What is the current level of PM10 in West Chester, Pennsylvania?

West Chester, Pennsylvania currently has a PM10 concentration of 47.76 μg/m3.

What is the current level of sulfur dioxide (SO2) in West Chester, Pennsylvania?

The current sulfur dioxide (SO2) concentration in West Chester, Pennsylvania is 0.491 ppb.

What is the current level of ozone (O3) in West Chester, Pennsylvania?

West Chester, Pennsylvania currently has an ozone (O3) concentration of 22.677 ppm.

What is the current level of nitrogen dioxide (NO2) in West Chester, Pennsylvania?

The current level of nitrogen dioxide (NO2) in West Chester, Pennsylvania is 9.484 ppb.

Current air quality index in West Chester, Pennsylvania today

Q: What is the PM2.5 concentration in West Chester, Pennsylvania right now?

West Chester, Pennsylvania currently has a PM2.5 concentration of 10.546 μg/m3.

Stay updated with real-time air quality in West Chester, Pennsylvania 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

West Chester, Pennsylvania

Last updated: ... (Local time)

Common air pollutants in West Chester, Pennsylvania

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

10.55 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

47.76 μg/m³

155

255

425

605+

Ozone (O₃)

22.68 ppb

201

201+

Sulfur Dioxide (SO₂)

0.49 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

9.48 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.28 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

