What are the current PM10 levels at Round Lake, Illinois?

The current PM10 levels in Round Lake, Illinois are 96.793 μg/m3.

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

The current sulfur dioxide (SO2) levels in Round Lake, Illinois are 1.16 ppb.

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

The current ozone (O3) levels at Round Lake, Illinois is 44.335 ppm.

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

The current nitrogen dioxide (NO2) levels at Round Lake, Illinois is 3.549 ppb.

Real-time air quality index in Round Lake, Illinois today

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

Stay updated with real-time air quality in Round Lake, 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

Round Lake, Illinois

Last updated: ... (Local time)

Common air pollutants in Round Lake, Illinois

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

16.82 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

68.30 μg/m³

155

255

425

605+

Ozone (O₃)

42.58 ppb

201

201+

Sulfur Dioxide (SO₂)

0.80 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.65 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.23 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Round Lake, Illinois

Get Live Pollen Counts

Round Lake, Illinois

Scroll To Air Quality Map

Track live Round Lake, Illinois air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-22T00:00:00.000Z	58 \| moderate	12.851 \| fine	51.786 \| good	42.318 \| good	0.917 \| good	1.844 \| good	0.268 \| good
2025-07-22T01:00:00.000Z	73 \| moderate	21.092 \| fine	30.622 \| good	45.447 \| good	1.344 \| good	2.678 \| good	0.301 \| good
2025-07-22T02:00:00.000Z	75 \| moderate	21.971 \| fine	96.793 \| fine	44.335 \| good	1.16 \| good	3.549 \| good	0.289 \| good
2025-07-22T03:00:00.000Z	44 \| good	8.088 \| good	35.15 \| good	33.183 \| good	0.689 \| good	5.894 \| good	0.229 \| good
2025-07-22T04:00:00.000Z	79 \| moderate	23.923 \| fine	44.115 \| good	33.779 \| good	0.414 \| good	6.05 \| good	0.211 \| good
2025-07-22T05:00:00.000Z	69 \| moderate	19.494 \| fine	29.388 \| good	35.036 \| good	0.529 \| good	7.319 \| good	0.166 \| good
2025-07-22T06:00:00.000Z	62 \| moderate	14.811 \| fine	25.855 \| good	28.592 \| good	0.728 \| good	7.261 \| good	0.145 \| good
2025-07-22T07:00:00.000Z	64 \| moderate	16.495 \| fine	47.051 \| good	28.099 \| good	0.632 \| good	7.296 \| good	0.122 \| good
2025-07-22T08:00:00.000Z	67 \| moderate	18.446 \| fine	63.941 \| fine	25.829 \| good	0.452 \| good	10.275 \| good	0.122 \| good
2025-07-22T09:00:00.000Z	75 \| moderate	21.747 \| fine	94.382 \| fine	20.152 \| good	0.348 \| good	9.929 \| good	0.111 \| good
2025-07-22T10:00:00.000Z	65 \| moderate	16.484 \| fine	83.015 \| fine	20.055 \| good	0.359 \| good	9.246 \| good	0.122 \| good
2025-07-22T11:00:00.000Z	92 \| moderate	30.558 \| fine	128.887 \| fine	20.822 \| good	0.493 \| good	7.503 \| good	0.177 \| good
2025-07-22T12:00:00.000Z	75 \| moderate	21.743 \| fine	89.807 \| fine	23.471 \| good	0.487 \| good	7.408 \| good	0.177 \| good
2025-07-22T13:00:00.000Z	88 \| moderate	29.347 \| fine	121.306 \| fine	24.178 \| good	0.296 \| good	7.018 \| good	0.177 \| good
2025-07-22T14:00:00.000Z	81 \| moderate	24.678 \| fine	101.431 \| fine	22.019 \| good	0.736 \| good	4.273 \| good	0.185 \| good
2025-07-22T15:00:00.000Z	86 \| moderate	28.365 \| fine	117.643 \| fine	26.128 \| good	0.828 \| good	5.04 \| good	0.231 \| good
