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

The PM10 concentration in Markham, Illinois is 106.077 μg/m3 at the moment.

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

Currently, Markham, Illinois has a sulfur dioxide (SO2) concentration of 0.206 ppb.

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

The current ozone (O3) level in Markham, Illinois at the moment is 33.456 ppm.

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

Nitrogen dioxide (NO2) level in Markham, Illinois at the moment is 4.163 ppb.

Real-time air quality index in Markham, Illinois today

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

Stay updated with real-time air quality in Markham, 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

Markham, Illinois

Last updated: ... (Local time)

Major air pollutants in Markham, Illinois

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

24.19 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

106.08 μg/m³

155

255

425

605+

Ozone (O₃)

33.46 ppb

201

201+

Sulfur Dioxide (SO₂)

0.21 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.16 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.29 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Markham, Illinois

Get Live Pollen Counts

Markham, Illinois

Scroll To Air Quality Map

Track live Markham, Illinois air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-05T12:00:00.000Z	152 \| unhealthy	57.051 \| poor	175.553 \| moderate	26.542 \| good	0.337 \| good	9.786 \| good	0.476 \| good
2025-06-05T13:00:00.000Z	155 \| unhealthy	60.522 \| poor	234.353 \| moderate	19.973 \| good	0.381 \| good	9.148 \| good	0.422 \| good
2025-06-05T14:00:00.000Z	147 \| sensitive	53.667 \| moderate	243.102 \| moderate	23.511 \| good	0.368 \| good	6.117 \| good	0.398 \| good
2025-06-05T15:00:00.000Z	152 \| unhealthy	57.196 \| poor	252.349 \| moderate	32.481 \| good	0.346 \| good	4.448 \| good	0.397 \| good
2025-06-05T16:00:00.000Z	157 \| unhealthy	64.007 \| poor	249.121 \| moderate	35.003 \| good	0.813 \| good	4.323 \| good	0.381 \| good
2025-06-05T17:00:00.000Z	153 \| unhealthy	57.686 \| poor	246.112 \| moderate	42.699 \| good	2.916 \| good	4.772 \| good	0.386 \| good
2025-06-05T18:00:00.000Z	84 \| moderate	27.089 \| fine	35.166 \| good	41.946 \| good	1.411 \| good	3.559 \| good	0.355 \| good
2025-06-05T19:00:00.000Z	64 \| moderate	15.899 \| fine	22.599 \| good	44.242 \| good	1.521 \| good	0.94 \| good	0.304 \| good
2025-06-05T20:00:00.000Z	44 \| good	4.8 \| good	22.315 \| good	47.385 \| good	0.999 \| good	3.181 \| good	0.281 \| good
2025-06-05T21:00:00.000Z	122 \| sensitive	43.596 \| moderate	113.457 \| fine	50.456 \| good	0.992 \| good	3.649 \| good	0.266 \| good
2025-06-05T22:00:00.000Z	122 \| sensitive	44.134 \| moderate	66.766 \| fine	53.289 \| good	0.448 \| good	4.924 \| good	0.266 \| good
2025-06-05T23:00:00.000Z	122 \| sensitive	44.045 \| moderate	153.498 \| fine	53.696 \| good	0.385 \| good	6.587 \| good	0.243 \| good
2025-06-06T00:00:00.000Z	144 \| sensitive	53.491 \| moderate	229.447 \| moderate	51.365 \| good	0.785 \| good	5.57 \| good	0.243 \| good
2025-06-06T01:00:00.000Z	139 \| sensitive	47.215 \| moderate	231.089 \| moderate	49.556 \| good	1.136 \| good	11.121 \| good	0.242 \| good
2025-06-06T02:00:00.000Z	103 \| sensitive	26.831 \| fine	159.186 \| moderate	49.097 \| good	2.917 \| good	8.228 \| good	0.242 \| good
