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

Currently, Westchester, Illinois has a sulfur dioxide (SO2) concentration of 2.239 ppb.

What is the ozone (O3) level in Westchester, Illinois at the moment?

The current ozone (O3) level in Westchester, Illinois at the moment is 46.456 ppm.

What is the nitrogen dioxide (NO2) level in Westchester, Illinois at the moment?

Nitrogen dioxide (NO2) level in Westchester, Illinois at the moment is 3.934 ppb.

Real-time air quality index in Westchester, Illinois today

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

Stay updated with real-time air quality in Westchester, 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

Westchester, Illinois

Last updated: ... (Local time)

Major air pollutants in Westchester, Illinois

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

26.80 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

118.28 μg/m³

155

255

425

605+

Ozone (O₃)

46.46 ppb

201

201+

Sulfur Dioxide (SO₂)

2.24 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

3.93 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.24 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Looks like we don't have this data available right now

Please contact us for custom requests

Westchester, Illinois

Scroll To Air Quality Map

Track live Westchester, Illinois air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-05T20:00:00.000Z	129 \| sensitive	46.508 \| moderate	110.296 \| fine	48.921 \| good	0.966 \| good	3.088 \| good	0.294 \| good
2025-06-05T21:00:00.000Z	115 \| sensitive	41.065 \| moderate	69.938 \| fine	53.411 \| good	0.955 \| good	3.344 \| good	0.266 \| good
2025-06-05T22:00:00.000Z	142 \| sensitive	51.53 \| moderate	156.231 \| moderate	53.454 \| good	0.477 \| good	4.544 \| good	0.266 \| good
2025-06-05T23:00:00.000Z	137 \| sensitive	50.326 \| moderate	165.286 \| moderate	53.691 \| good	0.41 \| good	6.059 \| good	0.245 \| good
2025-06-06T00:00:00.000Z	147 \| sensitive	53.957 \| moderate	245.865 \| moderate	54.973 \| good	0.797 \| good	5.622 \| good	0.259 \| good
2025-06-06T01:00:00.000Z	117 \| sensitive	42.197 \| moderate	163.331 \| moderate	51.12 \| good	1.201 \| good	7.389 \| good	0.259 \| good
2025-06-06T02:00:00.000Z	139 \| sensitive	49.821 \| moderate	231.498 \| moderate	49.953 \| good	2.221 \| good	10.125 \| good	0.273 \| good
2025-06-06T03:00:00.000Z	124 \| sensitive	44.785 \| moderate	178.539 \| moderate	41.558 \| good	2.166 \| good	13.145 \| good	0.287 \| good
2025-06-06T04:00:00.000Z	127 \| sensitive	45.694 \| moderate	164.151 \| moderate	30.105 \| good	2.348 \| good	3.486 \| good	0.273 \| good
2025-06-06T05:00:00.000Z	97 \| moderate	34.148 \| fine	86.072 \| fine	32.724 \| good	1.109 \| good	5.135 \| good	0.325 \| good
2025-06-06T06:00:00.000Z	119 \| sensitive	43.27 \| moderate	180.845 \| moderate	35.416 \| good	0.89 \| good	6.924 \| good	0.339 \| good
2025-06-06T07:00:00.000Z	96 \| moderate	32.952 \| fine	118.995 \| fine	32.088 \| good	0.402 \| good	9.377 \| good	0.311 \| good
2025-06-06T08:00:00.000Z	107 \| sensitive	38.049 \| moderate	162.66 \| moderate	37.612 \| good	0.33 \| good	9.08 \| good	0.325 \| good
2025-06-06T09:00:00.000Z	97 \| moderate	33.589 \| fine	127.633 \| fine	29.085 \| good	0.364 \| good	12.442 \| good	0.325 \| good
2025-06-06T10:00:00.000Z	97 \| moderate	33.981 \| fine	117.79 \| fine	42.019 \| good	1.343 \| good	12.525 \| good	0.325 \| good