2025-07-22T16:00:00.000Z	86 \| moderate	28.256 \| fine	65.268 \| fine	33.286 \| good	1.163 \| good	3.759 \| good	0.222 \| good
2025-07-22T17:00:00.000Z	90 \| moderate	29.521 \| fine	68.581 \| fine	42.151 \| good	1.103 \| good	2.244 \| good	0.222 \| good
2025-07-22T18:00:00.000Z	90 \| moderate	30.356 \| fine	48.55 \| good	49.495 \| good	1.11 \| good	2.509 \| good	0.211 \| good
2025-07-22T19:00:00.000Z	88 \| moderate	28.722 \| fine	79.761 \| fine	53.993 \| good	0.975 \| good	2.119 \| good	0.255 \| good
2025-07-22T20:00:00.000Z	81 \| moderate	24.938 \| fine	82.185 \| fine	63.49 \| fine	0.834 \| good	1.842 \| good	0.268 \| good
2025-07-22T21:00:00.000Z	87 \| moderate	26.31 \| fine	53.391 \| good	65.778 \| fine	0.732 \| good	1.854 \| good	0.38 \| good
2025-07-22T22:00:00.000Z	74 \| moderate	18.988 \| fine	47.052 \| good	61.982 \| fine	0.775 \| good	1.857 \| good	0.504 \| good
2025-07-22T23:00:00.000Z	67 \| moderate	17.894 \| fine	54.356 \| good	59.879 \| fine	0.722 \| good	1.883 \| good	0.583 \| good
2025-07-23T00:00:00.000Z	77 \| moderate	23.059 \| fine	59.195 \| fine	59.477 \| fine	0.769 \| good	1.985 \| good	0.537 \| good
2025-07-23T01:00:00.000Z	75 \| moderate	22.498 \| fine	80.736 \| fine	58.001 \| fine	0.692 \| good	2.497 \| good	0.516 \| good
2025-07-23T02:00:00.000Z	73 \| moderate	21.312 \| fine	61.81 \| fine	54.8 \| good	0.659 \| good	4.752 \| good	0.549 \| good
2025-07-23T03:00:00.000Z	73 \| moderate	20.626 \| fine	85.075 \| fine	47.76 \| good	0.573 \| good	5.632 \| good	0.56 \| good
2025-07-23T04:00:00.000Z	69 \| moderate	18.724 \| fine	61.411 \| fine	44.825 \| good	0.569 \| good	5.22 \| good	0.47 \| good
2025-07-23T05:00:00.000Z	71 \| moderate	20.346 \| fine	66.19 \| fine	41.539 \| good	0.553 \| good	4.378 \| good	0.47 \| good
2025-07-23T06:00:00.000Z	71 \| moderate	20.139 \| fine	76.687 \| fine	43.627 \| good	0.917 \| good	6.1 \| good	0.47 \| good
2025-07-23T07:00:00.000Z	69 \| moderate	18.664 \| fine	69.982 \| fine	39.653 \| good	2.303 \| good	5.147 \| good	0.448 \| good
2025-07-23T08:00:00.000Z	67 \| moderate	18.095 \| fine	79.94 \| fine	47.44 \| good	3.197 \| good	5.865 \| good	0.402 \| good
2025-07-23T09:00:00.000Z	64 \| moderate	16.017 \| fine	74.873 \| fine	39.587 \| good	2.353 \| good	5.781 \| good	0.402 \| good
2025-07-23T10:00:00.000Z	67 \| moderate	17.896 \| fine	77.771 \| fine	41.678 \| good	1.979 \| good	11.437 \| good	0.402 \| good
2025-07-23T11:00:00.000Z	66 \| moderate	16.889 \| fine	67.844 \| fine	36.059 \| good	1.281 \| good	8.566 \| good	0.402 \| good
2025-07-23T12:00:00.000Z	66 \| moderate	17.477 \| fine	77.505 \| fine	33.269 \| good	1.151 \| good	8.645 \| good	0.256 \| good
2025-07-23T13:00:00.000Z	66 \| moderate	17.394 \| fine	76.544 \| fine	35.005 \| good	1.6 \| good	11.696 \| good	0.289 \| good
2025-07-23T14:00:00.000Z	69 \| moderate	18.521 \| fine	82.012 \| fine	36.85 \| good	0.608 \| good	11.912 \| good	0.289 \| good
2025-07-23T15:00:00.000Z	66 \| moderate	17.26 \| fine	66.492 \| fine	38.359 \| good	0.544 \| good	11.277 \| good	0.289 \| good
2025-07-23T16:00:00.000Z	67 \| moderate	18.254 \| fine	77.808 \| fine	43.996 \| good	0.841 \| good	10.707 \| good	0.277 \| good
2025-07-23T17:00:00.000Z	66 \| moderate	17.341 \| fine	79.725 \| fine	45.54 \| good	0.712 \| good	10.748 \| good	0.234 \| good
2025-07-23T18:00:00.000Z	66 \| moderate	16.653 \| fine	63.77 \| fine	46.585 \| good	0.676 \| good	6.737 \| good	0.235 \| good
