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

The PM10 concentration in Westchester, Illinois is 92.88 μg/m3 at the moment.

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

Currently, Westchester, Illinois has a sulfur dioxide (SO2) concentration of 0.36 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 24.165 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 8.571 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)

22.65 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

99.39 μg/m³

155

255

425

605+

Ozone (O₃)

35.33 ppb

201

201+

Sulfur Dioxide (SO₂)

0.26 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

3.59 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.40 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

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

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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
2025-07-11T18:00:00.000Z	44 \| good	8.248 \| good	36.633 \| good	32.715 \| good	0.337 \| good	3.742 \| good	0.238 \| good
2025-07-11T19:00:00.000Z	49 \| good	8.724 \| good	38.554 \| good	39.328 \| good	0.279 \| good	4.967 \| good	0.258 \| good
2025-07-11T20:00:00.000Z	44 \| good	8.489 \| good	37.447 \| good	44.429 \| good	0.299 \| good	7.518 \| good	0.293 \| good
2025-07-11T21:00:00.000Z	44 \| good	8.172 \| good	36.239 \| good	48.482 \| good	0.32 \| good	5.315 \| good	0.312 \| good
2025-07-11T22:00:00.000Z	47 \| good	8.176 \| good	35.972 \| good	50.93 \| good	0.276 \| good	3.667 \| good	0.3 \| good
2025-07-11T23:00:00.000Z	44 \| good	8.4 \| good	37.079 \| good	44.204 \| good	0.419 \| good	3.332 \| good	0.318 \| good
2025-07-12T00:00:00.000Z	49 \| good	8.618 \| good	38.483 \| good	42.53 \| good	0.324 \| good	4.055 \| good	0.258 \| good
2025-07-12T01:00:00.000Z	44 \| good	8.374 \| good	37.529 \| good	37.565 \| good	0.305 \| good	4.934 \| good	0.241 \| good
2025-07-12T02:00:00.000Z	44 \| good	8.017 \| good	35.685 \| good	38.271 \| good	0.332 \| good	7.302 \| good	0.251 \| good
2025-07-12T03:00:00.000Z	77 \| moderate	23.103 \| fine	101.338 \| fine	22.146 \| good	1.852 \| good	12.147 \| good	0.245 \| good
2025-07-12T04:00:00.000Z	35 \| good	4.627 \| good	20.438 \| good	37.754 \| good	0.27 \| good	6.568 \| good	0.173 \| good
2025-07-12T05:00:00.000Z	34 \| good	3.984 \| good	17.702 \| good	37.343 \| good	0.351 \| good	5.277 \| good	0.173 \| good
2025-07-12T06:00:00.000Z	34 \| good	3.843 \| good	17.211 \| good	36.918 \| good	0.275 \| good	3.863 \| good	0.153 \| good
2025-07-12T07:00:00.000Z	31 \| good	3.656 \| good	16.396 \| good	33.435 \| good	0.393 \| good	4.171 \| good	0.142 \| good
2025-07-12T08:00:00.000Z	29 \| good	3.547 \| good	15.555 \| good	31.473 \| good	0.268 \| good	7.826 \| good	0.171 \| good
2025-07-12T09:00:00.000Z	29 \| good	3.86 \| good	17.123 \| good	31.314 \| good	0.594 \| good	8.632 \| good	0.164 \| good
2025-07-12T10:00:00.000Z	26 \| good	4.457 \| good	19.375 \| good	28.21 \| good	0.395 \| good	5.935 \| good	0.164 \| good
2025-07-12T11:00:00.000Z	26 \| good	4.095 \| good	17.878 \| good	28.187 \| good	0.345 \| good	4.871 \| good	0.164 \| good
2025-07-12T12:00:00.000Z	29 \| good	3.6 \| good	15.988 \| good	30.827 \| good	0.397 \| good	4.854 \| good	0.201 \| good
2025-07-12T13:00:00.000Z	31 \| good	3.767 \| good	16.774 \| good	33.559 \| good	0.283 \| good	4.652 \| good	0.201 \| good
2025-07-12T14:00:00.000Z	35 \| good	3.772 \| good	16.58 \| good	37.783 \| good	0.2 \| good	4.174 \| good	0.201 \| good