2025-06-06T11:00:00.000Z	99 \| moderate	35.025 \| fine	147.349 \| fine	38.614 \| good	0.418 \| good	13.458 \| good	0.356 \| good
2025-06-06T12:00:00.000Z	96 \| moderate	33.124 \| fine	123.935 \| fine	29.348 \| good	0.388 \| good	8.751 \| good	0.359 \| good
2025-06-06T13:00:00.000Z	102 \| sensitive	33.878 \| fine	158.284 \| moderate	32.32 \| good	0.394 \| good	6.655 \| good	0.328 \| good
2025-06-06T14:00:00.000Z	102 \| sensitive	36.23 \| moderate	135.307 \| fine	28.285 \| good	0.386 \| good	14.731 \| good	0.478 \| good
2025-06-06T15:00:00.000Z	97 \| moderate	33.583 \| fine	113.063 \| fine	37.746 \| good	0.47 \| good	8.044 \| good	0.359 \| good
2025-06-06T16:00:00.000Z	96 \| moderate	32.598 \| fine	128.988 \| fine	33.968 \| good	0.902 \| good	2.966 \| good	0.277 \| good
2025-06-06T17:00:00.000Z	92 \| moderate	31.372 \| fine	114.958 \| fine	43.094 \| good	0.763 \| good	3.046 \| good	0.263 \| good
2025-06-06T18:00:00.000Z	96 \| moderate	33.283 \| fine	140.314 \| fine	49.837 \| good	0.502 \| good	2.075 \| good	0.263 \| good
2025-06-06T19:00:00.000Z	94 \| moderate	31.554 \| fine	113.889 \| fine	50.472 \| good	1.135 \| good	2.593 \| good	0.235 \| good
2025-06-06T20:00:00.000Z	113 \| sensitive	38.495 \| moderate	178.679 \| moderate	54.632 \| good	0.585 \| good	1.97 \| good	0.235 \| good
2025-06-06T21:00:00.000Z	110 \| sensitive	38.95 \| moderate	160.441 \| moderate	53.216 \| good	0.5 \| good	1.847 \| good	0.235 \| good
2025-06-06T22:00:00.000Z	94 \| moderate	32.447 \| fine	118.906 \| fine	59.732 \| fine	0.494 \| good	4.318 \| good	0.214 \| good
2025-06-06T23:00:00.000Z	84 \| moderate	26.773 \| fine	103.639 \| fine	59.118 \| fine	0.534 \| good	7.681 \| good	0.214 \| good
2025-06-07T00:00:00.000Z	90 \| moderate	30.151 \| fine	98.948 \| fine	60.38 \| fine	0.569 \| good	6.344 \| good	0.245 \| good
2025-06-07T01:00:00.000Z	100 \| moderate	33.548 \| fine	154.456 \| fine	61.018 \| fine	1.598 \| good	9.428 \| good	0.245 \| good
2025-06-07T02:00:00.000Z	86 \| moderate	28.067 \| fine	114.973 \| fine	56.745 \| fine	1.18 \| good	11.734 \| good	0.245 \| good
2025-06-07T03:00:00.000Z	90 \| moderate	30.11 \| fine	131.741 \| fine	47.408 \| good	0.932 \| good	12.013 \| good	0.273 \| good
2025-06-07T04:00:00.000Z	90 \| moderate	29.716 \| fine	126.569 \| fine	47.685 \| good	0.958 \| good	8.325 \| good	0.259 \| good
2025-06-07T05:00:00.000Z	92 \| moderate	31.017 \| fine	127.212 \| fine	43.057 \| good	0.445 \| good	6.568 \| good	0.259 \| good
2025-06-07T06:00:00.000Z	91 \| moderate	28.964 \| fine	136.058 \| fine	42.353 \| good	0.377 \| good	6.518 \| good	0.259 \| good
2025-06-07T07:00:00.000Z	84 \| moderate	26.703 \| fine	99.89 \| fine	47.395 \| good	0.334 \| good	5.635 \| good	0.259 \| good
2025-06-07T08:00:00.000Z	84 \| moderate	27.207 \| fine	117.577 \| fine	43.707 \| good	0.294 \| good	5.504 \| good	0.249 \| good
2025-06-07T09:00:00.000Z	82 \| moderate	25.954 \| fine	101.28 \| fine	38.456 \| good	0.28 \| good	6.602 \| good	0.269 \| good
2025-06-07T10:00:00.000Z	83 \| moderate	26.026 \| fine	120.437 \| fine	38.216 \| good	0.257 \| good	4.064 \| good	0.269 \| good
2025-06-07T11:00:00.000Z	77 \| moderate	22.965 \| fine	95.935 \| fine	39.64 \| good	0.306 \| good	3.723 \| good	0.269 \| good
2025-06-07T12:00:00.000Z	75 \| moderate	21.577 \| fine	69.251 \| fine	32.49 \| good	0.321 \| good	2.925 \| good	0.3 \| good
2025-06-07T13:00:00.000Z	75 \| moderate	22.22 \| fine	95.867 \| fine	37.808 \| good	0.44 \| good	5.059 \| good	0.249 \| good
