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

Currently, Chicago Heights, Illinois has a sulfur dioxide (SO2) concentration of 0.177 ppb.

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

The current ozone (O3) level in Chicago Heights, Illinois at the moment is 37.997 ppm.

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

Nitrogen dioxide (NO2) level in Chicago Heights, Illinois at the moment is 4.177 ppb.

Real-time air quality index in Chicago Heights, Illinois today

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

Stay updated with real-time air quality in Chicago 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

Chicago Heights, Illinois

Last updated: ... (Local time)

Major air pollutants in Chicago Heights, Illinois

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

23.68 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

105.45 μg/m³

155

255

425

605+

Ozone (O₃)

38.00 ppb

201

201+

Sulfur Dioxide (SO₂)

0.18 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.18 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.29 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Chicago Heights, Illinois

Get Live Pollen Counts

Chicago Heights, Illinois

Scroll To Air Quality Map

Track live Chicago Heights, Illinois air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-05T12:00:00.000Z	156 \| unhealthy	62.913 \| poor	259.851 \| poor	26.841 \| good	0.271 \| good	9.779 \| good	0.483 \| good
2025-06-05T13:00:00.000Z	154 \| unhealthy	59.82 \| poor	256.242 \| poor	33.9 \| good	0.346 \| good	9.241 \| good	0.429 \| good
2025-06-05T14:00:00.000Z	151 \| unhealthy	56.082 \| poor	248.225 \| moderate	29.665 \| good	0.331 \| good	6.108 \| good	0.403 \| good
2025-06-05T15:00:00.000Z	149 \| sensitive	54.988 \| moderate	242.141 \| moderate	34.778 \| good	0.303 \| good	4.422 \| good	0.398 \| good
2025-06-05T16:00:00.000Z	154 \| unhealthy	59.711 \| poor	255.325 \| poor	34.692 \| good	0.774 \| good	4.304 \| good	0.382 \| good
2025-06-05T17:00:00.000Z	158 \| unhealthy	64.502 \| poor	261.124 \| poor	44.016 \| good	2.649 \| good	4.73 \| good	0.386 \| good
2025-06-05T18:00:00.000Z	158 \| unhealthy	65.818 \| poor	248.836 \| moderate	44.17 \| good	1.305 \| good	3.525 \| good	0.353 \| good
2025-06-05T19:00:00.000Z	158 \| unhealthy	66.011 \| poor	261.281 \| poor	46.324 \| good	1.43 \| good	0.831 \| good	0.304 \| good
2025-06-05T20:00:00.000Z	156 \| unhealthy	63.041 \| poor	250.588 \| moderate	48.422 \| good	0.901 \| good	3.161 \| good	0.282 \| good
2025-06-05T21:00:00.000Z	155 \| unhealthy	61.486 \| poor	256.023 \| poor	50.803 \| good	0.877 \| good	3.627 \| good	0.266 \| good
2025-06-05T22:00:00.000Z	156 \| unhealthy	62.623 \| poor	257.362 \| poor	52.925 \| good	0.428 \| good	4.994 \| good	0.266 \| good
2025-06-05T23:00:00.000Z	154 \| unhealthy	60.15 \| poor	249.327 \| moderate	52.712 \| good	0.348 \| good	6.582 \| good	0.244 \| good
2025-06-06T00:00:00.000Z	149 \| sensitive	54.606 \| moderate	244.589 \| moderate	51.819 \| good	0.671 \| good	5.573 \| good	0.244 \| good
2025-06-06T01:00:00.000Z	134 \| sensitive	48.826 \| moderate	220.433 \| moderate	49.97 \| good	1.047 \| good	11.182 \| good	0.244 \| good
2025-06-06T02:00:00.000Z	122 \| sensitive	44.463 \| moderate	196.781 \| moderate	48.831 \| good	3.676 \| good	7.729 \| good	0.244 \| good
2025-06-06T03:00:00.000Z	117 \| sensitive	41.52 \| moderate	181.636 \| moderate	46.926 \| good	4.042 \| good	6.843 \| good	0.293 \| good
