229 \| good
2026-10-24T11:00:00.000Z	54 \| moderate	11.031 \| good	48.37 \| good	15.24 \| good	1.548 \| good	12.033 \| good	0.232 \| good
2026-10-24T12:00:00.000Z	58 \| moderate	12.697 \| fine	57.212 \| fine	14.799 \| good	1.624 \| good	15.726 \| good	0.24 \| good
2026-10-24T13:00:00.000Z	60 \| moderate	14.334 \| fine	63.461 \| fine	17.064 \| good	1.707 \| good	17.368 \| good	0.253 \| good
2026-10-24T14:00:00.000Z	66 \| moderate	16.863 \| fine	75.224 \| fine	26.004 \| good	1.753 \| good	16.559 \| good	0.265 \| good
2026-10-24T15:00:00.000Z	62 \| moderate	14.601 \| fine	65.357 \| fine	36.82 \| good	1.812 \| good	15.48 \| good	0.263 \| good
2026-10-24T16:00:00.000Z	58 \| moderate	12.851 \| fine	57.496 \| fine	45.284 \| good	1.837 \| good	14.707 \| good	0.259 \| good
2026-10-24T17:00:00.000Z	56 \| moderate	11.615 \| good	51.451 \| good	46.073 \| good	1.849 \| good	14.077 \| good	0.255 \| good
2026-10-24T18:00:00.000Z	54 \| moderate	10.594 \| good	46.526 \| good	48.676 \| good	1.858 \| good	12.68 \| good	0.246 \| good
2026-10-24T19:00:00.000Z	54 \| moderate	10.728 \| good	47.448 \| good	52.475 \| good	1.809 \| good	11.095 \| good	0.235 \| good
2026-10-24T20:00:00.000Z	54 \| moderate	11.351 \| good	50.29 \| good	54.628 \| good	1.85 \| good	10.691 \| good	0.227 \| good
2026-10-24T21:00:00.000Z	56 \| moderate	12.449 \| fine	56.771 \| fine	52.798 \| good	1.835 \| good	11.753 \| good	0.226 \| good
2026-10-24T22:00:00.000Z	54 \| moderate	10.826 \| good	47.967 \| good	51.816 \| good	1.787 \| good	15.188 \| good	0.236 \| good

Northbrook

Get reliable air quality data to drive your business

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

0.26ppm

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 Northbrook, Illinois?

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

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

In the past 24 hours, the air quality in Northbrook, Illinois was at its worst at 02:00:00 on 2026-10-22.

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

In the last 24 hours, the best air quality in Northbrook, Illinois was observed at 03:00:00 on 2026-10-22.

What is the AQI in Northbrook, Illinois right now?

As of now, the AQI in Northbrook, Illinois is 66, indicating Moderate conditions.

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

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

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

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

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

PM_2.5 levels in Northbrook, Illinois are currently 16.892 μg/m³.

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

The PM₁₀ concentration in Northbrook, Illinois is 39.868 μg/m³ at the moment.

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

The current carbon monoxide (CO) concentration in Northbrook, Illinois is 0.261 ppm.

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

Currently, Northbrook, Illinois has a sulfur dioxide (SO₂) concentration of 1.328 ppb.

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

The current ozone (O₃) level in Northbrook, Illinois at the moment is 45.353 ppm.

