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

Currently, Romeoville, Illinois has a sulfur dioxide (SO2) concentration of 0.572 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 55.56 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 1.761 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)

102

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)

35.50 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

116.17 μg/m³

155

255

425

605+

Ozone (O₃)

55.56 ppb

201

201+

Sulfur Dioxide (SO₂)

0.57 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

1.76 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.24 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
2025-06-04T21:00:00.000Z	66 \| moderate	17.042 \| fine	82.981 \| fine	43.47 \| good	0.433 \| good	4.579 \| good	0.322 \| good
2025-06-04T22:00:00.000Z	65 \| moderate	16.318 \| fine	82.637 \| fine	41.641 \| good	0.41 \| good	2.257 \| good	0.322 \| good
2025-06-04T23:00:00.000Z	62 \| moderate	15.384 \| fine	72.57 \| fine	43.982 \| good	0.379 \| good	3.672 \| good	0.303 \| good
2025-06-05T00:00:00.000Z	69 \| moderate	19.061 \| fine	87.181 \| fine	42.177 \| good	0.337 \| good	4.091 \| good	0.351 \| good
2025-06-05T01:00:00.000Z	66 \| moderate	16.548 \| fine	73.779 \| fine	38.82 \| good	0.321 \| good	3.837 \| good	0.4 \| good
2025-06-05T02:00:00.000Z	64 \| moderate	15.843 \| fine	66.701 \| fine	34.901 \| good	0.404 \| good	11.271 \| good	0.5 \| good
2025-06-05T03:00:00.000Z	64 \| moderate	16.183 \| fine	73.894 \| fine	29.555 \| good	0.408 \| good	15.352 \| good	0.492 \| good
2025-06-05T04:00:00.000Z	71 \| moderate	20.248 \| fine	89.107 \| fine	29.673 \| good	0.386 \| good	21.133 \| good	0.513 \| good
2025-06-05T05:00:00.000Z	79 \| moderate	23.538 \| fine	92.937 \| fine	24.934 \| good	0.368 \| good	21.344 \| good	0.474 \| good
2025-06-05T06:00:00.000Z	101 \| sensitive	31.138 \| fine	154.872 \| fine	22.658 \| good	0.322 \| good	19.076 \| good	0.474 \| good
2025-06-05T07:00:00.000Z	94 \| moderate	31.716 \| fine	107.993 \| fine	21.144 \| good	0.44 \| good	16.762 \| good	0.445 \| good
2025-06-05T08:00:00.000Z	92 \| moderate	30.893 \| fine	113.9 \| fine	19.843 \| good	0.473 \| good	15.052 \| good	0.439 \| good
2025-06-05T09:00:00.000Z	110 \| sensitive	38.977 \| moderate	158.964 \| moderate	16.191 \| good	0.481 \| good	14.259 \| good	0.468 \| good
2025-06-05T10:00:00.000Z	110 \| sensitive	38.888 \| moderate	158.746 \| moderate	15.94 \| good	0.426 \| good	14.068 \| good	0.465 \| good
2025-06-05T11:00:00.000Z	129 \| sensitive	47.143 \| moderate	209.139 \| moderate	18.182 \| good	0.431 \| good	15.914 \| good	0.497 \| good
2025-06-05T12:00:00.000Z	124 \| sensitive	45.215 \| moderate	198.773 \| moderate	16.088 \| good	0.402 \| good	16.743 \| good	0.478 \| good
2025-06-05T13:00:00.000Z	129 \| sensitive	46.988 \| moderate	210.231 \| moderate	17.885 \| good	0.417 \| good	8.794 \| good	0.42 \| good
2025-06-05T14:00:00.000Z	119 \| sensitive	43.225 \| moderate	184.251 \| moderate	22.919 \| good	0.402 \| good	6.155 \| good	0.397 \| good
2025-06-05T15:00:00.000Z	125 \| sensitive	44.274 \| moderate	203.932 \| moderate	27.128 \| good	0.382 \| good	4.399 \| good	0.394 \| good
2025-06-05T16:00:00.000Z	137 \| sensitive	49.57 \| moderate	216.144 \| moderate	33.714 \| good	0.791 \| good	4.071 \| good	0.374 \| good
