What is the current concentration of PM10 in Lemont, Illinois?

The current PM10 concentration at Lemont, Illinois is 23.078 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Lemont, Illinois?

The current sulfur dioxide (SO2) concentration at Lemont, Illinois is 0.413 ppb.

What is the current concentration of ozone (O3) in Lemont, Illinois?

The current ozone (O3) concentration at Lemont, Illinois is 28 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Lemont, Illinois?

The current nitrogen dioxide (NO2) concentration at Lemont, Illinois is 5.491 ppb.

Lemont, Illinois live air quality index now

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

Stay updated with real-time air quality in Lemont, 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

Lemont, Illinois

Last updated: ... (Local time)

Major air pollutants in Lemont, Illinois

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

16.26 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

72.01 μg/m³

155

255

425

605+

Ozone (O₃)

27.29 ppb

201

201+

Sulfur Dioxide (SO₂)

1.84 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

11.17 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.32 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Lemont, Illinois

Get Live Pollen Counts

Lemont, Illinois

Scroll To Air Quality Map

Track live Lemont, Illinois air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-20T05:00:00.000Z	38 \| good	4.079 \| good	17.327 \| good	41 \| good	0.365 \| good	7.24 \| good	0.352 \| good
2025-07-20T06:00:00.000Z	34 \| good	3.674 \| good	16.612 \| good	37 \| good	0.424 \| good	7.106 \| good	0.313 \| good
2025-07-20T07:00:00.000Z	33 \| good	4.054 \| good	17.967 \| good	36 \| good	0.298 \| good	4.804 \| good	0.293 \| good
2025-07-20T08:00:00.000Z	33 \| good	3.93 \| good	15.002 \| good	36 \| good	0.292 \| good	5.004 \| good	0.268 \| good
2025-07-20T09:00:00.000Z	31 \| good	3.728 \| good	19.752 \| good	34 \| good	0.328 \| good	6.859 \| good	0.254 \| good
2025-07-20T10:00:00.000Z	27 \| good	4.57 \| good	21.278 \| good	29 \| good	0.401 \| good	9.294 \| good	0.239 \| good
2025-07-20T11:00:00.000Z	33 \| good	5.599 \| good	23.078 \| good	28 \| good	0.413 \| good	5.491 \| good	0.186 \| good
2025-07-20T12:00:00.000Z	29 \| good	4.253 \| good	20.477 \| good	31 \| good	0.346 \| good	0.942 \| good	0.186 \| good
2025-07-20T13:00:00.000Z	31 \| good	4.783 \| good	18.106 \| good	34 \| good	0.325 \| good	1.505 \| good	0.186 \| good
2025-07-20T14:00:00.000Z	29 \| good	4.756 \| good	16.929 \| good	31 \| good	0.241 \| good	2.463 \| good	0.252 \| good
2025-07-20T15:00:00.000Z	31 \| good	4.616 \| good	18.447 \| good	33 \| good	0.45 \| good	2.246 \| good	0.221 \| good
2025-07-20T16:00:00.000Z	31 \| good	4.036 \| good	16.01 \| good	34 \| good	0.427 \| good	2.633 \| good	0.221 \| good
2025-07-20T17:00:00.000Z	28 \| good	3.913 \| good	20.105 \| good	30 \| good	0.479 \| good	3.871 \| good	0.221 \| good
2025-07-20T18:00:00.000Z	27 \| good	4.65 \| good	20.326 \| good	26 \| good	0.507 \| good	1.708 \| good	0.236 \| good
2025-07-20T19:00:00.000Z	30 \| good	5.312 \| good	25.455 \| good	32 \| good	0.505 \| good	1.699 \| good	0.236 \| good
2025-07-20T20:00:00.000Z	33 \| good	5.829 \| good	22.012 \| good	35 \| good	0.516 \| good	1.577 \| good	0.206 \| good