2025-06-06T03:00:00.000Z	98 \| moderate	25.714 \| fine	149.167 \| fine	46.115 \| good	2.975 \| good	7.732 \| good	0.291 \| good
2025-06-06T04:00:00.000Z	103 \| sensitive	35.99 \| moderate	159.961 \| moderate	46.19 \| good	3.09 \| good	2.808 \| good	0.291 \| good
2025-06-06T05:00:00.000Z	110 \| sensitive	39.015 \| moderate	99.832 \| fine	43.078 \| good	1.33 \| good	5.423 \| good	0.324 \| good
2025-06-06T06:00:00.000Z	105 \| sensitive	37.207 \| moderate	164.48 \| moderate	42.191 \| good	1.049 \| good	10.748 \| good	0.34 \| good
2025-06-06T07:00:00.000Z	99 \| moderate	35.197 \| fine	127.226 \| fine	45.087 \| good	0.407 \| good	9.084 \| good	0.309 \| good
2025-06-06T08:00:00.000Z	105 \| sensitive	36.803 \| moderate	141.035 \| fine	39.889 \| good	0.31 \| good	9.272 \| good	0.309 \| good
2025-06-06T09:00:00.000Z	102 \| sensitive	35.652 \| moderate	91.521 \| fine	36.24 \| good	0.34 \| good	12.705 \| good	0.309 \| good
2025-06-06T10:00:00.000Z	112 \| sensitive	38.791 \| moderate	177.339 \| moderate	41.327 \| good	1.691 \| good	12.063 \| good	0.309 \| good
2025-06-06T11:00:00.000Z	94 \| moderate	31.25 \| fine	141.048 \| fine	41.926 \| good	0.415 \| good	13.672 \| good	0.351 \| good
2025-06-06T12:00:00.000Z	102 \| sensitive	36.295 \| moderate	153.17 \| fine	29.672 \| good	0.367 \| good	9.883 \| good	0.348 \| good
2025-06-06T13:00:00.000Z	110 \| sensitive	39.378 \| moderate	168.924 \| moderate	29.785 \| good	0.373 \| good	6.021 \| good	0.321 \| good
2025-06-06T14:00:00.000Z	110 \| sensitive	38.344 \| moderate	174.25 \| moderate	28.269 \| good	0.346 \| good	11.488 \| good	0.473 \| good
2025-06-06T15:00:00.000Z	107 \| sensitive	38.009 \| moderate	167.542 \| moderate	36.168 \| good	0.462 \| good	6.948 \| good	0.332 \| good
2025-06-06T16:00:00.000Z	111 \| sensitive	37.998 \| moderate	176.307 \| moderate	41.259 \| good	0.976 \| good	2.734 \| good	0.271 \| good
2025-06-06T17:00:00.000Z	103 \| sensitive	34.743 \| fine	160.049 \| moderate	42.277 \| good	0.832 \| good	2.721 \| good	0.271 \| good
2025-06-06T18:00:00.000Z	107 \| sensitive	37.821 \| moderate	125.213 \| fine	53.02 \| good	0.518 \| good	2.078 \| good	0.271 \| good
2025-06-06T19:00:00.000Z	92 \| moderate	31.235 \| fine	103.196 \| fine	55.711 \| fine	1.342 \| good	2.481 \| good	0.255 \| good
2025-06-06T20:00:00.000Z	112 \| sensitive	40.075 \| moderate	139.484 \| fine	50.381 \| good	0.627 \| good	1.65 \| good	0.255 \| good
2025-06-06T21:00:00.000Z	81 \| moderate	24.53 \| fine	80.997 \| fine	59.552 \| fine	0.508 \| good	1.364 \| good	0.255 \| good
2025-06-06T22:00:00.000Z	107 \| sensitive	37.859 \| moderate	165.618 \| moderate	61.159 \| fine	0.519 \| good	4.538 \| good	0.232 \| good
2025-06-06T23:00:00.000Z	86 \| moderate	27.996 \| fine	80.181 \| fine	62.262 \| fine	0.522 \| good	7.86 \| good	0.232 \| good
2025-06-07T00:00:00.000Z	90 \| moderate	29.794 \| fine	62.596 \| fine	60.424 \| fine	0.595 \| good	6.126 \| good	0.259 \| good
2025-06-07T01:00:00.000Z	102 \| sensitive	36.008 \| moderate	141.441 \| fine	64.334 \| fine	1.504 \| good	9.724 \| good	0.275 \| good
2025-06-07T02:00:00.000Z	103 \| sensitive	35.878 \| moderate	158.508 \| moderate	61.227 \| fine	1.178 \| good	11.942 \| good	0.275 \| good
2025-06-07T03:00:00.000Z	81 \| moderate	25.236 \| fine	94.47 \| fine	57.217 \| fine	0.92 \| good	10.719 \| good	0.291 \| good
2025-06-07T04:00:00.000Z	90 \| moderate	30.249 \| fine	126.505 \| fine	56.67 \| fine	0.898 \| good	7.401 \| good	0.275 \| good
2025-06-07T05:00:00.000Z	86 \| moderate	28.31 \| fine	125.744 \| fine	55.097 \| fine	0.391 \| good	7.162 \| good	0.275 \| good