2025-07-23T19:00:00.000Z	67 \| moderate	18.418 \| fine	65.317 \| fine	46.104 \| good	0.66 \| good	4.292 \| good	0.235 \| good
2025-07-23T20:00:00.000Z	67 \| moderate	18.214 \| fine	70.84 \| fine	48.397 \| good	0.708 \| good	5.47 \| good	0.235 \| good
2025-07-23T21:00:00.000Z	66 \| moderate	17.214 \| fine	55.025 \| fine	45.659 \| good	0.831 \| good	4.83 \| good	0.235 \| good
2025-07-23T22:00:00.000Z	66 \| moderate	16.822 \| fine	68.3 \| fine	42.581 \| good	0.804 \| good	4.652 \| good	0.225 \| good
2025-07-23T23:00:00.000Z	60 \| moderate	14.351 \| fine	44.381 \| good	53.544 \| good	0.532 \| good	4.388 \| good	0.174 \| good
2025-07-23T23:00:00.000Z	66 \| moderate	16.822 \| fine	68.3 \| fine	42.581 \| good	0.804 \| good	4.652 \| good	0.225 \| good
2025-07-22T04:00:00.000Z	44 \| good	7.635 \| good	33.506 \| good	26.459 \| good	0.777 \| good	5.803 \| good	0.226 \| good
2025-07-22T05:00:00.000Z	38 \| good	6.849 \| good	30.481 \| good	23.227 \| good	0.865 \| good	5.819 \| good	0.224 \| good
2025-07-22T06:00:00.000Z	38 \| good	6.577 \| good	29.313 \| good	21.883 \| good	0.954 \| good	5.835 \| good	0.223 \| good
2025-07-22T07:00:00.000Z	33 \| good	6.364 \| good	27.846 \| good	21.288 \| good	1.048 \| good	6.128 \| good	0.231 \| good
2025-07-22T08:00:00.000Z	33 \| good	6.398 \| good	28.585 \| good	19.733 \| good	1.143 \| good	6.421 \| good	0.239 \| good
2025-07-22T09:00:00.000Z	49 \| good	8.519 \| good	37.553 \| good	19.233 \| good	1.237 \| good	6.715 \| good	0.247 \| good
2025-07-22T10:00:00.000Z	60 \| moderate	13.563 \| fine	60.715 \| fine	13.524 \| good	1.413 \| good	7.178 \| good	0.263 \| good
2025-07-22T11:00:00.000Z	69 \| moderate	19.115 \| fine	84.94 \| fine	11.749 \| good	1.59 \| good	7.642 \| good	0.278 \| good
2025-07-22T12:00:00.000Z	81 \| moderate	25.376 \| fine	110.778 \| fine	15.475 \| good	1.766 \| good	8.106 \| good	0.294 \| good
2025-07-22T13:00:00.000Z	82 \| moderate	26.081 \| fine	113.646 \| fine	22.785 \| good	1.961 \| good	7.721 \| good	0.303 \| good
2025-07-22T14:00:00.000Z	75 \| moderate	22.105 \| fine	96.784 \| fine	29.183 \| good	2.157 \| good	7.336 \| good	0.313 \| good
2025-07-22T15:00:00.000Z	67 \| moderate	17.803 \| fine	78.653 \| fine	35.9 \| good	2.352 \| good	6.952 \| good	0.322 \| good
2025-07-22T16:00:00.000Z	64 \| moderate	16.457 \| fine	72.865 \| fine	45.923 \| good	2.171 \| good	5.49 \| good	0.301 \| good
2025-07-22T17:00:00.000Z	64 \| moderate	16.218 \| fine	71.89 \| fine	54.322 \| good	1.99 \| good	4.028 \| good	0.281 \| good
2025-07-22T18:00:00.000Z	74 \| moderate	17.697 \| fine	78.143 \| fine	62.461 \| fine	1.809 \| good	2.566 \| good	0.26 \| good
2025-07-22T19:00:00.000Z	87 \| moderate	16.855 \| fine	74.918 \| fine	66.176 \| fine	1.678 \| good	2.491 \| good	0.254 \| good
2025-07-22T20:00:00.000Z	97 \| moderate	15.222 \| fine	68.047 \| fine	68.537 \| fine	1.547 \| good	2.417 \| good	0.247 \| good
2025-07-22T21:00:00.000Z	90 \| moderate	15.285 \| fine	68.651 \| fine	66.794 \| fine	1.417 \| good	2.342 \| good	0.241 \| good
2025-07-22T22:00:00.000Z	77 \| moderate	17.379 \| fine	77.289 \| fine	62.665 \| fine	1.418 \| good	3.29 \| good	0.242 \| good
2025-07-22T23:00:00.000Z	71 \| moderate	20.417 \| fine	89.665 \| fine	56.93 \| fine	1.419 \| good	4.238 \| good	0.244 \| good
2025-07-23T00:00:00.000Z	71 \| moderate	19.616 \| fine	86.624 \| fine	46.265 \| good	1.421 \| good	5.186 \| good	0.245 \| good