2025-06-07T14:00:00.000Z	79 \| moderate	23.815 \| fine	83.497 \| fine	41.105 \| good	0.594 \| good	4.242 \| good	0.234 \| good
2025-06-07T15:00:00.000Z	81 \| moderate	24.248 \| fine	114.605 \| fine	42.929 \| good	1.302 \| good	4.631 \| good	0.234 \| good
2025-06-07T16:00:00.000Z	90 \| moderate	29.096 \| fine	132.822 \| fine	44.125 \| good	1.624 \| good	1.487 \| good	0.234 \| good
2025-06-07T17:00:00.000Z	102 \| sensitive	35.916 \| moderate	116.647 \| fine	47.534 \| good	2.206 \| good	4.024 \| good	0.255 \| good
2025-06-07T18:00:00.000Z	106 \| sensitive	31.553 \| fine	164.768 \| moderate	48.105 \| good	1.417 \| good	8.948 \| good	0.22 \| good
2025-06-07T18:00:00.000Z	84 \| moderate	26.796 \| fine	118.28 \| fine	46.456 \| good	2.239 \| good	3.934 \| good	0.241 \| good
2025-06-07T19:00:00.000Z	96 \| moderate	32.804 \| fine	142.125 \| fine	57.245 \| fine	1.179 \| good	4.274 \| good	0.204 \| good
2025-06-07T20:00:00.000Z	92 \| moderate	30.831 \| fine	133.083 \| fine	56.07 \| fine	1.188 \| good	4.984 \| good	0.209 \| good
2025-06-07T21:00:00.000Z	82 \| moderate	25.651 \| fine	111.746 \| fine	52.488 \| good	1.197 \| good	5.694 \| good	0.214 \| good
2025-06-07T22:00:00.000Z	73 \| moderate	20.989 \| fine	92.26 \| fine	49.728 \| good	1.414 \| good	11.586 \| good	0.251 \| good
2025-06-07T23:00:00.000Z	67 \| moderate	18.087 \| fine	80.147 \| fine	49.279 \| good	1.328 \| good	13.16 \| good	0.261 \| good
2025-06-08T00:00:00.000Z	64 \| moderate	16.403 \| fine	72.678 \| fine	35.502 \| good	1.241 \| good	14.734 \| good	0.272 \| good
2025-06-08T01:00:00.000Z	62 \| moderate	15.2 \| fine	68.1 \| fine	29.857 \| good	1.388 \| good	11.053 \| good	0.231 \| good
2025-06-08T02:00:00.000Z	58 \| moderate	12.567 \| fine	56.168 \| fine	27.929 \| good	1.285 \| good	10.968 \| good	0.229 \| good
2025-06-08T03:00:00.000Z	44 \| good	8.211 \| good	35.976 \| good	30.377 \| good	1.182 \| good	10.883 \| good	0.227 \| good
2025-06-08T04:00:00.000Z	33 \| good	5.763 \| good	24.991 \| good	28.201 \| good	1.253 \| good	7.79 \| good	0.199 \| good
2025-06-08T05:00:00.000Z	33 \| good	5.954 \| good	26.083 \| good	27.898 \| good	1.179 \| good	7.366 \| good	0.195 \| good
2025-06-08T06:00:00.000Z	33 \| good	6.497 \| good	29.039 \| good	31.123 \| good	1.105 \| good	6.942 \| good	0.191 \| good
2025-06-08T07:00:00.000Z	38 \| good	7.235 \| good	31.687 \| good	32.703 \| good	1.283 \| good	8.132 \| good	0.191 \| good
2025-06-08T08:00:00.000Z	38 \| good	7.277 \| good	31.994 \| good	32.91 \| good	1.251 \| good	7.522 \| good	0.187 \| good
2025-06-08T09:00:00.000Z	44 \| good	7.85 \| good	34.458 \| good	30.979 \| good	1.218 \| good	6.912 \| good	0.184 \| good
2025-06-08T10:00:00.000Z	49 \| good	9.308 \| good	41.553 \| good	28.056 \| good	1.557 \| good	12.864 \| good	0.224 \| good
2025-06-08T11:00:00.000Z	52 \| moderate	10.393 \| good	46.075 \| good	27.419 \| good	1.564 \| good	13.437 \| good	0.227 \| good
2025-06-08T12:00:00.000Z	60 \| moderate	14.077 \| fine	62.939 \| fine	26.844 \| good	1.572 \| good	14.011 \| good	0.229 \| good
2025-06-08T13:00:00.000Z	62 \| moderate	15.062 \| fine	67.225 \| fine	29.692 \| good	2.653 \| good	5.311 \| good	0.209 \| good
2025-06-08T14:00:00.000Z	64 \| moderate	15.525 \| fine	69.146 \| fine	38.885 \| good	2.86 \| good	6.124 \| good	0.215 \| good
2025-06-08T15:00:00.000Z	56 \| moderate	11.94 \| good	53.284 \| good	50.189 \| good	3.068 \| good	6.938 \| good	0.22 \| good
