What is the current concentration of PM10 in Arlington Heights, Illinois?

The current PM10 concentration at Arlington Heights, Illinois is 50.671 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Arlington Heights, Illinois?

The current sulfur dioxide (SO2) concentration at Arlington Heights, Illinois is 1.805 ppb.

What is the current concentration of ozone (O3) in Arlington Heights, Illinois?

The current ozone (O3) concentration at Arlington Heights, Illinois is 48.086 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Arlington Heights, Illinois?

The current nitrogen dioxide (NO2) concentration at Arlington Heights, Illinois is 6.731 ppb.

Arlington Heights, Illinois live air quality index now

Q: What is the current concentration of PM2.5 in Arlington Heights, Illinois?

The current PM2.5 concentration at Arlington Heights, Illinois is 10.818 μg/m3.

Stay updated with real-time air quality in Arlington Heights, 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

Arlington Heights, Illinois

Last updated: ... (Local time)

Major air pollutants in Arlington Heights, Illinois

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

10.82 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

50.67 μg/m³

155

255

425

605+

Ozone (O₃)

48.09 ppb

201

201+

Sulfur Dioxide (SO₂)

1.80 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

6.73 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.26 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Arlington Heights, Illinois

Get Live Pollen Counts

Arlington Heights, Illinois

Scroll To Air Quality Map

Track live Arlington Heights, Illinois air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-20T22:00:00.000Z	49 \| good	9.424 \| good	36.166 \| good	30.137 \| good	7.368 \| good	5.086 \| good	0.222 \| good
2026-10-20T23:00:00.000Z	44 \| good	7.838 \| good	23.548 \| good	37.656 \| good	3.597 \| good	25.252 \| good	0.235 \| good
2026-10-21T00:00:00.000Z	44 \| good	8.124 \| good	31.161 \| good	37.658 \| good	0.968 \| good	24.487 \| good	0.273 \| good
2026-10-21T01:00:00.000Z	52 \| moderate	10.271 \| good	45.21 \| good	29.922 \| good	0.711 \| good	30.153 \| good	0.286 \| good
2026-10-21T02:00:00.000Z	38 \| good	7.092 \| good	21.896 \| good	26.073 \| good	0.597 \| good	30.427 \| good	0.299 \| good
2026-10-21T03:00:00.000Z	60 \| moderate	14 \| fine	63.594 \| fine	3.058 \| good	3.163 \| good	44.106 \| good	0.328 \| good
2026-10-21T04:00:00.000Z	54 \| moderate	10.595 \| good	45.173 \| good	11.229 \| good	0.558 \| good	27.772 \| good	0.322 \| good
2026-10-21T05:00:00.000Z	58 \| moderate	12.875 \| fine	52.879 \| good	8.864 \| good	1.321 \| good	23.94 \| good	0.297 \| good
2026-10-21T06:00:00.000Z	62 \| moderate	14.947 \| fine	70.275 \| fine	4.045 \| good	1.691 \| good	22.192 \| good	0.285 \| good
2026-10-21T07:00:00.000Z	64 \| moderate	15.797 \| fine	51.192 \| good	5.952 \| good	1.454 \| good	18.41 \| good	0.298 \| good
2026-10-21T08:00:00.000Z	64 \| moderate	16.42 \| fine	49.073 \| good	3.964 \| good	0.844 \| good	19.884 \| good	0.261 \| good
2026-10-21T09:00:00.000Z	62 \| moderate	15.147 \| fine	66.274 \| fine	8.969 \| good	0.812 \| good	19.366 \| good	0.248 \| good
2026-10-21T10:00:00.000Z	71 \| moderate	20.384 \| fine	84.569 \| fine	6.439 \| good	0.87 \| good	20.728 \| good	0.298 \| good
2026-10-21T11:00:00.000Z	73 \| moderate	21.206 \| fine	85.482 \| fine	2.172 \| good	0.939 \| good	23.449 \| good	0.373 \| good
2026-10-21T12:00:00.000Z	82 \| moderate	25.167 \| fine	118.105 \| fine	5.536 \| good	0.912 \| good	22.2 \| good	0.385 \| good
2026-10-21T13:00:00.000Z	78 \| moderate	21.532 \| fine	109.479 \| fine	4.976 \| good	0.948 \| good	17.668 \| good	0.385 \| good
2026-10-21T14:00:00.000Z	81 \| moderate	24.588 \| fine	100.954 \| fine	6.75 \| good	1.156 \| good	24.7 \| good	0.467 \| good
2026-10-21T15:00:00.000Z	79 \| moderate	24.355 \| fine	109.386 \| fine	13.111 \| good	1.57 \| good	23.141 \| good	0.42 \| good
2026-10-21T16:00:00.000Z	79 \| moderate	23.522 \| fine	92.611 \| fine	14.754 \| good	1.899 \| good	21.356 \| good	0.323 \| good
2026-10-21T17:00:00.000Z	67 \| moderate	18.434 \| fine	69.784 \| fine	21.279 \| good	1.778 \| good	19.045 \| good	0.271 \| good
2026-10-21T18:00:00.000Z	60 \| moderate	13.528 \| fine	57.61 \| fine	26.907 \| good	1.739 \| good	17.785 \| good	0.259 \| good
2026-10-21T19:00:00.000Z	60 \| moderate	13.867 \| fine	60.184 \| fine	32.597 \| good	1.151 \| good	18.185 \| good	0.259 \| good
2026-10-21T20:00:00.000Z	44 \| good	8.499 \| good	38.216 \| good	40.12 \| good	1.2 \| good	12.861 \| good	0.259 \| good
2026-10-21T21:00:00.000Z	49 \| good	8.647 \| good	29.913 \| good	43.576 \| good	1.339 \| good	11.243 \| good	0.259 \| good