2025-06-05T17:00:00.000Z	149 \| sensitive	55.31 \| moderate	243.71 \| moderate	43.8 \| good	2.643 \| good	4.431 \| good	0.362 \| good
2025-06-05T18:00:00.000Z	159 \| unhealthy	66.547 \| poor	242.314 \| moderate	44.951 \| good	1.256 \| good	3.282 \| good	0.348 \| good
2025-06-05T19:00:00.000Z	156 \| unhealthy	63.355 \| poor	180.281 \| moderate	49.075 \| good	1.411 \| good	1.308 \| good	0.297 \| good
2025-06-05T20:00:00.000Z	154 \| unhealthy	59.555 \| poor	238.21 \| moderate	51.997 \| good	0.948 \| good	3.029 \| good	0.274 \| good
2025-06-05T21:00:00.000Z	139 \| sensitive	50.715 \| moderate	169.111 \| moderate	51.966 \| good	0.942 \| good	3.44 \| good	0.256 \| good
2025-06-05T22:00:00.000Z	122 \| sensitive	44.29 \| moderate	165.144 \| moderate	53.376 \| good	0.474 \| good	4.586 \| good	0.256 \| good
2025-06-05T23:00:00.000Z	144 \| sensitive	52.832 \| moderate	216.614 \| moderate	54.132 \| good	0.416 \| good	6.146 \| good	0.233 \| good
2025-06-06T00:00:00.000Z	129 \| sensitive	47.334 \| moderate	197.728 \| moderate	53.741 \| good	0.789 \| good	5.534 \| good	0.248 \| good
2025-06-06T01:00:00.000Z	132 \| sensitive	47.745 \| moderate	184.754 \| moderate	52.863 \| good	1.158 \| good	7.402 \| good	0.248 \| good
2025-06-06T02:00:00.000Z	129 \| sensitive	47.013 \| moderate	192.758 \| moderate	50.52 \| good	2.12 \| good	10.852 \| good	0.263 \| good
2025-06-06T03:00:00.000Z	144 \| sensitive	52.56 \| moderate	194.821 \| moderate	46.016 \| good	2.081 \| good	12.95 \| good	0.286 \| good
2025-06-06T04:00:00.000Z	137 \| sensitive	49.623 \| moderate	212.523 \| moderate	45.716 \| good	2.256 \| good	3.223 \| good	0.272 \| good
2025-06-06T05:00:00.000Z	119 \| sensitive	43.403 \| moderate	165.327 \| moderate	40.045 \| good	1.07 \| good	5.123 \| good	0.313 \| good
2025-06-06T06:00:00.000Z	119 \| sensitive	42.94 \| moderate	177.009 \| moderate	35.929 \| good	0.868 \| good	8.601 \| good	0.317 \| good
2025-06-06T07:00:00.000Z	119 \| sensitive	43.214 \| moderate	184.565 \| moderate	34.441 \| good	0.411 \| good	10.039 \| good	0.309 \| good
2025-06-06T08:00:00.000Z	112 \| sensitive	39.514 \| moderate	156.91 \| moderate	37.728 \| good	0.346 \| good	8.869 \| good	0.324 \| good
2025-06-06T09:00:00.000Z	112 \| sensitive	39.843 \| moderate	174.362 \| moderate	32.258 \| good	0.376 \| good	11.402 \| good	0.324 \| good
2025-06-06T10:00:00.000Z	105 \| sensitive	37.242 \| moderate	149.845 \| fine	35.411 \| good	1.322 \| good	12.29 \| good	0.324 \| good
2025-06-06T11:00:00.000Z	102 \| sensitive	36.276 \| moderate	152.569 \| fine	34.695 \| good	0.427 \| good	13.35 \| good	0.342 \| good
2025-06-06T12:00:00.000Z	102 \| sensitive	36.413 \| moderate	148.44 \| fine	29.693 \| good	0.401 \| good	8.966 \| good	0.35 \| good
2025-06-06T13:00:00.000Z	99 \| moderate	35.46 \| fine	133.046 \| fine	31.398 \| good	0.404 \| good	6.557 \| good	0.322 \| good
2025-06-06T14:00:00.000Z	102 \| sensitive	36.285 \| moderate	158.321 \| moderate	27.336 \| good	0.391 \| good	14.428 \| good	0.489 \| good
2025-06-06T15:00:00.000Z	107 \| sensitive	37.518 \| moderate	158.319 \| moderate	32.12 \| good	0.476 \| good	9.459 \| good	0.361 \| good
2025-06-06T16:00:00.000Z	102 \| sensitive	35.784 \| moderate	135.256 \| fine	35.097 \| good	0.884 \| good	2.9 \| good	0.27 \| good
2025-06-06T17:00:00.000Z	107 \| sensitive	37.922 \| moderate	161.687 \| moderate	40.526 \| good	0.756 \| good	2.879 \| good	0.255 \| good