2025-06-07T06:00:00.000Z	88 \| moderate	28.503 \| fine	129.051 \| fine	54.848 \| good	0.349 \| good	6.728 \| good	0.275 \| good
2025-06-07T07:00:00.000Z	86 \| moderate	28.206 \| fine	121.222 \| fine	42.611 \| good	0.279 \| good	5.68 \| good	0.275 \| good
2025-06-07T08:00:00.000Z	81 \| moderate	24.633 \| fine	104.058 \| fine	42.614 \| good	0.248 \| good	7.531 \| good	0.255 \| good
2025-06-07T09:00:00.000Z	75 \| moderate	21.84 \| fine	82.102 \| fine	38.64 \| good	0.231 \| good	6.669 \| good	0.294 \| good
2025-06-07T10:00:00.000Z	69 \| moderate	19.071 \| fine	63.572 \| fine	43.996 \| good	0.214 \| good	4.15 \| good	0.294 \| good
2025-06-07T11:00:00.000Z	74 \| moderate	20.247 \| fine	100.784 \| fine	28.318 \| good	0.249 \| good	5.115 \| good	0.294 \| good
2025-06-07T11:00:00.000Z	79 \| moderate	24.194 \| fine	106.077 \| fine	33.456 \| good	0.206 \| good	4.163 \| good	0.29 \| good
2025-06-07T12:00:00.000Z	69 \| moderate	18.948 \| fine	83.86 \| fine	22.847 \| good	1.088 \| good	6.827 \| good	0.234 \| good
2025-06-07T13:00:00.000Z	79 \| moderate	24.253 \| fine	106.076 \| fine	27.521 \| good	1.672 \| good	5.087 \| good	0.212 \| good
2025-06-07T14:00:00.000Z	92 \| moderate	30.95 \| fine	134.033 \| fine	37.74 \| good	1.464 \| good	4.838 \| good	0.211 \| good
2025-06-07T15:00:00.000Z	84 \| moderate	26.832 \| fine	117.131 \| fine	42.659 \| good	1.256 \| good	4.59 \| good	0.21 \| good
2025-06-07T16:00:00.000Z	73 \| moderate	20.684 \| fine	90.764 \| fine	47.823 \| good	1.187 \| good	2.184 \| good	0.184 \| good
2025-06-07T17:00:00.000Z	71 \| moderate	19.515 \| fine	86.108 \| fine	49.172 \| good	1.081 \| good	2.139 \| good	0.186 \| good
2025-06-07T18:00:00.000Z	67 \| moderate	17.799 \| fine	78.53 \| fine	49.315 \| good	0.974 \| good	2.094 \| good	0.188 \| good
2025-06-07T19:00:00.000Z	60 \| moderate	14.231 \| fine	63.625 \| fine	45.637 \| good	1.294 \| good	3.096 \| good	0.198 \| good
2025-06-07T20:00:00.000Z	60 \| moderate	13.918 \| fine	62.356 \| fine	46.458 \| good	1.17 \| good	3.159 \| good	0.2 \| good
2025-06-07T21:00:00.000Z	58 \| moderate	12.909 \| fine	57.384 \| fine	45.336 \| good	1.046 \| good	3.222 \| good	0.201 \| good
2025-06-07T22:00:00.000Z	56 \| moderate	11.637 \| good	51.497 \| good	46.251 \| good	1.841 \| good	10.86 \| good	0.247 \| good
2025-06-07T23:00:00.000Z	49 \| good	9.152 \| good	40.124 \| good	44.638 \| good	1.658 \| good	10.839 \| good	0.247 \| good
2025-06-08T00:00:00.000Z	52 \| moderate	9.926 \| good	43.998 \| good	41.096 \| good	1.475 \| good	10.819 \| good	0.248 \| good
2025-06-08T01:00:00.000Z	58 \| moderate	13.254 \| fine	59.177 \| fine	37.537 \| good	1.842 \| good	13.726 \| good	0.256 \| good
2025-06-08T02:00:00.000Z	67 \| moderate	17.704 \| fine	78.984 \| fine	35.208 \| good	1.6 \| good	12.487 \| good	0.25 \| good
2025-06-08T03:00:00.000Z	67 \| moderate	17.799 \| fine	78.457 \| fine	33.016 \| good	1.357 \| good	11.247 \| good	0.243 \| good
2025-06-08T04:00:00.000Z	64 \| moderate	15.848 \| fine	70.232 \| fine	34.679 \| good	1.69 \| good	15.939 \| good	0.272 \| good
2025-06-08T05:00:00.000Z	62 \| moderate	14.675 \| fine	65.626 \| fine	37.79 \| good	1.492 \| good	14.802 \| good	0.267 \| good
2025-06-08T06:00:00.000Z	62 \| moderate	14.582 \| fine	64.971 \| fine	38.523 \| good	1.295 \| good	13.665 \| good	0.262 \| good
2025-06-08T07:00:00.000Z	56 \| moderate	12.161 \| fine	54.246 \| good	35.699 \| good	1.82 \| good	18.61 \| good	0.276 \| good