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

Nitrogen dioxide (NO₂) level in Northbrook, Illinois at the moment is 8.648 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-20T23:00:00.000Z	44 \| good	6.385 \| good	19.838 \| good	46.832 \| good	2.462 \| good	25.398 \| good	0.237 \| good
2026-10-21T00:00:00.000Z	43 \| good	6.796 \| good	18.364 \| good	46.171 \| good	0.798 \| good	24.459 \| good	0.275 \| good
2026-10-21T01:00:00.000Z	38 \| good	7.45 \| good	19.879 \| good	40.9 \| good	0.643 \| good	30.435 \| good	0.289 \| good
2026-10-21T02:00:00.000Z	49 \| good	8.626 \| good	20.159 \| good	34.442 \| good	0.592 \| good	26.504 \| good	0.304 \| good
2026-10-21T03:00:00.000Z	52 \| moderate	9.818 \| good	43.405 \| good	13.32 \| good	2.528 \| good	33.756 \| good	0.282 \| good
2026-10-21T04:00:00.000Z	58 \| moderate	12.86 \| fine	27.681 \| good	19.333 \| good	0.601 \| good	23.162 \| good	0.328 \| good
2026-10-21T05:00:00.000Z	58 \| moderate	13.443 \| fine	27.792 \| good	12.529 \| good	1.526 \| good	23.087 \| good	0.301 \| good
2026-10-21T06:00:00.000Z	60 \| moderate	13.636 \| fine	27.954 \| good	7.8 \| good	1.955 \| good	22.779 \| good	0.29 \| good
2026-10-21T07:00:00.000Z	58 \| moderate	12.994 \| fine	27.707 \| good	6.909 \| good	1.67 \| good	19.041 \| good	0.304 \| good
2026-10-21T08:00:00.000Z	58 \| moderate	12.965 \| fine	28.41 \| good	4.879 \| good	0.921 \| good	19.24 \| good	0.266 \| good
2026-10-21T09:00:00.000Z	58 \| moderate	13 \| fine	27.584 \| good	6.75 \| good	0.879 \| good	19.727 \| good	0.252 \| good
2026-10-21T10:00:00.000Z	60 \| moderate	14.187 \| fine	30.942 \| good	6.262 \| good	0.925 \| good	21.458 \| good	0.304 \| good
2026-10-21T11:00:00.000Z	60 \| moderate	14.363 \| fine	32.054 \| good	3.714 \| good	0.986 \| good	23.635 \| good	0.38 \| good
2026-10-21T12:00:00.000Z	69 \| moderate	18.748 \| fine	43.89 \| good	4.599 \| good	0.958 \| good	22.313 \| good	0.392 \| good
2026-10-21T13:00:00.000Z	67 \| moderate	18.489 \| fine	43.964 \| good	2.373 \| good	0.987 \| good	17.39 \| good	0.392 \| good
2026-10-21T14:00:00.000Z	84 \| moderate	26.799 \| fine	79.113 \| fine	4.599 \| good	1.163 \| good	24.649 \| good	0.475 \| good
2026-10-21T15:00:00.000Z	84 \| moderate	27.137 \| fine	84.311 \| fine	7.318 \| good	1.613 \| good	23.174 \| good	0.427 \| good
2026-10-21T16:00:00.000Z	84 \| moderate	27.208 \| fine	77.094 \| fine	9.617 \| good	1.981 \| good	21.368 \| good	0.328 \| good
2026-10-21T17:00:00.000Z	75 \| moderate	21.758 \| fine	69.814 \| fine	13.982 \| good	1.91 \| good	18.986 \| good	0.272 \| good
2026-10-21T18:00:00.000Z	64 \| moderate	15.977 \| fine	57.122 \| fine	23.743 \| good	1.999 \| good	17.255 \| good	0.261 \| good
2026-10-21T19:00:00.000Z	64 \| moderate	15.997 \| fine	56.754 \| fine	28.578 \| good	1.297 \| good	17.54 \| good	0.261 \| good
2026-10-21T20:00:00.000Z	54 \| moderate	10.948 \| good	40.074 \| good	38.526 \| good	1.299 \| good	15.589 \| good	0.261 \| good
2026-10-21T21:00:00.000Z	54 \| moderate	10.958 \| good	39.616 \| good	42.642 \| good	1.477 \| good	16.338 \| good	0.261 \| good
2026-10-21T22:00:00.000Z	56 \| moderate	12.031 \| good	39.038 \| good	44.252 \| good	1.684 \| good	16.493 \| good	0.261 \| good