2025-06-06T18:00:00.000Z	112 \| sensitive	39.676 \| moderate	159.888 \| moderate	45.107 \| good	0.506 \| good	2.063 \| good	0.255 \| good
2025-06-06T19:00:00.000Z	112 \| sensitive	39.857 \| moderate	175.295 \| moderate	53.518 \| good	1.117 \| good	2.52 \| good	0.236 \| good
2025-06-06T20:00:00.000Z	102 \| sensitive	35.504 \| moderate	116.174 \| fine	55.56 \| fine	0.572 \| good	1.761 \| good	0.236 \| good
2025-06-06T20:00:00.000Z	102 \| sensitive	35.504 \| moderate	116.174 \| fine	55.56 \| fine	0.572 \| good	1.761 \| good	0.236 \| good
2025-06-06T21:00:00.000Z	71 \| moderate	13.979 \| fine	62.672 \| fine	60.853 \| fine	1.715 \| good	2.537 \| good	0.201 \| good
2025-06-06T22:00:00.000Z	58 \| moderate	13.045 \| fine	58.512 \| fine	51.663 \| good	1.991 \| good	5.595 \| good	0.196 \| good
2025-06-06T23:00:00.000Z	56 \| moderate	11.641 \| good	51.589 \| good	45.693 \| good	2.045 \| good	6.395 \| good	0.2 \| good
2025-06-07T00:00:00.000Z	38 \| good	6.508 \| good	28.839 \| good	40.413 \| good	2.098 \| good	7.194 \| good	0.204 \| good
2025-06-07T01:00:00.000Z	52 \| moderate	9.631 \| good	42.667 \| good	37.449 \| good	2.324 \| good	13.216 \| good	0.232 \| good
2025-06-07T02:00:00.000Z	54 \| moderate	10.781 \| good	47.52 \| good	30.995 \| good	2.305 \| good	13.904 \| good	0.237 \| good
2025-06-07T03:00:00.000Z	54 \| moderate	11.018 \| good	48.388 \| good	26.718 \| good	2.287 \| good	14.591 \| good	0.242 \| good
2025-06-07T04:00:00.000Z	52 \| moderate	10.375 \| good	46.12 \| good	23.588 \| good	2.07 \| good	14.464 \| good	0.245 \| good
2025-06-07T05:00:00.000Z	54 \| moderate	11.353 \| good	50.437 \| good	18.361 \| good	1.999 \| good	14.308 \| good	0.243 \| good
2025-06-07T06:00:00.000Z	54 \| moderate	11.138 \| good	49.267 \| good	14.004 \| good	1.928 \| good	14.151 \| good	0.242 \| good
2025-06-07T07:00:00.000Z	56 \| moderate	12.271 \| fine	55.696 \| fine	14.522 \| good	1.728 \| good	11.955 \| good	0.224 \| good
2025-06-07T08:00:00.000Z	60 \| moderate	13.606 \| fine	60.995 \| fine	14.966 \| good	1.69 \| good	11.442 \| good	0.219 \| good
2025-06-07T09:00:00.000Z	64 \| moderate	15.798 \| fine	70.063 \| fine	18.181 \| good	1.652 \| good	10.928 \| good	0.214 \| good
2025-06-07T10:00:00.000Z	73 \| moderate	20.96 \| fine	92.088 \| fine	20.31 \| good	1.678 \| good	11.075 \| good	0.228 \| good
2025-06-07T11:00:00.000Z	71 \| moderate	20.148 \| fine	88.761 \| fine	20.402 \| good	1.745 \| good	11.239 \| good	0.227 \| good
2025-06-07T12:00:00.000Z	69 \| moderate	18.937 \| fine	83.91 \| fine	23.336 \| good	1.812 \| good	11.404 \| good	0.226 \| good
2025-06-07T13:00:00.000Z	66 \| moderate	17.073 \| fine	75.738 \| fine	27.362 \| good	3.059 \| good	7.42 \| good	0.225 \| good
2025-06-07T14:00:00.000Z	64 \| moderate	16.252 \| fine	72.591 \| fine	30.086 \| good	3.083 \| good	7.835 \| good	0.233 \| good
2025-06-07T15:00:00.000Z	66 \| moderate	17.135 \| fine	75.987 \| fine	34.07 \| good	3.106 \| good	8.25 \| good	0.24 \| good
2025-06-07T16:00:00.000Z	66 \| moderate	16.515 \| fine	73.113 \| fine	36.084 \| good	1.948 \| good	2.543 \| good	0.201 \| good
2025-06-07T17:00:00.000Z	60 \| moderate	13.94 \| fine	62.278 \| fine	42.61 \| good	1.858 \| good	2.646 \| good	0.205 \| good
2025-06-07T18:00:00.000Z	54 \| moderate	11.128 \| good	49.244 \| good	45.898 \| good	1.767 \| good	2.748 \| good	0.209 \| good