2025-06-08T08:00:00.000Z	58 \| moderate	12.873 \| fine	57.964 \| fine	30.757 \| good	1.664 \| good	17.54 \| good	0.271 \| good
2025-06-08T09:00:00.000Z	58 \| moderate	13.073 \| fine	58.426 \| fine	31.063 \| good	1.508 \| good	16.47 \| good	0.265 \| good
2025-06-08T10:00:00.000Z	52 \| moderate	9.689 \| good	43.259 \| good	33.994 \| good	2.164 \| good	15.877 \| good	0.304 \| good
2025-06-08T11:00:00.000Z	44 \| good	8.481 \| good	37.369 \| good	33.344 \| good	2.105 \| good	15.146 \| good	0.301 \| good
2025-06-08T12:00:00.000Z	33 \| good	5.58 \| good	24.189 \| good	33.19 \| good	2.045 \| good	14.415 \| good	0.299 \| good
2025-06-08T13:00:00.000Z	31 \| good	4.163 \| good	18.297 \| good	32.712 \| good	2.822 \| good	4.812 \| good	0.256 \| good
2025-06-08T14:00:00.000Z	49 \| good	8.73 \| good	38.076 \| good	38.918 \| good	3.124 \| good	5.222 \| good	0.268 \| good
2025-06-08T15:00:00.000Z	45 \| good	7.334 \| good	32.313 \| good	49.43 \| good	3.425 \| good	5.631 \| good	0.28 \| good
2025-06-08T16:00:00.000Z	49 \| good	6.107 \| good	26.899 \| good	52.962 \| good	1.14 \| good	1.321 \| good	0.198 \| good
2025-06-08T17:00:00.000Z	58 \| moderate	6.832 \| good	30.389 \| good	57.111 \| fine	1.302 \| good	1.422 \| good	0.207 \| good
2025-06-08T18:00:00.000Z	50 \| good	6.348 \| good	28.239 \| good	53.95 \| good	1.463 \| good	1.522 \| good	0.216 \| good
2025-06-08T19:00:00.000Z	43 \| good	4.977 \| good	21.636 \| good	46.479 \| good	0.635 \| good	1.364 \| good	0.165 \| good
2025-06-08T20:00:00.000Z	34 \| good	5.717 \| good	25.07 \| good	37.32 \| good	0.706 \| good	1.465 \| good	0.17 \| good
2025-06-08T21:00:00.000Z	31 \| good	5.081 \| good	22.019 \| good	33.973 \| good	0.776 \| good	1.566 \| good	0.175 \| good
2025-06-08T22:00:00.000Z	36 \| good	4.636 \| good	20.258 \| good	38.661 \| good	0.63 \| good	4.047 \| good	0.172 \| good
2025-06-08T23:00:00.000Z	35 \| good	4.308 \| good	18.729 \| good	37.863 \| good	0.672 \| good	4.352 \| good	0.175 \| good
2025-06-09T00:00:00.000Z	34 \| good	2.928 \| good	11.921 \| good	36.764 \| good	0.713 \| good	4.658 \| good	0.179 \| good
2025-06-09T01:00:00.000Z	44 \| good	8.417 \| good	36.758 \| good	34.57 \| good	0.83 \| good	6.234 \| good	0.181 \| good
2025-06-09T02:00:00.000Z	56 \| moderate	11.665 \| good	52.251 \| good	29.178 \| good	0.9 \| good	6.66 \| good	0.185 \| good
2025-06-09T03:00:00.000Z	58 \| moderate	13.227 \| fine	59.448 \| fine	23.337 \| good	0.97 \| good	7.085 \| good	0.188 \| good
2025-06-09T04:00:00.000Z	44 \| good	8.475 \| good	37.298 \| good	23.283 \| good	0.732 \| good	5.544 \| good	0.177 \| good
2025-06-09T05:00:00.000Z	27 \| good	4.859 \| good	21.119 \| good	23.463 \| good	0.816 \| good	5.808 \| good	0.18 \| good
2025-06-09T06:00:00.000Z	49 \| good	8.501 \| good	8.777 \| good	34.937 \| good	0.901 \| good	6.076 \| good	0.183 \| good
2025-06-09T07:00:00.000Z	27 \| good	5.061 \| good	21.901 \| good	17.928 \| good	0.775 \| good	7.487 \| good	0.175 \| good
2025-06-09T08:00:00.000Z	33 \| good	6.19 \| good	27.172 \| good	14.545 \| good	0.858 \| good	7.254 \| good	0.176 \| good
2025-06-09T09:00:00.000Z	33 \| good	6.152 \| good	26.923 \| good	12.245 \| good	0.941 \| good	7.02 \| good	0.177 \| good
2025-06-09T10:00:00.000Z	16 \| good	3.303 \| good	14.296 \| good	6.925 \| good	0.891 \| good	6.768 \| good	0.185 \| good
2025-06-09T11:00:00.000Z	11 \| good	2.34 \| good	9.763 \| good	9.003 \| good	1.001 \| good	6.759 \| good	0.186 \| good