2025-07-20T21:00:00.000Z	44 \| good	7.624 \| good	19.098 \| good	37 \| good	0.547 \| good	1.402 \| good	0.206 \| good
2025-07-20T22:00:00.000Z	38 \| good	6.625 \| good	27.736 \| good	36 \| good	0.453 \| good	2.759 \| good	0.234 \| good
2025-07-20T23:00:00.000Z	34 \| good	6.298 \| good	37.19 \| good	37 \| good	0.404 \| good	3.62 \| good	0.268 \| good
2025-07-21T00:00:00.000Z	32 \| good	4.945 \| good	22.639 \| good	35 \| good	0.403 \| good	3.614 \| good	0.307 \| good
2025-07-21T01:00:00.000Z	33 \| good	5.662 \| good	26.452 \| good	34 \| good	0.432 \| good	3.887 \| good	0.307 \| good
2025-07-21T02:00:00.000Z	29 \| good	5.353 \| good	22.539 \| good	31 \| good	0.495 \| good	5.182 \| good	0.307 \| good
2025-07-21T03:00:00.000Z	33 \| good	5.523 \| good	18.981 \| good	34 \| good	0.441 \| good	4.51 \| good	0.307 \| good
2025-07-21T04:00:00.000Z	33 \| good	6.117 \| good	23.23 \| good	34 \| good	0.329 \| good	4.634 \| good	0.25 \| good
2025-07-21T05:00:00.000Z	56 \| moderate	11.938 \| good	30.599 \| good	31 \| good	0.416 \| good	1.602 \| good	0.264 \| good
2025-07-21T06:00:00.000Z	67 \| moderate	18.467 \| fine	74.744 \| fine	25 \| good	0.481 \| good	3.3 \| good	0.245 \| good
2025-07-21T07:00:00.000Z	119 \| sensitive	39.034 \| moderate	191.135 \| moderate	23 \| good	0.602 \| good	1.669 \| good	0.23 \| good
2025-07-21T08:00:00.000Z	93 \| moderate	29.936 \| fine	139.208 \| fine	24 \| good	0.412 \| good	3.061 \| good	0.202 \| good
2025-07-21T09:00:00.000Z	86 \| moderate	28.083 \| fine	108.465 \| fine	17 \| good	0.367 \| good	3.981 \| good	0.211 \| good
2025-07-21T10:00:00.000Z	124 \| sensitive	44.596 \| moderate	191.049 \| moderate	20 \| good	0.43 \| good	4.498 \| good	0.211 \| good
2025-07-21T11:00:00.000Z	122 \| sensitive	43.522 \| moderate	158.893 \| moderate	18 \| good	0.721 \| good	4.606 \| good	0.177 \| good
2025-07-21T12:00:00.000Z	92 \| moderate	31.001 \| fine	96.055 \| fine	15 \| good	1.003 \| good	6.207 \| good	0.177 \| good
2025-07-21T13:00:00.000Z	68 \| moderate	16.793 \| fine	88.815 \| fine	14 \| good	1.057 \| good	7.175 \| good	0.177 \| good
2025-07-21T14:00:00.000Z	54 \| moderate	10.967 \| good	48.451 \| good	16 \| good	0.851 \| good	4.479 \| good	0.158 \| good
2025-07-21T15:00:00.000Z	56 \| moderate	12.072 \| good	30.99 \| good	19 \| good	2.786 \| good	3.779 \| good	0.158 \| good
2025-07-21T16:00:00.000Z	60 \| moderate	13.973 \| fine	42.796 \| good	24 \| good	2.846 \| good	2.196 \| good	0.143 \| good
2025-07-21T17:00:00.000Z	54 \| moderate	11.151 \| good	58.807 \| fine	29 \| good	1.293 \| good	1.602 \| good	0.115 \| good
2025-07-21T18:00:00.000Z	52 \| moderate	9.679 \| good	50.481 \| good	37 \| good	1.125 \| good	1.741 \| good	0.167 \| good
2025-07-21T19:00:00.000Z	58 \| moderate	13.346 \| fine	57.36 \| fine	45 \| good	1.49 \| good	1.821 \| good	0.185 \| good
2025-07-21T20:00:00.000Z	64 \| moderate	16.264 \| fine	73.412 \| fine	55 \| fine	0.947 \| good	1.385 \| good	0.173 \| good
2025-07-21T21:00:00.000Z	69 \| moderate	18.973 \| fine	63.864 \| fine	60 \| fine	2.154 \| good	1.426 \| good	0.18 \| good
2025-07-21T22:00:00.000Z	101 \| sensitive	27.153 \| fine	115.516 \| fine	71 \| moderate	2.239 \| good	1.622 \| good	0.217 \| good
2025-07-21T23:00:00.000Z	112 \| sensitive	22.758 \| fine	88.733 \| fine	74 \| moderate	1.275 \| good	2.502 \| good	0.227 \| good