2025-06-08T16:00:00.000Z	58 \| moderate	10.137 \| good	45.138 \| good	57.052 \| fine	1.369 \| good	1.565 \| good	0.202 \| good
2025-06-08T17:00:00.000Z	71 \| moderate	11.414 \| good	50.326 \| good	61.226 \| fine	1.538 \| good	1.884 \| good	0.202 \| good
2025-06-08T18:00:00.000Z	67 \| moderate	12.896 \| fine	58.304 \| fine	60.464 \| fine	1.708 \| good	2.204 \| good	0.203 \| good
2025-06-08T19:00:00.000Z	62 \| moderate	14.791 \| fine	66.419 \| fine	52.863 \| good	0.661 \| good	1.459 \| good	0.195 \| good
2025-06-08T20:00:00.000Z	64 \| moderate	15.859 \| fine	70.594 \| fine	48.085 \| good	0.776 \| good	1.687 \| good	0.196 \| good
2025-06-08T21:00:00.000Z	62 \| moderate	15.065 \| fine	67.321 \| fine	47.374 \| good	0.891 \| good	1.916 \| good	0.197 \| good
2025-06-08T22:00:00.000Z	62 \| moderate	14.673 \| fine	65.688 \| fine	45.307 \| good	0.499 \| good	3.399 \| good	0.185 \| good
2025-06-08T23:00:00.000Z	56 \| moderate	11.76 \| good	52.698 \| good	45.69 \| good	0.638 \| good	4.136 \| good	0.193 \| good
2025-06-09T00:00:00.000Z	38 \| good	3.372 \| good	14.491 \| good	40.864 \| good	0.776 \| good	4.873 \| good	0.201 \| good
2025-06-09T01:00:00.000Z	38 \| good	4.356 \| good	18.844 \| good	41.049 \| good	0.689 \| good	8.877 \| good	0.199 \| good
2025-06-09T02:00:00.000Z	38 \| good	6.588 \| good	29.076 \| good	34.41 \| good	0.828 \| good	9.859 \| good	0.207 \| good
2025-06-09T03:00:00.000Z	44 \| good	7.53 \| good	33.113 \| good	30.005 \| good	0.966 \| good	10.841 \| good	0.214 \| good
2025-06-09T04:00:00.000Z	38 \| good	6.871 \| good	30.399 \| good	27.528 \| good	0.849 \| good	13.908 \| good	0.218 \| good
2025-06-09T05:00:00.000Z	44 \| good	7.894 \| good	34.747 \| good	24.924 \| good	1.063 \| good	15.691 \| good	0.231 \| good
2025-06-09T06:00:00.000Z	52 \| moderate	10.394 \| good	45.812 \| good	23.71 \| good	1.277 \| good	17.475 \| good	0.244 \| good
2025-06-09T07:00:00.000Z	54 \| moderate	10.963 \| good	48.941 \| good	23.259 \| good	0.711 \| good	8.555 \| good	0.163 \| good
2025-06-09T08:00:00.000Z	54 \| moderate	11.44 \| good	51.13 \| good	22.426 \| good	0.91 \| good	9.706 \| good	0.173 \| good
2025-06-09T09:00:00.000Z	56 \| moderate	11.689 \| good	52.122 \| good	22.84 \| good	1.109 \| good	10.857 \| good	0.182 \| good
2025-06-09T10:00:00.000Z	49 \| good	8.737 \| good	38.535 \| good	16.648 \| good	0.675 \| good	6.363 \| good	0.152 \| good
2025-06-09T11:00:00.000Z	38 \| good	7.013 \| good	30.939 \| good	20.845 \| good	0.822 \| good	6.983 \| good	0.155 \| good
2025-06-09T12:00:00.000Z	22 \| good	4.233 \| good	18.297 \| good	22.872 \| good	0.969 \| good	7.603 \| good	0.159 \| good
2025-06-09T13:00:00.000Z	27 \| good	5.15 \| good	22.328 \| good	24.758 \| good	0.963 \| good	3.735 \| good	0.157 \| good
2025-06-09T14:00:00.000Z	52 \| moderate	10.164 \| good	45.197 \| good	29.915 \| good	1.167 \| good	4.408 \| good	0.161 \| good
2025-06-09T15:00:00.000Z	49 \| good	8.954 \| good	39.723 \| good	36.873 \| good	1.372 \| good	5.081 \| good	0.165 \| good
2025-06-09T16:00:00.000Z	52 \| moderate	9.892 \| good	43.771 \| good	41.631 \| good	0.418 \| good	1.092 \| good	0.153 \| good
2025-06-09T17:00:00.000Z	54 \| moderate	11.149 \| good	49.56 \| good	43.621 \| good	0.493 \| good	1.305 \| good	0.154 \| good
2025-06-09T18:00:00.000Z	62 \| moderate	14.623 \| fine	65.453 \| fine	42.626 \| good	0.567 \| good	1.519 \| good	0.155 \| good

