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

Currently, Romeoville, Illinois has a sulfur dioxide (SO2) concentration of 0.949 ppb.

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

The current ozone (O3) level in Romeoville, Illinois at the moment is 21.744 ppm.

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

Nitrogen dioxide (NO2) level in Romeoville, Illinois at the moment is 11.304 ppb.

Real-time air quality index in Romeoville, Illinois today

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

Stay updated with real-time air quality in Romeoville, 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)

112

Unhealthy for sensitive groups

Romeoville, Illinois

Last updated: ... (Local time)

Major air pollutants in Romeoville, Illinois

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

38.80 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

178.15 μg/m³

155

255

425

605+

Ozone (O₃)

21.74 ppb

201

201+

Sulfur Dioxide (SO₂)

0.95 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

11.30 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.23 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Romeoville, Illinois

Get Live Pollen Counts

Romeoville, Illinois

Scroll To Air Quality Map

Track live Romeoville, Illinois air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-12T17:00:00.000Z	42 \| good	4.248 \| good	18.695 \| good	45.046 \| good	0.525 \| good	3.362 \| good	0.232 \| good
2025-07-12T18:00:00.000Z	44 \| good	4.761 \| good	19.898 \| good	47.776 \| good	0.497 \| good	3.529 \| good	0.216 \| good
2025-07-12T19:00:00.000Z	44 \| good	4.829 \| good	21.278 \| good	47.678 \| good	0.44 \| good	3.219 \| good	0.174 \| good
2025-07-12T20:00:00.000Z	44 \| good	5.331 \| good	22.696 \| good	46.569 \| good	0.433 \| good	2.638 \| good	0.242 \| good
2025-07-12T21:00:00.000Z	44 \| good	5.339 \| good	23.657 \| good	48.18 \| good	0.408 \| good	2.385 \| good	0.202 \| good
2025-07-12T22:00:00.000Z	44 \| good	5.529 \| good	24.636 \| good	46.749 \| good	0.46 \| good	3.777 \| good	0.237 \| good
2025-07-12T23:00:00.000Z	44 \| good	5.763 \| good	25.21 \| good	47.053 \| good	0.439 \| good	3.143 \| good	0.271 \| good
2025-07-13T00:00:00.000Z	42 \| good	4.772 \| good	20.69 \| good	45.276 \| good	0.506 \| good	2.976 \| good	0.268 \| good
2025-07-13T01:00:00.000Z	43 \| good	4.875 \| good	21.488 \| good	46.364 \| good	0.503 \| good	4.063 \| good	0.259 \| good
2025-07-13T02:00:00.000Z	38 \| good	6.217 \| good	24.862 \| good	41.042 \| good	0.489 \| good	4.732 \| good	0.334 \| good
2025-07-13T03:00:00.000Z	33 \| good	5.823 \| good	26.717 \| good	35.712 \| good	0.47 \| good	9.312 \| good	0.318 \| good
2025-07-13T04:00:00.000Z	44 \| good	7.661 \| good	30.643 \| good	35.676 \| good	0.408 \| good	8.61 \| good	0.321 \| good
2025-07-13T05:00:00.000Z	54 \| moderate	10.858 \| good	44.258 \| good	34.002 \| good	0.426 \| good	6.734 \| good	0.352 \| good
2025-07-13T06:00:00.000Z	64 \| moderate	15.741 \| fine	59.246 \| fine	31.896 \| good	0.405 \| good	4.953 \| good	0.299 \| good
2025-07-13T07:00:00.000Z	73 \| moderate	21.379 \| fine	81.595 \| fine	30.805 \| good	0.375 \| good	5.32 \| good	0.296 \| good
2025-07-13T08:00:00.000Z	79 \| moderate	23.653 \| fine	99.154 \| fine	28.679 \| good	0.338 \| good	5.426 \| good	0.228 \| good
2025-07-13T09:00:00.000Z	79 \| moderate	24.086 \| fine	102.478 \| fine	24.675 \| good	0.368 \| good	7.097 \| good	0.239 \| good
