What are the current PM10 levels at Naperville, Illinois?

The current PM10 levels in Naperville, Illinois are 27.794 μg/m3.

What are the current sulfur dioxide (SO2) levels at Naperville, Illinois?

The current sulfur dioxide (SO2) levels in Naperville, Illinois are 1.906 ppb.

What are the current ozone (O3) levels at Naperville, Illinois?

The current ozone (O3) levels at Naperville, Illinois is 44.412 ppm.

What are the current nitrogen dioxide (NO2) levels at Naperville, Illinois?

The current nitrogen dioxide (NO2) levels at Naperville, Illinois is 4.709 ppb.

Real-time air quality index in Naperville, Illinois today

Q: What are the current PM2.5 levels in Naperville, Illinois?

The measured PM2.5 levels in Naperville, Illinois at present are 6.275 μg/m3.

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

Good

Naperville, Illinois

Last updated: ... (Local time)

Common air pollutants in Naperville, Illinois

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

6.28 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

27.79 μg/m³

155

255

425

605+

Ozone (O₃)

44.41 ppb

201

201+

Sulfur Dioxide (SO₂)

1.91 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.71 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.14 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Naperville, Illinois

Get Live Pollen Counts

Naperville, Illinois

Scroll To Air Quality Map

Track live Naperville, Illinois air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-07-21T23:00:00.000Z	52 \| moderate	10.43 \| good	46.704 \| good	46.629 \| good	1.686 \| good	3.104 \| good	0.22 \| good
2026-07-22T00:00:00.000Z	52 \| moderate	10.452 \| good	46.693 \| good	43.923 \| good	2.476 \| good	1.916 \| good	0.189 \| good
2026-07-22T01:00:00.000Z	49 \| good	8.73 \| good	38.578 \| good	44.81 \| good	1.268 \| good	2.524 \| good	0.189 \| good
2026-07-22T02:00:00.000Z	44 \| good	7.77 \| good	34.497 \| good	37.616 \| good	0.841 \| good	2.588 \| good	0.189 \| good
2026-07-22T03:00:00.000Z	44 \| good	7.801 \| good	34.722 \| good	33.33 \| good	0.632 \| good	3.03 \| good	0.145 \| good
2026-07-22T04:00:00.000Z	28 \| good	4.77 \| good	20.855 \| good	30.002 \| good	0.7 \| good	3.398 \| good	0.145 \| good
2026-07-22T05:00:00.000Z	25 \| good	4.476 \| good	19.975 \| good	27.109 \| good	0.635 \| good	2.883 \| good	0.145 \| good
2026-07-22T06:00:00.000Z	22 \| good	3.765 \| good	16.822 \| good	22.926 \| good	0.399 \| good	2.587 \| good	0.162 \| good
2026-07-22T07:00:00.000Z	22 \| good	3.773 \| good	16.78 \| good	22.487 \| good	0.526 \| good	2.604 \| good	0.162 \| good
2026-07-22T08:00:00.000Z	21 \| good	3.188 \| good	13.899 \| good	23.445 \| good	0.636 \| good	3.624 \| good	0.162 \| good
2026-07-22T09:00:00.000Z	21 \| good	2.769 \| good	11.78 \| good	22.502 \| good	0.957 \| good	3.469 \| good	0.183 \| good
2026-07-22T10:00:00.000Z	23 \| good	2.477 \| good	10.024 \| good	24.738 \| good	0.661 \| good	4.627 \| good	0.177 \| good
2026-07-22T11:00:00.000Z	21 \| good	2.282 \| good	9.942 \| good	23.106 \| good	0.718 \| good	6.199 \| good	0.211 \| good
2026-07-22T12:00:00.000Z	20 \| good	2.512 \| good	10.097 \| good	21.806 \| good	0.74 \| good	7.272 \| good	0.229 \| good
2026-07-22T13:00:00.000Z	20 \| good	2.511 \| good	10.152 \| good	21.84 \| good	0.476 \| good	7.619 \| good	0.229 \| good
2026-07-22T14:00:00.000Z	24 \| good	2.613 \| good	11.074 \| good	26.333 \| good	0.459 \| good	7.297 \| good	0.18 \| good
2026-07-22T15:00:00.000Z	24 \| good	2.804 \| good	12.039 \| good	25.577 \| good	0.844 \| good	2.863 \| good	0.156 \| good
2026-07-22T16:00:00.000Z	26 \| good	2.806 \| good	12.01 \| good	27.873 \| good	0.903 \| good	2.624 \| good	0.16 \| good
2026-07-22T17:00:00.000Z	28 \| good	2.71 \| good	11.112 \| good	29.975 \| good	1.952 \| good	1.556 \| good	0.16 \| good
2026-07-22T18:00:00.000Z	31 \| good	3.492 \| good	15.807 \| good	33.753 \| good	2.761 \| good	1.572 \| good	0.16 \| good
2026-07-22T19:00:00.000Z	33 \| good	3.956 \| good	17.659 \| good	35.552 \| good	1.39 \| good	2.951 \| good	0.16 \| good
2026-07-22T20:00:00.000Z	34 \| good	4.334 \| good	18.803 \| good	37.434 \| good	1.39 \| good	3.055 \| good	0.126 \| good
2026-07-22T21:00:00.000Z	35 \| good	4.439 \| good	19.71 \| good	37.728 \| good	1.882 \| good	3.454 \| good	0.144 \| good
2026-07-22T22:00:00.000Z	35 \| good	4.555 \| good	19.781 \| good	37.507 \| good	2.502 \| good	2.028 \| good	0.113 \| good
