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

The PM10 concentration in Romeoville, Illinois is 44.918 μg/m3 at the moment.

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

Currently, Romeoville, Illinois has a sulfur dioxide (SO2) concentration of 1.839 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 36.114 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 4.946 ppb.

Live air quality index in Romeoville, Illinois today

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

PM2.5 levels in Romeoville, Illinois are currently 11.636 μg/m3.

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)

Moderate

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)

11.64 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

44.92 μg/m³

155

255

425

605+

Ozone (O₃)

36.11 ppb

201

201+

Sulfur Dioxide (SO₂)

1.84 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.95 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.21 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

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
2026-10-20T21:00:00.000Z	56 \| moderate	11.57 \| good	38.199 \| good	40 \| good	5.702 \| good	9.088 \| good	0.206 \| good
2026-10-20T22:00:00.000Z	39 \| good	6.986 \| good	31.495 \| good	42 \| good	9.178 \| good	8.574 \| good	0.206 \| good
2026-10-20T23:00:00.000Z	42 \| good	5.733 \| good	22.816 \| good	45 \| good	4.804 \| good	25.187 \| good	0.22 \| good
2026-10-21T00:00:00.000Z	39 \| good	7.244 \| good	29.251 \| good	42 \| good	1.095 \| good	24.446 \| good	0.264 \| good
2026-10-21T01:00:00.000Z	52 \| moderate	10.013 \| good	43.578 \| good	35 \| good	0.708 \| good	30.178 \| good	0.278 \| good
2026-10-21T02:00:00.000Z	52 \| moderate	10.4 \| good	51.286 \| good	33 \| good	0.597 \| good	29.427 \| good	0.292 \| good
2026-10-21T03:00:00.000Z	62 \| moderate	14.845 \| fine	66.07 \| fine	9.019 \| good	3.782 \| good	41.179 \| good	0.338 \| good
2026-10-21T04:00:00.000Z	56 \| moderate	12.011 \| good	26.191 \| good	32 \| good	0.546 \| good	28.517 \| good	0.292 \| good
2026-10-21T05:00:00.000Z	56 \| moderate	11.659 \| good	32.049 \| good	23 \| good	1.306 \| good	24.359 \| good	0.278 \| good
2026-10-21T06:00:00.000Z	56 \| moderate	12.202 \| fine	40.299 \| good	19 \| good	1.747 \| good	22.475 \| good	0.263 \| good
2026-10-21T07:00:00.000Z	64 \| moderate	16.462 \| fine	72.357 \| fine	14 \| good	1.532 \| good	18.805 \| good	0.278 \| good
2026-10-21T08:00:00.000Z	67 \| moderate	18.322 \| fine	53.701 \| good	14 \| good	0.906 \| good	19.19 \| good	0.249 \| good
2026-10-21T09:00:00.000Z	62 \| moderate	15.476 \| fine	43.339 \| good	12 \| good	0.9 \| good	19.891 \| good	0.235 \| good
2026-10-21T10:00:00.000Z	62 \| moderate	15.034 \| fine	45.158 \| good	9 \| good	0.962 \| good	23.667 \| good	0.278 \| good
2026-10-21T11:00:00.000Z	69 \| moderate	18.967 \| fine	30.369 \| good	7 \| good	1.03 \| good	23.732 \| good	0.335 \| good
2026-10-21T12:00:00.000Z	77 \| moderate	23.342 \| fine	105.281 \| fine	10 \| good	1.006 \| good	22.608 \| good	0.35 \| good
2026-10-21T13:00:00.000Z	75 \| moderate	21.737 \| fine	89.499 \| fine	12 \| good	1.043 \| good	19.903 \| good	0.35 \| good
2026-10-21T14:00:00.000Z	67 \| moderate	17.505 \| fine	68.296 \| fine	13 \| good	1.151 \| good	21.221 \| good	0.482 \| good