West Chester, Pennsylvania

Get Live Pollen Counts

West Chester, Pennsylvania

Scroll To Air Quality Map

Track live West Chester, Pennsylvania air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-08-11T09:00:00.000Z	49 \| good	9.413 \| good	28.062 \| good	25.224 \| good	0.34 \| good	6.038 \| good	0.243 \| good
2026-08-11T10:00:00.000Z	49 \| good	9.056 \| good	40.291 \| good	22.869 \| good	0.272 \| good	7.947 \| good	0.283 \| good
2026-08-11T11:00:00.000Z	49 \| good	8.773 \| good	41.083 \| good	26.476 \| good	0.422 \| good	10.689 \| good	0.293 \| good
2026-08-11T12:00:00.000Z	52 \| moderate	9.673 \| good	37.711 \| good	24.253 \| good	0.21 \| good	9.689 \| good	0.342 \| good
2026-08-11T13:00:00.000Z	49 \| good	9.338 \| good	40.709 \| good	26.031 \| good	0.207 \| good	11.968 \| good	0.342 \| good
2026-08-11T14:00:00.000Z	56 \| moderate	12.196 \| fine	54.915 \| good	31.319 \| good	0.42 \| good	8.134 \| good	0.361 \| good
2026-08-11T15:00:00.000Z	60 \| moderate	13.866 \| fine	58.732 \| fine	35.711 \| good	0.467 \| good	7.43 \| good	0.361 \| good
2026-08-11T16:00:00.000Z	66 \| moderate	16.703 \| fine	77.587 \| fine	38.575 \| good	0.407 \| good	6.07 \| good	0.353 \| good
2026-08-11T17:00:00.000Z	60 \| moderate	13.805 \| fine	53.246 \| good	44.848 \| good	0.293 \| good	5.863 \| good	0.345 \| good
2026-08-11T18:00:00.000Z	66 \| moderate	17.171 \| fine	69.003 \| fine	49.202 \| good	0.436 \| good	5.253 \| good	0.345 \| good
2026-08-11T19:00:00.000Z	64 \| moderate	16.242 \| fine	56.824 \| fine	50.346 \| good	0.604 \| good	7.883 \| good	0.4 \| good
2026-08-11T20:00:00.000Z	66 \| moderate	17.347 \| fine	40.183 \| good	51.488 \| good	0.245 \| good	6.41 \| good	0.392 \| good
2026-08-11T21:00:00.000Z	66 \| moderate	17.049 \| fine	72.581 \| fine	55.227 \| fine	0.245 \| good	5.577 \| good	0.345 \| good
2026-08-11T22:00:00.000Z	60 \| moderate	14.453 \| fine	55.658 \| fine	51.826 \| good	0.235 \| good	6.702 \| good	0.371 \| good
2026-08-11T23:00:00.000Z	62 \| moderate	14.637 \| fine	55.256 \| fine	51.591 \| good	0.227 \| good	4.466 \| good	0.381 \| good
2026-08-12T00:00:00.000Z	67 \| moderate	18.116 \| fine	83.021 \| fine	53.679 \| good	0.289 \| good	2.847 \| good	0.381 \| good
2026-08-12T01:00:00.000Z	80 \| moderate	16.771 \| fine	70.176 \| fine	63.554 \| fine	0.195 \| good	6.278 \| good	0.381 \| good
2026-08-12T02:00:00.000Z	69 \| moderate	19.468 \| fine	79.392 \| fine	55.083 \| fine	0.34 \| good	8.189 \| good	0.404 \| good
2026-08-12T03:00:00.000Z	38 \| good	7.286 \| good	31.924 \| good	26.769 \| good	0.717 \| good	8.759 \| good	0.288 \| good
2026-08-12T04:00:00.000Z	73 \| moderate	20.783 \| fine	85.813 \| fine	48.275 \| good	0.336 \| good	6.799 \| good	0.426 \| good
2026-08-12T05:00:00.000Z	71 \| moderate	20.094 \| fine	78.746 \| fine	37.555 \| good	0.313 \| good	9.247 \| good	0.363 \| good
2026-08-12T06:00:00.000Z	75 \| moderate	21.695 \| fine	78.564 \| fine	32.097 \| good	0.311 \| good	9.18 \| good	0.345 \| good
2026-08-12T07:00:00.000Z	69 \| moderate	19.002 \| fine	62.651 \| fine	35.498 \| good	0.326 \| good	7.839 \| good	0.327 \| good
2026-08-12T08:00:00.000Z	66 \| moderate	16.761 \| fine	67.189 \| fine	34.705 \| good	0.351 \| good	9.172 \| good	0.276 \| good
2026-08-12T09:00:00.000Z	69 \| moderate	18.859 \| fine	58.962 \| fine	31.935 \| good	0.263 \| good	8.891 \| good	0.298 \| good
2026-08-12T10:00:00.000Z	69 \| moderate	18.559 \| fine	54.774 \| good	31.04 \| good	0.313 \| good	8.835 \| good	0.316 \| good
2026-08-12T11:00:00.000Z	66 \| moderate	16.792 \| fine	46.733 \| good	27.701 \| good	0.16 \| good	14.53 \| good	0.389 \| good
2026-08-12T12:00:00.000Z	66 \| moderate	16.977 \| fine	72.707 \| fine	24.783 \| good	0.618 \| good	10.18 \| good	0.381 \| good
2026-08-12T13:00:00.000Z	67 \| moderate	18.157 \| fine	61.084 \| fine	29.565 \| good	0.653 \| good	13.509 \| good	0.399 \| good
2026-08-12T14:00:00.000Z	64 \| moderate	15.801 \| fine	54.274 \| good	28.689 \| good	0.357 \| good	8.418 \| good	0.363 \| good
2026-08-12T15:00:00.000Z	60 \| moderate	14.264 \| fine	44.115 \| good	33.772 \| good	0.384 \| good	7.87 \| good	0.316 \| good