2026-07-22T23:00:00.000Z	36 \| good	4.56 \| good	20.087 \| good	39.278 \| good	0.544 \| good	2.84 \| good	0.113 \| good
2026-07-23T00:00:00.000Z	35 \| good	4.924 \| good	21.661 \| good	38.175 \| good	0.844 \| good	2.706 \| good	0.144 \| good
2026-07-23T01:00:00.000Z	38 \| good	7.284 \| good	32.46 \| good	38.607 \| good	1.449 \| good	4.503 \| good	0.144 \| good
2026-07-23T02:00:00.000Z	49 \| good	8.81 \| good	39.451 \| good	36.106 \| good	1.132 \| good	4.307 \| good	0.159 \| good
2026-07-23T03:00:00.000Z	54 \| moderate	10.77 \| good	47.534 \| good	16.732 \| good	0.873 \| good	7.439 \| good	0.135 \| good
2026-07-23T04:00:00.000Z	33 \| good	6.298 \| good	27.911 \| good	28.928 \| good	0.585 \| good	9.31 \| good	0.204 \| good
2026-07-23T05:00:00.000Z	33 \| good	6.297 \| good	27.915 \| good	32.714 \| good	0.63 \| good	9.612 \| good	0.202 \| good
2026-07-23T06:00:00.000Z	38 \| good	6.542 \| good	29.513 \| good	22.995 \| good	0.848 \| good	8.425 \| good	0.159 \| good
2026-07-23T07:00:00.000Z	38 \| good	6.665 \| good	30.157 \| good	13.102 \| good	0.833 \| good	12.6 \| good	0.159 \| good
2026-07-23T08:00:00.000Z	38 \| good	6.921 \| good	30.846 \| good	9.856 \| good	0.923 \| good	14.045 \| good	0.159 \| good
2026-07-23T09:00:00.000Z	38 \| good	6.744 \| good	30.331 \| good	7.48 \| good	1.02 \| good	12.403 \| good	0.159 \| good
2026-07-23T10:00:00.000Z	38 \| good	6.519 \| good	29.278 \| good	6.666 \| good	1.146 \| good	13.198 \| good	0.189 \| good
2026-07-23T11:00:00.000Z	38 \| good	6.557 \| good	29.379 \| good	5.759 \| good	1.298 \| good	11.748 \| good	0.202 \| good
2026-07-23T12:00:00.000Z	38 \| good	7.012 \| good	31.292 \| good	5.282 \| good	1.455 \| good	13.897 \| good	0.259 \| good
2026-07-23T13:00:00.000Z	38 \| good	7.053 \| good	31.722 \| good	14.728 \| good	1.753 \| good	15.767 \| good	0.259 \| good
2026-07-23T14:00:00.000Z	38 \| good	6.688 \| good	30.262 \| good	11.487 \| good	2.486 \| good	13.241 \| good	0.275 \| good
2026-07-23T15:00:00.000Z	33 \| good	5.895 \| good	26.774 \| good	26.217 \| good	3.1 \| good	11.246 \| good	0.245 \| good
2026-07-23T16:00:00.000Z	33 \| good	5.77 \| good	24.942 \| good	30.225 \| good	3.221 \| good	5.215 \| good	0.15 \| good
2026-07-23T17:00:00.000Z	33 \| good	5.609 \| good	24.048 \| good	30.992 \| good	2.471 \| good	3.889 \| good	0.126 \| good
2026-07-23T18:00:00.000Z	33 \| good	5.691 \| good	24.91 \| good	35.657 \| good	2.277 \| good	6.706 \| good	0.175 \| good
2026-07-23T19:00:00.000Z	33 \| good	5.97 \| good	26.743 \| good	36.481 \| good	1.967 \| good	6.418 \| good	0.143 \| good
2026-07-23T20:00:00.000Z	39 \| good	6.264 \| good	27.756 \| good	41.717 \| good	1.538 \| good	4.851 \| good	0.143 \| good
2026-07-23T21:00:00.000Z	41 \| good	6.275 \| good	27.794 \| good	44.412 \| good	1.906 \| good	4.709 \| good	0.143 \| good
2026-07-23T22:00:00.000Z	41 \| good	6.275 \| good	27.794 \| good	44.412 \| good	1.906 \| good	4.709 \| good	0.143 \| good
2026-07-23T23:00:00.000Z	44 \| good	4.848 \| good	20.944 \| good	47.558 \| good	1.376 \| good	2.625 \| good	0.118 \| good
2026-07-24T00:00:00.000Z	37 \| good	5.955 \| good	26.71 \| good	39.938 \| good	1.402 \| good	3.385 \| good	0.122 \| good
2026-07-24T01:00:00.000Z	49 \| good	9.49 \| good	42.262 \| good	37.046 \| good	1.373 \| good	6.851 \| good	0.142 \| good
2026-07-24T02:00:00.000Z	58 \| moderate	13.213 \| fine	59.178 \| fine	31.377 \| good	1.345 \| good	13.166 \| good	0.174 \| good
2026-07-24T03:00:00.000Z	62 \| moderate	15.379 \| fine	68.829 \| fine	27.481 \| good	1.343 \| good	18.162 \| good	0.197 \| good
2026-07-24T04:00:00.000Z	56 \| moderate	11.613 \| good	51.302 \| good	24.58 \| good	1.396 \| good	22.142 \| good	0.219 \| good
2026-07-24T05:00:00.000Z	49 \| good	9.415 \| good	42.14 \| good	19.319 \| good	1.459 \| good	23.57 \| good	0.243 \| good
2026-07-24T06:00:00.000Z	33 \| good	5.863 \| good	25.492 \| good	14.064 \| good	1.486 \| good	23.837 \| good	0.258 \| good
2026-07-24T07:00:00.000Z	27 \| good	4.866 \| good	21.222 \| good	13.987 \| good	1.523 \| good	23.75 \| good	0.265 \| good
2026-07-24T08:00:00.000Z	23 \| good	2.797 \| good	11.464 \| good	12.947 \| good	1.524 \| good	23.558 \| good	0.27 \| good
2026-07-24T09:00:00.000Z	22 \| good	0.734 \| good	2.439 \| good	10.105 \| good	1.517 \| good	23.157 \| good	0.265 \| good
2026-07-24T10:00:00.000Z	22 \| good	0.68 \| good	2.254 \| good	3.657 \| good	1.527 \| good	23.015 \| good	0.254 \| good