2026-10-21T22:00:00.000Z	39 \| good	5.579 \| good	28.29 \| good	42.174 \| good	1.538 \| good	16.752 \| good	0.259 \| good
2026-10-21T23:00:00.000Z	44 \| good	7.423 \| good	25.053 \| good	47.178 \| good	1.972 \| good	24.723 \| good	0.272 \| good
2026-10-22T00:00:00.000Z	44 \| good	8.444 \| good	34.265 \| good	33.222 \| good	1.462 \| good	18.829 \| good	0.335 \| good
2026-10-22T01:00:00.000Z	54 \| moderate	10.983 \| good	39.371 \| good	39.168 \| good	1.061 \| good	20.69 \| good	0.373 \| good
2026-10-22T02:00:00.000Z	56 \| moderate	11.915 \| good	43.653 \| good	36.485 \| good	0.856 \| good	23.207 \| good	0.397 \| good
2026-10-22T03:00:00.000Z	41 \| good	5.926 \| good	26.884 \| good	18.425 \| good	2.959 \| good	43.451 \| good	0.516 \| good
2026-10-22T04:00:00.000Z	58 \| moderate	12.814 \| fine	43.029 \| good	24.389 \| good	1.498 \| good	30.526 \| good	0.447 \| good
2026-10-22T05:00:00.000Z	62 \| moderate	15.397 \| fine	60.072 \| fine	21.697 \| good	1.211 \| good	30.873 \| good	0.409 \| good
2026-10-22T06:00:00.000Z	64 \| moderate	15.929 \| fine	65.563 \| fine	11.406 \| good	1.12 \| good	27.398 \| good	0.404 \| good
2026-10-22T07:00:00.000Z	64 \| moderate	15.618 \| fine	63.567 \| fine	9.422 \| good	1.084 \| good	26.685 \| good	0.404 \| good
2026-10-22T08:00:00.000Z	62 \| moderate	15.424 \| fine	61.605 \| fine	11.658 \| good	0.998 \| good	21.25 \| good	0.348 \| good
2026-10-22T09:00:00.000Z	64 \| moderate	16.142 \| fine	72.519 \| fine	8.706 \| good	0.953 \| good	18.726 \| good	0.335 \| good
2026-10-22T10:00:00.000Z	62 \| moderate	15.001 \| fine	65.804 \| fine	4.25 \| good	0.8 \| good	17.867 \| good	0.322 \| good
2026-10-22T11:00:00.000Z	64 \| moderate	15.936 \| fine	52.693 \| good	8.277 \| good	0.781 \| good	16.784 \| good	0.43 \| good
2026-10-22T12:00:00.000Z	62 \| moderate	15.267 \| fine	39.74 \| good	9.347 \| good	0.78 \| good	19.027 \| good	0.527 \| good
2026-10-22T13:00:00.000Z	66 \| moderate	16.944 \| fine	60.522 \| fine	11.25 \| good	0.929 \| good	19.349 \| good	0.449 \| good
2026-10-22T14:00:00.000Z	67 \| moderate	17.659 \| fine	35.993 \| good	6.858 \| good	1.24 \| good	19.352 \| good	0.498 \| good
2026-10-22T15:00:00.000Z	64 \| moderate	16.238 \| fine	43.734 \| good	10.663 \| good	1.466 \| good	21.807 \| good	0.487 \| good
2026-10-22T16:00:00.000Z	64 \| moderate	15.956 \| fine	59.899 \| fine	18.18 \| good	1.587 \| good	22.308 \| good	0.325 \| good
2026-10-22T17:00:00.000Z	60 \| moderate	13.938 \| fine	52.445 \| good	24.628 \| good	1.946 \| good	21.678 \| good	0.298 \| good
2026-10-22T18:00:00.000Z	58 \| moderate	12.522 \| fine	50.148 \| good	28.342 \| good	1.582 \| good	19.008 \| good	0.248 \| good
2026-10-22T19:00:00.000Z	56 \| moderate	11.894 \| good	53.299 \| good	30.169 \| good	2.435 \| good	22.335 \| good	0.222 \| good
2026-10-22T20:00:00.000Z	54 \| moderate	10.548 \| good	38.762 \| good	36.004 \| good	1.825 \| good	10.936 \| good	0.222 \| good
2026-10-22T21:00:00.000Z	54 \| moderate	11.286 \| good	54.454 \| good	45.64 \| good	1.789 \| good	6.761 \| good	0.259 \| good
2026-10-22T21:00:00.000Z	54 \| moderate	10.818 \| good	50.671 \| good	48.086 \| good	1.805 \| good	6.731 \| good	0.259 \| good
2026-10-22T22:00:00.000Z	54 \| moderate	10.966 \| good	48.709 \| good	43.989 \| good	1.874 \| good	25.976 \| good	0.287 \| good
2026-10-22T23:00:00.000Z	62 \| moderate	14.829 \| fine	66.646 \| fine	32.292 \| good	1.962 \| good	43.254 \| good	0.398 \| good
2026-10-23T00:00:00.000Z	62 \| moderate	15.27 \| fine	67.77 \| fine	21.051 \| good	2.237 \| good	49.736 \| good	0.478 \| good
2026-10-23T01:00:00.000Z	64 \| moderate	16.036 \| fine	71.899 \| fine	15.235 \| good	2.394 \| good	51.041 \| good	0.491 \| good
2026-10-23T02:00:00.000Z	64 \| moderate	15.652 \| fine	69.859 \| fine	9.613 \| good	2.566 \| good	52.219 \| good	0.487 \| good
2026-10-23T03:00:00.000Z	64 \| moderate	16.02 \| fine	71.815 \| fine	6.678 \| good	2.747 \| good	52.28 \| good	0.485 \| good
2026-10-23T04:00:00.000Z	60 \| moderate	14.12 \| fine	63.737 \| fine	6.816 \| good	2.882 \| good	51.762 \| good	0.489 \| good
2026-10-23T05:00:00.000Z	58 \| moderate	12.866 \| fine	57.823 \| fine	6.019 \| good	2.837 \| good	50.813 \| good	0.488 \| good
2026-10-23T06:00:00.000Z	58 \| moderate	12.952 \| fine	58.006 \| fine	6.475 \| good	2.735 \| good	49.612 \| good	0.468 \| good
2026-10-23T07:00:00.000Z	60 \| moderate	14.071 \| fine	63.557 \| fine	8.124 \| good	2.774 \| good	48.264 \| good	0.445 \| good
2026-10-23T08:00:00.000Z	66 \| moderate	16.611 \| fine	74.181 \| fine	8.917 \| good	2.917 \| good	46.813 \| good	0.428 \| good