2025-07-23T01:00:00.000Z	66 \| moderate	17.117 \| fine	75.825 \| fine	38.902 \| good	1.607 \| good	6.471 \| good	0.251 \| good
2025-07-23T02:00:00.000Z	67 \| moderate	17.916 \| fine	79.27 \| fine	30.45 \| good	1.793 \| good	7.756 \| good	0.257 \| good
2025-07-23T03:00:00.000Z	69 \| moderate	18.742 \| fine	82.437 \| fine	24.794 \| good	1.979 \| good	9.042 \| good	0.262 \| good
2025-07-23T04:00:00.000Z	69 \| moderate	18.633 \| fine	82.179 \| fine	21.062 \| good	2.078 \| good	8.965 \| good	0.262 \| good
2025-07-23T05:00:00.000Z	66 \| moderate	16.639 \| fine	73.868 \| fine	21.747 \| good	2.177 \| good	8.889 \| good	0.262 \| good
2025-07-23T06:00:00.000Z	62 \| moderate	15.095 \| fine	67.49 \| fine	25.542 \| good	2.276 \| good	8.812 \| good	0.262 \| good
2025-07-23T07:00:00.000Z	62 \| moderate	14.757 \| fine	65.49 \| fine	26.064 \| good	2.119 \| good	7.976 \| good	0.254 \| good
2025-07-23T08:00:00.000Z	60 \| moderate	13.624 \| fine	60.519 \| fine	24.818 \| good	1.962 \| good	7.139 \| good	0.246 \| good
2025-07-23T09:00:00.000Z	60 \| moderate	14.307 \| fine	64.512 \| fine	25.959 \| good	1.805 \| good	6.302 \| good	0.237 \| good
2025-07-23T10:00:00.000Z	62 \| moderate	15.361 \| fine	68.558 \| fine	27.154 \| good	1.706 \| good	6.069 \| good	0.233 \| good
2025-07-23T11:00:00.000Z	62 \| moderate	14.769 \| fine	66.007 \| fine	26.55 \| good	1.607 \| good	5.835 \| good	0.229 \| good
2025-07-23T12:00:00.000Z	62 \| moderate	15.288 \| fine	68.085 \| fine	26.198 \| good	1.508 \| good	5.601 \| good	0.225 \| good
2025-07-23T13:00:00.000Z	64 \| moderate	15.797 \| fine	70.22 \| fine	30.351 \| good	1.923 \| good	5.131 \| good	0.229 \| good
2025-07-23T14:00:00.000Z	60 \| moderate	13.608 \| fine	61.407 \| fine	38.112 \| good	2.339 \| good	4.66 \| good	0.234 \| good
2025-07-23T15:00:00.000Z	58 \| moderate	13.499 \| fine	60.957 \| fine	43.939 \| good	2.754 \| good	4.19 \| good	0.238 \| good
2025-07-23T16:00:00.000Z	62 \| moderate	14.517 \| fine	64.587 \| fine	43.829 \| good	2.683 \| good	3.446 \| good	0.232 \| good
2025-07-23T17:00:00.000Z	60 \| moderate	13.816 \| fine	62.301 \| fine	42.267 \| good	2.611 \| good	2.702 \| good	0.227 \| good
2025-07-23T18:00:00.000Z	56 \| moderate	11.756 \| good	52.245 \| good	42.878 \| good	2.54 \| good	1.958 \| good	0.221 \| good
2025-07-23T19:00:00.000Z	54 \| moderate	11.164 \| good	49.212 \| good	44.525 \| good	2.26 \| good	2 \| good	0.214 \| good
2025-07-23T20:00:00.000Z	54 \| moderate	11.242 \| good	49.569 \| good	46.943 \| good	1.98 \| good	2.042 \| good	0.207 \| good
2025-07-23T21:00:00.000Z	54 \| moderate	11.373 \| good	50.175 \| good	49.79 \| good	1.7 \| good	2.084 \| good	0.2 \| good
2025-07-23T22:00:00.000Z	56 \| moderate	12.159 \| fine	54.499 \| good	51.493 \| good	1.589 \| good	3.012 \| good	0.202 \| good
2025-07-23T23:00:00.000Z	58 \| moderate	12.709 \| fine	56.945 \| fine	48.4 \| good	1.479 \| good	3.939 \| good	0.203 \| good
2025-07-24T00:00:00.000Z	101 \| sensitive	11.179 \| good	13.138 \| good	70.609 \| fine	1.378 \| good	4.941 \| good	0.206 \| good
2025-07-24T01:00:00.000Z	56 \| moderate	12.026 \| good	53.771 \| good	47.924 \| good	1.441 \| good	6.038 \| good	0.212 \| good
2025-07-24T02:00:00.000Z	58 \| moderate	13.184 \| fine	59.62 \| fine	42.019 \| good	1.515 \| good	7.21 \| good	0.22 \| good
2025-07-24T03:00:00.000Z	60 \| moderate	14.009 \| fine	62.632 \| fine	35.472 \| good	1.588 \| good	8.382 \| good	0.227 \| good