2025-07-22T00:00:00.000Z	100 \| moderate	27.578 \| fine	99.743 \| fine	70 \| fine	1.206 \| good	3.461 \| good	0.261 \| good
2025-07-22T01:00:00.000Z	81 \| moderate	25.251 \| fine	89.706 \| fine	63 \| fine	1.725 \| good	3.549 \| good	0.29 \| good
2025-07-22T02:00:00.000Z	73 \| moderate	20.511 \| fine	97.792 \| fine	60 \| fine	1.488 \| good	9.472 \| good	0.256 \| good
2025-07-22T03:00:00.000Z	64 \| moderate	16.264 \| fine	72.012 \| fine	27.292 \| good	1.839 \| good	11.174 \| good	0.317 \| good
2025-07-22T04:00:00.000Z	81 \| moderate	25.45 \| fine	96.1 \| fine	46 \| good	0.439 \| good	7.61 \| good	0.211 \| good
2025-07-22T04:00:00.000Z	64 \| moderate	16.264 \| fine	72.012 \| fine	27.292 \| good	1.839 \| good	11.174 \| good	0.317 \| good
2025-07-20T13:00:00.000Z	52 \| moderate	9.573 \| good	42.827 \| good	22.003 \| good	1.567 \| good	8.204 \| good	0.203 \| good
2025-07-20T14:00:00.000Z	52 \| moderate	9.542 \| good	42.737 \| good	23.177 \| good	1.811 \| good	8.491 \| good	0.209 \| good
2025-07-20T15:00:00.000Z	49 \| good	9.183 \| good	40.781 \| good	24.675 \| good	2.055 \| good	8.779 \| good	0.215 \| good
2025-07-20T16:00:00.000Z	38 \| good	7.252 \| good	31.829 \| good	26.834 \| good	1.97 \| good	7.506 \| good	0.209 \| good
2025-07-20T17:00:00.000Z	33 \| good	6.418 \| good	28.39 \| good	27.222 \| good	1.885 \| good	6.233 \| good	0.202 \| good
2025-07-20T18:00:00.000Z	38 \| good	6.585 \| good	29.24 \| good	33.339 \| good	1.8 \| good	4.961 \| good	0.196 \| good
2025-07-20T19:00:00.000Z	38 \| good	6.961 \| good	30.797 \| good	26.556 \| good	1.601 \| good	4.546 \| good	0.189 \| good
2025-07-20T20:00:00.000Z	38 \| good	6.779 \| good	30.202 \| good	24.158 \| good	1.403 \| good	4.131 \| good	0.181 \| good
2025-07-20T21:00:00.000Z	33 \| good	6.289 \| good	28.19 \| good	26.947 \| good	1.205 \| good	3.716 \| good	0.174 \| good
2025-07-20T22:00:00.000Z	38 \| good	7.274 \| good	31.917 \| good	32.659 \| good	1.353 \| good	4.247 \| good	0.171 \| good
2025-07-20T23:00:00.000Z	38 \| good	6.672 \| good	29.65 \| good	36.103 \| good	1.501 \| good	4.779 \| good	0.168 \| good
2025-07-21T00:00:00.000Z	38 \| good	6.567 \| good	29.477 \| good	35.27 \| good	1.649 \| good	5.31 \| good	0.165 \| good
2025-07-21T01:00:00.000Z	44 \| good	8.387 \| good	36.784 \| good	36.932 \| good	1.681 \| good	6.243 \| good	0.166 \| good
2025-07-21T02:00:00.000Z	49 \| good	8.632 \| good	37.985 \| good	36.495 \| good	1.714 \| good	7.176 \| good	0.167 \| good
2025-07-21T03:00:00.000Z	49 \| good	8.891 \| good	38.914 \| good	37.69 \| good	1.747 \| good	8.109 \| good	0.168 \| good
2025-07-21T04:00:00.000Z	49 \| good	8.512 \| good	37.492 \| good	33.513 \| good	1.641 \| good	7.821 \| good	0.182 \| good
2025-07-21T05:00:00.000Z	44 \| good	8.228 \| good	36.278 \| good	31.933 \| good	1.535 \| good	7.532 \| good	0.196 \| good
2025-07-21T06:00:00.000Z	44 \| good	7.79 \| good	34.15 \| good	28.959 \| good	1.43 \| good	7.244 \| good	0.21 \| good
2025-07-21T07:00:00.000Z	38 \| good	7.014 \| good	30.808 \| good	25.731 \| good	1.399 \| good	6.656 \| good	0.217 \| good
2025-07-21T08:00:00.000Z	38 \| good	6.959 \| good	31.039 \| good	22.631 \| good	1.368 \| good	6.069 \| good	0.223 \| good
2025-07-21T09:00:00.000Z	44 \| good	8.352 \| good	36.566 \| good	19.81 \| good	1.336 \| good	5.481 \| good	0.229 \| good