2025-06-06T04:00:00.000Z	117 \| sensitive	42.139 \| moderate	186.721 \| moderate	46.711 \| good	3.932 \| good	3.088 \| good	0.293 \| good
2025-06-06T05:00:00.000Z	111 \| sensitive	39.467 \| moderate	174.689 \| moderate	46.843 \| good	1.64 \| good	5.35 \| good	0.326 \| good
2025-06-06T06:00:00.000Z	105 \| sensitive	36.962 \| moderate	162.267 \| moderate	45.082 \| good	1.295 \| good	11.284 \| good	0.342 \| good
2025-06-06T07:00:00.000Z	105 \| sensitive	37.23 \| moderate	163.638 \| moderate	45.203 \| good	0.4 \| good	9.089 \| good	0.309 \| good
2025-06-06T08:00:00.000Z	103 \| sensitive	36.237 \| moderate	159.168 \| moderate	39.681 \| good	0.292 \| good	9.064 \| good	0.309 \| good
2025-06-06T09:00:00.000Z	102 \| sensitive	36.424 \| moderate	154.184 \| fine	40.173 \| good	0.316 \| good	12.561 \| good	0.309 \| good
2025-06-06T10:00:00.000Z	107 \| sensitive	38.373 \| moderate	166.202 \| moderate	39.188 \| good	2.006 \| good	12.03 \| good	0.309 \| good
2025-06-06T11:00:00.000Z	107 \| sensitive	37.593 \| moderate	164.951 \| moderate	41.174 \| good	0.406 \| good	10.788 \| good	0.353 \| good
2025-06-06T12:00:00.000Z	107 \| sensitive	38.193 \| moderate	167.471 \| moderate	37.311 \| good	0.34 \| good	8.728 \| good	0.348 \| good
2025-06-06T13:00:00.000Z	107 \| sensitive	37.786 \| moderate	167.029 \| moderate	37.069 \| good	0.345 \| good	5.953 \| good	0.32 \| good
2025-06-06T14:00:00.000Z	108 \| sensitive	37.861 \| moderate	168.927 \| moderate	34.379 \| good	0.362 \| good	11.322 \| good	0.464 \| good
2025-06-06T15:00:00.000Z	108 \| sensitive	38.292 \| moderate	169.91 \| moderate	38.456 \| good	0.464 \| good	6.748 \| good	0.331 \| good
2025-06-06T16:00:00.000Z	110 \| sensitive	38.555 \| moderate	171.095 \| moderate	41.32 \| good	1.025 \| good	2.663 \| good	0.271 \| good
2025-06-06T17:00:00.000Z	110 \| sensitive	38.669 \| moderate	165.22 \| moderate	45.347 \| good	0.897 \| good	2.659 \| good	0.271 \| good
2025-06-06T18:00:00.000Z	110 \| sensitive	38.988 \| moderate	170.576 \| moderate	45.641 \| good	0.536 \| good	2.111 \| good	0.271 \| good
2025-06-06T19:00:00.000Z	112 \| sensitive	40.475 \| moderate	173.517 \| moderate	49.199 \| good	1.54 \| good	2.476 \| good	0.255 \| good
2025-06-06T20:00:00.000Z	115 \| sensitive	40.615 \| moderate	174.721 \| moderate	51.926 \| good	0.676 \| good	1.628 \| good	0.255 \| good
2025-06-06T21:00:00.000Z	116 \| sensitive	41.166 \| moderate	185.346 \| moderate	54.801 \| good	0.525 \| good	1.334 \| good	0.255 \| good
2025-06-06T22:00:00.000Z	115 \| sensitive	40.998 \| moderate	183.404 \| moderate	57.432 \| fine	0.531 \| good	4.66 \| good	0.233 \| good
2025-06-06T23:00:00.000Z	120 \| sensitive	42.707 \| moderate	193.59 \| moderate	60.076 \| fine	0.51 \| good	7.911 \| good	0.233 \| good
2025-06-07T00:00:00.000Z	110 \| sensitive	38.521 \| moderate	169.385 \| moderate	60.847 \| fine	0.608 \| good	6.136 \| good	0.26 \| good
2025-06-07T01:00:00.000Z	104 \| sensitive	36.114 \| moderate	160.601 \| moderate	63.178 \| fine	1.474 \| good	10.03 \| good	0.277 \| good
2025-06-07T02:00:00.000Z	96 \| moderate	33.047 \| fine	142.989 \| fine	62.435 \| fine	1.145 \| good	12.013 \| good	0.277 \| good
2025-06-07T03:00:00.000Z	92 \| moderate	30.944 \| fine	134.732 \| fine	59.736 \| fine	0.81 \| good	10.431 \| good	0.293 \| good
2025-06-07T04:00:00.000Z	90 \| moderate	30.003 \| fine	129.675 \| fine	57.056 \| fine	0.838 \| good	7.726 \| good	0.277 \| good