2026-10-21T15:00:00.000Z	73 \| moderate	20.504 \| fine	77.577 \| fine	17 \| good	1.637 \| good	25.209 \| good	0.384 \| good
2026-10-21T16:00:00.000Z	71 \| moderate	19.857 \| fine	80.51 \| fine	17 \| good	1.727 \| good	21.62 \| good	0.292 \| good
2026-10-21T17:00:00.000Z	73 \| moderate	21.124 \| fine	74.203 \| fine	28 \| good	1.583 \| good	19.128 \| good	0.25 \| good
2026-10-21T18:00:00.000Z	62 \| moderate	14.82 \| fine	60.78 \| fine	36 \| good	1.68 \| good	16.259 \| good	0.235 \| good
2026-10-21T19:00:00.000Z	62 \| moderate	14.65 \| fine	64.934 \| fine	42 \| good	1.138 \| good	5.866 \| good	0.235 \| good
2026-10-21T20:00:00.000Z	52 \| moderate	10.332 \| good	47.228 \| good	46 \| good	1.188 \| good	6.25 \| good	0.235 \| good
2026-10-21T21:00:00.000Z	49 \| good	8.583 \| good	37.918 \| good	48 \| good	1.332 \| good	6.701 \| good	0.235 \| good
2026-10-21T22:00:00.000Z	52 \| moderate	9.814 \| good	37.244 \| good	48 \| good	1.589 \| good	10.224 \| good	0.235 \| good
2026-10-21T23:00:00.000Z	49 \| good	8.69 \| good	32.576 \| good	47 \| good	2.011 \| good	24.534 \| good	0.249 \| good
2026-10-22T00:00:00.000Z	49 \| good	9.282 \| good	41.395 \| good	43 \| good	1.465 \| good	19.09 \| good	0.307 \| good
2026-10-22T01:00:00.000Z	57 \| moderate	11.735 \| good	68.199 \| fine	39 \| good	1.109 \| good	21.611 \| good	0.351 \| good
2026-10-22T02:00:00.000Z	62 \| moderate	15.109 \| fine	65.28 \| fine	34 \| good	0.891 \| good	22.221 \| good	0.365 \| good
2026-10-22T03:00:00.000Z	44 \| good	8.405 \| good	36.785 \| good	17.256 \| good	3.145 \| good	43.194 \| good	0.585 \| good
2026-10-22T04:00:00.000Z	64 \| moderate	15.591 \| fine	55.39 \| fine	25 \| good	1.661 \| good	32.148 \| good	0.407 \| good
2026-10-22T05:00:00.000Z	71 \| moderate	20.473 \| fine	76.733 \| fine	17 \| good	1.35 \| good	30.669 \| good	0.379 \| good
2026-10-22T06:00:00.000Z	73 \| moderate	20.824 \| fine	77.254 \| fine	16 \| good	1.291 \| good	24.418 \| good	0.427 \| good
2026-10-22T07:00:00.000Z	69 \| moderate	18.594 \| fine	68.804 \| fine	14 \| good	1.311 \| good	21.735 \| good	0.427 \| good
2026-10-22T08:00:00.000Z	67 \| moderate	18.09 \| fine	78.957 \| fine	15 \| good	1.205 \| good	19.962 \| good	0.336 \| good
2026-10-22T09:00:00.000Z	69 \| moderate	19.359 \| fine	69.827 \| fine	16 \| good	1.275 \| good	19.195 \| good	0.322 \| good
2026-10-22T10:00:00.000Z	64 \| moderate	16.217 \| fine	67.783 \| fine	16 \| good	1.057 \| good	17.965 \| good	0.307 \| good
2026-10-22T11:00:00.000Z	64 \| moderate	15.72 \| fine	67.514 \| fine	21 \| good	1.071 \| good	16.292 \| good	0.425 \| good
2026-10-22T12:00:00.000Z	64 \| moderate	15.883 \| fine	68.043 \| fine	22 \| good	1.365 \| good	17.958 \| good	0.47 \| good
2026-10-22T13:00:00.000Z	69 \| moderate	18.598 \| fine	84.061 \| fine	20 \| good	1.567 \| good	18.829 \| good	0.421 \| good
2026-10-22T14:00:00.000Z	66 \| moderate	17.093 \| fine	68.833 \| fine	14 \| good	1.492 \| good	19.524 \| good	0.464 \| good
2026-10-22T15:00:00.000Z	56 \| moderate	12.241 \| fine	32.416 \| good	18 \| good	1.937 \| good	21.836 \| good	0.537 \| good
2026-10-22T16:00:00.000Z	58 \| moderate	12.634 \| fine	44.23 \| good	18 \| good	1.997 \| good	30.635 \| good	0.321 \| good
2026-10-22T17:00:00.000Z	58 \| moderate	13.366 \| fine	47.715 \| good	16 \| good	2.525 \| good	23.109 \| good	0.278 \| good