2025-07-21T10:00:00.000Z	52 \| moderate	9.575 \| good	42.538 \| good	16.307 \| good	1.326 \| good	5.424 \| good	0.232 \| good
2025-07-21T11:00:00.000Z	49 \| good	8.538 \| good	37.44 \| good	14.487 \| good	1.315 \| good	5.367 \| good	0.234 \| good
2025-07-21T12:00:00.000Z	44 \| good	8.399 \| good	36.984 \| good	19.111 \| good	1.304 \| good	5.31 \| good	0.236 \| good
2025-07-21T13:00:00.000Z	49 \| good	9.068 \| good	40.079 \| good	24.075 \| good	1.491 \| good	5.124 \| good	0.235 \| good
2025-07-21T14:00:00.000Z	52 \| moderate	9.557 \| good	42.587 \| good	29.451 \| good	1.677 \| good	4.938 \| good	0.234 \| good
2025-07-21T15:00:00.000Z	52 \| moderate	9.942 \| good	43.918 \| good	40.965 \| good	1.863 \| good	4.752 \| good	0.232 \| good
2025-07-21T16:00:00.000Z	52 \| moderate	9.864 \| good	44.031 \| good	50.554 \| good	1.777 \| good	3.775 \| good	0.218 \| good
2025-07-21T17:00:00.000Z	49 \| good	9.094 \| good	39.983 \| good	50.45 \| good	1.69 \| good	2.797 \| good	0.204 \| good
2025-07-21T18:00:00.000Z	49 \| good	8.571 \| good	38.053 \| good	49.211 \| good	1.604 \| good	1.819 \| good	0.189 \| good
2025-07-21T19:00:00.000Z	49 \| good	8.934 \| good	39.735 \| good	45.574 \| good	1.591 \| good	1.823 \| good	0.188 \| good
2025-07-21T20:00:00.000Z	49 \| good	9.424 \| good	41.625 \| good	47.463 \| good	1.577 \| good	1.826 \| good	0.188 \| good
2025-07-21T21:00:00.000Z	52 \| moderate	10.018 \| good	44.762 \| good	49.042 \| good	1.563 \| good	1.83 \| good	0.187 \| good
2025-07-21T22:00:00.000Z	58 \| moderate	13.325 \| fine	59.954 \| fine	47.422 \| good	1.577 \| good	2.78 \| good	0.193 \| good
2025-07-21T23:00:00.000Z	66 \| moderate	17.49 \| fine	77.468 \| fine	44.772 \| good	1.59 \| good	3.73 \| good	0.2 \| good
2025-07-22T00:00:00.000Z	77 \| moderate	22.65 \| fine	98.999 \| fine	34.555 \| good	1.603 \| good	4.68 \| good	0.206 \| good
2025-07-22T01:00:00.000Z	77 \| moderate	23.022 \| fine	100.575 \| fine	34.032 \| good	1.588 \| good	6.16 \| good	0.218 \| good
2025-07-22T02:00:00.000Z	81 \| moderate	24.988 \| fine	108.537 \| fine	29.88 \| good	1.572 \| good	7.641 \| good	0.229 \| good
2025-07-22T03:00:00.000Z	82 \| moderate	26.347 \| fine	114.054 \| fine	28.822 \| good	1.556 \| good	9.122 \| good	0.241 \| good
2025-07-22T04:00:00.000Z	81 \| moderate	25.466 \| fine	110.578 \| fine	25.84 \| good	1.563 \| good	9.588 \| good	0.246 \| good
2025-07-22T05:00:00.000Z	79 \| moderate	24.343 \| fine	106.56 \| fine	24.172 \| good	1.57 \| good	10.054 \| good	0.251 \| good
2025-07-22T06:00:00.000Z	62 \| moderate	14.644 \| fine	14.742 \| good	36.557 \| good	1.579 \| good	10.548 \| good	0.256 \| good
2025-07-22T07:00:00.000Z	79 \| moderate	23.599 \| fine	103.488 \| fine	17.437 \| good	1.708 \| good	10.443 \| good	0.255 \| good
2025-07-22T08:00:00.000Z	77 \| moderate	22.619 \| fine	99.41 \| fine	18.956 \| good	1.84 \| good	10.366 \| good	0.255 \| good
2025-07-22T09:00:00.000Z	75 \| moderate	22.257 \| fine	97.747 \| fine	17.825 \| good	1.972 \| good	10.289 \| good	0.255 \| good
2025-07-22T10:00:00.000Z	84 \| moderate	26.788 \| fine	116.765 \| fine	15.888 \| good	2.003 \| good	9.918 \| good	0.257 \| good
2025-07-22T11:00:00.000Z	79 \| moderate	23.687 \| fine	103.828 \| fine	10.749 \| good	2.034 \| good	9.547 \| good	0.259 \| good
2025-07-22T12:00:00.000Z	38 \| good	6.684 \| good	6.767 \| good	23.108 \| good	2.067 \| good	9.176 \| good	0.26 \| good