2025-06-07T05:00:00.000Z	88 \| moderate	28.518 \| fine	122.982 \| fine	55.891 \| fine	0.328 \| good	7.123 \| good	0.277 \| good
2025-06-07T06:00:00.000Z	84 \| moderate	27.152 \| fine	117.767 \| fine	57.427 \| fine	0.304 \| good	6.666 \| good	0.277 \| good
2025-06-07T07:00:00.000Z	82 \| moderate	26.232 \| fine	114.676 \| fine	50.023 \| good	0.233 \| good	5.651 \| good	0.277 \| good
2025-06-07T08:00:00.000Z	81 \| moderate	25.361 \| fine	107.937 \| fine	47.132 \| good	0.199 \| good	6.733 \| good	0.255 \| good
2025-06-07T09:00:00.000Z	77 \| moderate	23.497 \| fine	101.903 \| fine	47.565 \| good	0.186 \| good	6.367 \| good	0.292 \| good
2025-06-07T10:00:00.000Z	79 \| moderate	23.677 \| fine	105.447 \| fine	37.997 \| good	0.177 \| good	4.177 \| good	0.293 \| good
2025-06-07T11:00:00.000Z	79 \| moderate	23.677 \| fine	105.447 \| fine	37.997 \| good	0.177 \| good	4.177 \| good	0.293 \| good
2025-06-07T12:00:00.000Z	73 \| moderate	21.398 \| fine	93.385 \| fine	22.237 \| good	1.046 \| good	6.626 \| good	0.236 \| good
2025-06-07T13:00:00.000Z	84 \| moderate	26.537 \| fine	115.397 \| fine	28.383 \| good	1.641 \| good	5.045 \| good	0.213 \| good
2025-06-07T14:00:00.000Z	92 \| moderate	31.299 \| fine	135.441 \| fine	39.702 \| good	1.414 \| good	4.735 \| good	0.212 \| good
2025-06-07T15:00:00.000Z	82 \| moderate	26.279 \| fine	113.709 \| fine	43.883 \| good	1.186 \| good	4.425 \| good	0.211 \| good
2025-06-07T16:00:00.000Z	71 \| moderate	20.382 \| fine	89.619 \| fine	47.166 \| good	1.161 \| good	2.142 \| good	0.186 \| good
2025-06-07T17:00:00.000Z	71 \| moderate	20.113 \| fine	87.828 \| fine	48.264 \| good	1.039 \| good	2.068 \| good	0.188 \| good
2025-06-07T18:00:00.000Z	69 \| moderate	19.452 \| fine	85.62 \| fine	49.272 \| good	0.917 \| good	1.995 \| good	0.189 \| good
2025-06-07T19:00:00.000Z	64 \| moderate	15.538 \| fine	69.341 \| fine	45.752 \| good	1.264 \| good	3.04 \| good	0.199 \| good
2025-06-07T20:00:00.000Z	64 \| moderate	15.54 \| fine	69.441 \| fine	45.453 \| good	1.119 \| good	3.068 \| good	0.201 \| good
2025-06-07T21:00:00.000Z	64 \| moderate	15.804 \| fine	69.677 \| fine	45.035 \| good	0.973 \| good	3.095 \| good	0.202 \| good
2025-06-07T22:00:00.000Z	58 \| moderate	12.9 \| fine	57.494 \| fine	46.895 \| good	1.826 \| good	10.925 \| good	0.249 \| good
2025-06-07T23:00:00.000Z	49 \| good	8.759 \| good	38.227 \| good	45.939 \| good	1.609 \| good	10.731 \| good	0.248 \| good
2025-06-08T00:00:00.000Z	52 \| moderate	9.763 \| good	43.302 \| good	42.886 \| good	1.393 \| good	10.538 \| good	0.247 \| good
2025-06-08T01:00:00.000Z	58 \| moderate	12.885 \| fine	57.481 \| fine	38.873 \| good	1.801 \| good	13.455 \| good	0.256 \| good
2025-06-08T02:00:00.000Z	67 \| moderate	17.571 \| fine	77.26 \| fine	36.531 \| good	1.535 \| good	12.029 \| good	0.248 \| good
2025-06-08T03:00:00.000Z	71 \| moderate	20.194 \| fine	88.859 \| fine	32.743 \| good	1.269 \| good	10.602 \| good	0.241 \| good
2025-06-08T04:00:00.000Z	69 \| moderate	18.513 \| fine	81.26 \| fine	35.332 \| good	1.632 \| good	15.723 \| good	0.272 \| good
2025-06-08T05:00:00.000Z	64 \| moderate	15.867 \| fine	71.054 \| fine	38.448 \| good	1.426 \| good	14.408 \| good	0.267 \| good
2025-06-08T06:00:00.000Z	64 \| moderate	16.074 \| fine	71.238 \| fine	38.554 \| good	1.219 \| good	13.093 \| good	0.261 \| good
2025-06-08T07:00:00.000Z	60 \| moderate	13.857 \| fine	62.743 \| fine	35.2 \| good	1.766 \| good	18.547 \| good	0.277 \| good