2026-08-12T16:00:00.000Z	58 \| moderate	12.919 \| fine	54.548 \| good	36.691 \| good	0.333 \| good	6.532 \| good	0.284 \| good
2026-08-12T17:00:00.000Z	52 \| moderate	10.324 \| good	41.714 \| good	38.624 \| good	0.332 \| good	4.555 \| good	0.258 \| good
2026-08-12T18:00:00.000Z	52 \| moderate	9.647 \| good	43.704 \| good	41.013 \| good	0.351 \| good	5.405 \| good	0.255 \| good
2026-08-12T19:00:00.000Z	52 \| moderate	10.064 \| good	39.971 \| good	45.186 \| good	0.27 \| good	5.128 \| good	0.276 \| good
2026-08-12T20:00:00.000Z	52 \| moderate	9.541 \| good	38.524 \| good	48.63 \| good	0.416 \| good	5.422 \| good	0.302 \| good
2026-08-12T21:00:00.000Z	54 \| moderate	11.407 \| good	37.925 \| good	49.194 \| good	0.315 \| good	2.854 \| good	0.224 \| good
2026-08-12T22:00:00.000Z	56 \| moderate	11.836 \| good	62.232 \| fine	51.7 \| good	0.403 \| good	4.66 \| good	0.302 \| good
2026-08-12T23:00:00.000Z	56 \| moderate	12.415 \| fine	48.215 \| good	45.285 \| good	0.369 \| good	3.045 \| good	0.31 \| good
2026-08-13T00:00:00.000Z	56 \| moderate	11.76 \| good	54.838 \| good	51.249 \| good	0.433 \| good	8.777 \| good	0.35 \| good
2026-08-13T01:00:00.000Z	56 \| moderate	12.471 \| fine	60.343 \| fine	45.955 \| good	0.267 \| good	9.136 \| good	0.35 \| good
2026-08-13T02:00:00.000Z	54 \| moderate	10.922 \| good	37.845 \| good	37.832 \| good	0.292 \| good	6.897 \| good	0.328 \| good
2026-08-13T03:00:00.000Z	54 \| moderate	11.092 \| good	46.036 \| good	41.704 \| good	0.546 \| good	7.451 \| good	0.342 \| good
2026-08-13T04:00:00.000Z	54 \| moderate	11.229 \| good	43.501 \| good	36.166 \| good	0.607 \| good	10.328 \| good	0.342 \| good
2026-08-13T05:00:00.000Z	52 \| moderate	9.807 \| good	48.856 \| good	30.808 \| good	0.588 \| good	8.218 \| good	0.304 \| good
2026-08-13T06:00:00.000Z	54 \| moderate	10.786 \| good	36.531 \| good	23.448 \| good	0.42 \| good	8.344 \| good	0.282 \| good
2026-08-13T07:00:00.000Z	54 \| moderate	10.715 \| good	48.755 \| good	20.276 \| good	0.42 \| good	8.282 \| good	0.282 \| good
2026-08-13T08:00:00.000Z	54 \| moderate	10.546 \| good	47.76 \| good	22.677 \| good	0.491 \| good	9.484 \| good	0.282 \| good
2026-08-13T08:00:00.000Z	54 \| moderate	10.546 \| good	47.76 \| good	22.677 \| good	0.491 \| good	9.484 \| good	0.282 \| good
2026-08-12T16:00:00.000Z	47 \| good	6.435 \| good	28.507 \| good	51.096 \| good	0.593 \| good	1.093 \| good	0.167 \| good
2026-08-12T17:00:00.000Z	58 \| moderate	8.654 \| good	37.72 \| good	56.977 \| fine	0.544 \| good	0.924 \| good	0.167 \| good
2026-08-12T18:00:00.000Z	58 \| moderate	10.279 \| good	45.331 \| good	56.783 \| fine	0.535 \| good	0.894 \| good	0.17 \| good
2026-08-12T19:00:00.000Z	54 \| moderate	11.003 \| good	48.48 \| good	54.621 \| good	0.548 \| good	0.949 \| good	0.175 \| good
2026-08-12T20:00:00.000Z	56 \| moderate	11.551 \| good	51.098 \| good	50.669 \| good	0.567 \| good	1.023 \| good	0.179 \| good
2026-08-12T21:00:00.000Z	56 \| moderate	11.739 \| good	52.036 \| good	50.435 \| good	0.582 \| good	1.186 \| good	0.182 \| good
2026-08-12T22:00:00.000Z	60 \| moderate	14.305 \| fine	64.275 \| fine	54.838 \| good	0.598 \| good	1.629 \| good	0.186 \| good
2026-08-12T23:00:00.000Z	62 \| moderate	15.202 \| fine	67.911 \| fine	52.691 \| good	0.607 \| good	4.277 \| good	0.209 \| good
2026-08-13T00:00:00.000Z	56 \| moderate	11.692 \| good	51.618 \| good	44.272 \| good	0.695 \| good	13.519 \| good	0.284 \| good
2026-08-13T01:00:00.000Z	52 \| moderate	10.339 \| good	45.978 \| good	36.078 \| good	0.813 \| good	22.338 \| good	0.351 \| good
2026-08-13T02:00:00.000Z	52 \| moderate	9.754 \| good	43.416 \| good	34.047 \| good	0.861 \| good	24.48 \| good	0.367 \| good
2026-08-13T03:00:00.000Z	54 \| moderate	10.978 \| good	48.7 \| good	32.956 \| good	0.829 \| good	22.104 \| good	0.349 \| good
2026-08-13T04:00:00.000Z	56 \| moderate	12.289 \| fine	55.133 \| fine	25.009 \| good	0.67 \| good	13.488 \| good	0.289 \| good
2026-08-13T05:00:00.000Z	56 \| moderate	11.964 \| good	53.527 \| good	17.458 \| good	0.5 \| good	7.722 \| good	0.243 \| good
2026-08-13T06:00:00.000Z	49 \| good	9.181 \| good	41.064 \| good	19.324 \| good	0.419 \| good	6.408 \| good	0.23 \| good