2025-07-13T10:00:00.000Z	79 \| moderate	24.32 \| fine	95.582 \| fine	22.415 \| good	0.402 \| good	13.552 \| good	0.256 \| good
2025-07-13T11:00:00.000Z	75 \| moderate	22.433 \| fine	95.908 \| fine	20.807 \| good	0.373 \| good	13.055 \| good	0.228 \| good
2025-07-13T12:00:00.000Z	75 \| moderate	21.689 \| fine	95.901 \| fine	20.059 \| good	0.486 \| good	12.752 \| good	0.207 \| good
2025-07-13T13:00:00.000Z	75 \| moderate	21.856 \| fine	94.642 \| fine	22.659 \| good	0.419 \| good	9.031 \| good	0.238 \| good
2025-07-13T14:00:00.000Z	67 \| moderate	18.399 \| fine	82.674 \| fine	25.53 \| good	0.431 \| good	10.366 \| good	0.21 \| good
2025-07-13T15:00:00.000Z	71 \| moderate	20.265 \| fine	91.345 \| fine	27.921 \| good	0.399 \| good	8.851 \| good	0.27 \| good
2025-07-13T16:00:00.000Z	71 \| moderate	20.246 \| fine	89.771 \| fine	31.633 \| good	0.387 \| good	4.229 \| good	0.29 \| good
2025-07-13T17:00:00.000Z	71 \| moderate	19.688 \| fine	82.115 \| fine	36.563 \| good	0.349 \| good	3.591 \| good	0.357 \| good
2025-07-13T18:00:00.000Z	71 \| moderate	20.046 \| fine	89.282 \| fine	38.823 \| good	0.473 \| good	3.016 \| good	0.359 \| good
2025-07-13T19:00:00.000Z	71 \| moderate	20.461 \| fine	85.033 \| fine	37.664 \| good	0.549 \| good	2.62 \| good	0.387 \| good
2025-07-13T20:00:00.000Z	73 \| moderate	21.485 \| fine	91.923 \| fine	37.476 \| good	0.526 \| good	2.965 \| good	0.387 \| good
2025-07-13T21:00:00.000Z	75 \| moderate	21.62 \| fine	94.987 \| fine	40.391 \| good	0.482 \| good	3.067 \| good	0.387 \| good
2025-07-13T22:00:00.000Z	75 \| moderate	21.752 \| fine	94.645 \| fine	41.617 \| good	0.46 \| good	3.707 \| good	0.438 \| good
2025-07-13T23:00:00.000Z	75 \| moderate	22.181 \| fine	87.22 \| fine	45.755 \| good	0.433 \| good	3.53 \| good	0.418 \| good
2025-07-14T00:00:00.000Z	79 \| moderate	23.838 \| fine	95.232 \| fine	45.905 \| good	0.55 \| good	4.21 \| good	0.45 \| good
2025-07-14T01:00:00.000Z	82 \| moderate	25.795 \| fine	107.298 \| fine	45.485 \| good	0.516 \| good	7.445 \| good	0.464 \| good
2025-07-14T02:00:00.000Z	94 \| moderate	31.755 \| fine	136.226 \| fine	41.667 \| good	0.408 \| good	9.056 \| good	0.47 \| good
2025-07-14T03:00:00.000Z	97 \| moderate	34.112 \| fine	118.403 \| fine	37.971 \| good	0.533 \| good	9.462 \| good	0.483 \| good
2025-07-14T04:00:00.000Z	100 \| moderate	34.57 \| fine	153.23 \| fine	32.856 \| good	0.517 \| good	12.191 \| good	0.44 \| good
2025-07-14T05:00:00.000Z	99 \| moderate	34.755 \| fine	127.913 \| fine	27.816 \| good	0.469 \| good	7.793 \| good	0.4 \| good
2025-07-14T06:00:00.000Z	106 \| sensitive	37.078 \| moderate	165.502 \| moderate	25.012 \| good	0.456 \| good	8.012 \| good	0.372 \| good
2025-07-14T07:00:00.000Z	107 \| sensitive	38.215 \| moderate	161.178 \| moderate	21.836 \| good	0.488 \| good	7.558 \| good	0.318 \| good
2025-07-14T08:00:00.000Z	102 \| sensitive	36.147 \| moderate	141.225 \| fine	17.808 \| good	0.67 \| good	10.823 \| good	0.318 \| good
2025-07-14T09:00:00.000Z	107 \| sensitive	37.781 \| moderate	167.964 \| moderate	15.005 \| good	0.9 \| good	9.22 \| good	0.27 \| good
2025-07-14T10:00:00.000Z	107 \| sensitive	37.84 \| moderate	161.967 \| moderate	12.002 \| good	1.253 \| good	10.073 \| good	0.292 \| good
2025-07-14T11:00:00.000Z	105 \| sensitive	36.674 \| moderate	155.383 \| moderate	9.482 \| good	1.485 \| good	14.162 \| good	0.315 \| good