2025-06-07T19:00:00.000Z	52 \| moderate	9.729 \| good	43.703 \| good	46.65 \| good	1.638 \| good	2.919 \| good	0.206 \| good
2025-06-07T20:00:00.000Z	52 \| moderate	9.761 \| good	43.533 \| good	42.861 \| good	1.575 \| good	3.211 \| good	0.209 \| good
2025-06-07T21:00:00.000Z	54 \| moderate	10.512 \| good	46.714 \| good	40.062 \| good	1.511 \| good	3.502 \| good	0.211 \| good
2025-06-07T22:00:00.000Z	52 \| moderate	10.099 \| good	44.786 \| good	40.2 \| good	1.979 \| good	8.068 \| good	0.24 \| good
2025-06-07T23:00:00.000Z	54 \| moderate	11.068 \| good	49.302 \| good	40.75 \| good	1.925 \| good	9.12 \| good	0.246 \| good
2025-06-08T00:00:00.000Z	60 \| moderate	13.807 \| fine	61.997 \| fine	37.308 \| good	1.871 \| good	10.173 \| good	0.253 \| good
2025-06-08T01:00:00.000Z	66 \| moderate	17.094 \| fine	75.662 \| fine	35.189 \| good	2.005 \| good	15.528 \| good	0.28 \| good
2025-06-08T02:00:00.000Z	64 \| moderate	16.482 \| fine	73.15 \| fine	30.63 \| good	1.917 \| good	16.004 \| good	0.282 \| good
2025-06-08T03:00:00.000Z	62 \| moderate	15.057 \| fine	67.23 \| fine	33.857 \| good	1.829 \| good	16.48 \| good	0.284 \| good
2025-06-08T04:00:00.000Z	49 \| good	9.119 \| good	40.262 \| good	39.054 \| good	1.753 \| good	16.877 \| good	0.29 \| good
2025-06-08T05:00:00.000Z	34 \| good	6.384 \| good	28.145 \| good	36.701 \| good	1.65 \| good	16.59 \| good	0.288 \| good
2025-06-08T06:00:00.000Z	29 \| good	3.729 \| good	16.18 \| good	31.2 \| good	1.547 \| good	16.303 \| good	0.287 \| good
2025-06-08T07:00:00.000Z	26 \| good	3.313 \| good	13.86 \| good	27.664 \| good	1.676 \| good	20.121 \| good	0.294 \| good
2025-06-08T08:00:00.000Z	23 \| good	3.467 \| good	15.028 \| good	25.149 \| good	1.603 \| good	19.21 \| good	0.29 \| good
2025-06-08T09:00:00.000Z	23 \| good	3.524 \| good	15.257 \| good	25.019 \| good	1.529 \| good	18.3 \| good	0.285 \| good
2025-06-08T10:00:00.000Z	23 \| good	4.215 \| good	18.191 \| good	24.662 \| good	1.583 \| good	18.92 \| good	0.33 \| good
2025-06-08T11:00:00.000Z	22 \| good	3.677 \| good	15.851 \| good	23.508 \| good	1.591 \| good	18.857 \| good	0.329 \| good
2025-06-08T12:00:00.000Z	25 \| good	3.623 \| good	15.826 \| good	26.644 \| good	1.598 \| good	18.795 \| good	0.328 \| good
2025-06-08T13:00:00.000Z	33 \| good	5.57 \| good	23.811 \| good	31.617 \| good	3.475 \| good	4.711 \| good	0.254 \| good
2025-06-08T14:00:00.000Z	49 \| good	8.824 \| good	38.995 \| good	38.318 \| good	3.75 \| good	5.343 \| good	0.26 \| good
2025-06-08T15:00:00.000Z	52 \| moderate	10.224 \| good	45.348 \| good	46.386 \| good	4.025 \| good	5.974 \| good	0.265 \| good
2025-06-08T16:00:00.000Z	49 \| good	8.784 \| good	38.728 \| good	52.84 \| good	1.522 \| good	1.196 \| good	0.202 \| good
2025-06-08T17:00:00.000Z	61 \| moderate	8.539 \| good	37.543 \| good	57.594 \| fine	1.727 \| good	1.377 \| good	0.206 \| good
2025-06-08T18:00:00.000Z	54 \| moderate	8.706 \| good	38.406 \| good	55.511 \| fine	1.932 \| good	1.558 \| good	0.211 \| good
2025-06-08T19:00:00.000Z	52 \| moderate	9.524 \| good	42.356 \| good	46.287 \| good	0.681 \| good	1.259 \| good	0.175 \| good
2025-06-08T20:00:00.000Z	52 \| moderate	9.682 \| good	43.049 \| good	34.218 \| good	0.787 \| good	1.411 \| good	0.177 \| 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 08:00:00 on 2025-06-05.