2025-07-12T15:00:00.000Z	40 \| good	3.823 \| good	16.917 \| good	42.655 \| good	0.296 \| good	3.517 \| good	0.22 \| good
2025-07-12T16:00:00.000Z	41 \| good	3.802 \| good	16.724 \| good	43.681 \| good	0.299 \| good	3.52 \| good	0.184 \| good
2025-07-12T17:00:00.000Z	44 \| good	3.941 \| good	17.325 \| good	47.721 \| good	0.366 \| good	3.76 \| good	0.236 \| good
2025-07-12T18:00:00.000Z	46 \| good	4.295 \| good	18.926 \| good	49.99 \| good	0.359 \| good	3.899 \| good	0.22 \| good
2025-07-12T19:00:00.000Z	47 \| good	4.769 \| good	21.008 \| good	50.991 \| good	0.323 \| good	3.64 \| good	0.175 \| good
2025-07-12T20:00:00.000Z	45 \| good	5.169 \| good	22.646 \| good	49.367 \| good	0.329 \| good	3.395 \| good	0.245 \| good
2025-07-12T21:00:00.000Z	45 \| good	5.303 \| good	23.318 \| good	48.955 \| good	0.323 \| good	3.075 \| good	0.198 \| good
2025-07-12T22:00:00.000Z	41 \| good	5.334 \| good	23.729 \| good	44.076 \| good	0.283 \| good	3.856 \| good	0.22 \| good
2025-07-12T23:00:00.000Z	43 \| good	5.325 \| good	23.87 \| good	45.772 \| good	0.288 \| good	3.165 \| good	0.242 \| good
2025-07-13T00:00:00.000Z	44 \| good	5.335 \| good	23.315 \| good	47.074 \| good	0.331 \| good	3.03 \| good	0.251 \| good
2025-07-13T01:00:00.000Z	41 \| good	5.217 \| good	22.723 \| good	43.886 \| good	0.333 \| good	3.509 \| good	0.255 \| good
2025-07-13T02:00:00.000Z	39 \| good	5.187 \| good	22.891 \| good	42.161 \| good	0.33 \| good	5.105 \| good	0.325 \| good
2025-07-13T03:00:00.000Z	31 \| good	5.403 \| good	23.998 \| good	33.557 \| good	0.358 \| good	11.397 \| good	0.322 \| good
2025-07-13T04:00:00.000Z	33 \| good	6.334 \| good	28.034 \| good	35.714 \| good	0.327 \| good	10.123 \| good	0.325 \| good
2025-07-13T05:00:00.000Z	52 \| moderate	10.177 \| good	45.11 \| good	35.717 \| good	0.333 \| good	7.917 \| good	0.359 \| good
2025-07-13T06:00:00.000Z	66 \| moderate	16.857 \| fine	75.39 \| fine	31.565 \| good	0.324 \| good	4.938 \| good	0.304 \| good
2025-07-13T07:00:00.000Z	75 \| moderate	22.01 \| fine	96.268 \| fine	30.529 \| good	0.289 \| good	5.369 \| good	0.301 \| good
2025-07-13T08:00:00.000Z	79 \| moderate	23.968 \| fine	105.239 \| fine	28.654 \| good	0.306 \| good	5.778 \| good	0.232 \| good
2025-07-13T09:00:00.000Z	81 \| moderate	24.773 \| fine	108.069 \| fine	25.303 \| good	0.34 \| good	7.047 \| good	0.248 \| good
2025-07-13T10:00:00.000Z	81 \| moderate	24.642 \| fine	107.286 \| fine	26.574 \| good	0.388 \| good	14.516 \| good	0.258 \| good
2025-07-13T11:00:00.000Z	77 \| moderate	23.076 \| fine	101.072 \| fine	25.483 \| good	0.353 \| good	14.265 \| good	0.236 \| good
2025-07-13T12:00:00.000Z	73 \| moderate	20.79 \| fine	91.409 \| fine	24.453 \| good	0.488 \| good	13.731 \| good	0.219 \| good
2025-07-13T13:00:00.000Z	73 \| moderate	20.79 \| fine	91.409 \| fine	21.235 \| good	0.42 \| good	9.089 \| good	0.253 \| good
2025-07-13T14:00:00.000Z	69 \| moderate	19.305 \| fine	85.177 \| fine	21.597 \| good	0.433 \| good	10.275 \| good	0.243 \| good
2025-07-13T15:00:00.000Z	73 \| moderate	21.202 \| fine	92.88 \| fine	24.165 \| good	0.36 \| good	8.571 \| good	0.303 \| good
2025-07-13T16:00:00.000Z	73 \| moderate	21.202 \| fine	92.88 \| fine	30.102 \| good	0.335 \| good	4.104 \| good	0.348 \| good
2025-07-13T17:00:00.000Z	77 \| moderate	22.652 \| fine	99.39 \| fine	35.329 \| good	0.261 \| good	3.589 \| good	0.395 \| good
2025-07-13T17:00:00.000Z	77 \| moderate	22.652 \| fine	99.39 \| fine	35.329 \| good	0.261 \| good	3.589 \| good	0.395 \| good
2025-07-13T17:00:00.000Z	44 \| good	8.048 \| good	35.176 \| good	44.572 \| good	1.761 \| good	3.28 \| good	0.178 \| good
