What is the current level of PM10 in Illinois, USA?

Illinois, USA currently has a PM10 concentration of 74.329 μg/m3.

What is the current level of sulfur dioxide (SO2) in Illinois, USA?

The current sulfur dioxide (SO2) concentration in Illinois, USA is 0.64 ppb.

What is the current level of ozone (O3) in Illinois, USA?

Illinois, USA currently has an ozone (O3) concentration of 31.997 ppm.

What is the current level of nitrogen dioxide (NO2) in Illinois, USA?

The current level of nitrogen dioxide (NO2) in Illinois, USA is 5.046 ppb.

Current air quality index in Illinois, USA today

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

Stay updated with real-time air quality in Illinois, USA 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

Illinois, USA

Last updated: ... (Local time)

Major air pollutants in Illinois, USA

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

16.83 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

74.33 μg/m³

155

255

425

605+

Ozone (O₃)

32.00 ppb

201

201+

Sulfur Dioxide (SO₂)

0.64 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

5.05 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.24 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Illinois, USA

Get Live Pollen Counts

Illinois, USA

Scroll To Air Quality Map

Track live Illinois, USA air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-02T15:00:00.000Z	49 \| good	8.585 \| good	35.481 \| good	27.712 \| good	1.096 \| good	9.851 \| good	0.215 \| good
2025-06-02T16:00:00.000Z	44 \| good	8.339 \| good	32.946 \| good	34.974 \| good	1.138 \| good	9.597 \| good	0.199 \| good
2025-06-02T17:00:00.000Z	44 \| good	7.695 \| good	40.287 \| good	37.967 \| good	1.073 \| good	7.953 \| good	0.202 \| good
2025-06-02T18:00:00.000Z	44 \| good	8.38 \| good	42.386 \| good	47.096 \| good	1.257 \| good	5.938 \| good	0.202 \| good
2025-06-02T19:00:00.000Z	49 \| good	9.411 \| good	38.936 \| good	48.693 \| good	0.991 \| good	5.645 \| good	0.202 \| good
2025-06-02T20:00:00.000Z	50 \| good	8.848 \| good	43.46 \| good	54.323 \| good	1.181 \| good	5.704 \| good	0.215 \| good
2025-06-02T21:00:00.000Z	58 \| moderate	9.415 \| good	33.407 \| good	57.443 \| fine	1.151 \| good	5.7 \| good	0.215 \| good
2025-06-02T22:00:00.000Z	74 \| moderate	12.653 \| fine	60.53 \| fine	62.31 \| fine	0.851 \| good	5.108 \| good	0.199 \| good
2025-06-02T23:00:00.000Z	71 \| moderate	14.348 \| fine	62.61 \| fine	61.336 \| fine	0.503 \| good	3.457 \| good	0.215 \| good
2025-06-03T00:00:00.000Z	69 \| moderate	18.577 \| fine	73.25 \| fine	59.144 \| fine	0.436 \| good	3.333 \| good	0.202 \| good
2025-06-03T01:00:00.000Z	71 \| moderate	16.873 \| fine	72.68 \| fine	60.642 \| fine	1.694 \| good	5.698 \| good	0.202 \| good
2025-06-03T02:00:00.000Z	64 \| moderate	16.426 \| fine	47.781 \| good	58.975 \| fine	2.273 \| good	6.093 \| good	0.186 \| good
2025-06-03T03:00:00.000Z	68 \| moderate	17.284 \| fine	88.694 \| fine	55.667 \| fine	3.124 \| good	5.462 \| good	0.186 \| good
2025-06-03T04:00:00.000Z	75 \| moderate	21.595 \| fine	77.336 \| fine	55.005 \| fine	3.167 \| good	7.68 \| good	0.186 \| good
2025-06-03T05:00:00.000Z	79 \| moderate	23.585 \| fine	94.084 \| fine	51.178 \| good	2.752 \| good	7.416 \| good	0.186 \| good
2025-06-03T06:00:00.000Z	74 \| moderate	21.162 \| fine	100.867 \| fine	48.397 \| good	1.646 \| good	7.835 \| good	0.186 \| good
2025-06-03T07:00:00.000Z	71 \| moderate	19.615 \| fine	78.01 \| fine	43.894 \| good	1.843 \| good	7.84 \| good	0.186 \| good
2025-06-03T08:00:00.000Z	66 \| moderate	17.411 \| fine	79.132 \| fine	42.08 \| good	1.335 \| good	8.002 \| good	0.186 \| good
2025-06-03T09:00:00.000Z	64 \| moderate	16.065 \| fine	54.58 \| good	36.989 \| good	1.19 \| good	7.891 \| good	0.169 \| good
2025-06-03T10:00:00.000Z	62 \| moderate	15.242 \| fine	65.834 \| fine	39.679 \| good	1.109 \| good	6.978 \| good	0.153 \| good
2025-06-03T11:00:00.000Z	58 \| moderate	12.798 \| fine	50.617 \| good	31.974 \| good	1.119 \| good	7.806 \| good	0.182 \| good
2025-06-03T12:00:00.000Z	58 \| moderate	12.685 \| fine	45.07 \| good	32.685 \| good	1.261 \| good	7.82 \| good	0.182 \| good
2025-06-03T13:00:00.000Z	58 \| moderate	12.69 \| fine	56.599 \| fine	31.623 \| good	1.181 \| good	9.572 \| good	0.215 \| good
2025-06-03T14:00:00.000Z	58 \| moderate	13.154 \| fine	57.104 \| fine	35.819 \| good	1.452 \| good	7.432 \| good	0.198 \| good
2025-06-03T15:00:00.000Z	60 \| moderate	13.752 \| fine	69.618 \| fine	38.288 \| good	1.667 \| good	5.151 \| good	0.186 \| good
2025-06-03T16:00:00.000Z	60 \| moderate	14.343 \| fine	64.862 \| fine	40.651 \| good	1.501 \| good	4.163 \| good	0.186 \| good