2026-10-23T09:00:00.000Z	73 \| moderate	20.723 \| fine	90.566 \| fine	5.685 \| good	3.113 \| good	45.154 \| good	0.412 \| good
2026-10-23T10:00:00.000Z	81 \| moderate	25.498 \| fine	111.533 \| fine	3.524 \| good	3.4 \| good	43.412 \| good	0.4 \| good
2026-10-23T11:00:00.000Z	84 \| moderate	27.373 \| fine	119.122 \| fine	0.93 \| good	3.652 \| good	41.747 \| good	0.395 \| good
2026-10-23T12:00:00.000Z	86 \| moderate	27.633 \| fine	120.759 \| fine	0.322 \| good	3.947 \| good	40.261 \| good	0.41 \| good
2026-10-23T13:00:00.000Z	84 \| moderate	26.954 \| fine	116.791 \| fine	3.033 \| good	4.171 \| good	36.437 \| good	0.454 \| good
2026-10-23T14:00:00.000Z	77 \| moderate	23.167 \| fine	101.156 \| fine	11.809 \| good	3.71 \| good	31.062 \| good	0.443 \| good
2026-10-23T15:00:00.000Z	71 \| moderate	19.948 \| fine	87.486 \| fine	23.354 \| good	3.334 \| good	27.714 \| good	0.405 \| good
2026-10-23T16:00:00.000Z	69 \| moderate	18.501 \| fine	81.486 \| fine	32.825 \| good	2.843 \| good	23.37 \| good	0.329 \| good
2026-10-23T17:00:00.000Z	64 \| moderate	16.44 \| fine	72.994 \| fine	40.932 \| good	2.407 \| good	18.192 \| good	0.271 \| good
2026-10-23T18:00:00.000Z	62 \| moderate	15.11 \| fine	67.156 \| fine	47.607 \| good	2.364 \| good	12.41 \| good	0.23 \| good
2026-10-23T19:00:00.000Z	60 \| moderate	13.999 \| fine	62.936 \| fine	52.573 \| good	2.319 \| good	9.057 \| good	0.214 \| good
2026-10-23T20:00:00.000Z	58 \| moderate	12.853 \| fine	58.446 \| fine	54.222 \| good	2.232 \| good	7.909 \| good	0.208 \| good
2026-10-23T21:00:00.000Z	56 \| moderate	11.992 \| good	54.013 \| good	52.08 \| good	2.213 \| good	8.458 \| good	0.208 \| good
2026-10-23T22:00:00.000Z	60 \| moderate	13.815 \| fine	62.217 \| fine	37.404 \| good	2.129 \| good	15.633 \| good	0.238 \| good
2026-10-23T23:00:00.000Z	66 \| moderate	16.817 \| fine	74.753 \| fine	23.78 \| good	2.174 \| good	28.305 \| good	0.29 \| good
2026-10-24T00:00:00.000Z	67 \| moderate	17.934 \| fine	79.248 \| fine	13.756 \| good	2.296 \| good	37.345 \| good	0.314 \| good
2026-10-24T01:00:00.000Z	66 \| moderate	17.453 \| fine	77.224 \| fine	8.364 \| good	2.376 \| good	40.054 \| good	0.303 \| good
2026-10-24T02:00:00.000Z	67 \| moderate	18.06 \| fine	79.308 \| fine	5.852 \| good	2.395 \| good	40.857 \| good	0.291 \| good
2026-10-24T03:00:00.000Z	67 \| moderate	17.76 \| fine	78.898 \| fine	8.116 \| good	2.382 \| good	39.826 \| good	0.281 \| good
2026-10-24T04:00:00.000Z	64 \| moderate	16.162 \| fine	71.183 \| fine	12.328 \| good	2.335 \| good	36.346 \| good	0.272 \| good
2026-10-24T05:00:00.000Z	62 \| moderate	14.507 \| fine	64.659 \| fine	17.708 \| good	2.227 \| good	29.13 \| good	0.261 \| good
2026-10-24T06:00:00.000Z	60 \| moderate	13.668 \| fine	61.149 \| fine	19.626 \| good	2.116 \| good	22.422 \| good	0.249 \| good
2026-10-24T07:00:00.000Z	58 \| moderate	13.101 \| fine	59.111 \| fine	18.621 \| good	1.969 \| good	17.931 \| good	0.24 \| good
2026-10-24T08:00:00.000Z	56 \| moderate	11.793 \| good	52.072 \| good	20.24 \| good	1.834 \| good	15.093 \| good	0.234 \| good
2026-10-24T09:00:00.000Z	56 \| moderate	12.013 \| good	54.067 \| good	17.351 \| good	1.731 \| good	13.613 \| good	0.232 \| good
2026-10-24T10:00:00.000Z	56 \| moderate	11.508 \| good	51.076 \| good	17.298 \| good	1.674 \| good	13.282 \| good	0.233 \| good
2026-10-24T11:00:00.000Z	56 \| moderate	12.255 \| fine	55.258 \| fine	16.143 \| good	1.668 \| good	14.249 \| good	0.236 \| good
2026-10-24T12:00:00.000Z	58 \| moderate	13.455 \| fine	61.156 \| fine	14.177 \| good	1.741 \| good	18.989 \| good	0.246 \| good
2026-10-24T13:00:00.000Z	60 \| moderate	14.441 \| fine	65.205 \| fine	17.019 \| good	1.825 \| good	20.497 \| good	0.262 \| good
2026-10-24T14:00:00.000Z	64 \| moderate	16.296 \| fine	73.157 \| fine	26.564 \| good	1.846 \| good	19.193 \| good	0.279 \| good
2026-10-24T15:00:00.000Z	62 \| moderate	15.045 \| fine	67.274 \| fine	36.016 \| good	1.897 \| good	17.321 \| good	0.273 \| good
2026-10-24T16:00:00.000Z	60 \| moderate	13.574 \| fine	61.274 \| fine	43.043 \| good	1.915 \| good	15.985 \| good	0.264 \| good
2026-10-24T17:00:00.000Z	56 \| moderate	12.141 \| fine	54.42 \| good	45.733 \| good	1.931 \| good	14.968 \| good	0.257 \| good
2026-10-24T18:00:00.000Z	56 \| moderate	11.934 \| good	52.686 \| good	47.641 \| good	1.943 \| good	13.16 \| good	0.245 \| good
2026-10-24T19:00:00.000Z	56 \| moderate	11.962 \| good	53.96 \| good	51.296 \| good	1.91 \| good	11.065 \| good	0.23 \| good
2026-10-24T20:00:00.000Z	56 \| moderate	11.521 \| good	51 \| good	52.626 \| good	1.889 \| good	10.318 \| good	0.22 \| good
2026-10-24T21:00:00.000Z	54 \| moderate	11.363 \| good	50.657 \| good	51.339 \| good	1.881 \| good	11.523 \| good	0.22 \| good