Round Lake

Empower business decisions with accurate air quality data

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

0.29ppm

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 Round Lake, Illinois updated?

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

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

The worst air quality in Round Lake, Illinois was recorded at 11:00:00 on 2025-07-21.

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

The best air quality in Round Lake, Illinois was recorded at 12:00:00 on 2025-07-22.

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

The real-time air quality index in Round Lake, Illinois is 75, currently categorized as Moderate.

Which pollutant is found most often in Round Lake, Illinois?

The most common pollutant in Round Lake, Illinois is PM2.5.

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

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

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

The measured PM_2.5 levels in Round Lake, Illinois at present are 21.971 μg/m³.

What are the current PM₁₀ levels at Round Lake, Illinois?

The current PM₁₀ levels in Round Lake, Illinois are 96.793 μg/m³.

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

The current carbon monoxide (CO) level in Round Lake, Illinois is 0.289 ppm.

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

The current sulfur dioxide (SO₂) levels in Round Lake, Illinois are 1.16 ppb.

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

The current ozone (O₃) levels at Round Lake, Illinois is 44.335 ppm.

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

The current nitrogen dioxide (NO₂) levels at Round Lake, Illinois is 3.549 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-22T00:00:00.000Z	58 \| moderate	12.851 \| fine	51.786 \| good	42.318 \| good	0.917 \| good	1.844 \| good	0.268 \| good
2025-07-22T01:00:00.000Z	73 \| moderate	21.092 \| fine	30.622 \| good	45.447 \| good	1.344 \| good	2.678 \| good	0.301 \| good
2025-07-22T02:00:00.000Z	75 \| moderate	21.971 \| fine	96.793 \| fine	44.335 \| good	1.16 \| good	3.549 \| good	0.289 \| good
2025-07-22T03:00:00.000Z	44 \| good	8.088 \| good	35.15 \| good	33.183 \| good	0.689 \| good	5.894 \| good	0.229 \| good
2025-07-22T04:00:00.000Z	79 \| moderate	23.923 \| fine	44.115 \| good	33.779 \| good	0.414 \| good	6.05 \| good	0.211 \| good
2025-07-22T05:00:00.000Z	69 \| moderate	19.494 \| fine	29.388 \| good	35.036 \| good	0.529 \| good	7.319 \| good	0.166 \| good
2025-07-22T06:00:00.000Z	62 \| moderate	14.811 \| fine	25.855 \| good	28.592 \| good	0.728 \| good	7.261 \| good	0.145 \| good
2025-07-22T07:00:00.000Z	64 \| moderate	16.495 \| fine	47.051 \| good	28.099 \| good	0.632 \| good	7.296 \| good	0.122 \| good
2025-07-22T08:00:00.000Z	67 \| moderate	18.446 \| fine	63.941 \| fine	25.829 \| good	0.452 \| good	10.275 \| good	0.122 \| good
2025-07-22T09:00:00.000Z	75 \| moderate	21.747 \| fine	94.382 \| fine	20.152 \| good	0.348 \| good	9.929 \| good	0.111 \| good
2025-07-22T10:00:00.000Z	65 \| moderate	16.484 \| fine	83.015 \| fine	20.055 \| good	0.359 \| good	9.246 \| good	0.122 \| good
2025-07-22T11:00:00.000Z	92 \| moderate	30.558 \| fine	128.887 \| fine	20.822 \| good	0.493 \| good	7.503 \| good	0.177 \| good
2025-07-22T12:00:00.000Z	75 \| moderate	21.743 \| fine	89.807 \| fine	23.471 \| good	0.487 \| good	7.408 \| good	0.177 \| good
2025-07-22T13:00:00.000Z	88 \| moderate	29.347 \| fine	121.306 \| fine	24.178 \| good	0.296 \| good	7.018 \| good	0.177 \| good
2025-07-22T14:00:00.000Z	81 \| moderate	24.678 \| fine	101.431 \| fine	22.019 \| good	0.736 \| good	4.273 \| good	0.185 \| good
2025-07-22T15:00:00.000Z	86 \| moderate	28.365 \| fine	117.643 \| fine	26.128 \| good	0.828 \| good	5.04 \| good	0.231 \| good