2025-06-03T17:00:00.000Z	60 \| moderate	14.035 \| fine	64.799 \| fine	43.393 \| good	1.035 \| good	4.472 \| good	0.186 \| good
2025-06-03T18:00:00.000Z	62 \| moderate	14.639 \| fine	66.265 \| fine	49.16 \| good	0.675 \| good	3.846 \| good	0.186 \| good
2025-06-03T19:00:00.000Z	64 \| moderate	15.574 \| fine	69.961 \| fine	47.439 \| good	0.559 \| good	3.844 \| good	0.186 \| good
2025-06-03T20:00:00.000Z	64 \| moderate	16.4 \| fine	71.918 \| fine	47.781 \| good	0.559 \| good	4.003 \| good	0.162 \| good
2025-06-03T21:00:00.000Z	66 \| moderate	16.551 \| fine	73.312 \| fine	49.245 \| good	0.568 \| good	3.407 \| good	0.202 \| good
2025-06-03T22:00:00.000Z	67 \| moderate	18.393 \| fine	80.585 \| fine	53.552 \| good	0.625 \| good	3.465 \| good	0.162 \| good
2025-06-03T23:00:00.000Z	69 \| moderate	19.139 \| fine	84.585 \| fine	48.288 \| good	0.652 \| good	4.86 \| good	0.199 \| good
2025-06-04T00:00:00.000Z	69 \| moderate	19.382 \| fine	77.254 \| fine	54.29 \| good	0.561 \| good	3.857 \| good	0.199 \| good
2025-06-04T01:00:00.000Z	66 \| moderate	17.25 \| fine	64.167 \| fine	52.781 \| good	0.525 \| good	3.991 \| good	0.175 \| good
2025-06-04T02:00:00.000Z	67 \| moderate	18.181 \| fine	77.891 \| fine	49.184 \| good	0.452 \| good	5.181 \| good	0.211 \| good
2025-06-04T03:00:00.000Z	58 \| moderate	12.599 \| fine	56.919 \| fine	45.765 \| good	0.511 \| good	2.333 \| good	0.22 \| good
2025-06-04T04:00:00.000Z	64 \| moderate	16.428 \| fine	61.132 \| fine	44.449 \| good	0.625 \| good	5.816 \| good	0.149 \| good
2025-06-04T05:00:00.000Z	42 \| good	6.971 \| good	31.93 \| good	44.603 \| good	0.586 \| good	5.924 \| good	0.291 \| good
2025-06-04T06:00:00.000Z	69 \| moderate	10.086 \| good	91.143 \| fine	49.775 \| good	0.602 \| good	5.294 \| good	0.268 \| good
2025-06-04T07:00:00.000Z	43 \| good	7.199 \| good	46.115 \| good	46.146 \| good	0.556 \| good	5.162 \| good	0.317 \| good
2025-06-04T08:00:00.000Z	56 \| moderate	3.744 \| good	66.455 \| fine	45.368 \| good	0.585 \| good	5.219 \| good	0.381 \| good
2025-06-04T09:00:00.000Z	31 \| good	5.308 \| good	14.352 \| good	33.081 \| good	0.736 \| good	3.096 \| good	0.383 \| good
2025-06-04T10:00:00.000Z	37 \| good	2.837 \| good	25.186 \| good	39.753 \| good	0.602 \| good	3.946 \| good	0.399 \| good
2025-06-04T11:00:00.000Z	36 \| good	3.11 \| good	11.676 \| good	38.757 \| good	0.536 \| good	8.616 \| good	0.425 \| good
2025-06-04T12:00:00.000Z	37 \| good	2.877 \| good	13.235 \| good	39.676 \| good	0.525 \| good	11.435 \| good	0.394 \| good
2025-06-04T13:00:00.000Z	34 \| good	5.598 \| good	24.047 \| good	36.626 \| good	0.211 \| good	3.176 \| good	0.191 \| good
2025-06-04T14:00:00.000Z	30 \| good	3.547 \| good	29.601 \| good	32.396 \| good	0.224 \| good	20.983 \| good	0.657 \| good
2025-06-04T14:00:00.000Z	66 \| moderate	16.828 \| fine	74.329 \| fine	31.997 \| good	0.64 \| good	5.046 \| good	0.243 \| good
2025-06-04T15:00:00.000Z	34 \| good	6.077 \| good	27.315 \| good	36.97 \| good	0.248 \| good	3.455 \| good	0.196 \| good
2025-06-04T16:00:00.000Z	75 \| moderate	22.193 \| fine	97.184 \| fine	36.734 \| good	0.334 \| good	2.43 \| good	0.196 \| good
2025-06-04T17:00:00.000Z	119 \| sensitive	43.052 \| moderate	192.362 \| moderate	33.487 \| good	0.353 \| good	2.665 \| good	0.199 \| good
2025-06-04T18:00:00.000Z	128 \| sensitive	46.309 \| moderate	208.697 \| moderate	32.642 \| good	0.372 \| good	2.9 \| good	0.202 \| good
2025-06-04T19:00:00.000Z	124 \| sensitive	44.691 \| moderate	200.829 \| moderate	36.607 \| good	0.479 \| good	2.494 \| good	0.202 \| good
2025-06-04T20:00:00.000Z	122 \| sensitive	43.584 \| moderate	194.88 \| moderate	39.481 \| good	0.504 \| good	2.823 \| good	0.207 \| good
2025-06-04T21:00:00.000Z	121 \| sensitive	43.495 \| moderate	194.826 \| moderate	44.19 \| good	0.53 \| good	3.153 \| good	0.212 \| good
2025-06-04T22:00:00.000Z	117 \| sensitive	42.158 \| moderate	187.046 \| moderate	46.916 \| good	0.671 \| good	3.704 \| good	0.208 \| good
2025-06-04T23:00:00.000Z	112 \| sensitive	39.882 \| moderate	176.896 \| moderate	53.241 \| good	0.712 \| good	4.185 \| good	0.216 \| good
2025-06-05T00:00:00.000Z	115 \| sensitive	40.757 \| moderate	180.88 \| moderate	53.161 \| good	0.754 \| good	4.666 \| good	0.223 \| good
2025-06-05T01:00:00.000Z	105 \| sensitive	37.283 \| moderate	162.99 \| moderate	46.273 \| good	0.885 \| good	5.326 \| good	0.213 \| good
2025-06-05T02:00:00.000Z	110 \| sensitive	38.854 \| moderate	171.026 \| moderate	43.591 \| good	0.933 \| good	5.62 \| good	0.217 \| good
2025-06-05T03:00:00.000Z	112 \| sensitive	40.153 \| moderate	177.122 \| moderate	39.736 \| good	0.981 \| good	5.913 \| good	0.222 \| good