2026-10-21T23:00:00.000Z	60 \| moderate	13.716 \| fine	42.4 \| good	41.869 \| good	2.114 \| good	24.46 \| good	0.275 \| good
2026-10-22T00:00:00.000Z	60 \| moderate	13.837 \| fine	45.364 \| good	39.272 \| good	1.522 \| good	15.689 \| good	0.339 \| good
2026-10-22T01:00:00.000Z	62 \| moderate	15.31 \| fine	46.513 \| good	35.552 \| good	1.065 \| good	22.104 \| good	0.377 \| good
2026-10-22T02:00:00.000Z	60 \| moderate	13.979 \| fine	45.189 \| good	31.99 \| good	0.848 \| good	32.679 \| good	0.403 \| good
2026-10-22T03:00:00.000Z	38 \| good	6.656 \| good	30.08 \| good	15.374 \| good	2.714 \| good	40.121 \| good	0.461 \| good
2026-10-22T04:00:00.000Z	58 \| moderate	12.852 \| fine	41.549 \| good	25.589 \| good	1.487 \| good	32.121 \| good	0.455 \| good
2026-10-22T05:00:00.000Z	60 \| moderate	13.866 \| fine	42.282 \| good	18.012 \| good	1.214 \| good	30.742 \| good	0.414 \| good
2026-10-22T06:00:00.000Z	62 \| moderate	14.908 \| fine	44.893 \| good	12.884 \| good	1.141 \| good	25.489 \| good	0.403 \| good
2026-10-22T07:00:00.000Z	62 \| moderate	14.876 \| fine	44.338 \| good	5.065 \| good	1.151 \| good	24.074 \| good	0.403 \| good
2026-10-22T08:00:00.000Z	64 \| moderate	16.047 \| fine	46.197 \| good	4.065 \| good	1.067 \| good	24.815 \| good	0.35 \| good
2026-10-22T09:00:00.000Z	64 \| moderate	15.969 \| fine	44.769 \| good	1.431 \| good	1.038 \| good	23.394 \| good	0.336 \| good
2026-10-22T10:00:00.000Z	62 \| moderate	15.35 \| fine	39.028 \| good	2.494 \| good	0.894 \| good	19.727 \| good	0.324 \| good
2026-10-22T11:00:00.000Z	62 \| moderate	15.277 \| fine	37.511 \| good	3.6 \| good	0.871 \| good	18.532 \| good	0.434 \| good
2026-10-22T12:00:00.000Z	62 \| moderate	15.299 \| fine	38.412 \| good	3.744 \| good	0.868 \| good	20.286 \| good	0.481 \| good
2026-10-22T13:00:00.000Z	62 \| moderate	14.817 \| fine	36.328 \| good	4.309 \| good	1.005 \| good	19.843 \| good	0.458 \| good
2026-10-22T14:00:00.000Z	67 \| moderate	18.015 \| fine	38.043 \| good	4.605 \| good	1.249 \| good	19.172 \| good	0.507 \| good
2026-10-22T15:00:00.000Z	66 \| moderate	16.805 \| fine	42.206 \| good	8.589 \| good	1.443 \| good	21.611 \| good	0.496 \| good
2026-10-22T16:00:00.000Z	62 \| moderate	14.985 \| fine	41.253 \| good	16.182 \| good	1.56 \| good	23.683 \| good	0.333 \| good
2026-10-22T17:00:00.000Z	62 \| moderate	15.078 \| fine	41.771 \| good	30.753 \| good	1.866 \| good	23.559 \| good	0.301 \| good
2026-10-22T18:00:00.000Z	62 \| moderate	15.254 \| fine	41.623 \| good	32.738 \| good	1.534 \| good	25.64 \| good	0.252 \| good
2026-10-22T19:00:00.000Z	64 \| moderate	15.806 \| fine	40.928 \| good	37.648 \| good	2.337 \| good	17.346 \| good	0.223 \| good
2026-10-22T20:00:00.000Z	64 \| moderate	16.052 \| fine	39.994 \| good	42.272 \| good	1.761 \| good	9.58 \| good	0.223 \| good
2026-10-22T21:00:00.000Z	64 \| moderate	15.66 \| fine	38.619 \| good	46.046 \| good	1.712 \| good	6.506 \| good	0.261 \| good
2026-10-22T22:00:00.000Z	66 \| moderate	16.892 \| fine	39.868 \| good	45.353 \| good	1.328 \| good	8.648 \| good	0.261 \| good
2026-10-22T22:00:00.000Z	66 \| moderate	16.892 \| fine	39.868 \| good	45.353 \| good	1.328 \| good	8.648 \| good	0.261 \| good