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 01:00:00 on 2025-06-06.

What is the AQI in Romeoville, Illinois right now?

As of now, the AQI in Romeoville, Illinois is 102, 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 PM2.5.

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 35.504 μg/m³.

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

The PM₁₀ concentration in Romeoville, Illinois is 116.174 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 0.236 ppm.

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

Currently, Romeoville, Illinois has a sulfur dioxide (SO₂) concentration of 0.572 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 55.56 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 1.761 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-04T21:00:00.000Z	66 \| moderate	17.042 \| fine	82.981 \| fine	43.47 \| good	0.433 \| good	4.579 \| good	0.322 \| good
2025-06-04T22:00:00.000Z	65 \| moderate	16.318 \| fine	82.637 \| fine	41.641 \| good	0.41 \| good	2.257 \| good	0.322 \| good
2025-06-04T23:00:00.000Z	62 \| moderate	15.384 \| fine	72.57 \| fine	43.982 \| good	0.379 \| good	3.672 \| good	0.303 \| good
2025-06-05T00:00:00.000Z	69 \| moderate	19.061 \| fine	87.181 \| fine	42.177 \| good	0.337 \| good	4.091 \| good	0.351 \| good
2025-06-05T01:00:00.000Z	66 \| moderate	16.548 \| fine	73.779 \| fine	38.82 \| good	0.321 \| good	3.837 \| good	0.4 \| good
2025-06-05T02:00:00.000Z	64 \| moderate	15.843 \| fine	66.701 \| fine	34.901 \| good	0.404 \| good	11.271 \| good	0.5 \| good
2025-06-05T03:00:00.000Z	64 \| moderate	16.183 \| fine	73.894 \| fine	29.555 \| good	0.408 \| good	15.352 \| good	0.492 \| good
2025-06-05T04:00:00.000Z	71 \| moderate	20.248 \| fine	89.107 \| fine	29.673 \| good	0.386 \| good	21.133 \| good	0.513 \| good
2025-06-05T05:00:00.000Z	79 \| moderate	23.538 \| fine	92.937 \| fine	24.934 \| good	0.368 \| good	21.344 \| good	0.474 \| good
2025-06-05T06:00:00.000Z	101 \| sensitive	31.138 \| fine	154.872 \| fine	22.658 \| good	0.322 \| good	19.076 \| good	0.474 \| good
2025-06-05T07:00:00.000Z	94 \| moderate	31.716 \| fine	107.993 \| fine	21.144 \| good	0.44 \| good	16.762 \| good	0.445 \| good
2025-06-05T08:00:00.000Z	92 \| moderate	30.893 \| fine	113.9 \| fine	19.843 \| good	0.473 \| good	15.052 \| good	0.439 \| good
2025-06-05T09:00:00.000Z	110 \| sensitive	38.977 \| moderate	158.964 \| moderate	16.191 \| good	0.481 \| good	14.259 \| good	0.468 \| good
2025-06-05T10:00:00.000Z	110 \| sensitive	38.888 \| moderate	158.746 \| moderate	15.94 \| good	0.426 \| good	14.068 \| good	0.465 \| good
2025-06-05T11:00:00.000Z	129 \| sensitive	47.143 \| moderate	209.139 \| moderate	18.182 \| good	0.431 \| good	15.914 \| good	0.497 \| good
2025-06-05T12:00:00.000Z	124 \| sensitive	45.215 \| moderate	198.773 \| moderate	16.088 \| good	0.402 \| good	16.743 \| good	0.478 \| good
2025-06-05T13:00:00.000Z	129 \| sensitive	46.988 \| moderate	210.231 \| moderate	17.885 \| good	0.417 \| good	8.794 \| good	0.42 \| good
2025-06-05T14:00:00.000Z	119 \| sensitive	43.225 \| moderate	184.251 \| moderate	22.919 \| good	0.402 \| good	6.155 \| good	0.397 \| good
2025-06-05T15:00:00.000Z	125 \| sensitive	44.274 \| moderate	203.932 \| moderate	27.128 \| good	0.382 \| good	4.399 \| good	0.394 \| good
2025-06-05T16:00:00.000Z	137 \| sensitive	49.57 \| moderate	216.144 \| moderate	33.714 \| good	0.791 \| good	4.071 \| good	0.374 \| good
2025-06-05T17:00:00.000Z	149 \| sensitive	55.31 \| moderate	243.71 \| moderate	43.8 \| good	2.643 \| good	4.431 \| good	0.362 \| good