2026-10-22T18:00:00.000Z	58 \| moderate	12.545 \| fine	57.135 \| fine	21 \| good	2.048 \| good	14.07 \| good	0.235 \| good
2026-10-22T19:00:00.000Z	56 \| moderate	11.814 \| good	46.686 \| good	30 \| good	2.96 \| good	7.324 \| good	0.206 \| good
2026-10-22T20:00:00.000Z	56 \| moderate	12.016 \| good	38.881 \| good	38 \| good	1.955 \| good	5.05 \| good	0.206 \| good
2026-10-22T20:00:00.000Z	56 \| moderate	11.636 \| good	44.918 \| good	36.114 \| good	1.839 \| good	4.946 \| good	0.206 \| good
2026-10-22T21:00:00.000Z	52 \| moderate	10.306 \| good	45.642 \| good	49.414 \| good	1.873 \| good	8.671 \| good	0.2 \| good
2026-10-22T22:00:00.000Z	56 \| moderate	12.002 \| good	53.78 \| good	40.077 \| good	1.939 \| good	16.709 \| good	0.242 \| good
2026-10-22T23:00:00.000Z	64 \| moderate	16.4 \| fine	73.033 \| fine	30.721 \| good	2.31 \| good	38.503 \| good	0.349 \| good
2026-10-23T00:00:00.000Z	71 \| moderate	19.874 \| fine	87 \| fine	22.446 \| good	2.654 \| good	49.579 \| good	0.442 \| good
2026-10-23T01:00:00.000Z	73 \| moderate	21.425 \| fine	94.444 \| fine	21.125 \| good	2.737 \| good	49.923 \| good	0.463 \| good
2026-10-23T02:00:00.000Z	77 \| moderate	22.742 \| fine	99.663 \| fine	15.053 \| good	2.815 \| good	50.035 \| good	0.443 \| good
2026-10-23T03:00:00.000Z	81 \| moderate	24.73 \| fine	107.923 \| fine	11.115 \| good	2.92 \| good	49.149 \| good	0.437 \| good
2026-10-23T04:00:00.000Z	79 \| moderate	24.476 \| fine	106.687 \| fine	10.087 \| good	2.998 \| good	47.618 \| good	0.438 \| good
2026-10-23T05:00:00.000Z	79 \| moderate	23.609 \| fine	103.57 \| fine	5.803 \| good	3.014 \| good	45.77 \| good	0.432 \| good
2026-10-23T06:00:00.000Z	75 \| moderate	21.897 \| fine	96.054 \| fine	6.228 \| good	3.103 \| good	43.722 \| good	0.413 \| good
2026-10-23T07:00:00.000Z	69 \| moderate	18.87 \| fine	83.097 \| fine	8.545 \| good	3.237 \| good	41.214 \| good	0.393 \| good
2026-10-23T08:00:00.000Z	66 \| moderate	17.059 \| fine	75.723 \| fine	10.297 \| good	3.315 \| good	37.926 \| good	0.376 \| good
2026-10-23T09:00:00.000Z	64 \| moderate	16.491 \| fine	72.823 \| fine	12.116 \| good	3.308 \| good	33.826 \| good	0.36 \| good
2026-10-23T10:00:00.000Z	66 \| moderate	17.02 \| fine	75.596 \| fine	9.641 \| good	3.177 \| good	29.881 \| good	0.346 \| good
2026-10-23T11:00:00.000Z	67 \| moderate	17.87 \| fine	79.135 \| fine	8.427 \| good	2.961 \| good	27.804 \| good	0.338 \| good
2026-10-23T12:00:00.000Z	69 \| moderate	18.688 \| fine	82.863 \| fine	8.638 \| good	2.799 \| good	29.72 \| good	0.347 \| good
2026-10-23T13:00:00.000Z	69 \| moderate	19.263 \| fine	84.66 \| fine	14.703 \| good	2.642 \| good	26.321 \| good	0.379 \| good
2026-10-23T14:00:00.000Z	69 \| moderate	19.49 \| fine	86.129 \| fine	23.734 \| good	2.328 \| good	21.094 \| good	0.364 \| good
2026-10-23T15:00:00.000Z	66 \| moderate	17.46 \| fine	77.613 \| fine	33.294 \| good	2.083 \| good	18.324 \| good	0.341 \| good
2026-10-23T16:00:00.000Z	62 \| moderate	15.035 \| fine	66.617 \| fine	42.209 \| good	1.713 \| good	13.905 \| good	0.275 \| good
2026-10-23T17:00:00.000Z	58 \| moderate	12.654 \| fine	57.28 \| fine	47.408 \| good	1.57 \| good	8.946 \| good	0.223 \| good
2026-10-23T18:00:00.000Z	54 \| moderate	11.305 \| good	49.915 \| good	54.484 \| good	1.7 \| good	4.845 \| good	0.192 \| good