2025-06-05T04:00:00.000Z	115 \| sensitive	41.021 \| moderate	182.806 \| moderate	35.928 \| good	1.076 \| good	5.541 \| good	0.196 \| good
2025-06-05T05:00:00.000Z	112 \| sensitive	39.503 \| moderate	174.778 \| moderate	32.528 \| good	1.138 \| good	5.678 \| good	0.199 \| good
2025-06-05T06:00:00.000Z	107 \| sensitive	37.985 \| moderate	166.839 \| moderate	31.99 \| good	1.199 \| good	5.815 \| good	0.202 \| good
2025-06-05T07:00:00.000Z	105 \| sensitive	36.8 \| moderate	160.86 \| moderate	31.499 \| good	1.205 \| good	5.474 \| good	0.19 \| good
2025-06-05T08:00:00.000Z	102 \| sensitive	35.843 \| moderate	156.843 \| moderate	30.864 \| good	1.281 \| good	5.586 \| good	0.193 \| good
2025-06-05T09:00:00.000Z	105 \| sensitive	37.084 \| moderate	162.738 \| moderate	26.268 \| good	1.357 \| good	5.697 \| good	0.197 \| good
2025-06-05T10:00:00.000Z	115 \| sensitive	41.003 \| moderate	181.207 \| moderate	24.495 \| good	1.128 \| good	5.039 \| good	0.199 \| good
2025-06-05T11:00:00.000Z	108 \| sensitive	38.373 \| moderate	168.655 \| moderate	25.276 \| good	1.204 \| good	5.19 \| good	0.202 \| good
2025-06-05T12:00:00.000Z	102 \| sensitive	35.894 \| moderate	156.984 \| moderate	29.498 \| good	1.28 \| good	5.34 \| good	0.204 \| good
2025-06-05T13:00:00.000Z	96 \| moderate	32.662 \| fine	140.994 \| fine	33.443 \| good	1.206 \| good	2.615 \| good	0.216 \| good
2025-06-05T14:00:00.000Z	99 \| moderate	34.563 \| fine	149.041 \| fine	37.887 \| good	1.255 \| good	2.688 \| good	0.217 \| good
2025-06-05T15:00:00.000Z	105 \| sensitive	36.803 \| moderate	160.77 \| moderate	42.212 \| good	1.304 \| good	2.761 \| good	0.219 \| good
2025-06-05T16:00:00.000Z	99 \| moderate	34.883 \| fine	150.977 \| fine	49.503 \| good	0.962 \| good	0.898 \| good	0.193 \| good
2025-06-05T17:00:00.000Z	96 \| moderate	32.924 \| fine	142.757 \| fine	55.041 \| fine	0.964 \| good	0.907 \| good	0.194 \| good
2025-06-05T18:00:00.000Z	88 \| moderate	28.916 \| fine	124.871 \| fine	59.238 \| fine	0.967 \| good	0.916 \| good	0.195 \| good
2025-06-05T19:00:00.000Z	79 \| moderate	24.166 \| fine	105.024 \| fine	61.859 \| fine	0.786 \| good	0.881 \| good	0.181 \| good
2025-06-05T20:00:00.000Z	79 \| moderate	24.486 \| fine	106.932 \| fine	61.083 \| fine	0.771 \| good	0.898 \| good	0.182 \| good
2025-06-05T21:00:00.000Z	75 \| moderate	22.102 \| fine	96.957 \| fine	60.538 \| fine	0.757 \| good	0.915 \| good	0.182 \| good
2025-06-05T22:00:00.000Z	73 \| moderate	21.477 \| fine	94.957 \| fine	60.601 \| fine	0.727 \| good	3.203 \| good	0.198 \| good
2025-06-05T23:00:00.000Z	82 \| moderate	26.446 \| fine	115.12 \| fine	58.46 \| fine	0.73 \| good	3.259 \| good	0.198 \| good
2025-06-06T00:00:00.000Z	105 \| sensitive	36.844 \| moderate	161.018 \| moderate	55.125 \| fine	0.733 \| good	3.316 \| good	0.199 \| good
2025-06-06T01:00:00.000Z	115 \| sensitive	40.751 \| moderate	180.897 \| moderate	48.47 \| good	0.737 \| good	5.673 \| good	0.221 \| good
2025-06-06T02:00:00.000Z	128 \| sensitive	46.362 \| moderate	208.842 \| moderate	42.629 \| good	0.794 \| good	5.841 \| good	0.223 \| good
2025-06-06T03:00:00.000Z	137 \| sensitive	49.837 \| moderate	224.942 \| moderate	37.404 \| good	0.85 \| good	6.008 \| good	0.225 \| good
2025-06-06T04:00:00.000Z	147 \| sensitive	53.84 \| moderate	244.995 \| moderate	33.638 \| good	1.107 \| good	6.625 \| good	0.236 \| good
2025-06-06T05:00:00.000Z	151 \| unhealthy	55.712 \| poor	254.875 \| moderate	31.46 \| good	1.175 \| good	6.737 \| good	0.238 \| good
2025-06-06T06:00:00.000Z	149 \| sensitive	54.815 \| moderate	250.902 \| moderate	31.916 \| good	1.243 \| good	6.849 \| good	0.24 \| good
2025-06-06T07:00:00.000Z	145 \| sensitive	53.318 \| moderate	242.971 \| moderate	28.787 \| good	1.229 \| good	8.16 \| good	0.248 \| good
2025-06-06T08:00:00.000Z	145 \| sensitive	53.226 \| moderate	242.879 \| moderate	25.423 \| good	1.27 \| good	8.364 \| good	0.251 \| good
2025-06-06T09:00:00.000Z	147 \| sensitive	53.795 \| moderate	245.003 \| moderate	21.807 \| good	1.311 \| good	8.569 \| good	0.253 \| good
2025-06-06T10:00:00.000Z	144 \| sensitive	53.152 \| moderate	241.185 \| moderate	21.971 \| good	1.158 \| good	6.989 \| good	0.255 \| good
2025-06-06T11:00:00.000Z	132 \| sensitive	48.039 \| moderate	216.866 \| moderate	18.934 \| good	1.184 \| good	7.084 \| good	0.257 \| good
2025-06-06T12:00:00.000Z	117 \| sensitive	41.845 \| moderate	187.052 \| moderate	24.654 \| good	1.209 \| good	7.179 \| good	0.259 \| good
2025-06-06T13:00:00.000Z	97 \| moderate	33.816 \| fine	145.26 \| fine	26.157 \| good	1.417 \| good	3.929 \| good	0.23 \| good
2025-06-06T14:00:00.000Z	84 \| moderate	27.397 \| fine	119.036 \| fine	34.875 \| good	1.389 \| good	3.985 \| good	0.23 \| good