2025-06-08T08:00:00.000Z	62 \| moderate	15.132 \| fine	67.282 \| fine	30.761 \| good	1.601 \| good	17.315 \| good	0.271 \| good
2025-06-08T09:00:00.000Z	64 \| moderate	15.592 \| fine	69.39 \| fine	31.089 \| good	1.435 \| good	16.083 \| good	0.265 \| good
2025-06-08T10:00:00.000Z	56 \| moderate	11.506 \| good	51.236 \| good	34.663 \| good	2.138 \| good	15.762 \| good	0.306 \| good
2025-06-08T11:00:00.000Z	54 \| moderate	10.65 \| good	47.373 \| good	34.21 \| good	2.066 \| good	14.909 \| good	0.303 \| good
2025-06-08T12:00:00.000Z	38 \| good	6.705 \| good	29.958 \| good	34.375 \| good	1.994 \| good	14.055 \| good	0.301 \| good
2025-06-08T13:00:00.000Z	31 \| good	4.069 \| good	17.938 \| good	34.334 \| good	2.902 \| good	4.829 \| good	0.259 \| good
2025-06-08T14:00:00.000Z	49 \| good	8.772 \| good	38.444 \| good	40.024 \| good	3.185 \| good	5.194 \| good	0.272 \| good
2025-06-08T15:00:00.000Z	45 \| good	7.963 \| good	35.026 \| good	49.104 \| good	3.469 \| good	5.559 \| good	0.284 \| good
2025-06-08T16:00:00.000Z	49 \| good	6.63 \| good	29.84 \| good	52.884 \| good	1.175 \| good	1.318 \| good	0.2 \| good
2025-06-08T17:00:00.000Z	58 \| moderate	7.493 \| good	32.992 \| good	56.944 \| fine	1.325 \| good	1.404 \| good	0.209 \| good
2025-06-08T18:00:00.000Z	50 \| good	7.627 \| good	33.254 \| good	53.942 \| good	1.476 \| good	1.489 \| good	0.218 \| good
2025-06-08T19:00:00.000Z	44 \| good	6.259 \| good	27.965 \| good	47.689 \| good	0.652 \| good	1.371 \| good	0.165 \| good
2025-06-08T20:00:00.000Z	44 \| good	7.963 \| good	35.229 \| good	38.568 \| good	0.715 \| good	1.463 \| good	0.171 \| good
2025-06-08T21:00:00.000Z	38 \| good	7.111 \| good	31.277 \| good	35.698 \| good	0.777 \| good	1.556 \| good	0.176 \| good
2025-06-08T22:00:00.000Z	36 \| good	6.055 \| good	26.939 \| good	38.798 \| good	0.641 \| good	4.064 \| good	0.172 \| good
2025-06-08T23:00:00.000Z	36 \| good	4.324 \| good	19 \| good	38.807 \| good	0.673 \| good	4.342 \| good	0.176 \| good
2025-06-09T00:00:00.000Z	34 \| good	3.351 \| good	14.664 \| good	36.903 \| good	0.705 \| good	4.621 \| good	0.179 \| good
2025-06-09T01:00:00.000Z	49 \| good	8.893 \| good	38.978 \| good	33.467 \| good	0.847 \| good	6.29 \| good	0.182 \| good
2025-06-09T02:00:00.000Z	58 \| moderate	13.165 \| fine	59.154 \| fine	29.312 \| good	0.909 \| good	6.696 \| good	0.186 \| good
2025-06-09T03:00:00.000Z	60 \| moderate	14.185 \| fine	63.403 \| fine	24.834 \| good	0.971 \| good	7.103 \| good	0.189 \| good
2025-06-09T04:00:00.000Z	49 \| good	9.335 \| good	41.428 \| good	24.836 \| good	0.751 \| good	5.549 \| good	0.178 \| good
2025-06-09T05:00:00.000Z	33 \| good	6.153 \| good	27.295 \| good	24.239 \| good	0.832 \| good	5.818 \| good	0.181 \| good
2025-06-09T06:00:00.000Z	49 \| good	8.535 \| good	8.821 \| good	35.059 \| good	0.919 \| good	6.109 \| good	0.185 \| good
2025-06-09T07:00:00.000Z	33 \| good	6.192 \| good	27.34 \| good	18.877 \| good	0.792 \| good	7.197 \| good	0.175 \| good
2025-06-09T08:00:00.000Z	44 \| good	7.855 \| good	34.48 \| good	15.733 \| good	0.871 \| good	6.969 \| good	0.176 \| good
2025-06-09T09:00:00.000Z	44 \| good	7.6 \| good	33.364 \| good	14.136 \| good	0.95 \| good	6.742 \| good	0.177 \| good
2025-06-09T10:00:00.000Z	16 \| good	3.489 \| good	15.088 \| good	9.551 \| good	0.906 \| good	6.654 \| good	0.185 \| good
2025-06-09T11:00:00.000Z	11 \| good	2.282 \| good	9.15 \| good	11.915 \| good	1.011 \| good	6.598 \| good	0.185 \| good