2026-10-23T19:00:00.000Z	54 \| moderate	10.75 \| good	47.829 \| good	55.556 \| fine	1.791 \| good	3.53 \| good	0.185 \| good
2026-10-23T20:00:00.000Z	54 \| moderate	9.972 \| good	44.308 \| good	56.301 \| fine	1.743 \| good	3.368 \| good	0.183 \| good
2026-10-23T21:00:00.000Z	54 \| moderate	10.123 \| good	45.023 \| good	55.733 \| fine	1.761 \| good	3.877 \| good	0.184 \| good
2026-10-23T22:00:00.000Z	54 \| moderate	10.759 \| good	47.686 \| good	47.109 \| good	1.786 \| good	8.802 \| good	0.209 \| good
2026-10-23T23:00:00.000Z	56 \| moderate	12.017 \| good	54.024 \| good	39.087 \| good	1.914 \| good	20.466 \| good	0.264 \| good
2026-10-24T00:00:00.000Z	60 \| moderate	13.858 \| fine	62.62 \| fine	32.507 \| good	2.111 \| good	28.984 \| good	0.294 \| good
2026-10-24T01:00:00.000Z	60 \| moderate	13.763 \| fine	61.947 \| fine	25.369 \| good	2.298 \| good	31.442 \| good	0.288 \| good
2026-10-24T02:00:00.000Z	58 \| moderate	13.301 \| fine	59.826 \| fine	26.525 \| good	2.419 \| good	31.452 \| good	0.28 \| good
2026-10-24T03:00:00.000Z	58 \| moderate	13.314 \| fine	59.682 \| fine	29.78 \| good	2.442 \| good	29.192 \| good	0.269 \| good
2026-10-24T04:00:00.000Z	58 \| moderate	12.612 \| fine	57.038 \| fine	30.103 \| good	2.336 \| good	24.659 \| good	0.257 \| good
2026-10-24T05:00:00.000Z	56 \| moderate	12.064 \| good	54.171 \| good	27.933 \| good	2.109 \| good	18.426 \| good	0.245 \| good
2026-10-24T06:00:00.000Z	58 \| moderate	13.374 \| fine	60.584 \| fine	24.933 \| good	1.876 \| good	13.765 \| good	0.235 \| good
2026-10-24T07:00:00.000Z	60 \| moderate	13.817 \| fine	62.409 \| fine	22.163 \| good	1.699 \| good	11.184 \| good	0.229 \| good
2026-10-24T08:00:00.000Z	60 \| moderate	14.479 \| fine	64.701 \| fine	20.881 \| good	1.594 \| good	9.881 \| good	0.227 \| good
2026-10-24T09:00:00.000Z	62 \| moderate	14.793 \| fine	65.581 \| fine	19.555 \| good	1.545 \| good	9.418 \| good	0.228 \| good
2026-10-24T10:00:00.000Z	60 \| moderate	14.136 \| fine	63.2 \| fine	20.249 \| good	1.519 \| good	9.688 \| good	0.231 \| good
2026-10-24T11:00:00.000Z	62 \| moderate	15.476 \| fine	69.08 \| fine	18.707 \| good	1.513 \| good	10.763 \| good	0.236 \| good
2026-10-24T12:00:00.000Z	66 \| moderate	17.354 \| fine	76.673 \| fine	20.778 \| good	1.566 \| good	14.527 \| good	0.246 \| good
2026-10-24T13:00:00.000Z	69 \| moderate	18.879 \| fine	83.239 \| fine	21.418 \| good	1.609 \| good	16.086 \| good	0.262 \| good
2026-10-24T14:00:00.000Z	71 \| moderate	19.57 \| fine	86.334 \| fine	26.705 \| good	1.609 \| good	14.564 \| good	0.276 \| good
2026-10-24T15:00:00.000Z	66 \| moderate	16.953 \| fine	74.487 \| fine	32.038 \| good	1.647 \| good	11.999 \| good	0.265 \| good
2026-10-24T16:00:00.000Z	62 \| moderate	14.834 \| fine	65.782 \| fine	42.975 \| good	1.685 \| good	10.285 \| good	0.252 \| good
2026-10-24T17:00:00.000Z	58 \| moderate	12.533 \| fine	56.675 \| fine	49.589 \| good	1.739 \| good	8.66 \| good	0.237 \| good
2026-10-24T18:00:00.000Z	56 \| moderate	11.534 \| good	51.193 \| good	53.393 \| good	1.725 \| good	6.705 \| good	0.221 \| good
2026-10-24T19:00:00.000Z	54 \| moderate	10.639 \| good	47.193 \| good	54.656 \| good	1.632 \| good	4.982 \| good	0.203 \| good
2026-10-24T20:00:00.000Z	52 \| moderate	9.86 \| good	44.077 \| good	54.002 \| good	1.539 \| good	4.182 \| good	0.193 \| good