Lemont

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Lemont, Illinois air quality map: Track AQI near you

0.17ppm

How accurate is Illinois, USA air quality data?

Air quality data and pollutant measurements for Illinois, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.

Source: Ambee Data Sources

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Frequently asked questions

How often is the air quality data for Lemont, Illinois updated?

The air quality for Lemont, Illinois is updated every hour.

When was the worst air quality at Lemont, Illinois in the last 24 hrs?

The worst air quality in Lemont, Illinois in the last 24 hours was observed at 11:00:00 on 2025-07-19.

When was the best air quality at Lemont, Illinois in the last 24 hrs?

In the last 24 hrs, the best air quality in Lemont, Illinois was observed at 10:00:00 on 2025-07-20.

What is the current air quality in Lemont, Illinois?

The current air quality in Lemont, Illinois is 33, categorized as Good based on real-time data.

What pollutant is the most common in Lemont, Illinois?

The most common pollutant in Lemont, Illinois is PM2.5.

What should I do if the air quality in Lemont, Illinois is poor?

If the air quality in Lemont, Illinois is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Lemont, Illinois?

The current PM_2.5 concentration at Lemont, Illinois is 5.599 μg/m³.

What is the current concentration of PM₁₀ in Lemont, Illinois?

The current PM₁₀ concentration at Lemont, Illinois is 23.078 μg/m³.

What is the current concentration of carbon monoxide (CO) in Lemont, Illinois?

The current carbon monoxide (CO) concentration at Lemont, Illinois is 0.186 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Lemont, Illinois?

The current sulfur dioxide (SO₂) concentration at Lemont, Illinois is 0.413 ppb.

What is the current concentration of ozone (O₃) in Lemont, Illinois?

The current ozone (O₃) concentration at Lemont, Illinois is 28 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Lemont, Illinois?