2025-07-22T16:00:00.000Z	86 \| moderate	28.256 \| fine	65.268 \| fine	33.286 \| good	1.163 \| good	3.759 \| good	0.222 \| good
2025-07-22T17:00:00.000Z	90 \| moderate	29.521 \| fine	68.581 \| fine	42.151 \| good	1.103 \| good	2.244 \| good	0.222 \| good
2025-07-22T18:00:00.000Z	90 \| moderate	30.356 \| fine	48.55 \| good	49.495 \| good	1.11 \| good	2.509 \| good	0.211 \| good
2025-07-22T19:00:00.000Z	88 \| moderate	28.722 \| fine	79.761 \| fine	53.993 \| good	0.975 \| good	2.119 \| good	0.255 \| good
2025-07-22T20:00:00.000Z	81 \| moderate	24.938 \| fine	82.185 \| fine	63.49 \| fine	0.834 \| good	1.842 \| good	0.268 \| good
2025-07-22T21:00:00.000Z	87 \| moderate	26.31 \| fine	53.391 \| good	65.778 \| fine	0.732 \| good	1.854 \| good	0.38 \| good
2025-07-22T22:00:00.000Z	74 \| moderate	18.988 \| fine	47.052 \| good	61.982 \| fine	0.775 \| good	1.857 \| good	0.504 \| good
2025-07-22T23:00:00.000Z	67 \| moderate	17.894 \| fine	54.356 \| good	59.879 \| fine	0.722 \| good	1.883 \| good	0.583 \| good
2025-07-23T00:00:00.000Z	77 \| moderate	23.059 \| fine	59.195 \| fine	59.477 \| fine	0.769 \| good	1.985 \| good	0.537 \| good
2025-07-23T01:00:00.000Z	75 \| moderate	22.498 \| fine	80.736 \| fine	58.001 \| fine	0.692 \| good	2.497 \| good	0.516 \| good
2025-07-23T02:00:00.000Z	73 \| moderate	21.312 \| fine	61.81 \| fine	54.8 \| good	0.659 \| good	4.752 \| good	0.549 \| good
2025-07-23T03:00:00.000Z	73 \| moderate	20.626 \| fine	85.075 \| fine	47.76 \| good	0.573 \| good	5.632 \| good	0.56 \| good
2025-07-23T04:00:00.000Z	69 \| moderate	18.724 \| fine	61.411 \| fine	44.825 \| good	0.569 \| good	5.22 \| good	0.47 \| good
2025-07-23T05:00:00.000Z	71 \| moderate	20.346 \| fine	66.19 \| fine	41.539 \| good	0.553 \| good	4.378 \| good	0.47 \| good
2025-07-23T06:00:00.000Z	71 \| moderate	20.139 \| fine	76.687 \| fine	43.627 \| good	0.917 \| good	6.1 \| good	0.47 \| good
2025-07-23T07:00:00.000Z	69 \| moderate	18.664 \| fine	69.982 \| fine	39.653 \| good	2.303 \| good	5.147 \| good	0.448 \| good
2025-07-23T08:00:00.000Z	67 \| moderate	18.095 \| fine	79.94 \| fine	47.44 \| good	3.197 \| good	5.865 \| good	0.402 \| good
2025-07-23T09:00:00.000Z	64 \| moderate	16.017 \| fine	74.873 \| fine	39.587 \| good	2.353 \| good	5.781 \| good	0.402 \| good
2025-07-23T10:00:00.000Z	67 \| moderate	17.896 \| fine	77.771 \| fine	41.678 \| good	1.979 \| good	11.437 \| good	0.402 \| good
2025-07-23T11:00:00.000Z	66 \| moderate	16.889 \| fine	67.844 \| fine	36.059 \| good	1.281 \| good	8.566 \| good	0.402 \| good
2025-07-23T12:00:00.000Z	66 \| moderate	17.477 \| fine	77.505 \| fine	33.269 \| good	1.151 \| good	8.645 \| good	0.256 \| good
2025-07-23T13:00:00.000Z	66 \| moderate	17.394 \| fine	76.544 \| fine	35.005 \| good	1.6 \| good	11.696 \| good	0.289 \| good
2025-07-23T14:00:00.000Z	69 \| moderate	18.521 \| fine	82.012 \| fine	36.85 \| good	0.608 \| good	11.912 \| good	0.289 \| good
2025-07-23T15:00:00.000Z	66 \| moderate	17.26 \| fine	66.492 \| fine	38.359 \| good	0.544 \| good	11.277 \| good	0.289 \| good
2025-07-23T16:00:00.000Z	67 \| moderate	18.254 \| fine	77.808 \| fine	43.996 \| good	0.841 \| good	10.707 \| good	0.277 \| good
2025-07-23T17:00:00.000Z	66 \| moderate	17.341 \| fine	79.725 \| fine	45.54 \| good	0.712 \| good	10.748 \| good	0.234 \| good
2025-07-23T18:00:00.000Z	66 \| moderate	16.653 \| fine	63.77 \| fine	46.585 \| good	0.676 \| good	6.737 \| good	0.235 \| good
2025-07-23T19:00:00.000Z	67 \| moderate	18.418 \| fine	65.317 \| fine	46.104 \| good	0.66 \| good	4.292 \| good	0.235 \| good
2025-07-23T20:00:00.000Z	67 \| moderate	18.214 \| fine	70.84 \| fine	48.397 \| good	0.708 \| good	5.47 \| good	0.235 \| good
2025-07-23T21:00:00.000Z	66 \| moderate	17.214 \| fine	55.025 \| fine	45.659 \| good	0.831 \| good	4.83 \| good	0.235 \| good
2025-07-23T22:00:00.000Z	66 \| moderate	16.822 \| fine	68.3 \| fine	42.581 \| good	0.804 \| good	4.652 \| good	0.225 \| good