2025-06-05T18:00:00.000Z	159 \| unhealthy	66.547 \| poor	242.314 \| moderate	44.951 \| good	1.256 \| good	3.282 \| good	0.348 \| good
2025-06-05T19:00:00.000Z	156 \| unhealthy	63.355 \| poor	180.281 \| moderate	49.075 \| good	1.411 \| good	1.308 \| good	0.297 \| good
2025-06-05T20:00:00.000Z	154 \| unhealthy	59.555 \| poor	238.21 \| moderate	51.997 \| good	0.948 \| good	3.029 \| good	0.274 \| good
2025-06-05T21:00:00.000Z	139 \| sensitive	50.715 \| moderate	169.111 \| moderate	51.966 \| good	0.942 \| good	3.44 \| good	0.256 \| good
2025-06-05T22:00:00.000Z	122 \| sensitive	44.29 \| moderate	165.144 \| moderate	53.376 \| good	0.474 \| good	4.586 \| good	0.256 \| good
2025-06-05T23:00:00.000Z	144 \| sensitive	52.832 \| moderate	216.614 \| moderate	54.132 \| good	0.416 \| good	6.146 \| good	0.233 \| good
2025-06-06T00:00:00.000Z	129 \| sensitive	47.334 \| moderate	197.728 \| moderate	53.741 \| good	0.789 \| good	5.534 \| good	0.248 \| good
2025-06-06T01:00:00.000Z	132 \| sensitive	47.745 \| moderate	184.754 \| moderate	52.863 \| good	1.158 \| good	7.402 \| good	0.248 \| good
2025-06-06T02:00:00.000Z	129 \| sensitive	47.013 \| moderate	192.758 \| moderate	50.52 \| good	2.12 \| good	10.852 \| good	0.263 \| good
2025-06-06T03:00:00.000Z	144 \| sensitive	52.56 \| moderate	194.821 \| moderate	46.016 \| good	2.081 \| good	12.95 \| good	0.286 \| good
2025-06-06T04:00:00.000Z	137 \| sensitive	49.623 \| moderate	212.523 \| moderate	45.716 \| good	2.256 \| good	3.223 \| good	0.272 \| good
2025-06-06T05:00:00.000Z	119 \| sensitive	43.403 \| moderate	165.327 \| moderate	40.045 \| good	1.07 \| good	5.123 \| good	0.313 \| good
2025-06-06T06:00:00.000Z	119 \| sensitive	42.94 \| moderate	177.009 \| moderate	35.929 \| good	0.868 \| good	8.601 \| good	0.317 \| good
2025-06-06T07:00:00.000Z	119 \| sensitive	43.214 \| moderate	184.565 \| moderate	34.441 \| good	0.411 \| good	10.039 \| good	0.309 \| good
2025-06-06T08:00:00.000Z	112 \| sensitive	39.514 \| moderate	156.91 \| moderate	37.728 \| good	0.346 \| good	8.869 \| good	0.324 \| good
2025-06-06T09:00:00.000Z	112 \| sensitive	39.843 \| moderate	174.362 \| moderate	32.258 \| good	0.376 \| good	11.402 \| good	0.324 \| good
2025-06-06T10:00:00.000Z	105 \| sensitive	37.242 \| moderate	149.845 \| fine	35.411 \| good	1.322 \| good	12.29 \| good	0.324 \| good
2025-06-06T11:00:00.000Z	102 \| sensitive	36.276 \| moderate	152.569 \| fine	34.695 \| good	0.427 \| good	13.35 \| good	0.342 \| good
2025-06-06T12:00:00.000Z	102 \| sensitive	36.413 \| moderate	148.44 \| fine	29.693 \| good	0.401 \| good	8.966 \| good	0.35 \| good
2025-06-06T13:00:00.000Z	99 \| moderate	35.46 \| fine	133.046 \| fine	31.398 \| good	0.404 \| good	6.557 \| good	0.322 \| good
2025-06-06T14:00:00.000Z	102 \| sensitive	36.285 \| moderate	158.321 \| moderate	27.336 \| good	0.391 \| good	14.428 \| good	0.489 \| good
2025-06-06T15:00:00.000Z	107 \| sensitive	37.518 \| moderate	158.319 \| moderate	32.12 \| good	0.476 \| good	9.459 \| good	0.361 \| good
2025-06-06T16:00:00.000Z	102 \| sensitive	35.784 \| moderate	135.256 \| fine	35.097 \| good	0.884 \| good	2.9 \| good	0.27 \| good
2025-06-06T17:00:00.000Z	107 \| sensitive	37.922 \| moderate	161.687 \| moderate	40.526 \| good	0.756 \| good	2.879 \| good	0.255 \| good
2025-06-06T18:00:00.000Z	112 \| sensitive	39.676 \| moderate	159.888 \| moderate	45.107 \| good	0.506 \| good	2.063 \| good	0.255 \| good
2025-06-06T19:00:00.000Z	112 \| sensitive	39.857 \| moderate	175.295 \| moderate	53.518 \| good	1.117 \| good	2.52 \| good	0.236 \| good