2026-07-24T11:00:00.000Z	20 \| good	0.388 \| good	1.256 \| good	2.604 \| good	1.551 \| good	21.142 \| good	0.251 \| good
2026-07-24T12:00:00.000Z	16 \| good	1.202 \| good	5.194 \| good	4.144 \| good	1.556 \| good	17.483 \| good	0.244 \| good
2026-07-24T13:00:00.000Z	13 \| good	0.999 \| good	4.096 \| good	13.835 \| good	1.756 \| good	13.65 \| good	0.198 \| good
2026-07-24T14:00:00.000Z	25 \| good	0.836 \| good	3.227 \| good	27.201 \| good	1.905 \| good	9.958 \| good	0.174 \| good
2026-07-24T15:00:00.000Z	33 \| good	0.626 \| good	2.324 \| good	35.653 \| good	1.833 \| good	7.075 \| good	0.163 \| good
2026-07-24T16:00:00.000Z	39 \| good	0.778 \| good	3.229 \| good	41.5 \| good	1.528 \| good	4.263 \| good	0.153 \| good
2026-07-24T17:00:00.000Z	40 \| good	1.405 \| good	5.647 \| good	43.03 \| good	1.158 \| good	2.229 \| good	0.144 \| good
2026-07-24T18:00:00.000Z	43 \| good	1.371 \| good	5.611 \| good	45.947 \| good	0.889 \| good	1.289 \| good	0.14 \| good
2026-07-24T19:00:00.000Z	44 \| good	1.402 \| good	5.816 \| good	48.045 \| good	0.781 \| good	1.031 \| good	0.14 \| good
2026-07-24T20:00:00.000Z	46 \| good	1.339 \| good	4.979 \| good	50.154 \| good	0.716 \| good	1.001 \| good	0.143 \| good
2026-07-24T21:00:00.000Z	50 \| good	1.323 \| good	4.999 \| good	54.338 \| good	0.659 \| good	1.058 \| good	0.145 \| good
2026-07-24T22:00:00.000Z	50 \| good	1.787 \| good	7.059 \| good	53.706 \| good	0.592 \| good	1.175 \| good	0.148 \| good
2026-07-24T23:00:00.000Z	46 \| good	1.828 \| good	7.894 \| good	50.322 \| good	0.553 \| good	1.474 \| good	0.152 \| good
2026-07-25T00:00:00.000Z	41 \| good	1.982 \| good	7.981 \| good	43.713 \| good	0.53 \| good	2.138 \| good	0.157 \| good
2026-07-25T01:00:00.000Z	32 \| good	2.133 \| good	8.851 \| good	34.501 \| good	0.518 \| good	3.721 \| good	0.164 \| good
2026-07-25T02:00:00.000Z	31 \| good	2.158 \| good	8.912 \| good	32.783 \| good	0.534 \| good	6.113 \| good	0.174 \| good
2026-07-25T03:00:00.000Z	28 \| good	2.204 \| good	9.019 \| good	30.398 \| good	0.549 \| good	7.175 \| good	0.179 \| good
2026-07-25T04:00:00.000Z	26 \| good	2.758 \| good	11.702 \| good	27.928 \| good	0.572 \| good	7.61 \| good	0.182 \| good
2026-07-25T05:00:00.000Z	24 \| good	1.013 \| good	4.308 \| good	25.565 \| good	0.599 \| good	7.651 \| good	0.185 \| good
2026-07-25T06:00:00.000Z	21 \| good	2.534 \| good	9.902 \| good	22.898 \| good	0.616 \| good	7.621 \| good	0.188 \| good
2026-07-25T07:00:00.000Z	19 \| good	0.717 \| good	2.405 \| good	21.417 \| good	0.636 \| good	8.656 \| good	0.193 \| good
2026-07-25T08:00:00.000Z	16 \| good	0.73 \| good	2.444 \| good	16.99 \| good	0.668 \| good	10.367 \| good	0.201 \| good
2026-07-25T09:00:00.000Z	16 \| good	1.018 \| good	4.227 \| good	16.567 \| good	0.698 \| good	12.045 \| good	0.209 \| good
2026-07-25T10:00:00.000Z	11 \| good	1.016 \| good	4.227 \| good	11.678 \| good	0.728 \| good	12.477 \| good	0.212 \| good
2026-07-25T11:00:00.000Z	11 \| good	0.008 \| good	0 \| good	10.407 \| good	0.757 \| good	12.089 \| good	0.213 \| good
2026-07-25T12:00:00.000Z	11 \| good	0.066 \| good	0.191 \| good	11.604 \| good	0.766 \| good	11.432 \| good	0.214 \| good
2026-07-25T13:00:00.000Z	10 \| good	0.515 \| good	2.064 \| good	10.923 \| good	0.861 \| good	9.375 \| good	0.206 \| good
2026-07-25T14:00:00.000Z	15 \| good	2.29 \| good	9.17 \| good	16.372 \| good	0.92 \| good	7.309 \| good	0.199 \| good
2026-07-25T15:00:00.000Z	44 \| good	8.356 \| good	37.022 \| good	24.324 \| good	0.985 \| good	5.35 \| good	0.193 \| good
2026-07-25T16:00:00.000Z	38 \| good	6.657 \| good	29.954 \| good	34.032 \| good	1.014 \| good	3.806 \| good	0.19 \| good
2026-07-25T17:00:00.000Z	31 \| good	4.759 \| good	20.84 \| good	34.397 \| good	1.055 \| good	2.386 \| good	0.188 \| good
2026-07-25T18:00:00.000Z	29 \| good	4.38 \| good	18.987 \| good	31.045 \| good	1.054 \| good	1.387 \| good	0.188 \| good
2026-07-25T19:00:00.000Z	30 \| good	4.14 \| good	17.98 \| good	31.632 \| good	0.937 \| good	1.202 \| good	0.188 \| good
2026-07-25T20:00:00.000Z	29 \| good	4.823 \| good	20.847 \| good	31.355 \| good	0.87 \| good	1.345 \| good	0.19 \| good
2026-07-25T21:00:00.000Z	30 \| good	2.816 \| good	11.891 \| good	32.136 \| good	0.83 \| good	1.508 \| good	0.191 \| good
2026-07-25T22:00:00.000Z	31 \| good	0.885 \| good	3.222 \| good	32.714 \| good	0.813 \| good	1.767 \| good	0.194 \| good