2025-07-23T23:00:00.000Z	60 \| moderate	14.351 \| fine	44.381 \| good	53.544 \| good	0.532 \| good	4.388 \| good	0.174 \| good
2025-07-23T23:00:00.000Z	66 \| moderate	16.822 \| fine	68.3 \| fine	42.581 \| good	0.804 \| good	4.652 \| good	0.225 \| good
2025-07-22T04:00:00.000Z	44 \| good	7.635 \| good	33.506 \| good	26.459 \| good	0.777 \| good	5.803 \| good	0.226 \| good
2025-07-22T05:00:00.000Z	38 \| good	6.849 \| good	30.481 \| good	23.227 \| good	0.865 \| good	5.819 \| good	0.224 \| good
2025-07-22T06:00:00.000Z	38 \| good	6.577 \| good	29.313 \| good	21.883 \| good	0.954 \| good	5.835 \| good	0.223 \| good
2025-07-22T07:00:00.000Z	33 \| good	6.364 \| good	27.846 \| good	21.288 \| good	1.048 \| good	6.128 \| good	0.231 \| good
2025-07-22T08:00:00.000Z	33 \| good	6.398 \| good	28.585 \| good	19.733 \| good	1.143 \| good	6.421 \| good	0.239 \| good
2025-07-22T09:00:00.000Z	49 \| good	8.519 \| good	37.553 \| good	19.233 \| good	1.237 \| good	6.715 \| good	0.247 \| good
2025-07-22T10:00:00.000Z	60 \| moderate	13.563 \| fine	60.715 \| fine	13.524 \| good	1.413 \| good	7.178 \| good	0.263 \| good
2025-07-22T11:00:00.000Z	69 \| moderate	19.115 \| fine	84.94 \| fine	11.749 \| good	1.59 \| good	7.642 \| good	0.278 \| good
2025-07-22T12:00:00.000Z	81 \| moderate	25.376 \| fine	110.778 \| fine	15.475 \| good	1.766 \| good	8.106 \| good	0.294 \| good
2025-07-22T13:00:00.000Z	82 \| moderate	26.081 \| fine	113.646 \| fine	22.785 \| good	1.961 \| good	7.721 \| good	0.303 \| good
2025-07-22T14:00:00.000Z	75 \| moderate	22.105 \| fine	96.784 \| fine	29.183 \| good	2.157 \| good	7.336 \| good	0.313 \| good
2025-07-22T15:00:00.000Z	67 \| moderate	17.803 \| fine	78.653 \| fine	35.9 \| good	2.352 \| good	6.952 \| good	0.322 \| good
2025-07-22T16:00:00.000Z	64 \| moderate	16.457 \| fine	72.865 \| fine	45.923 \| good	2.171 \| good	5.49 \| good	0.301 \| good
2025-07-22T17:00:00.000Z	64 \| moderate	16.218 \| fine	71.89 \| fine	54.322 \| good	1.99 \| good	4.028 \| good	0.281 \| good
2025-07-22T18:00:00.000Z	74 \| moderate	17.697 \| fine	78.143 \| fine	62.461 \| fine	1.809 \| good	2.566 \| good	0.26 \| good
2025-07-22T19:00:00.000Z	87 \| moderate	16.855 \| fine	74.918 \| fine	66.176 \| fine	1.678 \| good	2.491 \| good	0.254 \| good
2025-07-22T20:00:00.000Z	97 \| moderate	15.222 \| fine	68.047 \| fine	68.537 \| fine	1.547 \| good	2.417 \| good	0.247 \| good
2025-07-22T21:00:00.000Z	90 \| moderate	15.285 \| fine	68.651 \| fine	66.794 \| fine	1.417 \| good	2.342 \| good	0.241 \| good
2025-07-22T22:00:00.000Z	77 \| moderate	17.379 \| fine	77.289 \| fine	62.665 \| fine	1.418 \| good	3.29 \| good	0.242 \| good
2025-07-22T23:00:00.000Z	71 \| moderate	20.417 \| fine	89.665 \| fine	56.93 \| fine	1.419 \| good	4.238 \| good	0.244 \| good
2025-07-23T00:00:00.000Z	71 \| moderate	19.616 \| fine	86.624 \| fine	46.265 \| good	1.421 \| good	5.186 \| good	0.245 \| good
2025-07-23T01:00:00.000Z	66 \| moderate	17.117 \| fine	75.825 \| fine	38.902 \| good	1.607 \| good	6.471 \| good	0.251 \| good
2025-07-23T02:00:00.000Z	67 \| moderate	17.916 \| fine	79.27 \| fine	30.45 \| good	1.793 \| good	7.756 \| good	0.257 \| good
2025-07-23T03:00:00.000Z	69 \| moderate	18.742 \| fine	82.437 \| fine	24.794 \| good	1.979 \| good	9.042 \| good	0.262 \| good
2025-07-23T04:00:00.000Z	69 \| moderate	18.633 \| fine	82.179 \| fine	21.062 \| good	2.078 \| good	8.965 \| good	0.262 \| good
2025-07-23T05:00:00.000Z	66 \| moderate	16.639 \| fine	73.868 \| fine	21.747 \| good	2.177 \| good	8.889 \| good	0.262 \| good
2025-07-23T06:00:00.000Z	62 \| moderate	15.095 \| fine	67.49 \| fine	25.542 \| good	2.276 \| good	8.812 \| good	0.262 \| good
2025-07-23T07:00:00.000Z	62 \| moderate	14.757 \| fine	65.49 \| fine	26.064 \| good	2.119 \| good	7.976 \| good	0.254 \| good
2025-07-23T08:00:00.000Z	60 \| moderate	13.624 \| fine	60.519 \| fine	24.818 \| good	1.962 \| good	7.139 \| good	0.246 \| good