Illinois

Empower business decisions with accurate air quality data

Real-time air quality map: Monitor AQI near Illinois, USA

Air quality in cities of Illinois, USA

City	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
Sterling, Illinois	158 Unhealthy	66.46μg/m³ Poor	168.88μg/m³ Moderate	31.19ppb Good	0.57ppb Good	3.52ppb Good	0.75ppm Good
Freeport, Illinois	158 Unhealthy	65.71μg/m³ Poor	165.36μg/m³ Moderate	29.40ppb Good	0.48ppb Good	3.64ppb Good	0.83ppm Good
Belvidere, Illinois	156 Unhealthy	63.08μg/m³ Poor	160.42μg/m³ Moderate	38.07ppb Good	0.48ppb Good	3.85ppb Good	0.90ppm Good
Dixon, Illinois	155 Unhealthy	60.85μg/m³ Poor	140.47μg/m³ Fine	33.77ppb Good	0.57ppb Good	3.68ppb Good	0.77ppm Good
Woodstock, Illinois	153 Unhealthy	58.06μg/m³ Poor	161.39μg/m³ Moderate	39.07ppb Good	0.48ppb Good	4.08ppb Good	0.94ppm Good
Kewanee, Illinois	139 Unhealthy for sensitive groups	51.43μg/m³ Moderate	174.11μg/m³ Moderate	28.06ppb Good	0.59ppb Good	2.58ppb Good	0.52ppm Good
Fox Lake, Illinois	134 Unhealthy for sensitive groups	49.33μg/m³ Moderate	124.19μg/m³ Fine	38.56ppb Good	0.48ppb Good	4.02ppb Good	0.96ppm Good
Galesburg, Illinois	132 Unhealthy for sensitive groups	47.99μg/m³ Moderate	210.47μg/m³ Moderate	26.45ppb Good	0.19ppb Good	1.92ppb Good	0.24ppm Good
Sycamore, Illinois	129 Unhealthy for sensitive groups	46.88μg/m³ Moderate	202.51μg/m³ Moderate	34.67ppb Good	0.55ppb Good	3.91ppb Good	0.85ppm Good
DeKalb, Illinois	127 Unhealthy for sensitive groups	46.44μg/m³ Moderate	201.91μg/m³ Moderate	32.52ppb Good	0.55ppb Good	3.86ppb Good	0.83ppm Good
McHenry, Illinois	119 Unhealthy for sensitive groups	43.35μg/m³ Moderate	124.15μg/m³ Fine	39.15ppb Good	0.48ppb Good	4.08ppb Good	0.94ppm Good
Macomb, Illinois	119 Unhealthy for sensitive groups	42.93μg/m³ Moderate	191.01μg/m³ Moderate	26.51ppb Good	0.09ppb Good	2.05ppb Good	0.19ppm Good
Huntley, Illinois	117 Unhealthy for sensitive groups	42.13μg/m³ Moderate	124.10μg/m³ Fine	34.44ppb Good	0.48ppb Good	4.08ppb Good	0.91ppm Good
Antioch, Illinois	110 Unhealthy for sensitive groups	38.85μg/m³ Moderate	102.21μg/m³ Fine	34.80ppb Good	0.48ppb Good	3.97ppb Good	0.99ppm Good
Roscoe, Illinois	94 Moderate	32.00μg/m³ Fine	74.36μg/m³ Fine	31.39ppb Good	0.47ppb Good	3.81ppb Good	0.91ppm Good
Round Lake, Illinois	86 Moderate	21.48μg/m³ Fine	124.81μg/m³ Fine	35.25ppb Good	0.48ppb Good	3.96ppb Good	0.95ppm Good
Round Lake Beach, Illinois	86 Moderate	21.48μg/m³ Fine	124.81μg/m³ Fine	35.25ppb Good	0.48ppb Good	3.96ppb Good	0.95ppm Good
Waukegan, Illinois	81 Moderate	25.27μg/m³ Fine	107.95μg/m³ Fine	31.00ppb Good	0.49ppb Good	3.88ppb Good	0.93ppm Good
Pingree Grove, Illinois	80 Moderate	19.97μg/m³ Fine	112.59μg/m³ Fine	32.49ppb Good	0.54ppb Good	4.06ppb Good	0.88ppm Good
Rolling Meadows, Illinois	78 Moderate	20.00μg/m³ Fine	109.06μg/m³ Fine	36.93ppb Good	0.53ppb Good	4.00ppb Good	0.88ppm Good
Loves Park, Illinois	77 Moderate	23.19μg/m³ Fine	67.23μg/m³ Fine	30.02ppb Good	0.47ppb Good	3.75ppb Good	0.90ppm Good
Machesney Park, Illinois	77 Moderate	23.29μg/m³ Fine	67.35μg/m³ Fine	30.14ppb Good	0.47ppb Good	3.75ppb Good	0.90ppm Good
Vernon Hills, Illinois	76 Moderate	20.74μg/m³ Fine	106.31μg/m³ Fine	31.96ppb Good	0.49ppb Good	3.96ppb Good	0.91ppm Good
Champaign, Illinois	73 Moderate	21.31μg/m³ Fine	94.36μg/m³ Fine	36.38ppb Good	0.97ppb Good	3.14ppb Good	0.13ppm Good
Grayslake, Illinois	73 Moderate	21.30μg/m³ Fine	86.39μg/m³ Fine	31.94ppb Good	0.49ppb Good	3.90ppb Good	0.95ppm Good
Plano, Illinois	74 Moderate	15.71μg/m³ Fine	100.67μg/m³ Fine	38.02ppb Good	0.56ppb Good	3.93ppb Good	0.79ppm Good
Hoffman Estates, Illinois	73 Moderate	21.18μg/m³ Fine	43.40μg/m³ Good	32.87ppb Good	0.53ppb Good	4.02ppb Good	0.88ppm Good
Lake Zurich, Illinois	73 Moderate	20.76μg/m³ Fine	64.65μg/m³ Fine	39.30ppb Good	0.49ppb Good	4.00ppb Good	0.92ppm Good
Schaumburg, Illinois	73 Moderate	21.08μg/m³ Fine	97.67μg/m³ Fine	36.07ppb Good	0.53ppb Good	4.01ppb Good	0.87ppm Good
Mundelein, Illinois	71 Moderate	20.23μg/m³ Fine	67.99μg/m³ Fine	31.51ppb Good	0.49ppb Good	3.95ppb Good	0.92ppm Good
Urbana, Illinois	73 Moderate	20.63μg/m³ Fine	88.98μg/m³ Fine	36.48ppb Good	0.98ppb Good	3.17ppb Good	0.13ppm Good
Arlington Heights, Illinois	71 Moderate	20.06μg/m³ Fine	59.61μg/m³ Fine	39.01ppb Good	0.53ppb Good	4.00ppb Good	0.88ppm Good
Hanover Park, Illinois	71 Moderate	20.13μg/m³ Fine	68.96μg/m³ Fine	35.47ppb Good	0.53ppb Good	4.03ppb Good	0.86ppm Good
Streamwood, Illinois	71 Moderate	20.13μg/m³ Fine	68.96μg/m³ Fine	35.47ppb Good	0.53ppb Good	4.03ppb Good	0.86ppm Good
Charleston, Illinois	69 Moderate	19.37μg/m³ Fine	84.84μg/m³ Fine	33.71ppb Good	0.77ppb Good	2.47ppb Good	0.17ppm Good
Geneva, Illinois	69 Moderate	19.29μg/m³ Fine	78.21μg/m³ Fine	39.94ppb Good	0.54ppb Good	4.02ppb Good	0.83ppm Good
St. Charles, Illinois	69 Moderate	19.24μg/m³ Fine	85.72μg/m³ Fine	35.98ppb Good	0.54ppb Good	4.03ppb Good	0.84ppm Good
Carbondale, Illinois	67 Moderate	18.39μg/m³ Fine	79.32μg/m³ Fine	34.52ppb Good	0.56ppb Good	4.23ppb Good	0.20ppm Good
Herrin, Illinois	67 Moderate	18.18μg/m³ Fine	79.23μg/m³ Fine	34.01ppb Good	0.53ppb Good	3.91ppb Good	0.21ppm Good
Marion, Illinois	67 Moderate	18.30μg/m³ Fine	81.01μg/m³ Fine	33.74ppb Good	0.53ppb Good	3.92ppb Good	0.21ppm Good
O'Fallon, Illinois	67 Moderate	18.12μg/m³ Fine	69.18μg/m³ Fine	32.83ppb Good	0.49ppb Good	4.02ppb Good	0.17ppm Good
Shiloh, Illinois	67 Moderate	18.12μg/m³ Fine	69.18μg/m³ Fine	32.83ppb Good	0.49ppb Good	4.02ppb Good	0.17ppm Good
Decatur, Illinois	66 Moderate	17.13μg/m³ Fine	76.69μg/m³ Fine	38.02ppb Good	0.85ppb Good	4.22ppb Good	0.20ppm Good
Mount Vernon, Illinois	66 Moderate	17.26μg/m³ Fine	76.17μg/m³ Fine	34.08ppb Good	0.52ppb Good	3.90ppb Good	0.19ppm Good
North Chicago, Illinois	66 Moderate	16.66μg/m³ Fine	70.77μg/m³ Fine	33.47ppb Good	0.49ppb Good	3.90ppb Good	0.94ppm Good
Taylorville, Illinois	66 Moderate	16.54μg/m³ Fine	62.36μg/m³ Fine	32.72ppb Good	0.73ppb Good	4.21ppb Good	0.22ppm Good
Canton, Illinois	64 Moderate	16.20μg/m³ Fine	48.09μg/m³ Good	28.24ppb Good	0.69ppb Good	3.86ppb Good	0.43ppm Good
Mattoon, Illinois	64 Moderate	16.19μg/m³ Fine	62.31μg/m³ Fine	31.25ppb Good	0.77ppb Good	4.50ppb Good	0.17ppm Good
Barrington, Illinois	62 Moderate	15.49μg/m³ Fine	67.08μg/m³ Fine	37.65ppb Good	0.49ppb Good	4.01ppb Good	0.91ppm Good
Belleville, Illinois	64 Moderate	15.70μg/m³ Fine	79.41μg/m³ Fine	35.37ppb Good	0.48ppb Good	4.13ppb Good	0.17ppm Good