The current nitrogen dioxide (NO₂) concentration at Lemont, Illinois is 5.491 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-20T05:00:00.000Z	38 \| good	4.079 \| good	17.327 \| good	41 \| good	0.365 \| good	7.24 \| good	0.352 \| good
2025-07-20T06:00:00.000Z	34 \| good	3.674 \| good	16.612 \| good	37 \| good	0.424 \| good	7.106 \| good	0.313 \| good
2025-07-20T07:00:00.000Z	33 \| good	4.054 \| good	17.967 \| good	36 \| good	0.298 \| good	4.804 \| good	0.293 \| good
2025-07-20T08:00:00.000Z	33 \| good	3.93 \| good	15.002 \| good	36 \| good	0.292 \| good	5.004 \| good	0.268 \| good
2025-07-20T09:00:00.000Z	31 \| good	3.728 \| good	19.752 \| good	34 \| good	0.328 \| good	6.859 \| good	0.254 \| good
2025-07-20T10:00:00.000Z	27 \| good	4.57 \| good	21.278 \| good	29 \| good	0.401 \| good	9.294 \| good	0.239 \| good
2025-07-20T11:00:00.000Z	33 \| good	5.599 \| good	23.078 \| good	28 \| good	0.413 \| good	5.491 \| good	0.186 \| good
2025-07-20T12:00:00.000Z	29 \| good	4.253 \| good	20.477 \| good	31 \| good	0.346 \| good	0.942 \| good	0.186 \| good
2025-07-20T13:00:00.000Z	31 \| good	4.783 \| good	18.106 \| good	34 \| good	0.325 \| good	1.505 \| good	0.186 \| good
2025-07-20T14:00:00.000Z	29 \| good	4.756 \| good	16.929 \| good	31 \| good	0.241 \| good	2.463 \| good	0.252 \| good
2025-07-20T15:00:00.000Z	31 \| good	4.616 \| good	18.447 \| good	33 \| good	0.45 \| good	2.246 \| good	0.221 \| good
2025-07-20T16:00:00.000Z	31 \| good	4.036 \| good	16.01 \| good	34 \| good	0.427 \| good	2.633 \| good	0.221 \| good
2025-07-20T17:00:00.000Z	28 \| good	3.913 \| good	20.105 \| good	30 \| good	0.479 \| good	3.871 \| good	0.221 \| good
2025-07-20T18:00:00.000Z	27 \| good	4.65 \| good	20.326 \| good	26 \| good	0.507 \| good	1.708 \| good	0.236 \| good
2025-07-20T19:00:00.000Z	30 \| good	5.312 \| good	25.455 \| good	32 \| good	0.505 \| good	1.699 \| good	0.236 \| good
2025-07-20T20:00:00.000Z	33 \| good	5.829 \| good	22.012 \| good	35 \| good	0.516 \| good	1.577 \| good	0.206 \| good
2025-07-20T21:00:00.000Z	44 \| good	7.624 \| good	19.098 \| good	37 \| good	0.547 \| good	1.402 \| good	0.206 \| good
2025-07-20T22:00:00.000Z	38 \| good	6.625 \| good	27.736 \| good	36 \| good	0.453 \| good	2.759 \| good	0.234 \| good
2025-07-20T23:00:00.000Z	34 \| good	6.298 \| good	37.19 \| good	37 \| good	0.404 \| good	3.62 \| good	0.268 \| good
2025-07-21T00:00:00.000Z	32 \| good	4.945 \| good	22.639 \| good	35 \| good	0.403 \| good	3.614 \| good	0.307 \| good
2025-07-21T01:00:00.000Z	33 \| good	5.662 \| good	26.452 \| good	34 \| good	0.432 \| good	3.887 \| good	0.307 \| good
2025-07-21T02:00:00.000Z	29 \| good	5.353 \| good	22.539 \| good	31 \| good	0.495 \| good	5.182 \| good	0.307 \| good
2025-07-21T03:00:00.000Z	33 \| good	5.523 \| good	18.981 \| good	34 \| good	0.441 \| good	4.51 \| good	0.307 \| good
2025-07-21T04:00:00.000Z	33 \| good	6.117 \| good	23.23 \| good	34 \| good	0.329 \| good	4.634 \| good	0.25 \| good
2025-07-21T05:00:00.000Z	56 \| moderate	11.938 \| good	30.599 \| good	31 \| good	0.416 \| good	1.602 \| good	0.264 \| good
2025-07-21T06:00:00.000Z	67 \| moderate	18.467 \| fine	74.744 \| fine	25 \| good	0.481 \| good	3.3 \| good	0.245 \| good
2025-07-21T07:00:00.000Z	119 \| sensitive	39.034 \| moderate	191.135 \| moderate	23 \| good	0.602 \| good	1.669 \| good	0.23 \| good
2025-07-21T08:00:00.000Z	93 \| moderate	29.936 \| fine	139.208 \| fine	24 \| good	0.412 \| good	3.061 \| good	0.202 \| good
2025-07-21T09:00:00.000Z	86 \| moderate	28.083 \| fine	108.465 \| fine	17 \| good	0.367 \| good	3.981 \| good	0.211 \| good
2025-07-21T10:00:00.000Z	124 \| sensitive	44.596 \| moderate	191.049 \| moderate	20 \| good	0.43 \| good	4.498 \| good	0.211 \| good
2025-07-21T11:00:00.000Z	122 \| sensitive	43.522 \| moderate	158.893 \| moderate	18 \| good	0.721 \| good	4.606 \| good	0.177 \| good
2025-07-21T12:00:00.000Z	92 \| moderate	31.001 \| fine	96.055 \| fine	15 \| good	1.003 \| good	6.207 \| good	0.177 \| good
2025-07-21T13:00:00.000Z	68 \| moderate	16.793 \| fine	88.815 \| fine	14 \| good	1.057 \| good	7.175 \| good	0.177 \| good
2025-07-21T14:00:00.000Z	54 \| moderate	10.967 \| good	48.451 \| good	16 \| good	0.851 \| good	4.479 \| good	0.158 \| good
2025-07-21T15:00:00.000Z	56 \| moderate	12.072 \| good	30.99 \| good	19 \| good	2.786 \| good	3.779 \| good	0.158 \| good
2025-07-21T16:00:00.000Z	60 \| moderate	13.973 \| fine	42.796 \| good	24 \| good	2.846 \| good	2.196 \| good	0.143 \| good