2025-07-14T12:00:00.000Z	110 \| sensitive	38.593 \| moderate	163.103 \| moderate	9.769 \| good	1.258 \| good	13.981 \| good	0.296 \| good
2025-07-14T13:00:00.000Z	110 \| sensitive	38.545 \| moderate	135.241 \| fine	10.234 \| good	0.912 \| good	13.469 \| good	0.333 \| good
2025-07-14T14:00:00.000Z	107 \| sensitive	38.281 \| moderate	155.972 \| moderate	13.22 \| good	1.236 \| good	15.131 \| good	0.339 \| good
2025-07-14T15:00:00.000Z	113 \| sensitive	39.257 \| moderate	179.002 \| moderate	21.848 \| good	0.961 \| good	11.267 \| good	0.222 \| good
2025-07-14T16:00:00.000Z	112 \| sensitive	38.803 \| moderate	178.152 \| moderate	21.744 \| good	0.949 \| good	11.304 \| good	0.225 \| good
2025-07-14T17:00:00.000Z	67 \| moderate	18.341 \| fine	81.46 \| fine	59.69 \| fine	3.191 \| good	3.222 \| good	0.241 \| good
2025-07-14T18:00:00.000Z	80 \| moderate	20.192 \| fine	89.484 \| fine	64.365 \| fine	3.167 \| good	2.132 \| good	0.238 \| good
2025-07-14T19:00:00.000Z	93 \| moderate	21.495 \| fine	93.97 \| fine	68.471 \| fine	3.102 \| good	2.04 \| good	0.236 \| good
2025-07-14T20:00:00.000Z	105 \| sensitive	22.062 \| fine	97.318 \| fine	72.155 \| moderate	3.037 \| good	1.948 \| good	0.234 \| good
2025-07-14T21:00:00.000Z	108 \| sensitive	21.133 \| fine	92.742 \| fine	73.2 \| moderate	2.973 \| good	1.855 \| good	0.232 \| good
2025-07-14T22:00:00.000Z	100 \| moderate	20.312 \| fine	89.211 \| fine	70.132 \| fine	2.925 \| good	2.734 \| good	0.234 \| good
2025-07-14T23:00:00.000Z	84 \| moderate	19.618 \| fine	86.075 \| fine	64.869 \| fine	2.878 \| good	3.613 \| good	0.237 \| good
2025-07-15T00:00:00.000Z	64 \| moderate	16.343 \| fine	72.224 \| fine	55.028 \| fine	2.83 \| good	4.492 \| good	0.24 \| good
2025-07-15T01:00:00.000Z	66 \| moderate	16.555 \| fine	73.101 \| fine	53.468 \| good	2.79 \| good	9.449 \| good	0.28 \| good
2025-07-15T02:00:00.000Z	69 \| moderate	19.018 \| fine	84.845 \| fine	46.237 \| good	2.75 \| good	14.407 \| good	0.321 \| good
2025-07-15T03:00:00.000Z	71 \| moderate	19.886 \| fine	87.183 \| fine	37.391 \| good	2.71 \| good	19.365 \| good	0.362 \| good
2025-07-15T04:00:00.000Z	75 \| moderate	21.745 \| fine	94.929 \| fine	29.869 \| good	2.747 \| good	17.115 \| good	0.352 \| good
2025-07-15T05:00:00.000Z	77 \| moderate	23.417 \| fine	103.028 \| fine	26.337 \| good	2.783 \| good	14.866 \| good	0.342 \| good
2025-07-15T06:00:00.000Z	79 \| moderate	24.019 \| fine	105.379 \| fine	23.518 \| good	2.82 \| good	12.616 \| good	0.332 \| good
2025-07-15T07:00:00.000Z	81 \| moderate	24.639 \| fine	107.624 \| fine	19.572 \| good	2.703 \| good	10.989 \| good	0.323 \| good
2025-07-15T08:00:00.000Z	81 \| moderate	24.737 \| fine	107.77 \| fine	22.654 \| good	2.585 \| good	9.361 \| good	0.315 \| good
2025-07-15T09:00:00.000Z	81 \| moderate	25.096 \| fine	109.323 \| fine	22.312 \| good	2.468 \| good	7.734 \| good	0.307 \| good
2025-07-15T10:00:00.000Z	82 \| moderate	26.196 \| fine	114.822 \| fine	22.332 \| good	2.425 \| good	8.125 \| good	0.313 \| good
2025-07-15T11:00:00.000Z	81 \| moderate	25.457 \| fine	110.737 \| fine	21.427 \| good	2.383 \| good	8.516 \| good	0.319 \| good
2025-07-15T12:00:00.000Z	81 \| moderate	25.051 \| fine	108.979 \| fine	25.438 \| good	2.34 \| good	8.907 \| good	0.325 \| good
2025-07-15T13:00:00.000Z	75 \| moderate	22.36 \| fine	98.458 \| fine	32.842 \| good	2.265 \| good	7.687 \| good	0.307 \| good