City	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
No results found

0.25ppm

How accurate is Illinois, USA air quality data?

The air quality data for Illinois, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.

Source: Ambee Data Sources

Air quality levels in US

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

View Polluted Cities

Check live rankings of places in the USA with the cleanest air.

View Clean Cities

Frequently asked questions

How frequently does the air quality data for Illinois, USA get updated?

Air quality updates for Illinois, USA are available every hour.

What time in the past 24 hours saw the poorest air quality in Illinois, USA?

Illinois, USA experienced its worst air quality at 06:00:00, 2025-06-04.

When was air quality in Illinois, USA the best over the past 24 hours?

The best air quality in Illinois, USA was observed at 09:00:00 on 2025-06-04.

What is the air quality in Illinois, USA right now?

The air quality in Illinois, USA right now is Moderate, with an AQI of 66.

What pollutant is most frequently found in Illinois, USA?

In Illinois, USA, PM2.5 is the most frequently found pollutant.

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

When air quality in Illinois, USA is compromised, staying indoors and wearing a mask can reduce health risks.

What is the PM_2.5 concentration in Illinois, USA right now?

Illinois, USA currently has a PM_2.5 concentration of 16.828 μg/m³.

What is the current level of PM₁₀ in Illinois, USA?

Illinois, USA currently has a PM₁₀ concentration of 74.329 μg/m³.

What is the current level of carbon monoxide (CO) in Illinois, USA?

The current carbon monoxide (CO) level in Illinois, USA is 0.243 ppm.

What is the current level of sulfur dioxide (SO₂) in Illinois, USA?

The current sulfur dioxide (SO₂) concentration in Illinois, USA is 0.64 ppb.

What is the current level of ozone (O₃) in Illinois, USA?

Illinois, USA currently has an ozone (O₃) concentration of 31.997 ppm.

What is the current level of nitrogen dioxide (NO₂) in Illinois, USA?