Markham

Get reliable air quality data to drive your business

Markham, 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

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Frequently asked questions

How often is air quality information updated for Markham, Illinois?

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

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

In the past 24 hours, the air quality in Markham, Illinois was at its worst at 08:00:00 on 2025-06-06.

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

In the last 24 hours, the best air quality in Markham, Illinois was observed at 10:00:00 on 2025-06-07.

What is the AQI in Markham, Illinois right now?

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

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

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

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

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

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

PM_2.5 levels in Markham, Illinois are currently 24.194 μg/m³.

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

The PM₁₀ concentration in Markham, Illinois is 106.077 μg/m³ at the moment.

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

The current carbon monoxide (CO) concentration in Markham, Illinois is 0.29 ppm.

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

Currently, Markham, Illinois has a sulfur dioxide (SO₂) concentration of 0.206 ppb.

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

The current ozone (O₃) level in Markham, Illinois at the moment is 33.456 ppm.

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

Nitrogen dioxide (NO₂) level in Markham, Illinois at the moment is 4.163 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-05T12:00:00.000Z	152 \| unhealthy	57.051 \| poor	175.553 \| moderate	26.542 \| good	0.337 \| good	9.786 \| good	0.476 \| good
2025-06-05T13:00:00.000Z	155 \| unhealthy	60.522 \| poor	234.353 \| moderate	19.973 \| good	0.381 \| good	9.148 \| good	0.422 \| good
2025-06-05T14:00:00.000Z	147 \| sensitive	53.667 \| moderate	243.102 \| moderate	23.511 \| good	0.368 \| good	6.117 \| good	0.398 \| good
2025-06-05T15:00:00.000Z	152 \| unhealthy	57.196 \| poor	252.349 \| moderate	32.481 \| good	0.346 \| good	4.448 \| good	0.397 \| good
2025-06-05T16:00:00.000Z	157 \| unhealthy	64.007 \| poor	249.121 \| moderate	35.003 \| good	0.813 \| good	4.323 \| good	0.381 \| good
2025-06-05T17:00:00.000Z	153 \| unhealthy	57.686 \| poor	246.112 \| moderate	42.699 \| good	2.916 \| good	4.772 \| good	0.386 \| good
2025-06-05T18:00:00.000Z	84 \| moderate	27.089 \| fine	35.166 \| good	41.946 \| good	1.411 \| good	3.559 \| good	0.355 \| good
2025-06-05T19:00:00.000Z	64 \| moderate	15.899 \| fine	22.599 \| good	44.242 \| good	1.521 \| good	0.94 \| good	0.304 \| good
2025-06-05T20:00:00.000Z	44 \| good	4.8 \| good	22.315 \| good	47.385 \| good	0.999 \| good	3.181 \| good	0.281 \| good
2025-06-05T21:00:00.000Z	122 \| sensitive	43.596 \| moderate	113.457 \| fine	50.456 \| good	0.992 \| good	3.649 \| good	0.266 \| good
2025-06-05T22:00:00.000Z	122 \| sensitive	44.134 \| moderate	66.766 \| fine	53.289 \| good	0.448 \| good	4.924 \| good	0.266 \| good
2025-06-05T23:00:00.000Z	122 \| sensitive	44.045 \| moderate	153.498 \| fine	53.696 \| good	0.385 \| good	6.587 \| good	0.243 \| good
2025-06-06T00:00:00.000Z	144 \| sensitive	53.491 \| moderate	229.447 \| moderate	51.365 \| good	0.785 \| good	5.57 \| good	0.243 \| good
2025-06-06T01:00:00.000Z	139 \| sensitive	47.215 \| moderate	231.089 \| moderate	49.556 \| good	1.136 \| good	11.121 \| good	0.242 \| good
2025-06-06T02:00:00.000Z	103 \| sensitive	26.831 \| fine	159.186 \| moderate	49.097 \| good	2.917 \| good	8.228 \| good	0.242 \| good