Chicago Heights

Get reliable air quality data to drive your business

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

0.29ppm

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

Air quality levels in US

Check live rankings of places in the USA affected by air pollution.

View Polluted Cities

Check live rankings of places in the USA with the cleanest air.

View Clean Cities

Frequently asked questions

How often is air quality information updated for Chicago Heights, Illinois?

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

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

In the past 24 hours, the air quality in Chicago Heights, Illinois was at its worst at 11:00:00 on 2025-06-06.

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

In the last 24 hours, the best air quality in Chicago Heights, Illinois was observed at 09:00:00 on 2025-06-07.

What is the AQI in Chicago Heights, Illinois right now?

As of now, the AQI in Chicago Heights, Illinois is 79, indicating Moderate conditions.

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

Chicago Heights, Illinois air has the highest levels of PM2.5.

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

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

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

PM_2.5 levels in Chicago Heights, Illinois are currently 23.677 μg/m³.

What is the PM₁₀ level in Chicago Heights, Illinois at the moment?

The PM₁₀ concentration in Chicago Heights, Illinois is 105.447 μg/m³ at the moment.

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

The current carbon monoxide (CO) concentration in Chicago Heights, Illinois is 0.293 ppm.

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

Currently, Chicago Heights, Illinois has a sulfur dioxide (SO₂) concentration of 0.177 ppb.

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

The current ozone (O₃) level in Chicago Heights, Illinois at the moment is 37.997 ppm.

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

Nitrogen dioxide (NO₂) level in Chicago Heights, Illinois at the moment is 4.177 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions

Refund Policy

Terms & Conditions

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-05T12:00:00.000Z	156 \| unhealthy	62.913 \| poor	259.851 \| poor	26.841 \| good	0.271 \| good	9.779 \| good	0.483 \| good
2025-06-05T13:00:00.000Z	154 \| unhealthy	59.82 \| poor	256.242 \| poor	33.9 \| good	0.346 \| good	9.241 \| good	0.429 \| good
2025-06-05T14:00:00.000Z	151 \| unhealthy	56.082 \| poor	248.225 \| moderate	29.665 \| good	0.331 \| good	6.108 \| good	0.403 \| good
2025-06-05T15:00:00.000Z	149 \| sensitive	54.988 \| moderate	242.141 \| moderate	34.778 \| good	0.303 \| good	4.422 \| good	0.398 \| good
2025-06-05T16:00:00.000Z	154 \| unhealthy	59.711 \| poor	255.325 \| poor	34.692 \| good	0.774 \| good	4.304 \| good	0.382 \| good
2025-06-05T17:00:00.000Z	158 \| unhealthy	64.502 \| poor	261.124 \| poor	44.016 \| good	2.649 \| good	4.73 \| good	0.386 \| good
2025-06-05T18:00:00.000Z	158 \| unhealthy	65.818 \| poor	248.836 \| moderate	44.17 \| good	1.305 \| good	3.525 \| good	0.353 \| good
2025-06-05T19:00:00.000Z	158 \| unhealthy	66.011 \| poor	261.281 \| poor	46.324 \| good	1.43 \| good	0.831 \| good	0.304 \| good
2025-06-05T20:00:00.000Z	156 \| unhealthy	63.041 \| poor	250.588 \| moderate	48.422 \| good	0.901 \| good	3.161 \| good	0.282 \| good
2025-06-05T21:00:00.000Z	155 \| unhealthy	61.486 \| poor	256.023 \| poor	50.803 \| good	0.877 \| good	3.627 \| good	0.266 \| good
2025-06-05T22:00:00.000Z	156 \| unhealthy	62.623 \| poor	257.362 \| poor	52.925 \| good	0.428 \| good	4.994 \| good	0.266 \| good
2025-06-05T23:00:00.000Z	154 \| unhealthy	60.15 \| poor	249.327 \| moderate	52.712 \| good	0.348 \| good	6.582 \| good	0.244 \| good
2025-06-06T00:00:00.000Z	149 \| sensitive	54.606 \| moderate	244.589 \| moderate	51.819 \| good	0.671 \| good	5.573 \| good	0.244 \| good
2025-06-06T01:00:00.000Z	134 \| sensitive	48.826 \| moderate	220.433 \| moderate	49.97 \| good	1.047 \| good	11.182 \| good	0.244 \| good
2025-06-06T02:00:00.000Z	122 \| sensitive	44.463 \| moderate	196.781 \| moderate	48.831 \| good	3.676 \| good	7.729 \| good	0.244 \| good
2025-06-06T03:00:00.000Z	117 \| sensitive	41.52 \| moderate	181.636 \| moderate	46.926 \| good	4.042 \| good	6.843 \| good	0.293 \| good
2025-06-06T04:00:00.000Z	117 \| sensitive	42.139 \| moderate	186.721 \| moderate	46.711 \| good	3.932 \| good	3.088 \| good	0.293 \| good
2025-06-06T05:00:00.000Z	111 \| sensitive	39.467 \| moderate	174.689 \| moderate	46.843 \| good	1.64 \| good	5.35 \| good	0.326 \| good
2025-06-06T06:00:00.000Z	105 \| sensitive	36.962 \| moderate	162.267 \| moderate	45.082 \| good	1.295 \| good	11.284 \| good	0.342 \| good
2025-06-06T07:00:00.000Z	105 \| sensitive	37.23 \| moderate	163.638 \| moderate	45.203 \| good	0.4 \| good	9.089 \| good	0.309 \| good
2025-06-06T08:00:00.000Z	103 \| sensitive	36.237 \| moderate	159.168 \| moderate	39.681 \| good	0.292 \| good	9.064 \| good	0.309 \| good
2025-06-06T09:00:00.000Z	102 \| sensitive	36.424 \| moderate	154.184 \| fine	40.173 \| good	0.316 \| good	12.561 \| good	0.309 \| good
2025-06-06T10:00:00.000Z	107 \| sensitive	38.373 \| moderate	166.202 \| moderate	39.188 \| good	2.006 \| good	12.03 \| good	0.309 \| good
2025-06-06T11:00:00.000Z	107 \| sensitive	37.593 \| moderate	164.951 \| moderate	41.174 \| good	0.406 \| good	10.788 \| good	0.353 \| good
2025-06-06T12:00:00.000Z	107 \| sensitive	38.193 \| moderate	167.471 \| moderate	37.311 \| good	0.34 \| good	8.728 \| good	0.348 \| good
2025-06-06T13:00:00.000Z	107 \| sensitive	37.786 \| moderate	167.029 \| moderate	37.069 \| good	0.345 \| good	5.953 \| good	0.32 \| good
2025-06-06T14:00:00.000Z	108 \| sensitive	37.861 \| moderate	168.927 \| moderate	34.379 \| good	0.362 \| good	11.322 \| good	0.464 \| good
2025-06-06T15:00:00.000Z	108 \| sensitive	38.292 \| moderate	169.91 \| moderate	38.456 \| good	0.464 \| good	6.748 \| good	0.331 \| good
2025-06-06T16:00:00.000Z	110 \| sensitive	38.555 \| moderate	171.095 \| moderate	41.32 \| good	1.025 \| good	2.663 \| good	0.271 \| good
2025-06-06T17:00:00.000Z	110 \| sensitive	38.669 \| moderate	165.22 \| moderate	45.347 \| good	0.897 \| good	2.659 \| good	0.271 \| good
2025-06-06T18:00:00.000Z	110 \| sensitive	38.988 \| moderate	170.576 \| moderate	45.641 \| good	0.536 \| good	2.111 \| good	0.271 \| good
2025-06-06T19:00:00.000Z	112 \| sensitive	40.475 \| moderate	173.517 \| moderate	49.199 \| good	1.54 \| good	2.476 \| good	0.255 \| good
2025-06-06T20:00:00.000Z	115 \| sensitive	40.615 \| moderate	174.721 \| moderate	51.926 \| good	0.676 \| good	1.628 \| good	0.255 \| good
2025-06-06T21:00:00.000Z	116 \| sensitive	41.166 \| moderate	185.346 \| moderate	54.801 \| good	0.525 \| good	1.334 \| good	0.255 \| good