2025-07-15T14:00:00.000Z	71 \| moderate	20.22 \| fine	88.626 \| fine	44.752 \| good	2.189 \| good	6.467 \| good	0.289 \| good
2025-07-15T15:00:00.000Z	73 \| moderate	20.614 \| fine	90.714 \| fine	52.905 \| good	2.114 \| good	5.247 \| good	0.272 \| good
2025-07-15T16:00:00.000Z	71 \| moderate	19.543 \| fine	86.364 \| fine	56.604 \| fine	1.934 \| good	4.028 \| good	0.247 \| good
2025-07-15T17:00:00.000Z	71 \| moderate	15.593 \| fine	69.054 \| fine	61.034 \| fine	1.753 \| good	2.809 \| good	0.222 \| good
2025-07-15T18:00:00.000Z	71 \| moderate	11.998 \| good	53.859 \| good	60.659 \| fine	1.573 \| good	1.59 \| good	0.197 \| good
2025-07-15T19:00:00.000Z	61 \| moderate	10.347 \| good	45.387 \| good	58.344 \| fine	1.53 \| good	1.708 \| good	0.192 \| good
2025-07-15T20:00:00.000Z	54 \| moderate	9.475 \| good	42.097 \| good	55.561 \| fine	1.488 \| good	1.827 \| good	0.187 \| good
2025-07-15T21:00:00.000Z	52 \| moderate	10.154 \| good	45.206 \| good	54.152 \| good	1.445 \| good	1.945 \| good	0.182 \| good
2025-07-15T22:00:00.000Z	54 \| moderate	10.822 \| good	48.287 \| good	53.312 \| good	1.452 \| good	2.934 \| good	0.186 \| good
2025-07-15T23:00:00.000Z	54 \| moderate	11.057 \| good	49.057 \| good	50.37 \| good	1.459 \| good	3.924 \| good	0.189 \| good
2025-07-16T00:00:00.000Z	49 \| good	9.15 \| good	41.114 \| good	44.649 \| good	1.467 \| good	4.913 \| good	0.192 \| good
2025-07-16T01:00:00.000Z	58 \| moderate	12.952 \| fine	57.894 \| fine	37.206 \| good	1.394 \| good	6.543 \| good	0.197 \| good
2025-07-16T02:00:00.000Z	44 \| good	7.55 \| good	33.394 \| good	36.221 \| good	1.322 \| good	8.173 \| good	0.203 \| good
2025-07-16T03:00:00.000Z	31 \| good	4.737 \| good	20.588 \| good	33.684 \| good	1.25 \| good	9.803 \| good	0.208 \| good
2025-07-16T04:00:00.000Z	28 \| good	4.725 \| good	20.606 \| good	29.852 \| good	1.172 \| good	9.363 \| good	0.205 \| good
2025-07-16T05:00:00.000Z	38 \| good	7.3 \| good	31.789 \| good	27.571 \| good	1.094 \| good	8.924 \| good	0.201 \| good
2025-07-16T06:00:00.000Z	49 \| good	9.06 \| good	40.359 \| good	20.854 \| good	1.015 \| good	8.484 \| good	0.198 \| good
2025-07-16T07:00:00.000Z	52 \| moderate	9.981 \| good	44.332 \| good	16.815 \| good	0.902 \| good	7.712 \| good	0.193 \| good
2025-07-16T08:00:00.000Z	44 \| good	8.169 \| good	35.851 \| good	18.295 \| good	0.788 \| good	6.939 \| good	0.187 \| good
2025-07-16T09:00:00.000Z	38 \| good	6.705 \| good	29.764 \| good	21.04 \| good	0.675 \| good	6.167 \| good	0.182 \| good
2025-07-16T10:00:00.000Z	33 \| good	5.914 \| good	26.538 \| good	17.353 \| good	0.628 \| good	5.73 \| good	0.182 \| good
2025-07-16T11:00:00.000Z	33 \| good	5.931 \| good	26.315 \| good	18.347 \| good	0.581 \| good	5.293 \| good	0.182 \| good
2025-07-16T12:00:00.000Z	33 \| good	6.343 \| good	28.045 \| good	21.96 \| good	0.535 \| good	4.857 \| good	0.182 \| good
2025-07-16T13:00:00.000Z	49 \| good	9.016 \| good	40.097 \| good	29.02 \| good	0.635 \| good	4.474 \| good	0.19 \| good
2025-07-16T14:00:00.000Z	54 \| moderate	10.55 \| good	46.571 \| good	38.55 \| good	0.736 \| good	4.09 \| good	0.198 \| good
2025-07-16T15:00:00.000Z	54 \| moderate	11.004 \| good	48.552 \| good	48.111 \| good	0.837 \| good	3.707 \| good	0.206 \| good
2025-07-16T16:00:00.000Z	52 \| moderate	10.47 \| good	46.608 \| good	54.002 \| good	0.948 \| good	3.006 \| good	0.205 \| good