Arlington Heights

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Arlington Heights, Illinois air quality map: Track AQI near you

0.23ppm

How accurate is Illinois, USA air quality data?

Air quality data and pollutant measurements for Illinois, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.

Source: Ambee Data Sources

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Frequently asked questions

How often is the air quality data for Arlington Heights, Illinois updated?

The air quality for Arlington Heights, Illinois is updated every hour.

When was the worst air quality at Arlington Heights, Illinois in the last 24 hrs?

The worst air quality in Arlington Heights, Illinois in the last 24 hours was observed at 02:00:00 on 2026-10-22.

When was the best air quality at Arlington Heights, Illinois in the last 24 hrs?

In the last 24 hrs, the best air quality in Arlington Heights, Illinois was observed at 10:00:00 on 2026-10-21.

What is the current air quality in Arlington Heights, Illinois?

The current air quality in Arlington Heights, Illinois is 54, categorized as Moderate based on real-time data.

What pollutant is the most common in Arlington Heights, Illinois?

The most common pollutant in Arlington Heights, Illinois is PM2.5.

What should I do if the air quality in Arlington Heights, Illinois is poor?

If the air quality in Arlington Heights, Illinois is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Arlington Heights, Illinois?

The current PM_2.5 concentration at Arlington Heights, Illinois is 10.818 μg/m³.

What is the current concentration of PM₁₀ in Arlington Heights, Illinois?

The current PM₁₀ concentration at Arlington Heights, Illinois is 50.671 μg/m³.

What is the current concentration of carbon monoxide (CO) in Arlington Heights, Illinois?

The current carbon monoxide (CO) concentration at Arlington Heights, Illinois is 0.259 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Arlington Heights, Illinois?

The current sulfur dioxide (SO₂) concentration at Arlington Heights, Illinois is 1.805 ppb.

What is the current concentration of ozone (O₃) in Arlington Heights, Illinois?

The current ozone (O₃) concentration at Arlington Heights, Illinois is 48.086 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Arlington Heights, Illinois?