2026-08-13T07:00:00.000Z	33 \| good	6.321 \| good	28.208 \| good	21.422 \| good	0.364 \| good	5.069 \| good	0.218 \| good
2026-08-13T08:00:00.000Z	27 \| good	5.409 \| good	23.044 \| good	21.693 \| good	0.342 \| good	4.043 \| good	0.205 \| good
2026-08-13T09:00:00.000Z	33 \| good	6.155 \| good	27.37 \| good	21.682 \| good	0.417 \| good	3.589 \| good	0.196 \| good
2026-08-13T10:00:00.000Z	33 \| good	5.946 \| good	26.932 \| good	21.731 \| good	0.535 \| good	3.702 \| good	0.194 \| good
2026-08-13T11:00:00.000Z	38 \| good	6.642 \| good	29.868 \| good	20.387 \| good	0.626 \| good	4.116 \| good	0.198 \| good
2026-08-13T12:00:00.000Z	38 \| good	6.934 \| good	30.853 \| good	26.647 \| good	0.756 \| good	3.24 \| good	0.2 \| good
2026-08-13T13:00:00.000Z	44 \| good	8.148 \| good	35.6 \| good	33.44 \| good	0.736 \| good	2.614 \| good	0.203 \| good
2026-08-13T14:00:00.000Z	49 \| good	9.325 \| good	41.48 \| good	38.968 \| good	0.698 \| good	2.293 \| good	0.208 \| good
2026-08-13T15:00:00.000Z	52 \| moderate	9.917 \| good	44.326 \| good	42.908 \| good	0.651 \| good	1.806 \| good	0.21 \| good
2026-08-13T16:00:00.000Z	52 \| moderate	10.051 \| good	44.48 \| good	44.579 \| good	0.643 \| good	1.648 \| good	0.213 \| good
2026-08-13T17:00:00.000Z	52 \| moderate	10.375 \| good	45.726 \| good	44.891 \| good	0.625 \| good	1.413 \| good	0.214 \| good
2026-08-13T18:00:00.000Z	54 \| moderate	11.25 \| good	49.688 \| good	45.762 \| good	0.588 \| good	1.169 \| good	0.215 \| good
2026-08-13T19:00:00.000Z	56 \| moderate	11.58 \| good	51.179 \| good	45.308 \| good	0.579 \| good	1.182 \| good	0.218 \| good
2026-08-13T20:00:00.000Z	56 \| moderate	12.285 \| fine	55.376 \| fine	41.636 \| good	0.554 \| good	1.201 \| good	0.219 \| good
2026-08-13T21:00:00.000Z	56 \| moderate	12.456 \| fine	56.689 \| fine	39.502 \| good	0.517 \| good	1.245 \| good	0.221 \| good
2026-08-13T22:00:00.000Z	58 \| moderate	13.454 \| fine	60.761 \| fine	36.863 \| good	0.493 \| good	1.53 \| good	0.224 \| good
2026-08-13T23:00:00.000Z	60 \| moderate	14.411 \| fine	64.534 \| fine	34.746 \| good	0.504 \| good	2.914 \| good	0.235 \| good
2026-08-14T00:00:00.000Z	56 \| moderate	11.956 \| good	53.052 \| good	26.905 \| good	0.534 \| good	7.719 \| good	0.272 \| good
2026-08-14T01:00:00.000Z	56 \| moderate	11.568 \| good	51.493 \| good	23.633 \| good	0.583 \| good	11.82 \| good	0.305 \| good
2026-08-14T02:00:00.000Z	54 \| moderate	11.443 \| good	51.062 \| good	19.721 \| good	0.631 \| good	12.799 \| good	0.313 \| good
2026-08-14T03:00:00.000Z	52 \| moderate	10.177 \| good	45.045 \| good	18.006 \| good	0.708 \| good	14.225 \| good	0.325 \| good
2026-08-14T04:00:00.000Z	54 \| moderate	11.397 \| good	50.397 \| good	14.161 \| good	0.775 \| good	14.751 \| good	0.334 \| good
2026-08-14T05:00:00.000Z	49 \| good	9.446 \| good	42.129 \| good	9.465 \| good	0.821 \| good	13.564 \| good	0.331 \| good
2026-08-14T06:00:00.000Z	44 \| good	7.959 \| good	34.716 \| good	8.779 \| good	0.874 \| good	12.965 \| good	0.328 \| good
2026-08-14T07:00:00.000Z	38 \| good	6.666 \| good	29.858 \| good	10.621 \| good	0.985 \| good	13.17 \| good	0.332 \| good
2026-08-14T08:00:00.000Z	33 \| good	5.95 \| good	26.432 \| good	10.619 \| good	1.107 \| good	13.315 \| good	0.338 \| good
2026-08-14T09:00:00.000Z	38 \| good	6.86 \| good	30.079 \| good	8.139 \| good	1.146 \| good	12.587 \| good	0.337 \| good
2026-08-14T10:00:00.000Z	33 \| good	6.402 \| good	28.444 \| good	8.775 \| good	1.194 \| good	10.521 \| good	0.324 \| good
2026-08-14T11:00:00.000Z	33 \| good	6.227 \| good	27.731 \| good	8.972 \| good	1.172 \| good	8.337 \| good	0.305 \| good
2026-08-14T12:00:00.000Z	33 \| good	5.734 \| good	24.555 \| good	13.608 \| good	1.017 \| good	6.789 \| good	0.285 \| good
2026-08-14T13:00:00.000Z	27 \| good	5.335 \| good	23 \| good	21.777 \| good	0.846 \| good	4.478 \| good	0.235 \| good
2026-08-14T14:00:00.000Z	33 \| good	5.538 \| good	23.726 \| good	29.114 \| good	0.776 \| good	2.817 \| good	0.202 \| good
2026-08-14T15:00:00.000Z	33 \| good	5.709 \| good	24.754 \| good	35.21 \| good	0.732 \| good	1.803 \| good	0.187 \| good