2025-07-21T17:00:00.000Z	54 \| moderate	11.151 \| good	58.807 \| fine	29 \| good	1.293 \| good	1.602 \| good	0.115 \| good
2025-07-21T18:00:00.000Z	52 \| moderate	9.679 \| good	50.481 \| good	37 \| good	1.125 \| good	1.741 \| good	0.167 \| good
2025-07-21T19:00:00.000Z	58 \| moderate	13.346 \| fine	57.36 \| fine	45 \| good	1.49 \| good	1.821 \| good	0.185 \| good
2025-07-21T20:00:00.000Z	64 \| moderate	16.264 \| fine	73.412 \| fine	55 \| fine	0.947 \| good	1.385 \| good	0.173 \| good
2025-07-21T21:00:00.000Z	69 \| moderate	18.973 \| fine	63.864 \| fine	60 \| fine	2.154 \| good	1.426 \| good	0.18 \| good
2025-07-21T22:00:00.000Z	101 \| sensitive	27.153 \| fine	115.516 \| fine	71 \| moderate	2.239 \| good	1.622 \| good	0.217 \| good
2025-07-21T23:00:00.000Z	112 \| sensitive	22.758 \| fine	88.733 \| fine	74 \| moderate	1.275 \| good	2.502 \| good	0.227 \| good
2025-07-22T00:00:00.000Z	100 \| moderate	27.578 \| fine	99.743 \| fine	70 \| fine	1.206 \| good	3.461 \| good	0.261 \| good
2025-07-22T01:00:00.000Z	81 \| moderate	25.251 \| fine	89.706 \| fine	63 \| fine	1.725 \| good	3.549 \| good	0.29 \| good
2025-07-22T02:00:00.000Z	73 \| moderate	20.511 \| fine	97.792 \| fine	60 \| fine	1.488 \| good	9.472 \| good	0.256 \| good
2025-07-22T03:00:00.000Z	64 \| moderate	16.264 \| fine	72.012 \| fine	27.292 \| good	1.839 \| good	11.174 \| good	0.317 \| good
2025-07-22T04:00:00.000Z	81 \| moderate	25.45 \| fine	96.1 \| fine	46 \| good	0.439 \| good	7.61 \| good	0.211 \| good
2025-07-22T04:00:00.000Z	64 \| moderate	16.264 \| fine	72.012 \| fine	27.292 \| good	1.839 \| good	11.174 \| good	0.317 \| good
2025-07-20T13:00:00.000Z	52 \| moderate	9.573 \| good	42.827 \| good	22.003 \| good	1.567 \| good	8.204 \| good	0.203 \| good
2025-07-20T14:00:00.000Z	52 \| moderate	9.542 \| good	42.737 \| good	23.177 \| good	1.811 \| good	8.491 \| good	0.209 \| good
2025-07-20T15:00:00.000Z	49 \| good	9.183 \| good	40.781 \| good	24.675 \| good	2.055 \| good	8.779 \| good	0.215 \| good
2025-07-20T16:00:00.000Z	38 \| good	7.252 \| good	31.829 \| good	26.834 \| good	1.97 \| good	7.506 \| good	0.209 \| good
2025-07-20T17:00:00.000Z	33 \| good	6.418 \| good	28.39 \| good	27.222 \| good	1.885 \| good	6.233 \| good	0.202 \| good
2025-07-20T18:00:00.000Z	38 \| good	6.585 \| good	29.24 \| good	33.339 \| good	1.8 \| good	4.961 \| good	0.196 \| good
2025-07-20T19:00:00.000Z	38 \| good	6.961 \| good	30.797 \| good	26.556 \| good	1.601 \| good	4.546 \| good	0.189 \| good
2025-07-20T20:00:00.000Z	38 \| good	6.779 \| good	30.202 \| good	24.158 \| good	1.403 \| good	4.131 \| good	0.181 \| good
2025-07-20T21:00:00.000Z	33 \| good	6.289 \| good	28.19 \| good	26.947 \| good	1.205 \| good	3.716 \| good	0.174 \| good
2025-07-20T22:00:00.000Z	38 \| good	7.274 \| good	31.917 \| good	32.659 \| good	1.353 \| good	4.247 \| good	0.171 \| good
2025-07-20T23:00:00.000Z	38 \| good	6.672 \| good	29.65 \| good	36.103 \| good	1.501 \| good	4.779 \| good	0.168 \| good
2025-07-21T00:00:00.000Z	38 \| good	6.567 \| good	29.477 \| good	35.27 \| good	1.649 \| good	5.31 \| good	0.165 \| good
2025-07-21T01:00:00.000Z	44 \| good	8.387 \| good	36.784 \| good	36.932 \| good	1.681 \| good	6.243 \| good	0.166 \| good
2025-07-21T02:00:00.000Z	49 \| good	8.632 \| good	37.985 \| good	36.495 \| good	1.714 \| good	7.176 \| good	0.167 \| good
2025-07-21T03:00:00.000Z	49 \| good	8.891 \| good	38.914 \| good	37.69 \| good	1.747 \| good	8.109 \| good	0.168 \| good
2025-07-21T04:00:00.000Z	49 \| good	8.512 \| good	37.492 \| good	33.513 \| good	1.641 \| good	7.821 \| good	0.182 \| good
2025-07-21T05:00:00.000Z	44 \| good	8.228 \| good	36.278 \| good	31.933 \| good	1.535 \| good	7.532 \| good	0.196 \| good
2025-07-21T06:00:00.000Z	44 \| good	7.79 \| good	34.15 \| good	28.959 \| good	1.43 \| good	7.244 \| good	0.21 \| good
2025-07-21T07:00:00.000Z	38 \| good	7.014 \| good	30.808 \| good	25.731 \| good	1.399 \| good	6.656 \| good	0.217 \| good
2025-07-21T08:00:00.000Z	38 \| good	6.959 \| good	31.039 \| good	22.631 \| good	1.368 \| good	6.069 \| good	0.223 \| good
2025-07-21T09:00:00.000Z	44 \| good	8.352 \| good	36.566 \| good	19.81 \| good	1.336 \| good	5.481 \| good	0.229 \| good
2025-07-21T10:00:00.000Z	52 \| moderate	9.575 \| good	42.538 \| good	16.307 \| good	1.326 \| good	5.424 \| good	0.232 \| good