The current nitrogen dioxide (NO₂) concentration at Arlington Heights, Illinois is 6.731 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-20T22:00:00.000Z	49 \| good	9.424 \| good	36.166 \| good	30.137 \| good	7.368 \| good	5.086 \| good	0.222 \| good
2026-10-20T23:00:00.000Z	44 \| good	7.838 \| good	23.548 \| good	37.656 \| good	3.597 \| good	25.252 \| good	0.235 \| good
2026-10-21T00:00:00.000Z	44 \| good	8.124 \| good	31.161 \| good	37.658 \| good	0.968 \| good	24.487 \| good	0.273 \| good
2026-10-21T01:00:00.000Z	52 \| moderate	10.271 \| good	45.21 \| good	29.922 \| good	0.711 \| good	30.153 \| good	0.286 \| good
2026-10-21T02:00:00.000Z	38 \| good	7.092 \| good	21.896 \| good	26.073 \| good	0.597 \| good	30.427 \| good	0.299 \| good
2026-10-21T03:00:00.000Z	60 \| moderate	14 \| fine	63.594 \| fine	3.058 \| good	3.163 \| good	44.106 \| good	0.328 \| good
2026-10-21T04:00:00.000Z	54 \| moderate	10.595 \| good	45.173 \| good	11.229 \| good	0.558 \| good	27.772 \| good	0.322 \| good
2026-10-21T05:00:00.000Z	58 \| moderate	12.875 \| fine	52.879 \| good	8.864 \| good	1.321 \| good	23.94 \| good	0.297 \| good
2026-10-21T06:00:00.000Z	62 \| moderate	14.947 \| fine	70.275 \| fine	4.045 \| good	1.691 \| good	22.192 \| good	0.285 \| good
2026-10-21T07:00:00.000Z	64 \| moderate	15.797 \| fine	51.192 \| good	5.952 \| good	1.454 \| good	18.41 \| good	0.298 \| good
2026-10-21T08:00:00.000Z	64 \| moderate	16.42 \| fine	49.073 \| good	3.964 \| good	0.844 \| good	19.884 \| good	0.261 \| good
2026-10-21T09:00:00.000Z	62 \| moderate	15.147 \| fine	66.274 \| fine	8.969 \| good	0.812 \| good	19.366 \| good	0.248 \| good
2026-10-21T10:00:00.000Z	71 \| moderate	20.384 \| fine	84.569 \| fine	6.439 \| good	0.87 \| good	20.728 \| good	0.298 \| good
2026-10-21T11:00:00.000Z	73 \| moderate	21.206 \| fine	85.482 \| fine	2.172 \| good	0.939 \| good	23.449 \| good	0.373 \| good
2026-10-21T12:00:00.000Z	82 \| moderate	25.167 \| fine	118.105 \| fine	5.536 \| good	0.912 \| good	22.2 \| good	0.385 \| good
2026-10-21T13:00:00.000Z	78 \| moderate	21.532 \| fine	109.479 \| fine	4.976 \| good	0.948 \| good	17.668 \| good	0.385 \| good
2026-10-21T14:00:00.000Z	81 \| moderate	24.588 \| fine	100.954 \| fine	6.75 \| good	1.156 \| good	24.7 \| good	0.467 \| good
2026-10-21T15:00:00.000Z	79 \| moderate	24.355 \| fine	109.386 \| fine	13.111 \| good	1.57 \| good	23.141 \| good	0.42 \| good
2026-10-21T16:00:00.000Z	79 \| moderate	23.522 \| fine	92.611 \| fine	14.754 \| good	1.899 \| good	21.356 \| good	0.323 \| good
2026-10-21T17:00:00.000Z	67 \| moderate	18.434 \| fine	69.784 \| fine	21.279 \| good	1.778 \| good	19.045 \| good	0.271 \| good
2026-10-21T18:00:00.000Z	60 \| moderate	13.528 \| fine	57.61 \| fine	26.907 \| good	1.739 \| good	17.785 \| good	0.259 \| good
2026-10-21T19:00:00.000Z	60 \| moderate	13.867 \| fine	60.184 \| fine	32.597 \| good	1.151 \| good	18.185 \| good	0.259 \| good
2026-10-21T20:00:00.000Z	44 \| good	8.499 \| good	38.216 \| good	40.12 \| good	1.2 \| good	12.861 \| good	0.259 \| good
2026-10-21T21:00:00.000Z	49 \| good	8.647 \| good	29.913 \| good	43.576 \| good	1.339 \| good	11.243 \| good	0.259 \| good
2026-10-21T22:00:00.000Z	39 \| good	5.579 \| good	28.29 \| good	42.174 \| good	1.538 \| good	16.752 \| good	0.259 \| good
2026-10-21T23:00:00.000Z	44 \| good	7.423 \| good	25.053 \| good	47.178 \| good	1.972 \| good	24.723 \| good	0.272 \| good
2026-10-22T00:00:00.000Z	44 \| good	8.444 \| good	34.265 \| good	33.222 \| good	1.462 \| good	18.829 \| good	0.335 \| good
2026-10-22T01:00:00.000Z	54 \| moderate	10.983 \| good	39.371 \| good	39.168 \| good	1.061 \| good	20.69 \| good	0.373 \| good
2026-10-22T02:00:00.000Z	56 \| moderate	11.915 \| good	43.653 \| good	36.485 \| good	0.856 \| good	23.207 \| good	0.397 \| good
2026-10-22T03:00:00.000Z	41 \| good	5.926 \| good	26.884 \| good	18.425 \| good	2.959 \| good	43.451 \| good	0.516 \| good
2026-10-22T04:00:00.000Z	58 \| moderate	12.814 \| fine	43.029 \| good	24.389 \| good	1.498 \| good	30.526 \| good	0.447 \| good
2026-10-22T05:00:00.000Z	62 \| moderate	15.397 \| fine	60.072 \| fine	21.697 \| good	1.211 \| good	30.873 \| good	0.409 \| good