The current level of nitrogen dioxide (NO₂) in Illinois, USA is 5.046 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-02T15:00:00.000Z	49 \| good	8.585 \| good	35.481 \| good	27.712 \| good	1.096 \| good	9.851 \| good	0.215 \| good
2025-06-02T16:00:00.000Z	44 \| good	8.339 \| good	32.946 \| good	34.974 \| good	1.138 \| good	9.597 \| good	0.199 \| good
2025-06-02T17:00:00.000Z	44 \| good	7.695 \| good	40.287 \| good	37.967 \| good	1.073 \| good	7.953 \| good	0.202 \| good
2025-06-02T18:00:00.000Z	44 \| good	8.38 \| good	42.386 \| good	47.096 \| good	1.257 \| good	5.938 \| good	0.202 \| good
2025-06-02T19:00:00.000Z	49 \| good	9.411 \| good	38.936 \| good	48.693 \| good	0.991 \| good	5.645 \| good	0.202 \| good
2025-06-02T20:00:00.000Z	50 \| good	8.848 \| good	43.46 \| good	54.323 \| good	1.181 \| good	5.704 \| good	0.215 \| good
2025-06-02T21:00:00.000Z	58 \| moderate	9.415 \| good	33.407 \| good	57.443 \| fine	1.151 \| good	5.7 \| good	0.215 \| good
2025-06-02T22:00:00.000Z	74 \| moderate	12.653 \| fine	60.53 \| fine	62.31 \| fine	0.851 \| good	5.108 \| good	0.199 \| good
2025-06-02T23:00:00.000Z	71 \| moderate	14.348 \| fine	62.61 \| fine	61.336 \| fine	0.503 \| good	3.457 \| good	0.215 \| good
2025-06-03T00:00:00.000Z	69 \| moderate	18.577 \| fine	73.25 \| fine	59.144 \| fine	0.436 \| good	3.333 \| good	0.202 \| good
2025-06-03T01:00:00.000Z	71 \| moderate	16.873 \| fine	72.68 \| fine	60.642 \| fine	1.694 \| good	5.698 \| good	0.202 \| good
2025-06-03T02:00:00.000Z	64 \| moderate	16.426 \| fine	47.781 \| good	58.975 \| fine	2.273 \| good	6.093 \| good	0.186 \| good
2025-06-03T03:00:00.000Z	68 \| moderate	17.284 \| fine	88.694 \| fine	55.667 \| fine	3.124 \| good	5.462 \| good	0.186 \| good
2025-06-03T04:00:00.000Z	75 \| moderate	21.595 \| fine	77.336 \| fine	55.005 \| fine	3.167 \| good	7.68 \| good	0.186 \| good
2025-06-03T05:00:00.000Z	79 \| moderate	23.585 \| fine	94.084 \| fine	51.178 \| good	2.752 \| good	7.416 \| good	0.186 \| good
2025-06-03T06:00:00.000Z	74 \| moderate	21.162 \| fine	100.867 \| fine	48.397 \| good	1.646 \| good	7.835 \| good	0.186 \| good
2025-06-03T07:00:00.000Z	71 \| moderate	19.615 \| fine	78.01 \| fine	43.894 \| good	1.843 \| good	7.84 \| good	0.186 \| good
2025-06-03T08:00:00.000Z	66 \| moderate	17.411 \| fine	79.132 \| fine	42.08 \| good	1.335 \| good	8.002 \| good	0.186 \| good
2025-06-03T09:00:00.000Z	64 \| moderate	16.065 \| fine	54.58 \| good	36.989 \| good	1.19 \| good	7.891 \| good	0.169 \| good
2025-06-03T10:00:00.000Z	62 \| moderate	15.242 \| fine	65.834 \| fine	39.679 \| good	1.109 \| good	6.978 \| good	0.153 \| good
2025-06-03T11:00:00.000Z	58 \| moderate	12.798 \| fine	50.617 \| good	31.974 \| good	1.119 \| good	7.806 \| good	0.182 \| good
2025-06-03T12:00:00.000Z	58 \| moderate	12.685 \| fine	45.07 \| good	32.685 \| good	1.261 \| good	7.82 \| good	0.182 \| good
2025-06-03T13:00:00.000Z	58 \| moderate	12.69 \| fine	56.599 \| fine	31.623 \| good	1.181 \| good	9.572 \| good	0.215 \| good
2025-06-03T14:00:00.000Z	58 \| moderate	13.154 \| fine	57.104 \| fine	35.819 \| good	1.452 \| good	7.432 \| good	0.198 \| good
2025-06-03T15:00:00.000Z	60 \| moderate	13.752 \| fine	69.618 \| fine	38.288 \| good	1.667 \| good	5.151 \| good	0.186 \| good
2025-06-03T16:00:00.000Z	60 \| moderate	14.343 \| fine	64.862 \| fine	40.651 \| good	1.501 \| good	4.163 \| good	0.186 \| good
2025-06-03T17:00:00.000Z	60 \| moderate	14.035 \| fine	64.799 \| fine	43.393 \| good	1.035 \| good	4.472 \| good	0.186 \| good
2025-06-03T18:00:00.000Z	62 \| moderate	14.639 \| fine	66.265 \| fine	49.16 \| good	0.675 \| good	3.846 \| good	0.186 \| good
2025-06-03T19:00:00.000Z	64 \| moderate	15.574 \| fine	69.961 \| fine	47.439 \| good	0.559 \| good	3.844 \| good	0.186 \| good
2025-06-03T20:00:00.000Z	64 \| moderate	16.4 \| fine	71.918 \| fine	47.781 \| good	0.559 \| good	4.003 \| good	0.162 \| good
2025-06-03T21:00:00.000Z	66 \| moderate	16.551 \| fine	73.312 \| fine	49.245 \| good	0.568 \| good	3.407 \| good	0.202 \| good
2025-06-03T22:00:00.000Z	67 \| moderate	18.393 \| fine	80.585 \| fine	53.552 \| good	0.625 \| good	3.465 \| good	0.162 \| good
2025-06-03T23:00:00.000Z	69 \| moderate	19.139 \| fine	84.585 \| fine	48.288 \| good	0.652 \| good	4.86 \| good	0.199 \| good
2025-06-04T00:00:00.000Z	69 \| moderate	19.382 \| fine	77.254 \| fine	54.29 \| good	0.561 \| good	3.857 \| good	0.199 \| good
2025-06-04T01:00:00.000Z	66 \| moderate	17.25 \| fine	64.167 \| fine	52.781 \| good	0.525 \| good	3.991 \| good	0.175 \| good
2025-06-04T02:00:00.000Z	67 \| moderate	18.181 \| fine	77.891 \| fine	49.184 \| good	0.452 \| good	5.181 \| good	0.211 \| good
2025-06-04T03:00:00.000Z	58 \| moderate	12.599 \| fine	56.919 \| fine	45.765 \| good	0.511 \| good	2.333 \| good	0.22 \| good
2025-06-04T04:00:00.000Z	64 \| moderate	16.428 \| fine	61.132 \| fine	44.449 \| good	0.625 \| good	5.816 \| good	0.149 \| good
2025-06-04T05:00:00.000Z	42 \| good	6.971 \| good	31.93 \| good	44.603 \| good	0.586 \| good	5.924 \| good	0.291 \| good
2025-06-04T06:00:00.000Z	69 \| moderate	10.086 \| good	91.143 \| fine	49.775 \| good	0.602 \| good	5.294 \| good	0.268 \| good
2025-06-04T07:00:00.000Z	43 \| good	7.199 \| good	46.115 \| good	46.146 \| good	0.556 \| good	5.162 \| good	0.317 \| good
2025-06-04T08:00:00.000Z	56 \| moderate	3.744 \| good	66.455 \| fine	45.368 \| good	0.585 \| good	5.219 \| good	0.381 \| good
2025-06-04T09:00:00.000Z	31 \| good	5.308 \| good	14.352 \| good	33.081 \| good	0.736 \| good	3.096 \| good	0.383 \| good
2025-06-04T10:00:00.000Z	37 \| good	2.837 \| good	25.186 \| good	39.753 \| good	0.602 \| good	3.946 \| good	0.399 \| good
2025-06-04T11:00:00.000Z	36 \| good	3.11 \| good	11.676 \| good	38.757 \| good	0.536 \| good	8.616 \| good	0.425 \| good
2025-06-04T12:00:00.000Z	37 \| good	2.877 \| good	13.235 \| good	39.676 \| good	0.525 \| good	11.435 \| good	0.394 \| good
2025-06-04T13:00:00.000Z	34 \| good	5.598 \| good	24.047 \| good	36.626 \| good	0.211 \| good	3.176 \| good	0.191 \| good
2025-06-04T14:00:00.000Z	30 \| good	3.547 \| good	29.601 \| good	32.396 \| good	0.224 \| good	20.983 \| good	0.657 \| good
2025-06-04T14:00:00.000Z	66 \| moderate	16.828 \| fine	74.329 \| fine	31.997 \| good	0.64 \| good	5.046 \| good	0.243 \| good
2025-06-04T15:00:00.000Z	34 \| good	6.077 \| good	27.315 \| good	36.97 \| good	0.248 \| good	3.455 \| good	0.196 \| good