Naperville

Empower business decisions with accurate air quality data

Naperville, Illinois air quality map: Real-time AQI near you

0.15ppm

How accurate is Illinois, USA air quality data?

Air quality measurements for Illinois, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.

Source: Ambee Data Sources

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

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Frequently asked questions

How frequently is the air quality data for Naperville, Illinois updated?

Air quality data for Naperville, Illinois is updated on an hourly basis.

When did Naperville, Illinois experience the worst air quality in the last 24 hours?

The worst air quality in Naperville, Illinois was recorded at 03:00:00 on 2026-07-23.

When did Naperville, Illinois have its best air quality in the last 24 hours?

The best air quality in Naperville, Illinois was recorded at 07:00:00 on 2026-07-23.

What is the real-time air quality index for Naperville, Illinois?

The real-time air quality index in Naperville, Illinois is 41, currently categorized as Good.

Which pollutant is found most often in Naperville, Illinois?

The most common pollutant in Naperville, Illinois is O3.

What can I do if the air quality in Naperville, Illinois is poor?

If the air quality in Naperville, Illinois is poor, limit outdoor activities and use a mask to safeguard your health.

What are the current PM_2.5 levels in Naperville, Illinois?

The measured PM_2.5 levels in Naperville, Illinois at present are 6.275 μg/m³.

What are the current PM₁₀ levels at Naperville, Illinois?

The current PM₁₀ levels in Naperville, Illinois are 27.794 μg/m³.

What are the current carbon monoxide (CO) levels at Naperville, Illinois?

The current carbon monoxide (CO) level in Naperville, Illinois is 0.143 ppm.

What are the current sulfur dioxide (SO₂) levels at Naperville, Illinois?

The current sulfur dioxide (SO₂) levels in Naperville, Illinois are 1.906 ppb.

What are the current ozone (O₃) levels at Naperville, Illinois?

The current ozone (O₃) levels at Naperville, Illinois is 44.412 ppm.

What are the current nitrogen dioxide (NO₂) levels at Naperville, Illinois?