2026-10-22T06:00:00.000Z	64 \| moderate	15.929 \| fine	65.563 \| fine	11.406 \| good	1.12 \| good	27.398 \| good	0.404 \| good
2026-10-22T07:00:00.000Z	64 \| moderate	15.618 \| fine	63.567 \| fine	9.422 \| good	1.084 \| good	26.685 \| good	0.404 \| good
2026-10-22T08:00:00.000Z	62 \| moderate	15.424 \| fine	61.605 \| fine	11.658 \| good	0.998 \| good	21.25 \| good	0.348 \| good
2026-10-22T09:00:00.000Z	64 \| moderate	16.142 \| fine	72.519 \| fine	8.706 \| good	0.953 \| good	18.726 \| good	0.335 \| good
2026-10-22T10:00:00.000Z	62 \| moderate	15.001 \| fine	65.804 \| fine	4.25 \| good	0.8 \| good	17.867 \| good	0.322 \| good
2026-10-22T11:00:00.000Z	64 \| moderate	15.936 \| fine	52.693 \| good	8.277 \| good	0.781 \| good	16.784 \| good	0.43 \| good
2026-10-22T12:00:00.000Z	62 \| moderate	15.267 \| fine	39.74 \| good	9.347 \| good	0.78 \| good	19.027 \| good	0.527 \| good
2026-10-22T13:00:00.000Z	66 \| moderate	16.944 \| fine	60.522 \| fine	11.25 \| good	0.929 \| good	19.349 \| good	0.449 \| good
2026-10-22T14:00:00.000Z	67 \| moderate	17.659 \| fine	35.993 \| good	6.858 \| good	1.24 \| good	19.352 \| good	0.498 \| good
2026-10-22T15:00:00.000Z	64 \| moderate	16.238 \| fine	43.734 \| good	10.663 \| good	1.466 \| good	21.807 \| good	0.487 \| good
2026-10-22T16:00:00.000Z	64 \| moderate	15.956 \| fine	59.899 \| fine	18.18 \| good	1.587 \| good	22.308 \| good	0.325 \| good
2026-10-22T17:00:00.000Z	60 \| moderate	13.938 \| fine	52.445 \| good	24.628 \| good	1.946 \| good	21.678 \| good	0.298 \| good
2026-10-22T18:00:00.000Z	58 \| moderate	12.522 \| fine	50.148 \| good	28.342 \| good	1.582 \| good	19.008 \| good	0.248 \| good
2026-10-22T19:00:00.000Z	56 \| moderate	11.894 \| good	53.299 \| good	30.169 \| good	2.435 \| good	22.335 \| good	0.222 \| good
2026-10-22T20:00:00.000Z	54 \| moderate	10.548 \| good	38.762 \| good	36.004 \| good	1.825 \| good	10.936 \| good	0.222 \| good
2026-10-22T21:00:00.000Z	54 \| moderate	11.286 \| good	54.454 \| good	45.64 \| good	1.789 \| good	6.761 \| good	0.259 \| good
2026-10-22T21:00:00.000Z	54 \| moderate	10.818 \| good	50.671 \| good	48.086 \| good	1.805 \| good	6.731 \| good	0.259 \| good
2026-10-22T22:00:00.000Z	54 \| moderate	10.966 \| good	48.709 \| good	43.989 \| good	1.874 \| good	25.976 \| good	0.287 \| good
2026-10-22T23:00:00.000Z	62 \| moderate	14.829 \| fine	66.646 \| fine	32.292 \| good	1.962 \| good	43.254 \| good	0.398 \| good
2026-10-23T00:00:00.000Z	62 \| moderate	15.27 \| fine	67.77 \| fine	21.051 \| good	2.237 \| good	49.736 \| good	0.478 \| good
2026-10-23T01:00:00.000Z	64 \| moderate	16.036 \| fine	71.899 \| fine	15.235 \| good	2.394 \| good	51.041 \| good	0.491 \| good
2026-10-23T02:00:00.000Z	64 \| moderate	15.652 \| fine	69.859 \| fine	9.613 \| good	2.566 \| good	52.219 \| good	0.487 \| good
2026-10-23T03:00:00.000Z	64 \| moderate	16.02 \| fine	71.815 \| fine	6.678 \| good	2.747 \| good	52.28 \| good	0.485 \| good
2026-10-23T04:00:00.000Z	60 \| moderate	14.12 \| fine	63.737 \| fine	6.816 \| good	2.882 \| good	51.762 \| good	0.489 \| good
2026-10-23T05:00:00.000Z	58 \| moderate	12.866 \| fine	57.823 \| fine	6.019 \| good	2.837 \| good	50.813 \| good	0.488 \| good
2026-10-23T06:00:00.000Z	58 \| moderate	12.952 \| fine	58.006 \| fine	6.475 \| good	2.735 \| good	49.612 \| good	0.468 \| good
2026-10-23T07:00:00.000Z	60 \| moderate	14.071 \| fine	63.557 \| fine	8.124 \| good	2.774 \| good	48.264 \| good	0.445 \| good
2026-10-23T08:00:00.000Z	66 \| moderate	16.611 \| fine	74.181 \| fine	8.917 \| good	2.917 \| good	46.813 \| good	0.428 \| good
2026-10-23T09:00:00.000Z	73 \| moderate	20.723 \| fine	90.566 \| fine	5.685 \| good	3.113 \| good	45.154 \| good	0.412 \| good
2026-10-23T10:00:00.000Z	81 \| moderate	25.498 \| fine	111.533 \| fine	3.524 \| good	3.4 \| good	43.412 \| good	0.4 \| good
2026-10-23T11:00:00.000Z	84 \| moderate	27.373 \| fine	119.122 \| fine	0.93 \| good	3.652 \| good	41.747 \| good	0.395 \| good
2026-10-23T12:00:00.000Z	86 \| moderate	27.633 \| fine	120.759 \| fine	0.322 \| good	3.947 \| good	40.261 \| good	0.41 \| good