2025-07-23T09:00:00.000Z	60 \| moderate	14.307 \| fine	64.512 \| fine	25.959 \| good	1.805 \| good	6.302 \| good	0.237 \| good
2025-07-23T10:00:00.000Z	62 \| moderate	15.361 \| fine	68.558 \| fine	27.154 \| good	1.706 \| good	6.069 \| good	0.233 \| good
2025-07-23T11:00:00.000Z	62 \| moderate	14.769 \| fine	66.007 \| fine	26.55 \| good	1.607 \| good	5.835 \| good	0.229 \| good
2025-07-23T12:00:00.000Z	62 \| moderate	15.288 \| fine	68.085 \| fine	26.198 \| good	1.508 \| good	5.601 \| good	0.225 \| good
2025-07-23T13:00:00.000Z	64 \| moderate	15.797 \| fine	70.22 \| fine	30.351 \| good	1.923 \| good	5.131 \| good	0.229 \| good
2025-07-23T14:00:00.000Z	60 \| moderate	13.608 \| fine	61.407 \| fine	38.112 \| good	2.339 \| good	4.66 \| good	0.234 \| good
2025-07-23T15:00:00.000Z	58 \| moderate	13.499 \| fine	60.957 \| fine	43.939 \| good	2.754 \| good	4.19 \| good	0.238 \| good
2025-07-23T16:00:00.000Z	62 \| moderate	14.517 \| fine	64.587 \| fine	43.829 \| good	2.683 \| good	3.446 \| good	0.232 \| good
2025-07-23T17:00:00.000Z	60 \| moderate	13.816 \| fine	62.301 \| fine	42.267 \| good	2.611 \| good	2.702 \| good	0.227 \| good
2025-07-23T18:00:00.000Z	56 \| moderate	11.756 \| good	52.245 \| good	42.878 \| good	2.54 \| good	1.958 \| good	0.221 \| good
2025-07-23T19:00:00.000Z	54 \| moderate	11.164 \| good	49.212 \| good	44.525 \| good	2.26 \| good	2 \| good	0.214 \| good
2025-07-23T20:00:00.000Z	54 \| moderate	11.242 \| good	49.569 \| good	46.943 \| good	1.98 \| good	2.042 \| good	0.207 \| good
2025-07-23T21:00:00.000Z	54 \| moderate	11.373 \| good	50.175 \| good	49.79 \| good	1.7 \| good	2.084 \| good	0.2 \| good
2025-07-23T22:00:00.000Z	56 \| moderate	12.159 \| fine	54.499 \| good	51.493 \| good	1.589 \| good	3.012 \| good	0.202 \| good
2025-07-23T23:00:00.000Z	58 \| moderate	12.709 \| fine	56.945 \| fine	48.4 \| good	1.479 \| good	3.939 \| good	0.203 \| good
2025-07-24T00:00:00.000Z	101 \| sensitive	11.179 \| good	13.138 \| good	70.609 \| fine	1.378 \| good	4.941 \| good	0.206 \| good
2025-07-24T01:00:00.000Z	56 \| moderate	12.026 \| good	53.771 \| good	47.924 \| good	1.441 \| good	6.038 \| good	0.212 \| good
2025-07-24T02:00:00.000Z	58 \| moderate	13.184 \| fine	59.62 \| fine	42.019 \| good	1.515 \| good	7.21 \| good	0.22 \| good
2025-07-24T03:00:00.000Z	60 \| moderate	14.009 \| fine	62.632 \| fine	35.472 \| good	1.588 \| good	8.382 \| good	0.227 \| good

Real-time air quality index in Round Lake, Illinois today

Common air pollutants in Round Lake, Illinois

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Round Lake, Illinois air quality forecast and history

Empower business decisions with accurate air quality data

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

Air quality in nearby cities

Round Lake Beach, Illinois

Grayslake, Illinois

Lindenhurst, Illinois

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Gages Lake, Illinois

Wauconda, 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 Round Lake, Illinois updated?

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

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

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

Which pollutant is found most often in Round Lake, Illinois?

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

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

What are the current PM10 levels at Round Lake, Illinois?

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

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

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

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

What are the current PM₁₀ levels at Round Lake, Illinois?

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

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

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