Romeoville

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

0.23ppm

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 Romeoville, Illinois?

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

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

In the past 24 hours, the air quality in Romeoville, Illinois was at its worst at 03:00:00 on 2025-07-14.

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

In the last 24 hours, the best air quality in Romeoville, Illinois was observed at 07:00:00 on 2025-07-13.

What is the AQI in Romeoville, Illinois right now?

As of now, the AQI in Romeoville, Illinois is 112, indicating Unhealthy for Sensitive Groups conditions.

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

Romeoville, Illinois air has the highest levels of PM10.

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

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

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

PM_2.5 levels in Romeoville, Illinois are currently 38.803 μg/m³.

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

The PM₁₀ concentration in Romeoville, Illinois is 178.152 μg/m³ at the moment.

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

The current carbon monoxide (CO) concentration in Romeoville, Illinois is 0.225 ppm.

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

Currently, Romeoville, Illinois has a sulfur dioxide (SO₂) concentration of 0.949 ppb.

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

The current ozone (O₃) level in Romeoville, Illinois at the moment is 21.744 ppm.

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

Nitrogen dioxide (NO₂) level in Romeoville, Illinois at the moment is 11.304 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-12T17:00:00.000Z	42 \| good	4.248 \| good	18.695 \| good	45.046 \| good	0.525 \| good	3.362 \| good	0.232 \| good
2025-07-12T18:00:00.000Z	44 \| good	4.761 \| good	19.898 \| good	47.776 \| good	0.497 \| good	3.529 \| good	0.216 \| good
2025-07-12T19:00:00.000Z	44 \| good	4.829 \| good	21.278 \| good	47.678 \| good	0.44 \| good	3.219 \| good	0.174 \| good
2025-07-12T20:00:00.000Z	44 \| good	5.331 \| good	22.696 \| good	46.569 \| good	0.433 \| good	2.638 \| good	0.242 \| good
2025-07-12T21:00:00.000Z	44 \| good	5.339 \| good	23.657 \| good	48.18 \| good	0.408 \| good	2.385 \| good	0.202 \| good
2025-07-12T22:00:00.000Z	44 \| good	5.529 \| good	24.636 \| good	46.749 \| good	0.46 \| good	3.777 \| good	0.237 \| good
2025-07-12T23:00:00.000Z	44 \| good	5.763 \| good	25.21 \| good	47.053 \| good	0.439 \| good	3.143 \| good	0.271 \| good
2025-07-13T00:00:00.000Z	42 \| good	4.772 \| good	20.69 \| good	45.276 \| good	0.506 \| good	2.976 \| good	0.268 \| good
2025-07-13T01:00:00.000Z	43 \| good	4.875 \| good	21.488 \| good	46.364 \| good	0.503 \| good	4.063 \| good	0.259 \| good
2025-07-13T02:00:00.000Z	38 \| good	6.217 \| good	24.862 \| good	41.042 \| good	0.489 \| good	4.732 \| good	0.334 \| good
2025-07-13T03:00:00.000Z	33 \| good	5.823 \| good	26.717 \| good	35.712 \| good	0.47 \| good	9.312 \| good	0.318 \| good
2025-07-13T04:00:00.000Z	44 \| good	7.661 \| good	30.643 \| good	35.676 \| good	0.408 \| good	8.61 \| good	0.321 \| good
2025-07-13T05:00:00.000Z	54 \| moderate	10.858 \| good	44.258 \| good	34.002 \| good	0.426 \| good	6.734 \| good	0.352 \| good
2025-07-13T06:00:00.000Z	64 \| moderate	15.741 \| fine	59.246 \| fine	31.896 \| good	0.405 \| good	4.953 \| good	0.299 \| good
2025-07-13T07:00:00.000Z	73 \| moderate	21.379 \| fine	81.595 \| fine	30.805 \| good	0.375 \| good	5.32 \| good	0.296 \| good
2025-07-13T08:00:00.000Z	79 \| moderate	23.653 \| fine	99.154 \| fine	28.679 \| good	0.338 \| good	5.426 \| good	0.228 \| good