Romeoville

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

0.21ppm

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 06:00:00 on 2026-10-22.

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 03:00:00 on 2026-10-22.

What is the AQI in Romeoville, Illinois right now?

As of now, the AQI in Romeoville, Illinois is 56, indicating Moderate 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 11.636 μg/m³.

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

The PM₁₀ concentration in Romeoville, Illinois is 44.918 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 0.206 ppm.

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

Currently, Romeoville, Illinois has a sulfur dioxide (SO₂) concentration of 1.839 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 36.114 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 4.946 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-20T21:00:00.000Z	56 \| moderate	11.57 \| good	38.199 \| good	40 \| good	5.702 \| good	9.088 \| good	0.206 \| good
2026-10-20T22:00:00.000Z	39 \| good	6.986 \| good	31.495 \| good	42 \| good	9.178 \| good	8.574 \| good	0.206 \| good
2026-10-20T23:00:00.000Z	42 \| good	5.733 \| good	22.816 \| good	45 \| good	4.804 \| good	25.187 \| good	0.22 \| good
2026-10-21T00:00:00.000Z	39 \| good	7.244 \| good	29.251 \| good	42 \| good	1.095 \| good	24.446 \| good	0.264 \| good
2026-10-21T01:00:00.000Z	52 \| moderate	10.013 \| good	43.578 \| good	35 \| good	0.708 \| good	30.178 \| good	0.278 \| good
2026-10-21T02:00:00.000Z	52 \| moderate	10.4 \| good	51.286 \| good	33 \| good	0.597 \| good	29.427 \| good	0.292 \| good
2026-10-21T03:00:00.000Z	62 \| moderate	14.845 \| fine	66.07 \| fine	9.019 \| good	3.782 \| good	41.179 \| good	0.338 \| good
2026-10-21T04:00:00.000Z	56 \| moderate	12.011 \| good	26.191 \| good	32 \| good	0.546 \| good	28.517 \| good	0.292 \| good
2026-10-21T05:00:00.000Z	56 \| moderate	11.659 \| good	32.049 \| good	23 \| good	1.306 \| good	24.359 \| good	0.278 \| good
2026-10-21T06:00:00.000Z	56 \| moderate	12.202 \| fine	40.299 \| good	19 \| good	1.747 \| good	22.475 \| good	0.263 \| good
2026-10-21T07:00:00.000Z	64 \| moderate	16.462 \| fine	72.357 \| fine	14 \| good	1.532 \| good	18.805 \| good	0.278 \| good
2026-10-21T08:00:00.000Z	67 \| moderate	18.322 \| fine	53.701 \| good	14 \| good	0.906 \| good	19.19 \| good	0.249 \| good
2026-10-21T09:00:00.000Z	62 \| moderate	15.476 \| fine	43.339 \| good	12 \| good	0.9 \| good	19.891 \| good	0.235 \| good
2026-10-21T10:00:00.000Z	62 \| moderate	15.034 \| fine	45.158 \| good	9 \| good	0.962 \| good	23.667 \| good	0.278 \| good
2026-10-21T11:00:00.000Z	69 \| moderate	18.967 \| fine	30.369 \| good	7 \| good	1.03 \| good	23.732 \| good	0.335 \| good
2026-10-21T12:00:00.000Z	77 \| moderate	23.342 \| fine	105.281 \| fine	10 \| good	1.006 \| good	22.608 \| good	0.35 \| good
2026-10-21T13:00:00.000Z	75 \| moderate	21.737 \| fine	89.499 \| fine	12 \| good	1.043 \| good	19.903 \| good	0.35 \| good
2026-10-21T14:00:00.000Z	67 \| moderate	17.505 \| fine	68.296 \| fine	13 \| good	1.151 \| good	21.221 \| good	0.482 \| good
2026-10-21T15:00:00.000Z	73 \| moderate	20.504 \| fine	77.577 \| fine	17 \| good	1.637 \| good	25.209 \| good	0.384 \| good
2026-10-21T16:00:00.000Z	71 \| moderate	19.857 \| fine	80.51 \| fine	17 \| good	1.727 \| good	21.62 \| good	0.292 \| good