Westchester

Get reliable air quality data to drive your business

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

0.24ppm

How accurate is Illinois, USA air quality data?

Air quality and pollutant data for Illinois, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.

Source: Ambee Data Sources

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 often is air quality information updated for Westchester, Illinois?

The air quality information for Westchester, Illinois is updated every hour for accuracy.

What time in the last 24 hours was the air quality in Westchester, Illinois at its worst?

In the past 24 hours, the air quality in Westchester, Illinois was at its worst at 11:00:00 on 2025-06-06.

When did Westchester, Illinois experience the best air quality in the last 24 hours?

In the last 24 hours, the best air quality in Westchester, Illinois was observed at 12:00:00 on 2025-06-07.

What is the AQI in Westchester, Illinois right now?

As of now, the AQI in Westchester, Illinois is 84, indicating Moderate conditions.

What is the most common type of pollution in Westchester, Illinois?

Westchester, Illinois air has the highest levels of PM2.5.

What should I do in case of poor air quality in Westchester, Illinois?

Poor air quality in Westchester, Illinois means it's advisable to stay indoors and wear a mask for your protection.

What is the PM_2.5 level in Westchester, Illinois at the moment?

PM_2.5 levels in Westchester, Illinois are currently 26.796 μg/m³.

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

The PM₁₀ concentration in Westchester, Illinois is 118.28 μg/m³ at the moment.

What is the carbon monoxide (CO) level in Westchester, Illinois at the moment?

The current carbon monoxide (CO) concentration in Westchester, Illinois is 0.241 ppm.

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

Currently, Westchester, Illinois has a sulfur dioxide (SO₂) concentration of 2.239 ppb.

What is the ozone (O₃) level in Westchester, Illinois at the moment?

The current ozone (O₃) level in Westchester, Illinois at the moment is 46.456 ppm.

What is the nitrogen dioxide (NO₂) level in Westchester, Illinois at the moment?

Nitrogen dioxide (NO₂) level in Westchester, Illinois at the moment is 3.934 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions

Refund Policy

Terms & Conditions

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-05T20:00:00.000Z	129 \| sensitive	46.508 \| moderate	110.296 \| fine	48.921 \| good	0.966 \| good	3.088 \| good	0.294 \| good
2025-06-05T21:00:00.000Z	115 \| sensitive	41.065 \| moderate	69.938 \| fine	53.411 \| good	0.955 \| good	3.344 \| good	0.266 \| good
2025-06-05T22:00:00.000Z	142 \| sensitive	51.53 \| moderate	156.231 \| moderate	53.454 \| good	0.477 \| good	4.544 \| good	0.266 \| good
2025-06-05T23:00:00.000Z	137 \| sensitive	50.326 \| moderate	165.286 \| moderate	53.691 \| good	0.41 \| good	6.059 \| good	0.245 \| good
2025-06-06T00:00:00.000Z	147 \| sensitive	53.957 \| moderate	245.865 \| moderate	54.973 \| good	0.797 \| good	5.622 \| good	0.259 \| good
2025-06-06T01:00:00.000Z	117 \| sensitive	42.197 \| moderate	163.331 \| moderate	51.12 \| good	1.201 \| good	7.389 \| good	0.259 \| good
2025-06-06T02:00:00.000Z	139 \| sensitive	49.821 \| moderate	231.498 \| moderate	49.953 \| good	2.221 \| good	10.125 \| good	0.273 \| good
2025-06-06T03:00:00.000Z	124 \| sensitive	44.785 \| moderate	178.539 \| moderate	41.558 \| good	2.166 \| good	13.145 \| good	0.287 \| good
2025-06-06T04:00:00.000Z	127 \| sensitive	45.694 \| moderate	164.151 \| moderate	30.105 \| good	2.348 \| good	3.486 \| good	0.273 \| good
2025-06-06T05:00:00.000Z	97 \| moderate	34.148 \| fine	86.072 \| fine	32.724 \| good	1.109 \| good	5.135 \| good	0.325 \| good
2025-06-06T06:00:00.000Z	119 \| sensitive	43.27 \| moderate	180.845 \| moderate	35.416 \| good	0.89 \| good	6.924 \| good	0.339 \| good
2025-06-06T07:00:00.000Z	96 \| moderate	32.952 \| fine	118.995 \| fine	32.088 \| good	0.402 \| good	9.377 \| good	0.311 \| good
2025-06-06T08:00:00.000Z	107 \| sensitive	38.049 \| moderate	162.66 \| moderate	37.612 \| good	0.33 \| good	9.08 \| good	0.325 \| good
2025-06-06T09:00:00.000Z	97 \| moderate	33.589 \| fine	127.633 \| fine	29.085 \| good	0.364 \| good	12.442 \| good	0.325 \| good
2025-06-06T10:00:00.000Z	97 \| moderate	33.981 \| fine	117.79 \| fine	42.019 \| good	1.343 \| good	12.525 \| good	0.325 \| good
2025-06-06T11:00:00.000Z	99 \| moderate	35.025 \| fine	147.349 \| fine	38.614 \| good	0.418 \| good	13.458 \| good	0.356 \| good
2025-06-06T12:00:00.000Z	96 \| moderate	33.124 \| fine	123.935 \| fine	29.348 \| good	0.388 \| good	8.751 \| good	0.359 \| good
2025-06-06T13:00:00.000Z	102 \| sensitive	33.878 \| fine	158.284 \| moderate	32.32 \| good	0.394 \| good	6.655 \| good	0.328 \| good
2025-06-06T14:00:00.000Z	102 \| sensitive	36.23 \| moderate	135.307 \| fine	28.285 \| good	0.386 \| good	14.731 \| good	0.478 \| good
2025-06-06T15:00:00.000Z	97 \| moderate	33.583 \| fine	113.063 \| fine	37.746 \| good	0.47 \| good	8.044 \| good	0.359 \| good
2025-06-06T16:00:00.000Z	96 \| moderate	32.598 \| fine	128.988 \| fine	33.968 \| good	0.902 \| good	2.966 \| good	0.277 \| good
2025-06-06T17:00:00.000Z	92 \| moderate	31.372 \| fine	114.958 \| fine	43.094 \| good	0.763 \| good	3.046 \| good	0.263 \| good
2025-06-06T18:00:00.000Z	96 \| moderate	33.283 \| fine	140.314 \| fine	49.837 \| good	0.502 \| good	2.075 \| good	0.263 \| good
2025-06-06T19:00:00.000Z	94 \| moderate	31.554 \| fine	113.889 \| fine	50.472 \| good	1.135 \| good	2.593 \| good	0.235 \| good
2025-06-06T20:00:00.000Z	113 \| sensitive	38.495 \| moderate	178.679 \| moderate	54.632 \| good	0.585 \| good	1.97 \| good	0.235 \| good
2025-06-06T21:00:00.000Z	110 \| sensitive	38.95 \| moderate	160.441 \| moderate	53.216 \| good	0.5 \| good	1.847 \| good	0.235 \| good
2025-06-06T22:00:00.000Z	94 \| moderate	32.447 \| fine	118.906 \| fine	59.732 \| fine	0.494 \| good	4.318 \| good	0.214 \| good
2025-06-06T23:00:00.000Z	84 \| moderate	26.773 \| fine	103.639 \| fine	59.118 \| fine	0.534 \| good	7.681 \| good	0.214 \| good
2025-06-07T00:00:00.000Z	90 \| moderate	30.151 \| fine	98.948 \| fine	60.38 \| fine	0.569 \| good	6.344 \| good	0.245 \| good
2025-06-07T01:00:00.000Z	100 \| moderate	33.548 \| fine	154.456 \| fine	61.018 \| fine	1.598 \| good	9.428 \| good	0.245 \| good
2025-06-07T02:00:00.000Z	86 \| moderate	28.067 \| fine	114.973 \| fine	56.745 \| fine	1.18 \| good	11.734 \| good	0.245 \| good