2026-10-23T13:00:00.000Z	84 \| moderate	26.954 \| fine	116.791 \| fine	3.033 \| good	4.171 \| good	36.437 \| good	0.454 \| good
2026-10-23T14:00:00.000Z	77 \| moderate	23.167 \| fine	101.156 \| fine	11.809 \| good	3.71 \| good	31.062 \| good	0.443 \| good
2026-10-23T15:00:00.000Z	71 \| moderate	19.948 \| fine	87.486 \| fine	23.354 \| good	3.334 \| good	27.714 \| good	0.405 \| good
2026-10-23T16:00:00.000Z	69 \| moderate	18.501 \| fine	81.486 \| fine	32.825 \| good	2.843 \| good	23.37 \| good	0.329 \| good
2026-10-23T17:00:00.000Z	64 \| moderate	16.44 \| fine	72.994 \| fine	40.932 \| good	2.407 \| good	18.192 \| good	0.271 \| good
2026-10-23T18:00:00.000Z	62 \| moderate	15.11 \| fine	67.156 \| fine	47.607 \| good	2.364 \| good	12.41 \| good	0.23 \| good
2026-10-23T19:00:00.000Z	60 \| moderate	13.999 \| fine	62.936 \| fine	52.573 \| good	2.319 \| good	9.057 \| good	0.214 \| good
2026-10-23T20:00:00.000Z	58 \| moderate	12.853 \| fine	58.446 \| fine	54.222 \| good	2.232 \| good	7.909 \| good	0.208 \| good
2026-10-23T21:00:00.000Z	56 \| moderate	11.992 \| good	54.013 \| good	52.08 \| good	2.213 \| good	8.458 \| good	0.208 \| good
2026-10-23T22:00:00.000Z	60 \| moderate	13.815 \| fine	62.217 \| fine	37.404 \| good	2.129 \| good	15.633 \| good	0.238 \| good
2026-10-23T23:00:00.000Z	66 \| moderate	16.817 \| fine	74.753 \| fine	23.78 \| good	2.174 \| good	28.305 \| good	0.29 \| good
2026-10-24T00:00:00.000Z	67 \| moderate	17.934 \| fine	79.248 \| fine	13.756 \| good	2.296 \| good	37.345 \| good	0.314 \| good
2026-10-24T01:00:00.000Z	66 \| moderate	17.453 \| fine	77.224 \| fine	8.364 \| good	2.376 \| good	40.054 \| good	0.303 \| good
2026-10-24T02:00:00.000Z	67 \| moderate	18.06 \| fine	79.308 \| fine	5.852 \| good	2.395 \| good	40.857 \| good	0.291 \| good
2026-10-24T03:00:00.000Z	67 \| moderate	17.76 \| fine	78.898 \| fine	8.116 \| good	2.382 \| good	39.826 \| good	0.281 \| good
2026-10-24T04:00:00.000Z	64 \| moderate	16.162 \| fine	71.183 \| fine	12.328 \| good	2.335 \| good	36.346 \| good	0.272 \| good
2026-10-24T05:00:00.000Z	62 \| moderate	14.507 \| fine	64.659 \| fine	17.708 \| good	2.227 \| good	29.13 \| good	0.261 \| good
2026-10-24T06:00:00.000Z	60 \| moderate	13.668 \| fine	61.149 \| fine	19.626 \| good	2.116 \| good	22.422 \| good	0.249 \| good
2026-10-24T07:00:00.000Z	58 \| moderate	13.101 \| fine	59.111 \| fine	18.621 \| good	1.969 \| good	17.931 \| good	0.24 \| good
2026-10-24T08:00:00.000Z	56 \| moderate	11.793 \| good	52.072 \| good	20.24 \| good	1.834 \| good	15.093 \| good	0.234 \| good
2026-10-24T09:00:00.000Z	56 \| moderate	12.013 \| good	54.067 \| good	17.351 \| good	1.731 \| good	13.613 \| good	0.232 \| good
2026-10-24T10:00:00.000Z	56 \| moderate	11.508 \| good	51.076 \| good	17.298 \| good	1.674 \| good	13.282 \| good	0.233 \| good
2026-10-24T11:00:00.000Z	56 \| moderate	12.255 \| fine	55.258 \| fine	16.143 \| good	1.668 \| good	14.249 \| good	0.236 \| good
2026-10-24T12:00:00.000Z	58 \| moderate	13.455 \| fine	61.156 \| fine	14.177 \| good	1.741 \| good	18.989 \| good	0.246 \| good
2026-10-24T13:00:00.000Z	60 \| moderate	14.441 \| fine	65.205 \| fine	17.019 \| good	1.825 \| good	20.497 \| good	0.262 \| good
2026-10-24T14:00:00.000Z	64 \| moderate	16.296 \| fine	73.157 \| fine	26.564 \| good	1.846 \| good	19.193 \| good	0.279 \| good
2026-10-24T15:00:00.000Z	62 \| moderate	15.045 \| fine	67.274 \| fine	36.016 \| good	1.897 \| good	17.321 \| good	0.273 \| good
2026-10-24T16:00:00.000Z	60 \| moderate	13.574 \| fine	61.274 \| fine	43.043 \| good	1.915 \| good	15.985 \| good	0.264 \| good
2026-10-24T17:00:00.000Z	56 \| moderate	12.141 \| fine	54.42 \| good	45.733 \| good	1.931 \| good	14.968 \| good	0.257 \| good
2026-10-24T18:00:00.000Z	56 \| moderate	11.934 \| good	52.686 \| good	47.641 \| good	1.943 \| good	13.16 \| good	0.245 \| good
2026-10-24T19:00:00.000Z	56 \| moderate	11.962 \| good	53.96 \| good	51.296 \| good	1.91 \| good	11.065 \| good	0.23 \| good
2026-10-24T20:00:00.000Z	56 \| moderate	11.521 \| good	51 \| good	52.626 \| good	1.889 \| good	10.318 \| good	0.22 \| good
2026-10-24T21:00:00.000Z	54 \| moderate	11.363 \| good	50.657 \| good	51.339 \| good	1.881 \| good	11.523 \| good	0.22 \| good