2026-10-22T23:00:00.000Z	64 \| moderate	16.39 \| fine	72.943 \| fine	47.841 \| good	1.556 \| good	38.507 \| good	0.378 \| good
2026-10-23T00:00:00.000Z	58 \| moderate	13.284 \| fine	60.47 \| fine	38.699 \| good	1.727 \| good	43.543 \| good	0.435 \| good
2026-10-23T01:00:00.000Z	54 \| moderate	11.292 \| good	49.858 \| good	33.601 \| good	1.831 \| good	44.49 \| good	0.442 \| good
2026-10-23T02:00:00.000Z	52 \| moderate	9.696 \| good	42.889 \| good	27.312 \| good	1.949 \| good	45.205 \| good	0.436 \| good
2026-10-23T03:00:00.000Z	52 \| moderate	9.56 \| good	42.731 \| good	24.016 \| good	2.088 \| good	45.13 \| good	0.432 \| good
2026-10-23T04:00:00.000Z	44 \| good	8.207 \| good	36.102 \| good	23.102 \| good	2.197 \| good	44.717 \| good	0.434 \| good
2026-10-23T05:00:00.000Z	42 \| good	7.375 \| good	32.242 \| good	21.592 \| good	2.181 \| good	43.863 \| good	0.433 \| good
2026-10-23T06:00:00.000Z	44 \| good	8.155 \| good	36.026 \| good	19.516 \| good	2.144 \| good	42.711 \| good	0.418 \| good
2026-10-23T07:00:00.000Z	52 \| moderate	9.693 \| good	43.143 \| good	18.08 \| good	2.218 \| good	41.533 \| good	0.403 \| good
2026-10-23T08:00:00.000Z	56 \| moderate	11.804 \| good	52.293 \| good	19.233 \| good	2.354 \| good	40.426 \| good	0.393 \| good
2026-10-23T09:00:00.000Z	64 \| moderate	15.841 \| fine	70.771 \| fine	13.058 \| good	2.528 \| good	39.308 \| good	0.384 \| good
2026-10-23T10:00:00.000Z	75 \| moderate	21.659 \| fine	94.466 \| fine	8.019 \| good	2.784 \| good	38.2 \| good	0.376 \| good
2026-10-23T11:00:00.000Z	82 \| moderate	26.179 \| fine	114.206 \| fine	1.518 \| good	3.005 \| good	37.335 \| good	0.373 \| good
2026-10-23T12:00:00.000Z	88 \| moderate	29.067 \| fine	126.309 \| fine	0.535 \| good	3.301 \| good	36.692 \| good	0.385 \| good
2026-10-23T13:00:00.000Z	90 \| moderate	29.688 \| fine	128.867 \| fine	1.141 \| good	3.536 \| good	33.423 \| good	0.418 \| good
2026-10-23T14:00:00.000Z	81 \| moderate	25.104 \| fine	109.536 \| fine	6.65 \| good	3.297 \| good	28.781 \| good	0.414 \| good
2026-10-23T15:00:00.000Z	73 \| moderate	20.519 \| fine	89.761 \| fine	19.198 \| good	3.096 \| good	26.181 \| good	0.389 \| good
2026-10-23T16:00:00.000Z	69 \| moderate	18.785 \| fine	83.456 \| fine	30.245 \| good	2.836 \| good	22.82 \| good	0.332 \| good
2026-10-23T17:00:00.000Z	66 \| moderate	16.933 \| fine	75.39 \| fine	37.51 \| good	2.526 \| good	18.897 \| good	0.288 \| good
2026-10-23T18:00:00.000Z	62 \| moderate	15.34 \| fine	69.209 \| fine	44.67 \| good	2.416 \| good	14.335 \| good	0.254 \| good
2026-10-23T19:00:00.000Z	62 \| moderate	14.708 \| fine	65.549 \| fine	49.813 \| good	2.304 \| good	11.438 \| good	0.238 \| good
2026-10-23T20:00:00.000Z	60 \| moderate	14.127 \| fine	63.41 \| fine	51.669 \| good	2.18 \| good	10.19 \| good	0.229 \| good
2026-10-23T21:00:00.000Z	60 \| moderate	14.217 \| fine	63.133 \| fine	50.417 \| good	2.115 \| good	10.267 \| good	0.225 \| good
2026-10-23T22:00:00.000Z	60 \| moderate	14.402 \| fine	64.61 \| fine	44.729 \| good	1.994 \| good	15.671 \| good	0.246 \| good
2026-10-23T23:00:00.000Z	60 \| moderate	13.746 \| fine	62.187 \| fine	42.218 \| good	1.997 \| good	24.493 \| good	0.279 \| good
2026-10-24T00:00:00.000Z	60 \| moderate	13.839 \| fine	62.216 \| fine	30.911 \| good	2.05 \| good	30.095 \| good	0.292 \| good