2025-06-07T03:00:00.000Z	90 \| moderate	30.11 \| fine	131.741 \| fine	47.408 \| good	0.932 \| good	12.013 \| good	0.273 \| good
2025-06-07T04:00:00.000Z	90 \| moderate	29.716 \| fine	126.569 \| fine	47.685 \| good	0.958 \| good	8.325 \| good	0.259 \| good
2025-06-07T05:00:00.000Z	92 \| moderate	31.017 \| fine	127.212 \| fine	43.057 \| good	0.445 \| good	6.568 \| good	0.259 \| good
2025-06-07T06:00:00.000Z	91 \| moderate	28.964 \| fine	136.058 \| fine	42.353 \| good	0.377 \| good	6.518 \| good	0.259 \| good
2025-06-07T07:00:00.000Z	84 \| moderate	26.703 \| fine	99.89 \| fine	47.395 \| good	0.334 \| good	5.635 \| good	0.259 \| good
2025-06-07T08:00:00.000Z	84 \| moderate	27.207 \| fine	117.577 \| fine	43.707 \| good	0.294 \| good	5.504 \| good	0.249 \| good
2025-06-07T09:00:00.000Z	82 \| moderate	25.954 \| fine	101.28 \| fine	38.456 \| good	0.28 \| good	6.602 \| good	0.269 \| good
2025-06-07T10:00:00.000Z	83 \| moderate	26.026 \| fine	120.437 \| fine	38.216 \| good	0.257 \| good	4.064 \| good	0.269 \| good
2025-06-07T11:00:00.000Z	77 \| moderate	22.965 \| fine	95.935 \| fine	39.64 \| good	0.306 \| good	3.723 \| good	0.269 \| good
2025-06-07T12:00:00.000Z	75 \| moderate	21.577 \| fine	69.251 \| fine	32.49 \| good	0.321 \| good	2.925 \| good	0.3 \| good
2025-06-07T13:00:00.000Z	75 \| moderate	22.22 \| fine	95.867 \| fine	37.808 \| good	0.44 \| good	5.059 \| good	0.249 \| good
2025-06-07T14:00:00.000Z	79 \| moderate	23.815 \| fine	83.497 \| fine	41.105 \| good	0.594 \| good	4.242 \| good	0.234 \| good
2025-06-07T15:00:00.000Z	81 \| moderate	24.248 \| fine	114.605 \| fine	42.929 \| good	1.302 \| good	4.631 \| good	0.234 \| good
2025-06-07T16:00:00.000Z	90 \| moderate	29.096 \| fine	132.822 \| fine	44.125 \| good	1.624 \| good	1.487 \| good	0.234 \| good
2025-06-07T17:00:00.000Z	102 \| sensitive	35.916 \| moderate	116.647 \| fine	47.534 \| good	2.206 \| good	4.024 \| good	0.255 \| good
2025-06-07T18:00:00.000Z	106 \| sensitive	31.553 \| fine	164.768 \| moderate	48.105 \| good	1.417 \| good	8.948 \| good	0.22 \| good
2025-06-07T18:00:00.000Z	84 \| moderate	26.796 \| fine	118.28 \| fine	46.456 \| good	2.239 \| good	3.934 \| good	0.241 \| good
2025-06-07T19:00:00.000Z	96 \| moderate	32.804 \| fine	142.125 \| fine	57.245 \| fine	1.179 \| good	4.274 \| good	0.204 \| good
2025-06-07T20:00:00.000Z	92 \| moderate	30.831 \| fine	133.083 \| fine	56.07 \| fine	1.188 \| good	4.984 \| good	0.209 \| good
2025-06-07T21:00:00.000Z	82 \| moderate	25.651 \| fine	111.746 \| fine	52.488 \| good	1.197 \| good	5.694 \| good	0.214 \| good
2025-06-07T22:00:00.000Z	73 \| moderate	20.989 \| fine	92.26 \| fine	49.728 \| good	1.414 \| good	11.586 \| good	0.251 \| good
2025-06-07T23:00:00.000Z	67 \| moderate	18.087 \| fine	80.147 \| fine	49.279 \| good	1.328 \| good	13.16 \| good	0.261 \| good
2025-06-08T00:00:00.000Z	64 \| moderate	16.403 \| fine	72.678 \| fine	35.502 \| good	1.241 \| good	14.734 \| good	0.272 \| good
2025-06-08T01:00:00.000Z	62 \| moderate	15.2 \| fine	68.1 \| fine	29.857 \| good	1.388 \| good	11.053 \| good	0.231 \| good
2025-06-08T02:00:00.000Z	58 \| moderate	12.567 \| fine	56.168 \| fine	27.929 \| good	1.285 \| good	10.968 \| good	0.229 \| good
2025-06-08T03:00:00.000Z	44 \| good	8.211 \| good	35.976 \| good	30.377 \| good	1.182 \| good	10.883 \| good	0.227 \| good
2025-06-08T04:00:00.000Z	33 \| good	5.763 \| good	24.991 \| good	28.201 \| good	1.253 \| good	7.79 \| good	0.199 \| good
2025-06-08T05:00:00.000Z	33 \| good	5.954 \| good	26.083 \| good	27.898 \| good	1.179 \| good	7.366 \| good	0.195 \| good
2025-06-08T06:00:00.000Z	33 \| good	6.497 \| good	29.039 \| good	31.123 \| good	1.105 \| good	6.942 \| good	0.191 \| good
2025-06-08T07:00:00.000Z	38 \| good	7.235 \| good	31.687 \| good	32.703 \| good	1.283 \| good	8.132 \| good	0.191 \| good
2025-06-08T08:00:00.000Z	38 \| good	7.277 \| good	31.994 \| good	32.91 \| good	1.251 \| good	7.522 \| good	0.187 \| good
2025-06-08T09:00:00.000Z	44 \| good	7.85 \| good	34.458 \| good	30.979 \| good	1.218 \| good	6.912 \| good	0.184 \| good
2025-06-08T10:00:00.000Z	49 \| good	9.308 \| good	41.553 \| good	28.056 \| good	1.557 \| good	12.864 \| good	0.224 \| good