West Chester

Empower business decisions with accurate air quality data

Real-time air quality map: Monitor AQI near West Chester, Pennsylvania

0.30ppm

How accurate is Pennsylvania, USA air quality data?

The air quality data for Pennsylvania, 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 West Chester, Pennsylvania get updated?

Air quality updates for West Chester, Pennsylvania are available every hour.

What time in the past 24 hours saw the poorest air quality in West Chester, Pennsylvania?

West Chester, Pennsylvania experienced its worst air quality at 10:00:00, 2026-08-12.

When was air quality in West Chester, Pennsylvania the best over the past 24 hours?

The best air quality in West Chester, Pennsylvania was observed at 05:00:00 on 2026-08-13.

What is the air quality in West Chester, Pennsylvania right now?

The air quality in West Chester, Pennsylvania right now is Moderate, with an AQI of 54.

What pollutant is most frequently found in West Chester, Pennsylvania?

In West Chester, Pennsylvania, PM2.5 is the most frequently found pollutant.

What can I do if the air quality in West Chester, Pennsylvania is poor?

When air quality in West Chester, Pennsylvania is compromised, staying indoors and wearing a mask can reduce health risks.

What is the PM_2.5 concentration in West Chester, Pennsylvania right now?

West Chester, Pennsylvania currently has a PM_2.5 concentration of 10.546 μg/m³.

What is the current level of PM₁₀ in West Chester, Pennsylvania?

West Chester, Pennsylvania currently has a PM₁₀ concentration of 47.76 μg/m³.

What is the current level of carbon monoxide (CO) in West Chester, Pennsylvania?

The current carbon monoxide (CO) level in West Chester, Pennsylvania is 0.282 ppm.

What is the current level of sulfur dioxide (SO₂) in West Chester, Pennsylvania?

The current sulfur dioxide (SO₂) concentration in West Chester, Pennsylvania is 0.491 ppb.

What is the current level of ozone (O₃) in West Chester, Pennsylvania?

West Chester, Pennsylvania currently has an ozone (O₃) concentration of 22.677 ppm.

What is the current level of nitrogen dioxide (NO₂) in West Chester, Pennsylvania?