2025-06-04T16:00:00.000Z	75 \| moderate	22.193 \| fine	97.184 \| fine	36.734 \| good	0.334 \| good	2.43 \| good	0.196 \| good
2025-06-04T17:00:00.000Z	119 \| sensitive	43.052 \| moderate	192.362 \| moderate	33.487 \| good	0.353 \| good	2.665 \| good	0.199 \| good
2025-06-04T18:00:00.000Z	128 \| sensitive	46.309 \| moderate	208.697 \| moderate	32.642 \| good	0.372 \| good	2.9 \| good	0.202 \| good
2025-06-04T19:00:00.000Z	124 \| sensitive	44.691 \| moderate	200.829 \| moderate	36.607 \| good	0.479 \| good	2.494 \| good	0.202 \| good
2025-06-04T20:00:00.000Z	122 \| sensitive	43.584 \| moderate	194.88 \| moderate	39.481 \| good	0.504 \| good	2.823 \| good	0.207 \| good
2025-06-04T21:00:00.000Z	121 \| sensitive	43.495 \| moderate	194.826 \| moderate	44.19 \| good	0.53 \| good	3.153 \| good	0.212 \| good
2025-06-04T22:00:00.000Z	117 \| sensitive	42.158 \| moderate	187.046 \| moderate	46.916 \| good	0.671 \| good	3.704 \| good	0.208 \| good
2025-06-04T23:00:00.000Z	112 \| sensitive	39.882 \| moderate	176.896 \| moderate	53.241 \| good	0.712 \| good	4.185 \| good	0.216 \| good
2025-06-05T00:00:00.000Z	115 \| sensitive	40.757 \| moderate	180.88 \| moderate	53.161 \| good	0.754 \| good	4.666 \| good	0.223 \| good
2025-06-05T01:00:00.000Z	105 \| sensitive	37.283 \| moderate	162.99 \| moderate	46.273 \| good	0.885 \| good	5.326 \| good	0.213 \| good
2025-06-05T02:00:00.000Z	110 \| sensitive	38.854 \| moderate	171.026 \| moderate	43.591 \| good	0.933 \| good	5.62 \| good	0.217 \| good
2025-06-05T03:00:00.000Z	112 \| sensitive	40.153 \| moderate	177.122 \| moderate	39.736 \| good	0.981 \| good	5.913 \| good	0.222 \| good
2025-06-05T04:00:00.000Z	115 \| sensitive	41.021 \| moderate	182.806 \| moderate	35.928 \| good	1.076 \| good	5.541 \| good	0.196 \| good
2025-06-05T05:00:00.000Z	112 \| sensitive	39.503 \| moderate	174.778 \| moderate	32.528 \| good	1.138 \| good	5.678 \| good	0.199 \| good
2025-06-05T06:00:00.000Z	107 \| sensitive	37.985 \| moderate	166.839 \| moderate	31.99 \| good	1.199 \| good	5.815 \| good	0.202 \| good
2025-06-05T07:00:00.000Z	105 \| sensitive	36.8 \| moderate	160.86 \| moderate	31.499 \| good	1.205 \| good	5.474 \| good	0.19 \| good
2025-06-05T08:00:00.000Z	102 \| sensitive	35.843 \| moderate	156.843 \| moderate	30.864 \| good	1.281 \| good	5.586 \| good	0.193 \| good
2025-06-05T09:00:00.000Z	105 \| sensitive	37.084 \| moderate	162.738 \| moderate	26.268 \| good	1.357 \| good	5.697 \| good	0.197 \| good
2025-06-05T10:00:00.000Z	115 \| sensitive	41.003 \| moderate	181.207 \| moderate	24.495 \| good	1.128 \| good	5.039 \| good	0.199 \| good
2025-06-05T11:00:00.000Z	108 \| sensitive	38.373 \| moderate	168.655 \| moderate	25.276 \| good	1.204 \| good	5.19 \| good	0.202 \| good
2025-06-05T12:00:00.000Z	102 \| sensitive	35.894 \| moderate	156.984 \| moderate	29.498 \| good	1.28 \| good	5.34 \| good	0.204 \| good
2025-06-05T13:00:00.000Z	96 \| moderate	32.662 \| fine	140.994 \| fine	33.443 \| good	1.206 \| good	2.615 \| good	0.216 \| good
2025-06-05T14:00:00.000Z	99 \| moderate	34.563 \| fine	149.041 \| fine	37.887 \| good	1.255 \| good	2.688 \| good	0.217 \| good
2025-06-05T15:00:00.000Z	105 \| sensitive	36.803 \| moderate	160.77 \| moderate	42.212 \| good	1.304 \| good	2.761 \| good	0.219 \| good
2025-06-05T16:00:00.000Z	99 \| moderate	34.883 \| fine	150.977 \| fine	49.503 \| good	0.962 \| good	0.898 \| good	0.193 \| good
2025-06-05T17:00:00.000Z	96 \| moderate	32.924 \| fine	142.757 \| fine	55.041 \| fine	0.964 \| good	0.907 \| good	0.194 \| good
2025-06-05T18:00:00.000Z	88 \| moderate	28.916 \| fine	124.871 \| fine	59.238 \| fine	0.967 \| good	0.916 \| good	0.195 \| good
2025-06-05T19:00:00.000Z	79 \| moderate	24.166 \| fine	105.024 \| fine	61.859 \| fine	0.786 \| good	0.881 \| good	0.181 \| good
2025-06-05T20:00:00.000Z	79 \| moderate	24.486 \| fine	106.932 \| fine	61.083 \| fine	0.771 \| good	0.898 \| good	0.182 \| good
2025-06-05T21:00:00.000Z	75 \| moderate	22.102 \| fine	96.957 \| fine	60.538 \| fine	0.757 \| good	0.915 \| good	0.182 \| good
2025-06-05T22:00:00.000Z	73 \| moderate	21.477 \| fine	94.957 \| fine	60.601 \| fine	0.727 \| good	3.203 \| good	0.198 \| good
2025-06-05T23:00:00.000Z	82 \| moderate	26.446 \| fine	115.12 \| fine	58.46 \| fine	0.73 \| good	3.259 \| good	0.198 \| good
2025-06-06T00:00:00.000Z	105 \| sensitive	36.844 \| moderate	161.018 \| moderate	55.125 \| fine	0.733 \| good	3.316 \| good	0.199 \| good
2025-06-06T01:00:00.000Z	115 \| sensitive	40.751 \| moderate	180.897 \| moderate	48.47 \| good	0.737 \| good	5.673 \| good	0.221 \| good
2025-06-06T02:00:00.000Z	128 \| sensitive	46.362 \| moderate	208.842 \| moderate	42.629 \| good	0.794 \| good	5.841 \| good	0.223 \| good
2025-06-06T03:00:00.000Z	137 \| sensitive	49.837 \| moderate	224.942 \| moderate	37.404 \| good	0.85 \| good	6.008 \| good	0.225 \| good
2025-06-06T04:00:00.000Z	147 \| sensitive	53.84 \| moderate	244.995 \| moderate	33.638 \| good	1.107 \| good	6.625 \| good	0.236 \| good
2025-06-06T05:00:00.000Z	151 \| unhealthy	55.712 \| poor	254.875 \| moderate	31.46 \| good	1.175 \| good	6.737 \| good	0.238 \| good
2025-06-06T06:00:00.000Z	149 \| sensitive	54.815 \| moderate	250.902 \| moderate	31.916 \| good	1.243 \| good	6.849 \| good	0.24 \| good
2025-06-06T07:00:00.000Z	145 \| sensitive	53.318 \| moderate	242.971 \| moderate	28.787 \| good	1.229 \| good	8.16 \| good	0.248 \| good
2025-06-06T08:00:00.000Z	145 \| sensitive	53.226 \| moderate	242.879 \| moderate	25.423 \| good	1.27 \| good	8.364 \| good	0.251 \| good
2025-06-06T09:00:00.000Z	147 \| sensitive	53.795 \| moderate	245.003 \| moderate	21.807 \| good	1.311 \| good	8.569 \| good	0.253 \| good
2025-06-06T10:00:00.000Z	144 \| sensitive	53.152 \| moderate	241.185 \| moderate	21.971 \| good	1.158 \| good	6.989 \| good	0.255 \| good
2025-06-06T11:00:00.000Z	132 \| sensitive	48.039 \| moderate	216.866 \| moderate	18.934 \| good	1.184 \| good	7.084 \| good	0.257 \| good
2025-06-06T12:00:00.000Z	117 \| sensitive	41.845 \| moderate	187.052 \| moderate	24.654 \| good	1.209 \| good	7.179 \| good	0.259 \| good
2025-06-06T13:00:00.000Z	97 \| moderate	33.816 \| fine	145.26 \| fine	26.157 \| good	1.417 \| good	3.929 \| good	0.23 \| good
2025-06-06T14:00:00.000Z	84 \| moderate	27.397 \| fine	119.036 \| fine	34.875 \| good	1.389 \| good	3.985 \| good	0.23 \| good