2026-10-21T17:00:00.000Z	73 \| moderate	21.124 \| fine	74.203 \| fine	28 \| good	1.583 \| good	19.128 \| good	0.25 \| good
2026-10-21T18:00:00.000Z	62 \| moderate	14.82 \| fine	60.78 \| fine	36 \| good	1.68 \| good	16.259 \| good	0.235 \| good
2026-10-21T19:00:00.000Z	62 \| moderate	14.65 \| fine	64.934 \| fine	42 \| good	1.138 \| good	5.866 \| good	0.235 \| good
2026-10-21T20:00:00.000Z	52 \| moderate	10.332 \| good	47.228 \| good	46 \| good	1.188 \| good	6.25 \| good	0.235 \| good
2026-10-21T21:00:00.000Z	49 \| good	8.583 \| good	37.918 \| good	48 \| good	1.332 \| good	6.701 \| good	0.235 \| good
2026-10-21T22:00:00.000Z	52 \| moderate	9.814 \| good	37.244 \| good	48 \| good	1.589 \| good	10.224 \| good	0.235 \| good
2026-10-21T23:00:00.000Z	49 \| good	8.69 \| good	32.576 \| good	47 \| good	2.011 \| good	24.534 \| good	0.249 \| good
2026-10-22T00:00:00.000Z	49 \| good	9.282 \| good	41.395 \| good	43 \| good	1.465 \| good	19.09 \| good	0.307 \| good
2026-10-22T01:00:00.000Z	57 \| moderate	11.735 \| good	68.199 \| fine	39 \| good	1.109 \| good	21.611 \| good	0.351 \| good
2026-10-22T02:00:00.000Z	62 \| moderate	15.109 \| fine	65.28 \| fine	34 \| good	0.891 \| good	22.221 \| good	0.365 \| good
2026-10-22T03:00:00.000Z	44 \| good	8.405 \| good	36.785 \| good	17.256 \| good	3.145 \| good	43.194 \| good	0.585 \| good
2026-10-22T04:00:00.000Z	64 \| moderate	15.591 \| fine	55.39 \| fine	25 \| good	1.661 \| good	32.148 \| good	0.407 \| good
2026-10-22T05:00:00.000Z	71 \| moderate	20.473 \| fine	76.733 \| fine	17 \| good	1.35 \| good	30.669 \| good	0.379 \| good
2026-10-22T06:00:00.000Z	73 \| moderate	20.824 \| fine	77.254 \| fine	16 \| good	1.291 \| good	24.418 \| good	0.427 \| good
2026-10-22T07:00:00.000Z	69 \| moderate	18.594 \| fine	68.804 \| fine	14 \| good	1.311 \| good	21.735 \| good	0.427 \| good
2026-10-22T08:00:00.000Z	67 \| moderate	18.09 \| fine	78.957 \| fine	15 \| good	1.205 \| good	19.962 \| good	0.336 \| good
2026-10-22T09:00:00.000Z	69 \| moderate	19.359 \| fine	69.827 \| fine	16 \| good	1.275 \| good	19.195 \| good	0.322 \| good
2026-10-22T10:00:00.000Z	64 \| moderate	16.217 \| fine	67.783 \| fine	16 \| good	1.057 \| good	17.965 \| good	0.307 \| good
2026-10-22T11:00:00.000Z	64 \| moderate	15.72 \| fine	67.514 \| fine	21 \| good	1.071 \| good	16.292 \| good	0.425 \| good
2026-10-22T12:00:00.000Z	64 \| moderate	15.883 \| fine	68.043 \| fine	22 \| good	1.365 \| good	17.958 \| good	0.47 \| good
2026-10-22T13:00:00.000Z	69 \| moderate	18.598 \| fine	84.061 \| fine	20 \| good	1.567 \| good	18.829 \| good	0.421 \| good
2026-10-22T14:00:00.000Z	66 \| moderate	17.093 \| fine	68.833 \| fine	14 \| good	1.492 \| good	19.524 \| good	0.464 \| good
2026-10-22T15:00:00.000Z	56 \| moderate	12.241 \| fine	32.416 \| good	18 \| good	1.937 \| good	21.836 \| good	0.537 \| good
2026-10-22T16:00:00.000Z	58 \| moderate	12.634 \| fine	44.23 \| good	18 \| good	1.997 \| good	30.635 \| good	0.321 \| good
2026-10-22T17:00:00.000Z	58 \| moderate	13.366 \| fine	47.715 \| good	16 \| good	2.525 \| good	23.109 \| good	0.278 \| good
2026-10-22T18:00:00.000Z	58 \| moderate	12.545 \| fine	57.135 \| fine	21 \| good	2.048 \| good	14.07 \| good	0.235 \| good
2026-10-22T19:00:00.000Z	56 \| moderate	11.814 \| good	46.686 \| good	30 \| good	2.96 \| good	7.324 \| good	0.206 \| good
2026-10-22T20:00:00.000Z	56 \| moderate	12.016 \| good	38.881 \| good	38 \| good	1.955 \| good	5.05 \| good	0.206 \| good