2025-06-06T03:00:00.000Z	98 \| moderate	25.714 \| fine	149.167 \| fine	46.115 \| good	2.975 \| good	7.732 \| good	0.291 \| good
2025-06-06T04:00:00.000Z	103 \| sensitive	35.99 \| moderate	159.961 \| moderate	46.19 \| good	3.09 \| good	2.808 \| good	0.291 \| good
2025-06-06T05:00:00.000Z	110 \| sensitive	39.015 \| moderate	99.832 \| fine	43.078 \| good	1.33 \| good	5.423 \| good	0.324 \| good
2025-06-06T06:00:00.000Z	105 \| sensitive	37.207 \| moderate	164.48 \| moderate	42.191 \| good	1.049 \| good	10.748 \| good	0.34 \| good
2025-06-06T07:00:00.000Z	99 \| moderate	35.197 \| fine	127.226 \| fine	45.087 \| good	0.407 \| good	9.084 \| good	0.309 \| good
2025-06-06T08:00:00.000Z	105 \| sensitive	36.803 \| moderate	141.035 \| fine	39.889 \| good	0.31 \| good	9.272 \| good	0.309 \| good
2025-06-06T09:00:00.000Z	102 \| sensitive	35.652 \| moderate	91.521 \| fine	36.24 \| good	0.34 \| good	12.705 \| good	0.309 \| good
2025-06-06T10:00:00.000Z	112 \| sensitive	38.791 \| moderate	177.339 \| moderate	41.327 \| good	1.691 \| good	12.063 \| good	0.309 \| good
2025-06-06T11:00:00.000Z	94 \| moderate	31.25 \| fine	141.048 \| fine	41.926 \| good	0.415 \| good	13.672 \| good	0.351 \| good
2025-06-06T12:00:00.000Z	102 \| sensitive	36.295 \| moderate	153.17 \| fine	29.672 \| good	0.367 \| good	9.883 \| good	0.348 \| good
2025-06-06T13:00:00.000Z	110 \| sensitive	39.378 \| moderate	168.924 \| moderate	29.785 \| good	0.373 \| good	6.021 \| good	0.321 \| good
2025-06-06T14:00:00.000Z	110 \| sensitive	38.344 \| moderate	174.25 \| moderate	28.269 \| good	0.346 \| good	11.488 \| good	0.473 \| good
2025-06-06T15:00:00.000Z	107 \| sensitive	38.009 \| moderate	167.542 \| moderate	36.168 \| good	0.462 \| good	6.948 \| good	0.332 \| good
2025-06-06T16:00:00.000Z	111 \| sensitive	37.998 \| moderate	176.307 \| moderate	41.259 \| good	0.976 \| good	2.734 \| good	0.271 \| good
2025-06-06T17:00:00.000Z	103 \| sensitive	34.743 \| fine	160.049 \| moderate	42.277 \| good	0.832 \| good	2.721 \| good	0.271 \| good
2025-06-06T18:00:00.000Z	107 \| sensitive	37.821 \| moderate	125.213 \| fine	53.02 \| good	0.518 \| good	2.078 \| good	0.271 \| good
2025-06-06T19:00:00.000Z	92 \| moderate	31.235 \| fine	103.196 \| fine	55.711 \| fine	1.342 \| good	2.481 \| good	0.255 \| good
2025-06-06T20:00:00.000Z	112 \| sensitive	40.075 \| moderate	139.484 \| fine	50.381 \| good	0.627 \| good	1.65 \| good	0.255 \| good
2025-06-06T21:00:00.000Z	81 \| moderate	24.53 \| fine	80.997 \| fine	59.552 \| fine	0.508 \| good	1.364 \| good	0.255 \| good
2025-06-06T22:00:00.000Z	107 \| sensitive	37.859 \| moderate	165.618 \| moderate	61.159 \| fine	0.519 \| good	4.538 \| good	0.232 \| good
2025-06-06T23:00:00.000Z	86 \| moderate	27.996 \| fine	80.181 \| fine	62.262 \| fine	0.522 \| good	7.86 \| good	0.232 \| good
2025-06-07T00:00:00.000Z	90 \| moderate	29.794 \| fine	62.596 \| fine	60.424 \| fine	0.595 \| good	6.126 \| good	0.259 \| good
2025-06-07T01:00:00.000Z	102 \| sensitive	36.008 \| moderate	141.441 \| fine	64.334 \| fine	1.504 \| good	9.724 \| good	0.275 \| good
2025-06-07T02:00:00.000Z	103 \| sensitive	35.878 \| moderate	158.508 \| moderate	61.227 \| fine	1.178 \| good	11.942 \| good	0.275 \| good
2025-06-07T03:00:00.000Z	81 \| moderate	25.236 \| fine	94.47 \| fine	57.217 \| fine	0.92 \| good	10.719 \| good	0.291 \| good
2025-06-07T04:00:00.000Z	90 \| moderate	30.249 \| fine	126.505 \| fine	56.67 \| fine	0.898 \| good	7.401 \| good	0.275 \| good
2025-06-07T05:00:00.000Z	86 \| moderate	28.31 \| fine	125.744 \| fine	55.097 \| fine	0.391 \| good	7.162 \| good	0.275 \| good
2025-06-07T06:00:00.000Z	88 \| moderate	28.503 \| fine	129.051 \| fine	54.848 \| good	0.349 \| good	6.728 \| good	0.275 \| good
2025-06-07T07:00:00.000Z	86 \| moderate	28.206 \| fine	121.222 \| fine	42.611 \| good	0.279 \| good	5.68 \| good	0.275 \| good