Current air quality index in Illinois, USA today

Major air pollutants in Illinois, USA

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Illinois, USA air quality forecast and history

Empower business decisions with accurate air quality data

Real-time air quality map: Monitor AQI near Illinois, USA

Air quality in cities of Illinois, USA

Air quality in nearby states

Indiana, USA

Iowa, USA

Wisconsin, USA

Missouri, USA

Michigan, USA

Kentucky, USA

How accurate is Illinois, USA air quality data?

Air quality levels in US

Frequently asked questions

How frequently does the air quality data for Illinois, USA get updated?

What time in the past 24 hours saw the poorest air quality in Illinois, USA?

When was air quality in Illinois, USA the best over the past 24 hours?

What is the air quality in Illinois, USA right now?

What pollutant is most frequently found in Illinois, USA?

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

What is the PM2.5 concentration in Illinois, USA right now?

What is the current level of PM10 in Illinois, USA?

What is the current level of carbon monoxide (CO) in Illinois, USA?

What is the current level of sulfur dioxide (SO2) in Illinois, USA?

What is the current level of ozone (O3) in Illinois, USA?

What is the current level of nitrogen dioxide (NO2) in Illinois, USA?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the PM_2.5 concentration in Illinois, USA right now?

What is the current level of PM₁₀ in Illinois, USA?

What is the current level of sulfur dioxide (SO₂) in Illinois, USA?

What is the current level of ozone (O₃) in Illinois, USA?

What is the current level of nitrogen dioxide (NO₂) in Illinois, USA?