2025-07-21T11:00:00.000Z	49 \| good	8.538 \| good	37.44 \| good	14.487 \| good	1.315 \| good	5.367 \| good	0.234 \| good
2025-07-21T12:00:00.000Z	44 \| good	8.399 \| good	36.984 \| good	19.111 \| good	1.304 \| good	5.31 \| good	0.236 \| good
2025-07-21T13:00:00.000Z	49 \| good	9.068 \| good	40.079 \| good	24.075 \| good	1.491 \| good	5.124 \| good	0.235 \| good
2025-07-21T14:00:00.000Z	52 \| moderate	9.557 \| good	42.587 \| good	29.451 \| good	1.677 \| good	4.938 \| good	0.234 \| good
2025-07-21T15:00:00.000Z	52 \| moderate	9.942 \| good	43.918 \| good	40.965 \| good	1.863 \| good	4.752 \| good	0.232 \| good
2025-07-21T16:00:00.000Z	52 \| moderate	9.864 \| good	44.031 \| good	50.554 \| good	1.777 \| good	3.775 \| good	0.218 \| good
2025-07-21T17:00:00.000Z	49 \| good	9.094 \| good	39.983 \| good	50.45 \| good	1.69 \| good	2.797 \| good	0.204 \| good
2025-07-21T18:00:00.000Z	49 \| good	8.571 \| good	38.053 \| good	49.211 \| good	1.604 \| good	1.819 \| good	0.189 \| good
2025-07-21T19:00:00.000Z	49 \| good	8.934 \| good	39.735 \| good	45.574 \| good	1.591 \| good	1.823 \| good	0.188 \| good
2025-07-21T20:00:00.000Z	49 \| good	9.424 \| good	41.625 \| good	47.463 \| good	1.577 \| good	1.826 \| good	0.188 \| good
2025-07-21T21:00:00.000Z	52 \| moderate	10.018 \| good	44.762 \| good	49.042 \| good	1.563 \| good	1.83 \| good	0.187 \| good
2025-07-21T22:00:00.000Z	58 \| moderate	13.325 \| fine	59.954 \| fine	47.422 \| good	1.577 \| good	2.78 \| good	0.193 \| good
2025-07-21T23:00:00.000Z	66 \| moderate	17.49 \| fine	77.468 \| fine	44.772 \| good	1.59 \| good	3.73 \| good	0.2 \| good
2025-07-22T00:00:00.000Z	77 \| moderate	22.65 \| fine	98.999 \| fine	34.555 \| good	1.603 \| good	4.68 \| good	0.206 \| good
2025-07-22T01:00:00.000Z	77 \| moderate	23.022 \| fine	100.575 \| fine	34.032 \| good	1.588 \| good	6.16 \| good	0.218 \| good
2025-07-22T02:00:00.000Z	81 \| moderate	24.988 \| fine	108.537 \| fine	29.88 \| good	1.572 \| good	7.641 \| good	0.229 \| good
2025-07-22T03:00:00.000Z	82 \| moderate	26.347 \| fine	114.054 \| fine	28.822 \| good	1.556 \| good	9.122 \| good	0.241 \| good
2025-07-22T04:00:00.000Z	81 \| moderate	25.466 \| fine	110.578 \| fine	25.84 \| good	1.563 \| good	9.588 \| good	0.246 \| good
2025-07-22T05:00:00.000Z	79 \| moderate	24.343 \| fine	106.56 \| fine	24.172 \| good	1.57 \| good	10.054 \| good	0.251 \| good
2025-07-22T06:00:00.000Z	62 \| moderate	14.644 \| fine	14.742 \| good	36.557 \| good	1.579 \| good	10.548 \| good	0.256 \| good
2025-07-22T07:00:00.000Z	79 \| moderate	23.599 \| fine	103.488 \| fine	17.437 \| good	1.708 \| good	10.443 \| good	0.255 \| good
2025-07-22T08:00:00.000Z	77 \| moderate	22.619 \| fine	99.41 \| fine	18.956 \| good	1.84 \| good	10.366 \| good	0.255 \| good
2025-07-22T09:00:00.000Z	75 \| moderate	22.257 \| fine	97.747 \| fine	17.825 \| good	1.972 \| good	10.289 \| good	0.255 \| good
2025-07-22T10:00:00.000Z	84 \| moderate	26.788 \| fine	116.765 \| fine	15.888 \| good	2.003 \| good	9.918 \| good	0.257 \| good
2025-07-22T11:00:00.000Z	79 \| moderate	23.687 \| fine	103.828 \| fine	10.749 \| good	2.034 \| good	9.547 \| good	0.259 \| good
2025-07-22T12:00:00.000Z	38 \| good	6.684 \| good	6.767 \| good	23.108 \| good	2.067 \| good	9.176 \| good	0.26 \| good

Lemont, Illinois live air quality index now

Major air pollutants in Lemont, Illinois

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Lemont, Illinois air quality map: Track AQI near you

Air quality in nearby cities

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Homer Glen, Illinois

Lockport, Illinois

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Frequently asked questions

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What is the current concentration of PM10 in Lemont, Illinois?

What is the current concentration of carbon monoxide (CO) in Lemont, Illinois?

What is the current concentration of sulfur dioxide (SO2) in Lemont, Illinois?

What is the current concentration of ozone (O3) in Lemont, Illinois?

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Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the current concentration of PM_2.5 in Lemont, Illinois?

What is the current concentration of PM₁₀ in Lemont, Illinois?

What is the current concentration of sulfur dioxide (SO₂) in Lemont, Illinois?

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What is the current concentration of nitrogen dioxide (NO₂) in Lemont, Illinois?