Arlington Heights, Illinois live air quality index now

Major air pollutants in Arlington Heights, Illinois

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Arlington Heights, Illinois air quality map: Track AQI near you

Air quality in nearby cities

Rolling Meadows, Illinois

Prospect Heights, Illinois

Mount Prospect, Illinois

Palatine, Illinois

Wheeling, Illinois

Buffalo Grove, Illinois

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Frequently asked questions

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What is the current concentration of PM2.5 in Arlington Heights, Illinois?

What is the current concentration of PM10 in Arlington Heights, Illinois?

What is the current concentration of carbon monoxide (CO) in Arlington Heights, Illinois?

What is the current concentration of sulfur dioxide (SO2) in Arlington Heights, Illinois?

What is the current concentration of ozone (O3) in Arlington Heights, Illinois?

What is the current concentration of nitrogen dioxide (NO2) in Arlington Heights, Illinois?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the current concentration of PM_2.5 in Arlington Heights, Illinois?

What is the current concentration of PM₁₀ in Arlington Heights, Illinois?

What is the current concentration of sulfur dioxide (SO₂) in Arlington Heights, Illinois?

What is the current concentration of ozone (O₃) in Arlington Heights, Illinois?

What is the current concentration of nitrogen dioxide (NO₂) in Arlington Heights, Illinois?