2025-07-13T09:00:00.000Z	79 \| moderate	24.086 \| fine	102.478 \| fine	24.675 \| good	0.368 \| good	7.097 \| good	0.239 \| good
2025-07-13T10:00:00.000Z	79 \| moderate	24.32 \| fine	95.582 \| fine	22.415 \| good	0.402 \| good	13.552 \| good	0.256 \| good
2025-07-13T11:00:00.000Z	75 \| moderate	22.433 \| fine	95.908 \| fine	20.807 \| good	0.373 \| good	13.055 \| good	0.228 \| good
2025-07-13T12:00:00.000Z	75 \| moderate	21.689 \| fine	95.901 \| fine	20.059 \| good	0.486 \| good	12.752 \| good	0.207 \| good
2025-07-13T13:00:00.000Z	75 \| moderate	21.856 \| fine	94.642 \| fine	22.659 \| good	0.419 \| good	9.031 \| good	0.238 \| good
2025-07-13T14:00:00.000Z	67 \| moderate	18.399 \| fine	82.674 \| fine	25.53 \| good	0.431 \| good	10.366 \| good	0.21 \| good
2025-07-13T15:00:00.000Z	71 \| moderate	20.265 \| fine	91.345 \| fine	27.921 \| good	0.399 \| good	8.851 \| good	0.27 \| good
2025-07-13T16:00:00.000Z	71 \| moderate	20.246 \| fine	89.771 \| fine	31.633 \| good	0.387 \| good	4.229 \| good	0.29 \| good
2025-07-13T17:00:00.000Z	71 \| moderate	19.688 \| fine	82.115 \| fine	36.563 \| good	0.349 \| good	3.591 \| good	0.357 \| good
2025-07-13T18:00:00.000Z	71 \| moderate	20.046 \| fine	89.282 \| fine	38.823 \| good	0.473 \| good	3.016 \| good	0.359 \| good
2025-07-13T19:00:00.000Z	71 \| moderate	20.461 \| fine	85.033 \| fine	37.664 \| good	0.549 \| good	2.62 \| good	0.387 \| good
2025-07-13T20:00:00.000Z	73 \| moderate	21.485 \| fine	91.923 \| fine	37.476 \| good	0.526 \| good	2.965 \| good	0.387 \| good
2025-07-13T21:00:00.000Z	75 \| moderate	21.62 \| fine	94.987 \| fine	40.391 \| good	0.482 \| good	3.067 \| good	0.387 \| good
2025-07-13T22:00:00.000Z	75 \| moderate	21.752 \| fine	94.645 \| fine	41.617 \| good	0.46 \| good	3.707 \| good	0.438 \| good
2025-07-13T23:00:00.000Z	75 \| moderate	22.181 \| fine	87.22 \| fine	45.755 \| good	0.433 \| good	3.53 \| good	0.418 \| good
2025-07-14T00:00:00.000Z	79 \| moderate	23.838 \| fine	95.232 \| fine	45.905 \| good	0.55 \| good	4.21 \| good	0.45 \| good
2025-07-14T01:00:00.000Z	82 \| moderate	25.795 \| fine	107.298 \| fine	45.485 \| good	0.516 \| good	7.445 \| good	0.464 \| good
2025-07-14T02:00:00.000Z	94 \| moderate	31.755 \| fine	136.226 \| fine	41.667 \| good	0.408 \| good	9.056 \| good	0.47 \| good
2025-07-14T03:00:00.000Z	97 \| moderate	34.112 \| fine	118.403 \| fine	37.971 \| good	0.533 \| good	9.462 \| good	0.483 \| good
2025-07-14T04:00:00.000Z	100 \| moderate	34.57 \| fine	153.23 \| fine	32.856 \| good	0.517 \| good	12.191 \| good	0.44 \| good
2025-07-14T05:00:00.000Z	99 \| moderate	34.755 \| fine	127.913 \| fine	27.816 \| good	0.469 \| good	7.793 \| good	0.4 \| good
2025-07-14T06:00:00.000Z	106 \| sensitive	37.078 \| moderate	165.502 \| moderate	25.012 \| good	0.456 \| good	8.012 \| good	0.372 \| good
2025-07-14T07:00:00.000Z	107 \| sensitive	38.215 \| moderate	161.178 \| moderate	21.836 \| good	0.488 \| good	7.558 \| good	0.318 \| good
2025-07-14T08:00:00.000Z	102 \| sensitive	36.147 \| moderate	141.225 \| fine	17.808 \| good	0.67 \| good	10.823 \| good	0.318 \| good
2025-07-14T09:00:00.000Z	107 \| sensitive	37.781 \| moderate	167.964 \| moderate	15.005 \| good	0.9 \| good	9.22 \| good	0.27 \| good
2025-07-14T10:00:00.000Z	107 \| sensitive	37.84 \| moderate	161.967 \| moderate	12.002 \| good	1.253 \| good	10.073 \| good	0.292 \| good
2025-07-14T11:00:00.000Z	105 \| sensitive	36.674 \| moderate	155.383 \| moderate	9.482 \| good	1.485 \| good	14.162 \| good	0.315 \| good
2025-07-14T12:00:00.000Z	110 \| sensitive	38.593 \| moderate	163.103 \| moderate	9.769 \| good	1.258 \| good	13.981 \| good	0.296 \| good
2025-07-14T13:00:00.000Z	110 \| sensitive	38.545 \| moderate	135.241 \| fine	10.234 \| good	0.912 \| good	13.469 \| good	0.333 \| good