2025-06-07T08:00:00.000Z	81 \| moderate	24.633 \| fine	104.058 \| fine	42.614 \| good	0.248 \| good	7.531 \| good	0.255 \| good
2025-06-07T09:00:00.000Z	75 \| moderate	21.84 \| fine	82.102 \| fine	38.64 \| good	0.231 \| good	6.669 \| good	0.294 \| good
2025-06-07T10:00:00.000Z	69 \| moderate	19.071 \| fine	63.572 \| fine	43.996 \| good	0.214 \| good	4.15 \| good	0.294 \| good
2025-06-07T11:00:00.000Z	74 \| moderate	20.247 \| fine	100.784 \| fine	28.318 \| good	0.249 \| good	5.115 \| good	0.294 \| good
2025-06-07T11:00:00.000Z	79 \| moderate	24.194 \| fine	106.077 \| fine	33.456 \| good	0.206 \| good	4.163 \| good	0.29 \| good
2025-06-07T12:00:00.000Z	69 \| moderate	18.948 \| fine	83.86 \| fine	22.847 \| good	1.088 \| good	6.827 \| good	0.234 \| good
2025-06-07T13:00:00.000Z	79 \| moderate	24.253 \| fine	106.076 \| fine	27.521 \| good	1.672 \| good	5.087 \| good	0.212 \| good
2025-06-07T14:00:00.000Z	92 \| moderate	30.95 \| fine	134.033 \| fine	37.74 \| good	1.464 \| good	4.838 \| good	0.211 \| good
2025-06-07T15:00:00.000Z	84 \| moderate	26.832 \| fine	117.131 \| fine	42.659 \| good	1.256 \| good	4.59 \| good	0.21 \| good
2025-06-07T16:00:00.000Z	73 \| moderate	20.684 \| fine	90.764 \| fine	47.823 \| good	1.187 \| good	2.184 \| good	0.184 \| good
2025-06-07T17:00:00.000Z	71 \| moderate	19.515 \| fine	86.108 \| fine	49.172 \| good	1.081 \| good	2.139 \| good	0.186 \| good
2025-06-07T18:00:00.000Z	67 \| moderate	17.799 \| fine	78.53 \| fine	49.315 \| good	0.974 \| good	2.094 \| good	0.188 \| good
2025-06-07T19:00:00.000Z	60 \| moderate	14.231 \| fine	63.625 \| fine	45.637 \| good	1.294 \| good	3.096 \| good	0.198 \| good
2025-06-07T20:00:00.000Z	60 \| moderate	13.918 \| fine	62.356 \| fine	46.458 \| good	1.17 \| good	3.159 \| good	0.2 \| good
2025-06-07T21:00:00.000Z	58 \| moderate	12.909 \| fine	57.384 \| fine	45.336 \| good	1.046 \| good	3.222 \| good	0.201 \| good
2025-06-07T22:00:00.000Z	56 \| moderate	11.637 \| good	51.497 \| good	46.251 \| good	1.841 \| good	10.86 \| good	0.247 \| good
2025-06-07T23:00:00.000Z	49 \| good	9.152 \| good	40.124 \| good	44.638 \| good	1.658 \| good	10.839 \| good	0.247 \| good
2025-06-08T00:00:00.000Z	52 \| moderate	9.926 \| good	43.998 \| good	41.096 \| good	1.475 \| good	10.819 \| good	0.248 \| good
2025-06-08T01:00:00.000Z	58 \| moderate	13.254 \| fine	59.177 \| fine	37.537 \| good	1.842 \| good	13.726 \| good	0.256 \| good
2025-06-08T02:00:00.000Z	67 \| moderate	17.704 \| fine	78.984 \| fine	35.208 \| good	1.6 \| good	12.487 \| good	0.25 \| good
2025-06-08T03:00:00.000Z	67 \| moderate	17.799 \| fine	78.457 \| fine	33.016 \| good	1.357 \| good	11.247 \| good	0.243 \| good
2025-06-08T04:00:00.000Z	64 \| moderate	15.848 \| fine	70.232 \| fine	34.679 \| good	1.69 \| good	15.939 \| good	0.272 \| good
2025-06-08T05:00:00.000Z	62 \| moderate	14.675 \| fine	65.626 \| fine	37.79 \| good	1.492 \| good	14.802 \| good	0.267 \| good
2025-06-08T06:00:00.000Z	62 \| moderate	14.582 \| fine	64.971 \| fine	38.523 \| good	1.295 \| good	13.665 \| good	0.262 \| good
2025-06-08T07:00:00.000Z	56 \| moderate	12.161 \| fine	54.246 \| good	35.699 \| good	1.82 \| good	18.61 \| good	0.276 \| good
2025-06-08T08:00:00.000Z	58 \| moderate	12.873 \| fine	57.964 \| fine	30.757 \| good	1.664 \| good	17.54 \| good	0.271 \| good
2025-06-08T09:00:00.000Z	58 \| moderate	13.073 \| fine	58.426 \| fine	31.063 \| good	1.508 \| good	16.47 \| good	0.265 \| good
2025-06-08T10:00:00.000Z	52 \| moderate	9.689 \| good	43.259 \| good	33.994 \| good	2.164 \| good	15.877 \| good	0.304 \| good
2025-06-08T11:00:00.000Z	44 \| good	8.481 \| good	37.369 \| good	33.344 \| good	2.105 \| good	15.146 \| good	0.301 \| good
2025-06-08T12:00:00.000Z	33 \| good	5.58 \| good	24.189 \| good	33.19 \| good	2.045 \| good	14.415 \| good	0.299 \| good