2026-10-22T20:00:00.000Z	56 \| moderate	11.636 \| good	44.918 \| good	36.114 \| good	1.839 \| good	4.946 \| good	0.206 \| good
2026-10-22T21:00:00.000Z	52 \| moderate	10.306 \| good	45.642 \| good	49.414 \| good	1.873 \| good	8.671 \| good	0.2 \| good
2026-10-22T22:00:00.000Z	56 \| moderate	12.002 \| good	53.78 \| good	40.077 \| good	1.939 \| good	16.709 \| good	0.242 \| good
2026-10-22T23:00:00.000Z	64 \| moderate	16.4 \| fine	73.033 \| fine	30.721 \| good	2.31 \| good	38.503 \| good	0.349 \| good
2026-10-23T00:00:00.000Z	71 \| moderate	19.874 \| fine	87 \| fine	22.446 \| good	2.654 \| good	49.579 \| good	0.442 \| good
2026-10-23T01:00:00.000Z	73 \| moderate	21.425 \| fine	94.444 \| fine	21.125 \| good	2.737 \| good	49.923 \| good	0.463 \| good
2026-10-23T02:00:00.000Z	77 \| moderate	22.742 \| fine	99.663 \| fine	15.053 \| good	2.815 \| good	50.035 \| good	0.443 \| good
2026-10-23T03:00:00.000Z	81 \| moderate	24.73 \| fine	107.923 \| fine	11.115 \| good	2.92 \| good	49.149 \| good	0.437 \| good
2026-10-23T04:00:00.000Z	79 \| moderate	24.476 \| fine	106.687 \| fine	10.087 \| good	2.998 \| good	47.618 \| good	0.438 \| good
2026-10-23T05:00:00.000Z	79 \| moderate	23.609 \| fine	103.57 \| fine	5.803 \| good	3.014 \| good	45.77 \| good	0.432 \| good
2026-10-23T06:00:00.000Z	75 \| moderate	21.897 \| fine	96.054 \| fine	6.228 \| good	3.103 \| good	43.722 \| good	0.413 \| good
2026-10-23T07:00:00.000Z	69 \| moderate	18.87 \| fine	83.097 \| fine	8.545 \| good	3.237 \| good	41.214 \| good	0.393 \| good
2026-10-23T08:00:00.000Z	66 \| moderate	17.059 \| fine	75.723 \| fine	10.297 \| good	3.315 \| good	37.926 \| good	0.376 \| good
2026-10-23T09:00:00.000Z	64 \| moderate	16.491 \| fine	72.823 \| fine	12.116 \| good	3.308 \| good	33.826 \| good	0.36 \| good
2026-10-23T10:00:00.000Z	66 \| moderate	17.02 \| fine	75.596 \| fine	9.641 \| good	3.177 \| good	29.881 \| good	0.346 \| good
2026-10-23T11:00:00.000Z	67 \| moderate	17.87 \| fine	79.135 \| fine	8.427 \| good	2.961 \| good	27.804 \| good	0.338 \| good
2026-10-23T12:00:00.000Z	69 \| moderate	18.688 \| fine	82.863 \| fine	8.638 \| good	2.799 \| good	29.72 \| good	0.347 \| good
2026-10-23T13:00:00.000Z	69 \| moderate	19.263 \| fine	84.66 \| fine	14.703 \| good	2.642 \| good	26.321 \| good	0.379 \| good
2026-10-23T14:00:00.000Z	69 \| moderate	19.49 \| fine	86.129 \| fine	23.734 \| good	2.328 \| good	21.094 \| good	0.364 \| good
2026-10-23T15:00:00.000Z	66 \| moderate	17.46 \| fine	77.613 \| fine	33.294 \| good	2.083 \| good	18.324 \| good	0.341 \| good
2026-10-23T16:00:00.000Z	62 \| moderate	15.035 \| fine	66.617 \| fine	42.209 \| good	1.713 \| good	13.905 \| good	0.275 \| good
2026-10-23T17:00:00.000Z	58 \| moderate	12.654 \| fine	57.28 \| fine	47.408 \| good	1.57 \| good	8.946 \| good	0.223 \| good
2026-10-23T18:00:00.000Z	54 \| moderate	11.305 \| good	49.915 \| good	54.484 \| good	1.7 \| good	4.845 \| good	0.192 \| good
2026-10-23T19:00:00.000Z	54 \| moderate	10.75 \| good	47.829 \| good	55.556 \| fine	1.791 \| good	3.53 \| good	0.185 \| good
2026-10-23T20:00:00.000Z	54 \| moderate	9.972 \| good	44.308 \| good	56.301 \| fine	1.743 \| good	3.368 \| good	0.183 \| good
2026-10-23T21:00:00.000Z	54 \| moderate	10.123 \| good	45.023 \| good	55.733 \| fine	1.761 \| good	3.877 \| good	0.184 \| good