2025-07-14T14:00:00.000Z	107 \| sensitive	38.281 \| moderate	155.972 \| moderate	13.22 \| good	1.236 \| good	15.131 \| good	0.339 \| good
2025-07-14T15:00:00.000Z	113 \| sensitive	39.257 \| moderate	179.002 \| moderate	21.848 \| good	0.961 \| good	11.267 \| good	0.222 \| good
2025-07-14T16:00:00.000Z	112 \| sensitive	38.803 \| moderate	178.152 \| moderate	21.744 \| good	0.949 \| good	11.304 \| good	0.225 \| good
2025-07-14T17:00:00.000Z	67 \| moderate	18.341 \| fine	81.46 \| fine	59.69 \| fine	3.191 \| good	3.222 \| good	0.241 \| good
2025-07-14T18:00:00.000Z	80 \| moderate	20.192 \| fine	89.484 \| fine	64.365 \| fine	3.167 \| good	2.132 \| good	0.238 \| good
2025-07-14T19:00:00.000Z	93 \| moderate	21.495 \| fine	93.97 \| fine	68.471 \| fine	3.102 \| good	2.04 \| good	0.236 \| good
2025-07-14T20:00:00.000Z	105 \| sensitive	22.062 \| fine	97.318 \| fine	72.155 \| moderate	3.037 \| good	1.948 \| good	0.234 \| good
2025-07-14T21:00:00.000Z	108 \| sensitive	21.133 \| fine	92.742 \| fine	73.2 \| moderate	2.973 \| good	1.855 \| good	0.232 \| good
2025-07-14T22:00:00.000Z	100 \| moderate	20.312 \| fine	89.211 \| fine	70.132 \| fine	2.925 \| good	2.734 \| good	0.234 \| good
2025-07-14T23:00:00.000Z	84 \| moderate	19.618 \| fine	86.075 \| fine	64.869 \| fine	2.878 \| good	3.613 \| good	0.237 \| good
2025-07-15T00:00:00.000Z	64 \| moderate	16.343 \| fine	72.224 \| fine	55.028 \| fine	2.83 \| good	4.492 \| good	0.24 \| good
2025-07-15T01:00:00.000Z	66 \| moderate	16.555 \| fine	73.101 \| fine	53.468 \| good	2.79 \| good	9.449 \| good	0.28 \| good
2025-07-15T02:00:00.000Z	69 \| moderate	19.018 \| fine	84.845 \| fine	46.237 \| good	2.75 \| good	14.407 \| good	0.321 \| good
2025-07-15T03:00:00.000Z	71 \| moderate	19.886 \| fine	87.183 \| fine	37.391 \| good	2.71 \| good	19.365 \| good	0.362 \| good
2025-07-15T04:00:00.000Z	75 \| moderate	21.745 \| fine	94.929 \| fine	29.869 \| good	2.747 \| good	17.115 \| good	0.352 \| good
2025-07-15T05:00:00.000Z	77 \| moderate	23.417 \| fine	103.028 \| fine	26.337 \| good	2.783 \| good	14.866 \| good	0.342 \| good
2025-07-15T06:00:00.000Z	79 \| moderate	24.019 \| fine	105.379 \| fine	23.518 \| good	2.82 \| good	12.616 \| good	0.332 \| good
2025-07-15T07:00:00.000Z	81 \| moderate	24.639 \| fine	107.624 \| fine	19.572 \| good	2.703 \| good	10.989 \| good	0.323 \| good
2025-07-15T08:00:00.000Z	81 \| moderate	24.737 \| fine	107.77 \| fine	22.654 \| good	2.585 \| good	9.361 \| good	0.315 \| good
2025-07-15T09:00:00.000Z	81 \| moderate	25.096 \| fine	109.323 \| fine	22.312 \| good	2.468 \| good	7.734 \| good	0.307 \| good
2025-07-15T10:00:00.000Z	82 \| moderate	26.196 \| fine	114.822 \| fine	22.332 \| good	2.425 \| good	8.125 \| good	0.313 \| good
2025-07-15T11:00:00.000Z	81 \| moderate	25.457 \| fine	110.737 \| fine	21.427 \| good	2.383 \| good	8.516 \| good	0.319 \| good
2025-07-15T12:00:00.000Z	81 \| moderate	25.051 \| fine	108.979 \| fine	25.438 \| good	2.34 \| good	8.907 \| good	0.325 \| good
2025-07-15T13:00:00.000Z	75 \| moderate	22.36 \| fine	98.458 \| fine	32.842 \| good	2.265 \| good	7.687 \| good	0.307 \| good
2025-07-15T14:00:00.000Z	71 \| moderate	20.22 \| fine	88.626 \| fine	44.752 \| good	2.189 \| good	6.467 \| good	0.289 \| good
2025-07-15T15:00:00.000Z	73 \| moderate	20.614 \| fine	90.714 \| fine	52.905 \| good	2.114 \| good	5.247 \| good	0.272 \| good
2025-07-15T16:00:00.000Z	71 \| moderate	19.543 \| fine	86.364 \| fine	56.604 \| fine	1.934 \| good	4.028 \| good	0.247 \| good
2025-07-15T17:00:00.000Z	71 \| moderate	15.593 \| fine	69.054 \| fine	61.034 \| fine	1.753 \| good	2.809 \| good	0.222 \| good
2025-07-15T18:00:00.000Z	71 \| moderate	11.998 \| good	53.859 \| good	60.659 \| fine	1.573 \| good	1.59 \| good	0.197 \| good
2025-07-15T19:00:00.000Z	61 \| moderate	10.347 \| good	45.387 \| good	58.344 \| fine	1.53 \| good	1.708 \| good	0.192 \| good