The current nitrogen dioxide (NO₂) levels at Naperville, Illinois is 4.709 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-07-21T23:00:00.000Z	52 \| moderate	10.43 \| good	46.704 \| good	46.629 \| good	1.686 \| good	3.104 \| good	0.22 \| good
2026-07-22T00:00:00.000Z	52 \| moderate	10.452 \| good	46.693 \| good	43.923 \| good	2.476 \| good	1.916 \| good	0.189 \| good
2026-07-22T01:00:00.000Z	49 \| good	8.73 \| good	38.578 \| good	44.81 \| good	1.268 \| good	2.524 \| good	0.189 \| good
2026-07-22T02:00:00.000Z	44 \| good	7.77 \| good	34.497 \| good	37.616 \| good	0.841 \| good	2.588 \| good	0.189 \| good
2026-07-22T03:00:00.000Z	44 \| good	7.801 \| good	34.722 \| good	33.33 \| good	0.632 \| good	3.03 \| good	0.145 \| good
2026-07-22T04:00:00.000Z	28 \| good	4.77 \| good	20.855 \| good	30.002 \| good	0.7 \| good	3.398 \| good	0.145 \| good
2026-07-22T05:00:00.000Z	25 \| good	4.476 \| good	19.975 \| good	27.109 \| good	0.635 \| good	2.883 \| good	0.145 \| good
2026-07-22T06:00:00.000Z	22 \| good	3.765 \| good	16.822 \| good	22.926 \| good	0.399 \| good	2.587 \| good	0.162 \| good
2026-07-22T07:00:00.000Z	22 \| good	3.773 \| good	16.78 \| good	22.487 \| good	0.526 \| good	2.604 \| good	0.162 \| good
2026-07-22T08:00:00.000Z	21 \| good	3.188 \| good	13.899 \| good	23.445 \| good	0.636 \| good	3.624 \| good	0.162 \| good
2026-07-22T09:00:00.000Z	21 \| good	2.769 \| good	11.78 \| good	22.502 \| good	0.957 \| good	3.469 \| good	0.183 \| good
2026-07-22T10:00:00.000Z	23 \| good	2.477 \| good	10.024 \| good	24.738 \| good	0.661 \| good	4.627 \| good	0.177 \| good
2026-07-22T11:00:00.000Z	21 \| good	2.282 \| good	9.942 \| good	23.106 \| good	0.718 \| good	6.199 \| good	0.211 \| good
2026-07-22T12:00:00.000Z	20 \| good	2.512 \| good	10.097 \| good	21.806 \| good	0.74 \| good	7.272 \| good	0.229 \| good
2026-07-22T13:00:00.000Z	20 \| good	2.511 \| good	10.152 \| good	21.84 \| good	0.476 \| good	7.619 \| good	0.229 \| good
2026-07-22T14:00:00.000Z	24 \| good	2.613 \| good	11.074 \| good	26.333 \| good	0.459 \| good	7.297 \| good	0.18 \| good
2026-07-22T15:00:00.000Z	24 \| good	2.804 \| good	12.039 \| good	25.577 \| good	0.844 \| good	2.863 \| good	0.156 \| good
2026-07-22T16:00:00.000Z	26 \| good	2.806 \| good	12.01 \| good	27.873 \| good	0.903 \| good	2.624 \| good	0.16 \| good
2026-07-22T17:00:00.000Z	28 \| good	2.71 \| good	11.112 \| good	29.975 \| good	1.952 \| good	1.556 \| good	0.16 \| good
2026-07-22T18:00:00.000Z	31 \| good	3.492 \| good	15.807 \| good	33.753 \| good	2.761 \| good	1.572 \| good	0.16 \| good
2026-07-22T19:00:00.000Z	33 \| good	3.956 \| good	17.659 \| good	35.552 \| good	1.39 \| good	2.951 \| good	0.16 \| good
2026-07-22T20:00:00.000Z	34 \| good	4.334 \| good	18.803 \| good	37.434 \| good	1.39 \| good	3.055 \| good	0.126 \| good
2026-07-22T21:00:00.000Z	35 \| good	4.439 \| good	19.71 \| good	37.728 \| good	1.882 \| good	3.454 \| good	0.144 \| good
2026-07-22T22:00:00.000Z	35 \| good	4.555 \| good	19.781 \| good	37.507 \| good	2.502 \| good	2.028 \| good	0.113 \| good
2026-07-22T23:00:00.000Z	36 \| good	4.56 \| good	20.087 \| good	39.278 \| good	0.544 \| good	2.84 \| good	0.113 \| good
2026-07-23T00:00:00.000Z	35 \| good	4.924 \| good	21.661 \| good	38.175 \| good	0.844 \| good	2.706 \| good	0.144 \| good
2026-07-23T01:00:00.000Z	38 \| good	7.284 \| good	32.46 \| good	38.607 \| good	1.449 \| good	4.503 \| good	0.144 \| good
2026-07-23T02:00:00.000Z	49 \| good	8.81 \| good	39.451 \| good	36.106 \| good	1.132 \| good	4.307 \| good	0.159 \| good
2026-07-23T03:00:00.000Z	54 \| moderate	10.77 \| good	47.534 \| good	16.732 \| good	0.873 \| good	7.439 \| good	0.135 \| good
2026-07-23T04:00:00.000Z	33 \| good	6.298 \| good	27.911 \| good	28.928 \| good	0.585 \| good	9.31 \| good	0.204 \| good
2026-07-23T05:00:00.000Z	33 \| good	6.297 \| good	27.915 \| good	32.714 \| good	0.63 \| good	9.612 \| good	0.202 \| good