2025-06-06T20:00:00.000Z	102 \| sensitive	35.504 \| moderate	116.174 \| fine	55.56 \| fine	0.572 \| good	1.761 \| good	0.236 \| good
2025-06-06T20:00:00.000Z	102 \| sensitive	35.504 \| moderate	116.174 \| fine	55.56 \| fine	0.572 \| good	1.761 \| good	0.236 \| good
2025-06-06T21:00:00.000Z	71 \| moderate	13.979 \| fine	62.672 \| fine	60.853 \| fine	1.715 \| good	2.537 \| good	0.201 \| good
2025-06-06T22:00:00.000Z	58 \| moderate	13.045 \| fine	58.512 \| fine	51.663 \| good	1.991 \| good	5.595 \| good	0.196 \| good
2025-06-06T23:00:00.000Z	56 \| moderate	11.641 \| good	51.589 \| good	45.693 \| good	2.045 \| good	6.395 \| good	0.2 \| good
2025-06-07T00:00:00.000Z	38 \| good	6.508 \| good	28.839 \| good	40.413 \| good	2.098 \| good	7.194 \| good	0.204 \| good
2025-06-07T01:00:00.000Z	52 \| moderate	9.631 \| good	42.667 \| good	37.449 \| good	2.324 \| good	13.216 \| good	0.232 \| good
2025-06-07T02:00:00.000Z	54 \| moderate	10.781 \| good	47.52 \| good	30.995 \| good	2.305 \| good	13.904 \| good	0.237 \| good
2025-06-07T03:00:00.000Z	54 \| moderate	11.018 \| good	48.388 \| good	26.718 \| good	2.287 \| good	14.591 \| good	0.242 \| good
2025-06-07T04:00:00.000Z	52 \| moderate	10.375 \| good	46.12 \| good	23.588 \| good	2.07 \| good	14.464 \| good	0.245 \| good
2025-06-07T05:00:00.000Z	54 \| moderate	11.353 \| good	50.437 \| good	18.361 \| good	1.999 \| good	14.308 \| good	0.243 \| good
2025-06-07T06:00:00.000Z	54 \| moderate	11.138 \| good	49.267 \| good	14.004 \| good	1.928 \| good	14.151 \| good	0.242 \| good
2025-06-07T07:00:00.000Z	56 \| moderate	12.271 \| fine	55.696 \| fine	14.522 \| good	1.728 \| good	11.955 \| good	0.224 \| good
2025-06-07T08:00:00.000Z	60 \| moderate	13.606 \| fine	60.995 \| fine	14.966 \| good	1.69 \| good	11.442 \| good	0.219 \| good
2025-06-07T09:00:00.000Z	64 \| moderate	15.798 \| fine	70.063 \| fine	18.181 \| good	1.652 \| good	10.928 \| good	0.214 \| good
2025-06-07T10:00:00.000Z	73 \| moderate	20.96 \| fine	92.088 \| fine	20.31 \| good	1.678 \| good	11.075 \| good	0.228 \| good
2025-06-07T11:00:00.000Z	71 \| moderate	20.148 \| fine	88.761 \| fine	20.402 \| good	1.745 \| good	11.239 \| good	0.227 \| good
2025-06-07T12:00:00.000Z	69 \| moderate	18.937 \| fine	83.91 \| fine	23.336 \| good	1.812 \| good	11.404 \| good	0.226 \| good
2025-06-07T13:00:00.000Z	66 \| moderate	17.073 \| fine	75.738 \| fine	27.362 \| good	3.059 \| good	7.42 \| good	0.225 \| good
2025-06-07T14:00:00.000Z	64 \| moderate	16.252 \| fine	72.591 \| fine	30.086 \| good	3.083 \| good	7.835 \| good	0.233 \| good
2025-06-07T15:00:00.000Z	66 \| moderate	17.135 \| fine	75.987 \| fine	34.07 \| good	3.106 \| good	8.25 \| good	0.24 \| good
2025-06-07T16:00:00.000Z	66 \| moderate	16.515 \| fine	73.113 \| fine	36.084 \| good	1.948 \| good	2.543 \| good	0.201 \| good
2025-06-07T17:00:00.000Z	60 \| moderate	13.94 \| fine	62.278 \| fine	42.61 \| good	1.858 \| good	2.646 \| good	0.205 \| good
2025-06-07T18:00:00.000Z	54 \| moderate	11.128 \| good	49.244 \| good	45.898 \| good	1.767 \| good	2.748 \| good	0.209 \| good
2025-06-07T19:00:00.000Z	52 \| moderate	9.729 \| good	43.703 \| good	46.65 \| good	1.638 \| good	2.919 \| good	0.206 \| good
2025-06-07T20:00:00.000Z	52 \| moderate	9.761 \| good	43.533 \| good	42.861 \| good	1.575 \| good	3.211 \| good	0.209 \| good
2025-06-07T21:00:00.000Z	54 \| moderate	10.512 \| good	46.714 \| good	40.062 \| good	1.511 \| good	3.502 \| good	0.211 \| good
2025-06-07T22:00:00.000Z	52 \| moderate	10.099 \| good	44.786 \| good	40.2 \| good	1.979 \| good	8.068 \| good	0.24 \| good