2026-10-23T22:00:00.000Z	54 \| moderate	10.759 \| good	47.686 \| good	47.109 \| good	1.786 \| good	8.802 \| good	0.209 \| good
2026-10-23T23:00:00.000Z	56 \| moderate	12.017 \| good	54.024 \| good	39.087 \| good	1.914 \| good	20.466 \| good	0.264 \| good
2026-10-24T00:00:00.000Z	60 \| moderate	13.858 \| fine	62.62 \| fine	32.507 \| good	2.111 \| good	28.984 \| good	0.294 \| good
2026-10-24T01:00:00.000Z	60 \| moderate	13.763 \| fine	61.947 \| fine	25.369 \| good	2.298 \| good	31.442 \| good	0.288 \| good
2026-10-24T02:00:00.000Z	58 \| moderate	13.301 \| fine	59.826 \| fine	26.525 \| good	2.419 \| good	31.452 \| good	0.28 \| good
2026-10-24T03:00:00.000Z	58 \| moderate	13.314 \| fine	59.682 \| fine	29.78 \| good	2.442 \| good	29.192 \| good	0.269 \| good
2026-10-24T04:00:00.000Z	58 \| moderate	12.612 \| fine	57.038 \| fine	30.103 \| good	2.336 \| good	24.659 \| good	0.257 \| good
2026-10-24T05:00:00.000Z	56 \| moderate	12.064 \| good	54.171 \| good	27.933 \| good	2.109 \| good	18.426 \| good	0.245 \| good
2026-10-24T06:00:00.000Z	58 \| moderate	13.374 \| fine	60.584 \| fine	24.933 \| good	1.876 \| good	13.765 \| good	0.235 \| good
2026-10-24T07:00:00.000Z	60 \| moderate	13.817 \| fine	62.409 \| fine	22.163 \| good	1.699 \| good	11.184 \| good	0.229 \| good
2026-10-24T08:00:00.000Z	60 \| moderate	14.479 \| fine	64.701 \| fine	20.881 \| good	1.594 \| good	9.881 \| good	0.227 \| good
2026-10-24T09:00:00.000Z	62 \| moderate	14.793 \| fine	65.581 \| fine	19.555 \| good	1.545 \| good	9.418 \| good	0.228 \| good
2026-10-24T10:00:00.000Z	60 \| moderate	14.136 \| fine	63.2 \| fine	20.249 \| good	1.519 \| good	9.688 \| good	0.231 \| good
2026-10-24T11:00:00.000Z	62 \| moderate	15.476 \| fine	69.08 \| fine	18.707 \| good	1.513 \| good	10.763 \| good	0.236 \| good
2026-10-24T12:00:00.000Z	66 \| moderate	17.354 \| fine	76.673 \| fine	20.778 \| good	1.566 \| good	14.527 \| good	0.246 \| good
2026-10-24T13:00:00.000Z	69 \| moderate	18.879 \| fine	83.239 \| fine	21.418 \| good	1.609 \| good	16.086 \| good	0.262 \| good
2026-10-24T14:00:00.000Z	71 \| moderate	19.57 \| fine	86.334 \| fine	26.705 \| good	1.609 \| good	14.564 \| good	0.276 \| good
2026-10-24T15:00:00.000Z	66 \| moderate	16.953 \| fine	74.487 \| fine	32.038 \| good	1.647 \| good	11.999 \| good	0.265 \| good
2026-10-24T16:00:00.000Z	62 \| moderate	14.834 \| fine	65.782 \| fine	42.975 \| good	1.685 \| good	10.285 \| good	0.252 \| good
2026-10-24T17:00:00.000Z	58 \| moderate	12.533 \| fine	56.675 \| fine	49.589 \| good	1.739 \| good	8.66 \| good	0.237 \| good
2026-10-24T18:00:00.000Z	56 \| moderate	11.534 \| good	51.193 \| good	53.393 \| good	1.725 \| good	6.705 \| good	0.221 \| good
2026-10-24T19:00:00.000Z	54 \| moderate	10.639 \| good	47.193 \| good	54.656 \| good	1.632 \| good	4.982 \| good	0.203 \| good
2026-10-24T20:00:00.000Z	52 \| moderate	9.86 \| good	44.077 \| good	54.002 \| good	1.539 \| good	4.182 \| good	0.193 \| good

Live 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)

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

Air quality in nearby cities

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Frequently asked questions

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

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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?

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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?