2026-07-23T06:00:00.000Z	38 \| good	6.542 \| good	29.513 \| good	22.995 \| good	0.848 \| good	8.425 \| good	0.159 \| good
2026-07-23T07:00:00.000Z	38 \| good	6.665 \| good	30.157 \| good	13.102 \| good	0.833 \| good	12.6 \| good	0.159 \| good
2026-07-23T08:00:00.000Z	38 \| good	6.921 \| good	30.846 \| good	9.856 \| good	0.923 \| good	14.045 \| good	0.159 \| good
2026-07-23T09:00:00.000Z	38 \| good	6.744 \| good	30.331 \| good	7.48 \| good	1.02 \| good	12.403 \| good	0.159 \| good
2026-07-23T10:00:00.000Z	38 \| good	6.519 \| good	29.278 \| good	6.666 \| good	1.146 \| good	13.198 \| good	0.189 \| good
2026-07-23T11:00:00.000Z	38 \| good	6.557 \| good	29.379 \| good	5.759 \| good	1.298 \| good	11.748 \| good	0.202 \| good
2026-07-23T12:00:00.000Z	38 \| good	7.012 \| good	31.292 \| good	5.282 \| good	1.455 \| good	13.897 \| good	0.259 \| good
2026-07-23T13:00:00.000Z	38 \| good	7.053 \| good	31.722 \| good	14.728 \| good	1.753 \| good	15.767 \| good	0.259 \| good
2026-07-23T14:00:00.000Z	38 \| good	6.688 \| good	30.262 \| good	11.487 \| good	2.486 \| good	13.241 \| good	0.275 \| good
2026-07-23T15:00:00.000Z	33 \| good	5.895 \| good	26.774 \| good	26.217 \| good	3.1 \| good	11.246 \| good	0.245 \| good
2026-07-23T16:00:00.000Z	33 \| good	5.77 \| good	24.942 \| good	30.225 \| good	3.221 \| good	5.215 \| good	0.15 \| good
2026-07-23T17:00:00.000Z	33 \| good	5.609 \| good	24.048 \| good	30.992 \| good	2.471 \| good	3.889 \| good	0.126 \| good
2026-07-23T18:00:00.000Z	33 \| good	5.691 \| good	24.91 \| good	35.657 \| good	2.277 \| good	6.706 \| good	0.175 \| good
2026-07-23T19:00:00.000Z	33 \| good	5.97 \| good	26.743 \| good	36.481 \| good	1.967 \| good	6.418 \| good	0.143 \| good
2026-07-23T20:00:00.000Z	39 \| good	6.264 \| good	27.756 \| good	41.717 \| good	1.538 \| good	4.851 \| good	0.143 \| good
2026-07-23T21:00:00.000Z	41 \| good	6.275 \| good	27.794 \| good	44.412 \| good	1.906 \| good	4.709 \| good	0.143 \| good
2026-07-23T22:00:00.000Z	41 \| good	6.275 \| good	27.794 \| good	44.412 \| good	1.906 \| good	4.709 \| good	0.143 \| good
2026-07-23T23:00:00.000Z	44 \| good	4.848 \| good	20.944 \| good	47.558 \| good	1.376 \| good	2.625 \| good	0.118 \| good
2026-07-24T00:00:00.000Z	37 \| good	5.955 \| good	26.71 \| good	39.938 \| good	1.402 \| good	3.385 \| good	0.122 \| good
2026-07-24T01:00:00.000Z	49 \| good	9.49 \| good	42.262 \| good	37.046 \| good	1.373 \| good	6.851 \| good	0.142 \| good
2026-07-24T02:00:00.000Z	58 \| moderate	13.213 \| fine	59.178 \| fine	31.377 \| good	1.345 \| good	13.166 \| good	0.174 \| good
2026-07-24T03:00:00.000Z	62 \| moderate	15.379 \| fine	68.829 \| fine	27.481 \| good	1.343 \| good	18.162 \| good	0.197 \| good
2026-07-24T04:00:00.000Z	56 \| moderate	11.613 \| good	51.302 \| good	24.58 \| good	1.396 \| good	22.142 \| good	0.219 \| good
2026-07-24T05:00:00.000Z	49 \| good	9.415 \| good	42.14 \| good	19.319 \| good	1.459 \| good	23.57 \| good	0.243 \| good
2026-07-24T06:00:00.000Z	33 \| good	5.863 \| good	25.492 \| good	14.064 \| good	1.486 \| good	23.837 \| good	0.258 \| good
2026-07-24T07:00:00.000Z	27 \| good	4.866 \| good	21.222 \| good	13.987 \| good	1.523 \| good	23.75 \| good	0.265 \| good
2026-07-24T08:00:00.000Z	23 \| good	2.797 \| good	11.464 \| good	12.947 \| good	1.524 \| good	23.558 \| good	0.27 \| good
2026-07-24T09:00:00.000Z	22 \| good	0.734 \| good	2.439 \| good	10.105 \| good	1.517 \| good	23.157 \| good	0.265 \| good
2026-07-24T10:00:00.000Z	22 \| good	0.68 \| good	2.254 \| good	3.657 \| good	1.527 \| good	23.015 \| good	0.254 \| good
2026-07-24T11:00:00.000Z	20 \| good	0.388 \| good	1.256 \| good	2.604 \| good	1.551 \| good	21.142 \| good	0.251 \| good
2026-07-24T12:00:00.000Z	16 \| good	1.202 \| good	5.194 \| good	4.144 \| good	1.556 \| good	17.483 \| good	0.244 \| good
2026-07-24T13:00:00.000Z	13 \| good	0.999 \| good	4.096 \| good	13.835 \| good	1.756 \| good	13.65 \| good	0.198 \| good