2026-10-24T01:00:00.000Z	60 \| moderate	13.92 \| fine	62.286 \| fine	21.003 \| good	2.053 \| good	31.397 \| good	0.28 \| good
2026-10-24T02:00:00.000Z	62 \| moderate	14.951 \| fine	66.728 \| fine	16.96 \| good	2.008 \| good	31.535 \| good	0.269 \| good
2026-10-24T03:00:00.000Z	62 \| moderate	15.077 \| fine	66.966 \| fine	20.42 \| good	1.948 \| good	30.504 \| good	0.261 \| good
2026-10-24T04:00:00.000Z	58 \| moderate	13.488 \| fine	60.901 \| fine	20.725 \| good	1.889 \| good	27.836 \| good	0.255 \| good
2026-10-24T05:00:00.000Z	58 \| moderate	12.903 \| fine	57.333 \| fine	20.719 \| good	1.8 \| good	22.587 \| good	0.247 \| good
2026-10-24T06:00:00.000Z	56 \| moderate	12.307 \| fine	55.225 \| fine	21.038 \| good	1.735 \| good	18.017 \| good	0.24 \| good
2026-10-24T07:00:00.000Z	56 \| moderate	12.199 \| fine	55.152 \| fine	18.977 \| good	1.67 \| good	14.809 \| good	0.234 \| good
2026-10-24T08:00:00.000Z	54 \| moderate	11.435 \| good	50.288 \| good	20.351 \| good	1.611 \| good	12.715 \| good	0.23 \| good
2026-10-24T09:00:00.000Z	54 \| moderate	11.169 \| good	49.283 \| good	16.67 \| good	1.556 \| good	11.568 \| good	0.229 \| good
2026-10-24T10:00:00.000Z	52 \| moderate	10.333 \| good	45.337 \| good	15.538 \| good	1.529 \| good	11.274 \| good	0.229 \| good
2026-10-24T11:00:00.000Z	54 \| moderate	11.031 \| good	48.37 \| good	15.24 \| good	1.548 \| good	12.033 \| good	0.232 \| good
2026-10-24T12:00:00.000Z	58 \| moderate	12.697 \| fine	57.212 \| fine	14.799 \| good	1.624 \| good	15.726 \| good	0.24 \| good
2026-10-24T13:00:00.000Z	60 \| moderate	14.334 \| fine	63.461 \| fine	17.064 \| good	1.707 \| good	17.368 \| good	0.253 \| good
2026-10-24T14:00:00.000Z	66 \| moderate	16.863 \| fine	75.224 \| fine	26.004 \| good	1.753 \| good	16.559 \| good	0.265 \| good
2026-10-24T15:00:00.000Z	62 \| moderate	14.601 \| fine	65.357 \| fine	36.82 \| good	1.812 \| good	15.48 \| good	0.263 \| good
2026-10-24T16:00:00.000Z	58 \| moderate	12.851 \| fine	57.496 \| fine	45.284 \| good	1.837 \| good	14.707 \| good	0.259 \| good
2026-10-24T17:00:00.000Z	56 \| moderate	11.615 \| good	51.451 \| good	46.073 \| good	1.849 \| good	14.077 \| good	0.255 \| good
2026-10-24T18:00:00.000Z	54 \| moderate	10.594 \| good	46.526 \| good	48.676 \| good	1.858 \| good	12.68 \| good	0.246 \| good
2026-10-24T19:00:00.000Z	54 \| moderate	10.728 \| good	47.448 \| good	52.475 \| good	1.809 \| good	11.095 \| good	0.235 \| good
2026-10-24T20:00:00.000Z	54 \| moderate	11.351 \| good	50.29 \| good	54.628 \| good	1.85 \| good	10.691 \| good	0.227 \| good
2026-10-24T21:00:00.000Z	56 \| moderate	12.449 \| fine	56.771 \| fine	52.798 \| good	1.835 \| good	11.753 \| good	0.226 \| good
2026-10-24T22:00:00.000Z	54 \| moderate	10.826 \| good	47.967 \| good	51.816 \| good	1.787 \| good	15.188 \| good	0.236 \| good

Live air quality index in Northbrook, Illinois today

Major air pollutants in Northbrook, Illinois

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Air quality in nearby cities

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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 nitrogen dioxide (NO₂) level in Northbrook, Illinois at the moment?