2025-07-13T18:00:00.000Z	38 \| good	7.279 \| good	31.995 \| good	38.897 \| good	1.738 \| good	2.413 \| good	0.173 \| good
2025-07-13T19:00:00.000Z	38 \| good	6.764 \| good	29.942 \| good	34.735 \| good	1.662 \| good	2.551 \| good	0.173 \| good
2025-07-13T20:00:00.000Z	38 \| good	6.554 \| good	29.042 \| good	34.84 \| good	1.587 \| good	2.688 \| good	0.172 \| good
2025-07-13T21:00:00.000Z	38 \| good	6.602 \| good	29.459 \| good	38.645 \| good	1.512 \| good	2.826 \| good	0.171 \| good
2025-07-13T22:00:00.000Z	43 \| good	6.623 \| good	29.423 \| good	45.506 \| good	1.48 \| good	3.978 \| good	0.179 \| good
2025-07-13T23:00:00.000Z	43 \| good	6.639 \| good	29.521 \| good	46.418 \| good	1.449 \| good	5.129 \| good	0.188 \| good
2025-07-14T00:00:00.000Z	58 \| moderate	12.986 \| fine	58.412 \| fine	36.544 \| good	1.417 \| good	6.28 \| good	0.196 \| good
2025-07-14T01:00:00.000Z	67 \| moderate	18.463 \| fine	81.555 \| fine	29.626 \| good	1.622 \| good	11.324 \| good	0.229 \| good
2025-07-14T02:00:00.000Z	73 \| moderate	20.84 \| fine	91.805 \| fine	23.331 \| good	1.826 \| good	16.367 \| good	0.263 \| good
2025-07-14T03:00:00.000Z	71 \| moderate	19.792 \| fine	87.021 \| fine	18.324 \| good	2.031 \| good	21.411 \| good	0.297 \| good
2025-07-14T04:00:00.000Z	69 \| moderate	19.096 \| fine	84.02 \| fine	15.565 \| good	2.218 \| good	24.425 \| good	0.33 \| good
2025-07-14T05:00:00.000Z	67 \| moderate	17.543 \| fine	77.526 \| fine	16.121 \| good	2.405 \| good	27.44 \| good	0.363 \| good
2025-07-14T06:00:00.000Z	66 \| moderate	16.633 \| fine	73.584 \| fine	18.954 \| good	2.592 \| good	30.455 \| good	0.396 \| good
2025-07-14T07:00:00.000Z	64 \| moderate	16.121 \| fine	71.931 \| fine	18.938 \| good	2.579 \| good	30.021 \| good	0.396 \| good
2025-07-14T08:00:00.000Z	67 \| moderate	17.591 \| fine	77.901 \| fine	17.329 \| good	2.566 \| good	29.587 \| good	0.396 \| good
2025-07-14T09:00:00.000Z	67 \| moderate	18.288 \| fine	80.623 \| fine	15.116 \| good	2.554 \| good	29.154 \| good	0.397 \| good
2025-07-14T10:00:00.000Z	73 \| moderate	21.269 \| fine	93.292 \| fine	11.84 \| good	2.565 \| good	26.432 \| good	0.387 \| good
2025-07-14T11:00:00.000Z	75 \| moderate	22.109 \| fine	96.714 \| fine	10.12 \| good	2.577 \| good	23.71 \| good	0.378 \| good
2025-07-14T12:00:00.000Z	73 \| moderate	21.151 \| fine	92.778 \| fine	15.779 \| good	2.589 \| good	20.988 \| good	0.369 \| good
2025-07-14T13:00:00.000Z	73 \| moderate	20.753 \| fine	91.351 \| fine	26.882 \| good	3.097 \| good	16.211 \| good	0.321 \| good
2025-07-14T14:00:00.000Z	79 \| moderate	23.831 \| fine	104.27 \| fine	40.248 \| good	3.605 \| good	11.434 \| good	0.274 \| good
2025-07-14T15:00:00.000Z	86 \| moderate	27.975 \| fine	121.356 \| fine	50.42 \| good	4.113 \| good	6.656 \| good	0.227 \| good
2025-07-14T16:00:00.000Z	82 \| moderate	26.318 \| fine	115.242 \| fine	57.104 \| fine	3.984 \| good	5.486 \| good	0.223 \| good
2025-07-14T17:00:00.000Z	80 \| moderate	21.073 \| fine	92.697 \| fine	63.792 \| fine	3.855 \| good	4.316 \| good	0.22 \| good
2025-07-14T18:00:00.000Z	93 \| moderate	19.421 \| fine	85.339 \| fine	67.839 \| fine	3.727 \| good	3.145 \| good	0.217 \| good
2025-07-14T19:00:00.000Z	100 \| moderate	17.298 \| fine	76.49 \| fine	69.769 \| fine	3.505 \| good	2.848 \| good	0.215 \| good
2025-07-14T20:00:00.000Z	112 \| sensitive	17.571 \| fine	77.482 \| fine	73.661 \| moderate	3.283 \| good	2.55 \| good	0.213 \| good
2025-07-14T21:00:00.000Z	100 \| moderate	20.669 \| fine	91.027 \| fine	69.614 \| fine	3.061 \| good	2.252 \| good	0.212 \| good