2025-07-15T20:00:00.000Z	54 \| moderate	9.475 \| good	42.097 \| good	55.561 \| fine	1.488 \| good	1.827 \| good	0.187 \| good
2025-07-15T21:00:00.000Z	52 \| moderate	10.154 \| good	45.206 \| good	54.152 \| good	1.445 \| good	1.945 \| good	0.182 \| good
2025-07-15T22:00:00.000Z	54 \| moderate	10.822 \| good	48.287 \| good	53.312 \| good	1.452 \| good	2.934 \| good	0.186 \| good
2025-07-15T23:00:00.000Z	54 \| moderate	11.057 \| good	49.057 \| good	50.37 \| good	1.459 \| good	3.924 \| good	0.189 \| good
2025-07-16T00:00:00.000Z	49 \| good	9.15 \| good	41.114 \| good	44.649 \| good	1.467 \| good	4.913 \| good	0.192 \| good
2025-07-16T01:00:00.000Z	58 \| moderate	12.952 \| fine	57.894 \| fine	37.206 \| good	1.394 \| good	6.543 \| good	0.197 \| good
2025-07-16T02:00:00.000Z	44 \| good	7.55 \| good	33.394 \| good	36.221 \| good	1.322 \| good	8.173 \| good	0.203 \| good
2025-07-16T03:00:00.000Z	31 \| good	4.737 \| good	20.588 \| good	33.684 \| good	1.25 \| good	9.803 \| good	0.208 \| good
2025-07-16T04:00:00.000Z	28 \| good	4.725 \| good	20.606 \| good	29.852 \| good	1.172 \| good	9.363 \| good	0.205 \| good
2025-07-16T05:00:00.000Z	38 \| good	7.3 \| good	31.789 \| good	27.571 \| good	1.094 \| good	8.924 \| good	0.201 \| good
2025-07-16T06:00:00.000Z	49 \| good	9.06 \| good	40.359 \| good	20.854 \| good	1.015 \| good	8.484 \| good	0.198 \| good
2025-07-16T07:00:00.000Z	52 \| moderate	9.981 \| good	44.332 \| good	16.815 \| good	0.902 \| good	7.712 \| good	0.193 \| good
2025-07-16T08:00:00.000Z	44 \| good	8.169 \| good	35.851 \| good	18.295 \| good	0.788 \| good	6.939 \| good	0.187 \| good
2025-07-16T09:00:00.000Z	38 \| good	6.705 \| good	29.764 \| good	21.04 \| good	0.675 \| good	6.167 \| good	0.182 \| good
2025-07-16T10:00:00.000Z	33 \| good	5.914 \| good	26.538 \| good	17.353 \| good	0.628 \| good	5.73 \| good	0.182 \| good
2025-07-16T11:00:00.000Z	33 \| good	5.931 \| good	26.315 \| good	18.347 \| good	0.581 \| good	5.293 \| good	0.182 \| good
2025-07-16T12:00:00.000Z	33 \| good	6.343 \| good	28.045 \| good	21.96 \| good	0.535 \| good	4.857 \| good	0.182 \| good
2025-07-16T13:00:00.000Z	49 \| good	9.016 \| good	40.097 \| good	29.02 \| good	0.635 \| good	4.474 \| good	0.19 \| good
2025-07-16T14:00:00.000Z	54 \| moderate	10.55 \| good	46.571 \| good	38.55 \| good	0.736 \| good	4.09 \| good	0.198 \| good
2025-07-16T15:00:00.000Z	54 \| moderate	11.004 \| good	48.552 \| good	48.111 \| good	0.837 \| good	3.707 \| good	0.206 \| good
2025-07-16T16:00:00.000Z	52 \| moderate	10.47 \| good	46.608 \| good	54.002 \| good	0.948 \| good	3.006 \| good	0.205 \| good

Real-time air quality index in Romeoville, Illinois today

Major air pollutants in Romeoville, Illinois

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Romeoville, Illinois air quality forecast and history

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

Air quality in nearby cities

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How accurate is Illinois, USA air quality data?

Air quality levels in US

Frequently asked questions

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What is the AQI in Romeoville, Illinois right now?

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

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

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

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

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

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

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

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

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

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