2025-06-06T22:00:00.000Z	115 \| sensitive	40.998 \| moderate	183.404 \| moderate	57.432 \| fine	0.531 \| good	4.66 \| good	0.233 \| good
2025-06-06T23:00:00.000Z	120 \| sensitive	42.707 \| moderate	193.59 \| moderate	60.076 \| fine	0.51 \| good	7.911 \| good	0.233 \| good
2025-06-07T00:00:00.000Z	110 \| sensitive	38.521 \| moderate	169.385 \| moderate	60.847 \| fine	0.608 \| good	6.136 \| good	0.26 \| good
2025-06-07T01:00:00.000Z	104 \| sensitive	36.114 \| moderate	160.601 \| moderate	63.178 \| fine	1.474 \| good	10.03 \| good	0.277 \| good
2025-06-07T02:00:00.000Z	96 \| moderate	33.047 \| fine	142.989 \| fine	62.435 \| fine	1.145 \| good	12.013 \| good	0.277 \| good
2025-06-07T03:00:00.000Z	92 \| moderate	30.944 \| fine	134.732 \| fine	59.736 \| fine	0.81 \| good	10.431 \| good	0.293 \| good
2025-06-07T04:00:00.000Z	90 \| moderate	30.003 \| fine	129.675 \| fine	57.056 \| fine	0.838 \| good	7.726 \| good	0.277 \| good
2025-06-07T05:00:00.000Z	88 \| moderate	28.518 \| fine	122.982 \| fine	55.891 \| fine	0.328 \| good	7.123 \| good	0.277 \| good
2025-06-07T06:00:00.000Z	84 \| moderate	27.152 \| fine	117.767 \| fine	57.427 \| fine	0.304 \| good	6.666 \| good	0.277 \| good
2025-06-07T07:00:00.000Z	82 \| moderate	26.232 \| fine	114.676 \| fine	50.023 \| good	0.233 \| good	5.651 \| good	0.277 \| good
2025-06-07T08:00:00.000Z	81 \| moderate	25.361 \| fine	107.937 \| fine	47.132 \| good	0.199 \| good	6.733 \| good	0.255 \| good
2025-06-07T09:00:00.000Z	77 \| moderate	23.497 \| fine	101.903 \| fine	47.565 \| good	0.186 \| good	6.367 \| good	0.292 \| good
2025-06-07T10:00:00.000Z	79 \| moderate	23.677 \| fine	105.447 \| fine	37.997 \| good	0.177 \| good	4.177 \| good	0.293 \| good
2025-06-07T11:00:00.000Z	79 \| moderate	23.677 \| fine	105.447 \| fine	37.997 \| good	0.177 \| good	4.177 \| good	0.293 \| good
2025-06-07T12:00:00.000Z	73 \| moderate	21.398 \| fine	93.385 \| fine	22.237 \| good	1.046 \| good	6.626 \| good	0.236 \| good
2025-06-07T13:00:00.000Z	84 \| moderate	26.537 \| fine	115.397 \| fine	28.383 \| good	1.641 \| good	5.045 \| good	0.213 \| good
2025-06-07T14:00:00.000Z	92 \| moderate	31.299 \| fine	135.441 \| fine	39.702 \| good	1.414 \| good	4.735 \| good	0.212 \| good
2025-06-07T15:00:00.000Z	82 \| moderate	26.279 \| fine	113.709 \| fine	43.883 \| good	1.186 \| good	4.425 \| good	0.211 \| good
2025-06-07T16:00:00.000Z	71 \| moderate	20.382 \| fine	89.619 \| fine	47.166 \| good	1.161 \| good	2.142 \| good	0.186 \| good
2025-06-07T17:00:00.000Z	71 \| moderate	20.113 \| fine	87.828 \| fine	48.264 \| good	1.039 \| good	2.068 \| good	0.188 \| good
2025-06-07T18:00:00.000Z	69 \| moderate	19.452 \| fine	85.62 \| fine	49.272 \| good	0.917 \| good	1.995 \| good	0.189 \| good
2025-06-07T19:00:00.000Z	64 \| moderate	15.538 \| fine	69.341 \| fine	45.752 \| good	1.264 \| good	3.04 \| good	0.199 \| good
2025-06-07T20:00:00.000Z	64 \| moderate	15.54 \| fine	69.441 \| fine	45.453 \| good	1.119 \| good	3.068 \| good	0.201 \| good
2025-06-07T21:00:00.000Z	64 \| moderate	15.804 \| fine	69.677 \| fine	45.035 \| good	0.973 \| good	3.095 \| good	0.202 \| good
2025-06-07T22:00:00.000Z	58 \| moderate	12.9 \| fine	57.494 \| fine	46.895 \| good	1.826 \| good	10.925 \| good	0.249 \| good
2025-06-07T23:00:00.000Z	49 \| good	8.759 \| good	38.227 \| good	45.939 \| good	1.609 \| good	10.731 \| good	0.248 \| good
2025-06-08T00:00:00.000Z	52 \| moderate	9.763 \| good	43.302 \| good	42.886 \| good	1.393 \| good	10.538 \| good	0.247 \| good
2025-06-08T01:00:00.000Z	58 \| moderate	12.885 \| fine	57.481 \| fine	38.873 \| good	1.801 \| good	13.455 \| good	0.256 \| good
2025-06-08T02:00:00.000Z	67 \| moderate	17.571 \| fine	77.26 \| fine	36.531 \| good	1.535 \| good	12.029 \| good	0.248 \| good
2025-06-08T03:00:00.000Z	71 \| moderate	20.194 \| fine	88.859 \| fine	32.743 \| good	1.269 \| good	10.602 \| good	0.241 \| good
2025-06-08T04:00:00.000Z	69 \| moderate	18.513 \| fine	81.26 \| fine	35.332 \| good	1.632 \| good	15.723 \| good	0.272 \| good
2025-06-08T05:00:00.000Z	64 \| moderate	15.867 \| fine	71.054 \| fine	38.448 \| good	1.426 \| good	14.408 \| good	0.267 \| good
2025-06-08T06:00:00.000Z	64 \| moderate	16.074 \| fine	71.238 \| fine	38.554 \| good	1.219 \| good	13.093 \| good	0.261 \| good
2025-06-08T07:00:00.000Z	60 \| moderate	13.857 \| fine	62.743 \| fine	35.2 \| good	1.766 \| good	18.547 \| good	0.277 \| good
2025-06-08T08:00:00.000Z	62 \| moderate	15.132 \| fine	67.282 \| fine	30.761 \| good	1.601 \| good	17.315 \| good	0.271 \| good
2025-06-08T09:00:00.000Z	64 \| moderate	15.592 \| fine	69.39 \| fine	31.089 \| good	1.435 \| good	16.083 \| good	0.265 \| good