2026-07-24T14:00:00.000Z	25 \| good	0.836 \| good	3.227 \| good	27.201 \| good	1.905 \| good	9.958 \| good	0.174 \| good
2026-07-24T15:00:00.000Z	33 \| good	0.626 \| good	2.324 \| good	35.653 \| good	1.833 \| good	7.075 \| good	0.163 \| good
2026-07-24T16:00:00.000Z	39 \| good	0.778 \| good	3.229 \| good	41.5 \| good	1.528 \| good	4.263 \| good	0.153 \| good
2026-07-24T17:00:00.000Z	40 \| good	1.405 \| good	5.647 \| good	43.03 \| good	1.158 \| good	2.229 \| good	0.144 \| good
2026-07-24T18:00:00.000Z	43 \| good	1.371 \| good	5.611 \| good	45.947 \| good	0.889 \| good	1.289 \| good	0.14 \| good
2026-07-24T19:00:00.000Z	44 \| good	1.402 \| good	5.816 \| good	48.045 \| good	0.781 \| good	1.031 \| good	0.14 \| good
2026-07-24T20:00:00.000Z	46 \| good	1.339 \| good	4.979 \| good	50.154 \| good	0.716 \| good	1.001 \| good	0.143 \| good
2026-07-24T21:00:00.000Z	50 \| good	1.323 \| good	4.999 \| good	54.338 \| good	0.659 \| good	1.058 \| good	0.145 \| good
2026-07-24T22:00:00.000Z	50 \| good	1.787 \| good	7.059 \| good	53.706 \| good	0.592 \| good	1.175 \| good	0.148 \| good
2026-07-24T23:00:00.000Z	46 \| good	1.828 \| good	7.894 \| good	50.322 \| good	0.553 \| good	1.474 \| good	0.152 \| good
2026-07-25T00:00:00.000Z	41 \| good	1.982 \| good	7.981 \| good	43.713 \| good	0.53 \| good	2.138 \| good	0.157 \| good
2026-07-25T01:00:00.000Z	32 \| good	2.133 \| good	8.851 \| good	34.501 \| good	0.518 \| good	3.721 \| good	0.164 \| good
2026-07-25T02:00:00.000Z	31 \| good	2.158 \| good	8.912 \| good	32.783 \| good	0.534 \| good	6.113 \| good	0.174 \| good
2026-07-25T03:00:00.000Z	28 \| good	2.204 \| good	9.019 \| good	30.398 \| good	0.549 \| good	7.175 \| good	0.179 \| good
2026-07-25T04:00:00.000Z	26 \| good	2.758 \| good	11.702 \| good	27.928 \| good	0.572 \| good	7.61 \| good	0.182 \| good
2026-07-25T05:00:00.000Z	24 \| good	1.013 \| good	4.308 \| good	25.565 \| good	0.599 \| good	7.651 \| good	0.185 \| good
2026-07-25T06:00:00.000Z	21 \| good	2.534 \| good	9.902 \| good	22.898 \| good	0.616 \| good	7.621 \| good	0.188 \| good
2026-07-25T07:00:00.000Z	19 \| good	0.717 \| good	2.405 \| good	21.417 \| good	0.636 \| good	8.656 \| good	0.193 \| good
2026-07-25T08:00:00.000Z	16 \| good	0.73 \| good	2.444 \| good	16.99 \| good	0.668 \| good	10.367 \| good	0.201 \| good
2026-07-25T09:00:00.000Z	16 \| good	1.018 \| good	4.227 \| good	16.567 \| good	0.698 \| good	12.045 \| good	0.209 \| good
2026-07-25T10:00:00.000Z	11 \| good	1.016 \| good	4.227 \| good	11.678 \| good	0.728 \| good	12.477 \| good	0.212 \| good
2026-07-25T11:00:00.000Z	11 \| good	0.008 \| good	0 \| good	10.407 \| good	0.757 \| good	12.089 \| good	0.213 \| good
2026-07-25T12:00:00.000Z	11 \| good	0.066 \| good	0.191 \| good	11.604 \| good	0.766 \| good	11.432 \| good	0.214 \| good
2026-07-25T13:00:00.000Z	10 \| good	0.515 \| good	2.064 \| good	10.923 \| good	0.861 \| good	9.375 \| good	0.206 \| good
2026-07-25T14:00:00.000Z	15 \| good	2.29 \| good	9.17 \| good	16.372 \| good	0.92 \| good	7.309 \| good	0.199 \| good
2026-07-25T15:00:00.000Z	44 \| good	8.356 \| good	37.022 \| good	24.324 \| good	0.985 \| good	5.35 \| good	0.193 \| good
2026-07-25T16:00:00.000Z	38 \| good	6.657 \| good	29.954 \| good	34.032 \| good	1.014 \| good	3.806 \| good	0.19 \| good
2026-07-25T17:00:00.000Z	31 \| good	4.759 \| good	20.84 \| good	34.397 \| good	1.055 \| good	2.386 \| good	0.188 \| good
2026-07-25T18:00:00.000Z	29 \| good	4.38 \| good	18.987 \| good	31.045 \| good	1.054 \| good	1.387 \| good	0.188 \| good
2026-07-25T19:00:00.000Z	30 \| good	4.14 \| good	17.98 \| good	31.632 \| good	0.937 \| good	1.202 \| good	0.188 \| good
2026-07-25T20:00:00.000Z	29 \| good	4.823 \| good	20.847 \| good	31.355 \| good	0.87 \| good	1.345 \| good	0.19 \| good
2026-07-25T21:00:00.000Z	30 \| good	2.816 \| good	11.891 \| good	32.136 \| good	0.83 \| good	1.508 \| good	0.191 \| good
2026-07-25T22:00:00.000Z	31 \| good	0.885 \| good	3.222 \| good	32.714 \| good	0.813 \| good	1.767 \| good	0.194 \| good