2025-06-08T13:00:00.000Z	31 \| good	4.163 \| good	18.297 \| good	32.712 \| good	2.822 \| good	4.812 \| good	0.256 \| good
2025-06-08T14:00:00.000Z	49 \| good	8.73 \| good	38.076 \| good	38.918 \| good	3.124 \| good	5.222 \| good	0.268 \| good
2025-06-08T15:00:00.000Z	45 \| good	7.334 \| good	32.313 \| good	49.43 \| good	3.425 \| good	5.631 \| good	0.28 \| good
2025-06-08T16:00:00.000Z	49 \| good	6.107 \| good	26.899 \| good	52.962 \| good	1.14 \| good	1.321 \| good	0.198 \| good
2025-06-08T17:00:00.000Z	58 \| moderate	6.832 \| good	30.389 \| good	57.111 \| fine	1.302 \| good	1.422 \| good	0.207 \| good
2025-06-08T18:00:00.000Z	50 \| good	6.348 \| good	28.239 \| good	53.95 \| good	1.463 \| good	1.522 \| good	0.216 \| good
2025-06-08T19:00:00.000Z	43 \| good	4.977 \| good	21.636 \| good	46.479 \| good	0.635 \| good	1.364 \| good	0.165 \| good
2025-06-08T20:00:00.000Z	34 \| good	5.717 \| good	25.07 \| good	37.32 \| good	0.706 \| good	1.465 \| good	0.17 \| good
2025-06-08T21:00:00.000Z	31 \| good	5.081 \| good	22.019 \| good	33.973 \| good	0.776 \| good	1.566 \| good	0.175 \| good
2025-06-08T22:00:00.000Z	36 \| good	4.636 \| good	20.258 \| good	38.661 \| good	0.63 \| good	4.047 \| good	0.172 \| good
2025-06-08T23:00:00.000Z	35 \| good	4.308 \| good	18.729 \| good	37.863 \| good	0.672 \| good	4.352 \| good	0.175 \| good
2025-06-09T00:00:00.000Z	34 \| good	2.928 \| good	11.921 \| good	36.764 \| good	0.713 \| good	4.658 \| good	0.179 \| good
2025-06-09T01:00:00.000Z	44 \| good	8.417 \| good	36.758 \| good	34.57 \| good	0.83 \| good	6.234 \| good	0.181 \| good
2025-06-09T02:00:00.000Z	56 \| moderate	11.665 \| good	52.251 \| good	29.178 \| good	0.9 \| good	6.66 \| good	0.185 \| good
2025-06-09T03:00:00.000Z	58 \| moderate	13.227 \| fine	59.448 \| fine	23.337 \| good	0.97 \| good	7.085 \| good	0.188 \| good
2025-06-09T04:00:00.000Z	44 \| good	8.475 \| good	37.298 \| good	23.283 \| good	0.732 \| good	5.544 \| good	0.177 \| good
2025-06-09T05:00:00.000Z	27 \| good	4.859 \| good	21.119 \| good	23.463 \| good	0.816 \| good	5.808 \| good	0.18 \| good
2025-06-09T06:00:00.000Z	49 \| good	8.501 \| good	8.777 \| good	34.937 \| good	0.901 \| good	6.076 \| good	0.183 \| good
2025-06-09T07:00:00.000Z	27 \| good	5.061 \| good	21.901 \| good	17.928 \| good	0.775 \| good	7.487 \| good	0.175 \| good
2025-06-09T08:00:00.000Z	33 \| good	6.19 \| good	27.172 \| good	14.545 \| good	0.858 \| good	7.254 \| good	0.176 \| good
2025-06-09T09:00:00.000Z	33 \| good	6.152 \| good	26.923 \| good	12.245 \| good	0.941 \| good	7.02 \| good	0.177 \| good
2025-06-09T10:00:00.000Z	16 \| good	3.303 \| good	14.296 \| good	6.925 \| good	0.891 \| good	6.768 \| good	0.185 \| good
2025-06-09T11:00:00.000Z	11 \| good	2.34 \| good	9.763 \| good	9.003 \| good	1.001 \| good	6.759 \| good	0.186 \| good

Real-time air quality index in Markham, Illinois today

Major air pollutants in Markham, Illinois

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Markham, Illinois air quality forecast and history

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

Air quality in nearby cities

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Air quality levels in US

Frequently asked questions

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

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

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

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

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

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

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

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

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

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