2025-06-07T23:00:00.000Z	54 \| moderate	11.068 \| good	49.302 \| good	40.75 \| good	1.925 \| good	9.12 \| good	0.246 \| good
2025-06-08T00:00:00.000Z	60 \| moderate	13.807 \| fine	61.997 \| fine	37.308 \| good	1.871 \| good	10.173 \| good	0.253 \| good
2025-06-08T01:00:00.000Z	66 \| moderate	17.094 \| fine	75.662 \| fine	35.189 \| good	2.005 \| good	15.528 \| good	0.28 \| good
2025-06-08T02:00:00.000Z	64 \| moderate	16.482 \| fine	73.15 \| fine	30.63 \| good	1.917 \| good	16.004 \| good	0.282 \| good
2025-06-08T03:00:00.000Z	62 \| moderate	15.057 \| fine	67.23 \| fine	33.857 \| good	1.829 \| good	16.48 \| good	0.284 \| good
2025-06-08T04:00:00.000Z	49 \| good	9.119 \| good	40.262 \| good	39.054 \| good	1.753 \| good	16.877 \| good	0.29 \| good
2025-06-08T05:00:00.000Z	34 \| good	6.384 \| good	28.145 \| good	36.701 \| good	1.65 \| good	16.59 \| good	0.288 \| good
2025-06-08T06:00:00.000Z	29 \| good	3.729 \| good	16.18 \| good	31.2 \| good	1.547 \| good	16.303 \| good	0.287 \| good
2025-06-08T07:00:00.000Z	26 \| good	3.313 \| good	13.86 \| good	27.664 \| good	1.676 \| good	20.121 \| good	0.294 \| good
2025-06-08T08:00:00.000Z	23 \| good	3.467 \| good	15.028 \| good	25.149 \| good	1.603 \| good	19.21 \| good	0.29 \| good
2025-06-08T09:00:00.000Z	23 \| good	3.524 \| good	15.257 \| good	25.019 \| good	1.529 \| good	18.3 \| good	0.285 \| good
2025-06-08T10:00:00.000Z	23 \| good	4.215 \| good	18.191 \| good	24.662 \| good	1.583 \| good	18.92 \| good	0.33 \| good
2025-06-08T11:00:00.000Z	22 \| good	3.677 \| good	15.851 \| good	23.508 \| good	1.591 \| good	18.857 \| good	0.329 \| good
2025-06-08T12:00:00.000Z	25 \| good	3.623 \| good	15.826 \| good	26.644 \| good	1.598 \| good	18.795 \| good	0.328 \| good
2025-06-08T13:00:00.000Z	33 \| good	5.57 \| good	23.811 \| good	31.617 \| good	3.475 \| good	4.711 \| good	0.254 \| good
2025-06-08T14:00:00.000Z	49 \| good	8.824 \| good	38.995 \| good	38.318 \| good	3.75 \| good	5.343 \| good	0.26 \| good
2025-06-08T15:00:00.000Z	52 \| moderate	10.224 \| good	45.348 \| good	46.386 \| good	4.025 \| good	5.974 \| good	0.265 \| good
2025-06-08T16:00:00.000Z	49 \| good	8.784 \| good	38.728 \| good	52.84 \| good	1.522 \| good	1.196 \| good	0.202 \| good
2025-06-08T17:00:00.000Z	61 \| moderate	8.539 \| good	37.543 \| good	57.594 \| fine	1.727 \| good	1.377 \| good	0.206 \| good
2025-06-08T18:00:00.000Z	54 \| moderate	8.706 \| good	38.406 \| good	55.511 \| fine	1.932 \| good	1.558 \| good	0.211 \| good
2025-06-08T19:00:00.000Z	52 \| moderate	9.524 \| good	42.356 \| good	46.287 \| good	0.681 \| good	1.259 \| good	0.175 \| good
2025-06-08T20:00:00.000Z	52 \| moderate	9.682 \| good	43.049 \| good	34.218 \| good	0.787 \| good	1.411 \| good	0.177 \| 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

Get reliable air quality data to drive your business

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

Air quality in nearby cities

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Lockport, Illinois

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Woodridge, Illinois

How accurate is Illinois, USA air quality data?

Air quality levels in US

Frequently asked questions

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

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

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What is the AQI in Romeoville, Illinois right now?

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

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

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?