The current level of nitrogen dioxide (NO₂) in West Chester, Pennsylvania is 9.484 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions

Refund Policy

Terms & Conditions

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-08-11T09:00:00.000Z	49 \| good	9.413 \| good	28.062 \| good	25.224 \| good	0.34 \| good	6.038 \| good	0.243 \| good
2026-08-11T10:00:00.000Z	49 \| good	9.056 \| good	40.291 \| good	22.869 \| good	0.272 \| good	7.947 \| good	0.283 \| good
2026-08-11T11:00:00.000Z	49 \| good	8.773 \| good	41.083 \| good	26.476 \| good	0.422 \| good	10.689 \| good	0.293 \| good
2026-08-11T12:00:00.000Z	52 \| moderate	9.673 \| good	37.711 \| good	24.253 \| good	0.21 \| good	9.689 \| good	0.342 \| good
2026-08-11T13:00:00.000Z	49 \| good	9.338 \| good	40.709 \| good	26.031 \| good	0.207 \| good	11.968 \| good	0.342 \| good
2026-08-11T14:00:00.000Z	56 \| moderate	12.196 \| fine	54.915 \| good	31.319 \| good	0.42 \| good	8.134 \| good	0.361 \| good
2026-08-11T15:00:00.000Z	60 \| moderate	13.866 \| fine	58.732 \| fine	35.711 \| good	0.467 \| good	7.43 \| good	0.361 \| good
2026-08-11T16:00:00.000Z	66 \| moderate	16.703 \| fine	77.587 \| fine	38.575 \| good	0.407 \| good	6.07 \| good	0.353 \| good
2026-08-11T17:00:00.000Z	60 \| moderate	13.805 \| fine	53.246 \| good	44.848 \| good	0.293 \| good	5.863 \| good	0.345 \| good
2026-08-11T18:00:00.000Z	66 \| moderate	17.171 \| fine	69.003 \| fine	49.202 \| good	0.436 \| good	5.253 \| good	0.345 \| good
2026-08-11T19:00:00.000Z	64 \| moderate	16.242 \| fine	56.824 \| fine	50.346 \| good	0.604 \| good	7.883 \| good	0.4 \| good
2026-08-11T20:00:00.000Z	66 \| moderate	17.347 \| fine	40.183 \| good	51.488 \| good	0.245 \| good	6.41 \| good	0.392 \| good
2026-08-11T21:00:00.000Z	66 \| moderate	17.049 \| fine	72.581 \| fine	55.227 \| fine	0.245 \| good	5.577 \| good	0.345 \| good
2026-08-11T22:00:00.000Z	60 \| moderate	14.453 \| fine	55.658 \| fine	51.826 \| good	0.235 \| good	6.702 \| good	0.371 \| good
2026-08-11T23:00:00.000Z	62 \| moderate	14.637 \| fine	55.256 \| fine	51.591 \| good	0.227 \| good	4.466 \| good	0.381 \| good
2026-08-12T00:00:00.000Z	67 \| moderate	18.116 \| fine	83.021 \| fine	53.679 \| good	0.289 \| good	2.847 \| good	0.381 \| good
2026-08-12T01:00:00.000Z	80 \| moderate	16.771 \| fine	70.176 \| fine	63.554 \| fine	0.195 \| good	6.278 \| good	0.381 \| good
2026-08-12T02:00:00.000Z	69 \| moderate	19.468 \| fine	79.392 \| fine	55.083 \| fine	0.34 \| good	8.189 \| good	0.404 \| good
2026-08-12T03:00:00.000Z	38 \| good	7.286 \| good	31.924 \| good	26.769 \| good	0.717 \| good	8.759 \| good	0.288 \| good
2026-08-12T04:00:00.000Z	73 \| moderate	20.783 \| fine	85.813 \| fine	48.275 \| good	0.336 \| good	6.799 \| good	0.426 \| good
2026-08-12T05:00:00.000Z	71 \| moderate	20.094 \| fine	78.746 \| fine	37.555 \| good	0.313 \| good	9.247 \| good	0.363 \| good
2026-08-12T06:00:00.000Z	75 \| moderate	21.695 \| fine	78.564 \| fine	32.097 \| good	0.311 \| good	9.18 \| good	0.345 \| good
2026-08-12T07:00:00.000Z	69 \| moderate	19.002 \| fine	62.651 \| fine	35.498 \| good	0.326 \| good	7.839 \| good	0.327 \| good
2026-08-12T08:00:00.000Z	66 \| moderate	16.761 \| fine	67.189 \| fine	34.705 \| good	0.351 \| good	9.172 \| good	0.276 \| good