2025-07-14T22:00:00.000Z	87 \| moderate	25.166 \| fine	109.638 \| fine	65.502 \| fine	2.943 \| good	3.561 \| good	0.22 \| good
2025-07-14T23:00:00.000Z	79 \| moderate	24.231 \| fine	105.827 \| fine	61.535 \| fine	2.826 \| good	4.87 \| good	0.228 \| good
2025-07-15T00:00:00.000Z	90 \| moderate	30.157 \| fine	130.807 \| fine	52.221 \| good	2.709 \| good	6.179 \| good	0.237 \| good
2025-07-15T01:00:00.000Z	90 \| moderate	30.194 \| fine	130.733 \| fine	39.312 \| good	2.648 \| good	8.356 \| good	0.253 \| good
2025-07-15T02:00:00.000Z	88 \| moderate	28.888 \| fine	125.329 \| fine	33.411 \| good	2.587 \| good	10.532 \| good	0.269 \| good
2025-07-15T03:00:00.000Z	84 \| moderate	27.344 \| fine	118.33 \| fine	28.985 \| good	2.526 \| good	12.709 \| good	0.284 \| good
2025-07-15T04:00:00.000Z	82 \| moderate	26.025 \| fine	113.153 \| fine	24.598 \| good	2.517 \| good	11.649 \| good	0.273 \| good
2025-07-15T05:00:00.000Z	81 \| moderate	25.192 \| fine	109.86 \| fine	23.578 \| good	2.508 \| good	10.59 \| good	0.262 \| good
2025-07-15T06:00:00.000Z	82 \| moderate	26.408 \| fine	115.272 \| fine	18.969 \| good	2.499 \| good	9.531 \| good	0.251 \| good
2025-07-15T07:00:00.000Z	81 \| moderate	24.932 \| fine	108.707 \| fine	16.592 \| good	2.431 \| good	9.449 \| good	0.247 \| good
2025-07-15T08:00:00.000Z	81 \| moderate	24.663 \| fine	108.025 \| fine	13.155 \| good	2.364 \| good	9.368 \| good	0.244 \| good
2025-07-15T09:00:00.000Z	81 \| moderate	25.111 \| fine	109.499 \| fine	15.004 \| good	2.296 \| good	9.286 \| good	0.24 \| good
2025-07-15T10:00:00.000Z	81 \| moderate	25.126 \| fine	109.227 \| fine	17.681 \| good	2.376 \| good	9.787 \| good	0.249 \| good
2025-07-15T11:00:00.000Z	81 \| moderate	24.807 \| fine	108.232 \| fine	18.562 \| good	2.456 \| good	10.288 \| good	0.258 \| good
2025-07-15T12:00:00.000Z	79 \| moderate	23.594 \| fine	103.237 \| fine	24.159 \| good	2.535 \| good	10.789 \| good	0.267 \| good
2025-07-15T13:00:00.000Z	69 \| moderate	19.208 \| fine	84.943 \| fine	30.732 \| good	2.787 \| good	9.086 \| good	0.258 \| good
2025-07-15T14:00:00.000Z	64 \| moderate	16.175 \| fine	71.643 \| fine	40.52 \| good	3.038 \| good	7.384 \| good	0.248 \| good
2025-07-15T15:00:00.000Z	60 \| moderate	14.487 \| fine	64.461 \| fine	51.21 \| good	3.29 \| good	5.682 \| good	0.239 \| good
2025-07-15T16:00:00.000Z	58 \| moderate	13.242 \| fine	59.464 \| fine	54.505 \| good	2.799 \| good	4.456 \| good	0.225 \| good

Westchester

Get reliable air quality data to drive your business

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

0.30ppm

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

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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 10:00:00 on 2025-07-13.

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 03:00:00 on 2025-07-13.

What is the AQI in Westchester, Illinois right now?

As of now, the AQI in Westchester, Illinois is 73, 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 21.202 μg/m³.

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

The PM₁₀ concentration in Westchester, Illinois is 92.88 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 0.303 ppm.

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

Currently, Westchester, Illinois has a sulfur dioxide (SO₂) concentration of 0.36 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 24.165 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 8.571 ppb.

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