2025-06-08T10:00:00.000Z	56 \| moderate	11.506 \| good	51.236 \| good	34.663 \| good	2.138 \| good	15.762 \| good	0.306 \| good
2025-06-08T11:00:00.000Z	54 \| moderate	10.65 \| good	47.373 \| good	34.21 \| good	2.066 \| good	14.909 \| good	0.303 \| good
2025-06-08T12:00:00.000Z	38 \| good	6.705 \| good	29.958 \| good	34.375 \| good	1.994 \| good	14.055 \| good	0.301 \| good
2025-06-08T13:00:00.000Z	31 \| good	4.069 \| good	17.938 \| good	34.334 \| good	2.902 \| good	4.829 \| good	0.259 \| good
2025-06-08T14:00:00.000Z	49 \| good	8.772 \| good	38.444 \| good	40.024 \| good	3.185 \| good	5.194 \| good	0.272 \| good
2025-06-08T15:00:00.000Z	45 \| good	7.963 \| good	35.026 \| good	49.104 \| good	3.469 \| good	5.559 \| good	0.284 \| good
2025-06-08T16:00:00.000Z	49 \| good	6.63 \| good	29.84 \| good	52.884 \| good	1.175 \| good	1.318 \| good	0.2 \| good
2025-06-08T17:00:00.000Z	58 \| moderate	7.493 \| good	32.992 \| good	56.944 \| fine	1.325 \| good	1.404 \| good	0.209 \| good
2025-06-08T18:00:00.000Z	50 \| good	7.627 \| good	33.254 \| good	53.942 \| good	1.476 \| good	1.489 \| good	0.218 \| good
2025-06-08T19:00:00.000Z	44 \| good	6.259 \| good	27.965 \| good	47.689 \| good	0.652 \| good	1.371 \| good	0.165 \| good
2025-06-08T20:00:00.000Z	44 \| good	7.963 \| good	35.229 \| good	38.568 \| good	0.715 \| good	1.463 \| good	0.171 \| good
2025-06-08T21:00:00.000Z	38 \| good	7.111 \| good	31.277 \| good	35.698 \| good	0.777 \| good	1.556 \| good	0.176 \| good
2025-06-08T22:00:00.000Z	36 \| good	6.055 \| good	26.939 \| good	38.798 \| good	0.641 \| good	4.064 \| good	0.172 \| good
2025-06-08T23:00:00.000Z	36 \| good	4.324 \| good	19 \| good	38.807 \| good	0.673 \| good	4.342 \| good	0.176 \| good
2025-06-09T00:00:00.000Z	34 \| good	3.351 \| good	14.664 \| good	36.903 \| good	0.705 \| good	4.621 \| good	0.179 \| good
2025-06-09T01:00:00.000Z	49 \| good	8.893 \| good	38.978 \| good	33.467 \| good	0.847 \| good	6.29 \| good	0.182 \| good
2025-06-09T02:00:00.000Z	58 \| moderate	13.165 \| fine	59.154 \| fine	29.312 \| good	0.909 \| good	6.696 \| good	0.186 \| good
2025-06-09T03:00:00.000Z	60 \| moderate	14.185 \| fine	63.403 \| fine	24.834 \| good	0.971 \| good	7.103 \| good	0.189 \| good
2025-06-09T04:00:00.000Z	49 \| good	9.335 \| good	41.428 \| good	24.836 \| good	0.751 \| good	5.549 \| good	0.178 \| good
2025-06-09T05:00:00.000Z	33 \| good	6.153 \| good	27.295 \| good	24.239 \| good	0.832 \| good	5.818 \| good	0.181 \| good
2025-06-09T06:00:00.000Z	49 \| good	8.535 \| good	8.821 \| good	35.059 \| good	0.919 \| good	6.109 \| good	0.185 \| good
2025-06-09T07:00:00.000Z	33 \| good	6.192 \| good	27.34 \| good	18.877 \| good	0.792 \| good	7.197 \| good	0.175 \| good
2025-06-09T08:00:00.000Z	44 \| good	7.855 \| good	34.48 \| good	15.733 \| good	0.871 \| good	6.969 \| good	0.176 \| good
2025-06-09T09:00:00.000Z	44 \| good	7.6 \| good	33.364 \| good	14.136 \| good	0.95 \| good	6.742 \| good	0.177 \| good
2025-06-09T10:00:00.000Z	16 \| good	3.489 \| good	15.088 \| good	9.551 \| good	0.906 \| good	6.654 \| good	0.185 \| good
2025-06-09T11:00:00.000Z	11 \| good	2.282 \| good	9.15 \| good	11.915 \| good	1.011 \| good	6.598 \| good	0.185 \| good

Real-time air quality index in Chicago Heights, Illinois today

Major air pollutants in Chicago Heights, Illinois

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Chicago Heights, Illinois air quality forecast and history

Get reliable air quality data to drive your business

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

Air quality in nearby cities

Park Forest, Illinois

Richton Park, Illinois

Matteson, Illinois

Homewood, Illinois

Hazel Crest, Illinois

Dyer, Indiana

How accurate is Illinois, USA air quality data?

Air quality levels in US

Frequently asked questions

How often is air quality information updated for Chicago Heights, Illinois?

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

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

What is the AQI in Chicago Heights, Illinois right now?

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

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

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

What is the PM10 level in Chicago Heights, Illinois at the moment?

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

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

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

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

What is the PM₁₀ level in Chicago Heights, Illinois at the moment?

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

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

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