Real-time air quality index in Naperville, Illinois today

Common air pollutants in Naperville, Illinois

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Naperville, Illinois air quality forecast and history

Empower business decisions with accurate air quality data

Naperville, Illinois air quality map: Real-time AQI near you

Air quality in nearby cities

Warrenville, Illinois

Woodridge, Illinois

Lisle, Illinois

Bolingbrook, Illinois

Winfield, Illinois

Romeoville, Illinois

How accurate is Illinois, USA air quality data?

Air quality levels in US

Frequently asked questions

How frequently is the air quality data for Naperville, Illinois updated?

When did Naperville, Illinois experience the worst air quality in the last 24 hours?

When did Naperville, Illinois have its best air quality in the last 24 hours?

What is the real-time air quality index for Naperville, Illinois?

Which pollutant is found most often in Naperville, Illinois?

What can I do if the air quality in Naperville, Illinois is poor?

What are the current PM2.5 levels in Naperville, Illinois?

What are the current PM10 levels at Naperville, Illinois?

What are the current carbon monoxide (CO) levels at Naperville, Illinois?

What are the current sulfur dioxide (SO2) levels at Naperville, Illinois?

What are the current ozone (O3) levels at Naperville, Illinois?

What are the current nitrogen dioxide (NO2) levels at Naperville, Illinois?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What are the current PM_2.5 levels in Naperville, Illinois?

What are the current PM₁₀ levels at Naperville, Illinois?

What are the current sulfur dioxide (SO₂) levels at Naperville, Illinois?

What are the current ozone (O₃) levels at Naperville, Illinois?

What are the current nitrogen dioxide (NO₂) levels at Naperville, Illinois?