2025-06-08T11:00:00.000Z	52 \| moderate	10.393 \| good	46.075 \| good	27.419 \| good	1.564 \| good	13.437 \| good	0.227 \| good
2025-06-08T12:00:00.000Z	60 \| moderate	14.077 \| fine	62.939 \| fine	26.844 \| good	1.572 \| good	14.011 \| good	0.229 \| good
2025-06-08T13:00:00.000Z	62 \| moderate	15.062 \| fine	67.225 \| fine	29.692 \| good	2.653 \| good	5.311 \| good	0.209 \| good
2025-06-08T14:00:00.000Z	64 \| moderate	15.525 \| fine	69.146 \| fine	38.885 \| good	2.86 \| good	6.124 \| good	0.215 \| good
2025-06-08T15:00:00.000Z	56 \| moderate	11.94 \| good	53.284 \| good	50.189 \| good	3.068 \| good	6.938 \| good	0.22 \| good
2025-06-08T16:00:00.000Z	58 \| moderate	10.137 \| good	45.138 \| good	57.052 \| fine	1.369 \| good	1.565 \| good	0.202 \| good
2025-06-08T17:00:00.000Z	71 \| moderate	11.414 \| good	50.326 \| good	61.226 \| fine	1.538 \| good	1.884 \| good	0.202 \| good
2025-06-08T18:00:00.000Z	67 \| moderate	12.896 \| fine	58.304 \| fine	60.464 \| fine	1.708 \| good	2.204 \| good	0.203 \| good
2025-06-08T19:00:00.000Z	62 \| moderate	14.791 \| fine	66.419 \| fine	52.863 \| good	0.661 \| good	1.459 \| good	0.195 \| good
2025-06-08T20:00:00.000Z	64 \| moderate	15.859 \| fine	70.594 \| fine	48.085 \| good	0.776 \| good	1.687 \| good	0.196 \| good
2025-06-08T21:00:00.000Z	62 \| moderate	15.065 \| fine	67.321 \| fine	47.374 \| good	0.891 \| good	1.916 \| good	0.197 \| good
2025-06-08T22:00:00.000Z	62 \| moderate	14.673 \| fine	65.688 \| fine	45.307 \| good	0.499 \| good	3.399 \| good	0.185 \| good
2025-06-08T23:00:00.000Z	56 \| moderate	11.76 \| good	52.698 \| good	45.69 \| good	0.638 \| good	4.136 \| good	0.193 \| good
2025-06-09T00:00:00.000Z	38 \| good	3.372 \| good	14.491 \| good	40.864 \| good	0.776 \| good	4.873 \| good	0.201 \| good
2025-06-09T01:00:00.000Z	38 \| good	4.356 \| good	18.844 \| good	41.049 \| good	0.689 \| good	8.877 \| good	0.199 \| good
2025-06-09T02:00:00.000Z	38 \| good	6.588 \| good	29.076 \| good	34.41 \| good	0.828 \| good	9.859 \| good	0.207 \| good
2025-06-09T03:00:00.000Z	44 \| good	7.53 \| good	33.113 \| good	30.005 \| good	0.966 \| good	10.841 \| good	0.214 \| good
2025-06-09T04:00:00.000Z	38 \| good	6.871 \| good	30.399 \| good	27.528 \| good	0.849 \| good	13.908 \| good	0.218 \| good
2025-06-09T05:00:00.000Z	44 \| good	7.894 \| good	34.747 \| good	24.924 \| good	1.063 \| good	15.691 \| good	0.231 \| good
2025-06-09T06:00:00.000Z	52 \| moderate	10.394 \| good	45.812 \| good	23.71 \| good	1.277 \| good	17.475 \| good	0.244 \| good
2025-06-09T07:00:00.000Z	54 \| moderate	10.963 \| good	48.941 \| good	23.259 \| good	0.711 \| good	8.555 \| good	0.163 \| good
2025-06-09T08:00:00.000Z	54 \| moderate	11.44 \| good	51.13 \| good	22.426 \| good	0.91 \| good	9.706 \| good	0.173 \| good
2025-06-09T09:00:00.000Z	56 \| moderate	11.689 \| good	52.122 \| good	22.84 \| good	1.109 \| good	10.857 \| good	0.182 \| good
2025-06-09T10:00:00.000Z	49 \| good	8.737 \| good	38.535 \| good	16.648 \| good	0.675 \| good	6.363 \| good	0.152 \| good
2025-06-09T11:00:00.000Z	38 \| good	7.013 \| good	30.939 \| good	20.845 \| good	0.822 \| good	6.983 \| good	0.155 \| good
2025-06-09T12:00:00.000Z	22 \| good	4.233 \| good	18.297 \| good	22.872 \| good	0.969 \| good	7.603 \| good	0.159 \| good
2025-06-09T13:00:00.000Z	27 \| good	5.15 \| good	22.328 \| good	24.758 \| good	0.963 \| good	3.735 \| good	0.157 \| good
2025-06-09T14:00:00.000Z	52 \| moderate	10.164 \| good	45.197 \| good	29.915 \| good	1.167 \| good	4.408 \| good	0.161 \| good
2025-06-09T15:00:00.000Z	49 \| good	8.954 \| good	39.723 \| good	36.873 \| good	1.372 \| good	5.081 \| good	0.165 \| good
2025-06-09T16:00:00.000Z	52 \| moderate	9.892 \| good	43.771 \| good	41.631 \| good	0.418 \| good	1.092 \| good	0.153 \| good
2025-06-09T17:00:00.000Z	54 \| moderate	11.149 \| good	49.56 \| good	43.621 \| good	0.493 \| good	1.305 \| good	0.154 \| good
2025-06-09T18:00:00.000Z	62 \| moderate	14.623 \| fine	65.453 \| fine	42.626 \| good	0.567 \| good	1.519 \| good	0.155 \| good

Real-time air quality index in Westchester, Illinois today

Major air pollutants in Westchester, Illinois

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)