2026-08-12T09:00:00.000Z	69 \| moderate	18.859 \| fine	58.962 \| fine	31.935 \| good	0.263 \| good	8.891 \| good	0.298 \| good
2026-08-12T10:00:00.000Z	69 \| moderate	18.559 \| fine	54.774 \| good	31.04 \| good	0.313 \| good	8.835 \| good	0.316 \| good
2026-08-12T11:00:00.000Z	66 \| moderate	16.792 \| fine	46.733 \| good	27.701 \| good	0.16 \| good	14.53 \| good	0.389 \| good
2026-08-12T12:00:00.000Z	66 \| moderate	16.977 \| fine	72.707 \| fine	24.783 \| good	0.618 \| good	10.18 \| good	0.381 \| good
2026-08-12T13:00:00.000Z	67 \| moderate	18.157 \| fine	61.084 \| fine	29.565 \| good	0.653 \| good	13.509 \| good	0.399 \| good
2026-08-12T14:00:00.000Z	64 \| moderate	15.801 \| fine	54.274 \| good	28.689 \| good	0.357 \| good	8.418 \| good	0.363 \| good
2026-08-12T15:00:00.000Z	60 \| moderate	14.264 \| fine	44.115 \| good	33.772 \| good	0.384 \| good	7.87 \| good	0.316 \| good
2026-08-12T16:00:00.000Z	58 \| moderate	12.919 \| fine	54.548 \| good	36.691 \| good	0.333 \| good	6.532 \| good	0.284 \| good
2026-08-12T17:00:00.000Z	52 \| moderate	10.324 \| good	41.714 \| good	38.624 \| good	0.332 \| good	4.555 \| good	0.258 \| good
2026-08-12T18:00:00.000Z	52 \| moderate	9.647 \| good	43.704 \| good	41.013 \| good	0.351 \| good	5.405 \| good	0.255 \| good
2026-08-12T19:00:00.000Z	52 \| moderate	10.064 \| good	39.971 \| good	45.186 \| good	0.27 \| good	5.128 \| good	0.276 \| good
2026-08-12T20:00:00.000Z	52 \| moderate	9.541 \| good	38.524 \| good	48.63 \| good	0.416 \| good	5.422 \| good	0.302 \| good
2026-08-12T21:00:00.000Z	54 \| moderate	11.407 \| good	37.925 \| good	49.194 \| good	0.315 \| good	2.854 \| good	0.224 \| good
2026-08-12T22:00:00.000Z	56 \| moderate	11.836 \| good	62.232 \| fine	51.7 \| good	0.403 \| good	4.66 \| good	0.302 \| good
2026-08-12T23:00:00.000Z	56 \| moderate	12.415 \| fine	48.215 \| good	45.285 \| good	0.369 \| good	3.045 \| good	0.31 \| good
2026-08-13T00:00:00.000Z	56 \| moderate	11.76 \| good	54.838 \| good	51.249 \| good	0.433 \| good	8.777 \| good	0.35 \| good
2026-08-13T01:00:00.000Z	56 \| moderate	12.471 \| fine	60.343 \| fine	45.955 \| good	0.267 \| good	9.136 \| good	0.35 \| good
2026-08-13T02:00:00.000Z	54 \| moderate	10.922 \| good	37.845 \| good	37.832 \| good	0.292 \| good	6.897 \| good	0.328 \| good
2026-08-13T03:00:00.000Z	54 \| moderate	11.092 \| good	46.036 \| good	41.704 \| good	0.546 \| good	7.451 \| good	0.342 \| good
2026-08-13T04:00:00.000Z	54 \| moderate	11.229 \| good	43.501 \| good	36.166 \| good	0.607 \| good	10.328 \| good	0.342 \| good
2026-08-13T05:00:00.000Z	52 \| moderate	9.807 \| good	48.856 \| good	30.808 \| good	0.588 \| good	8.218 \| good	0.304 \| good
2026-08-13T06:00:00.000Z	54 \| moderate	10.786 \| good	36.531 \| good	23.448 \| good	0.42 \| good	8.344 \| good	0.282 \| good
2026-08-13T07:00:00.000Z	54 \| moderate	10.715 \| good	48.755 \| good	20.276 \| good	0.42 \| good	8.282 \| good	0.282 \| good
2026-08-13T08:00:00.000Z	54 \| moderate	10.546 \| good	47.76 \| good	22.677 \| good	0.491 \| good	9.484 \| good	0.282 \| good
2026-08-13T08:00:00.000Z	54 \| moderate	10.546 \| good	47.76 \| good	22.677 \| good	0.491 \| good	9.484 \| good	0.282 \| good
2026-08-12T16:00:00.000Z	47 \| good	6.435 \| good	28.507 \| good	51.096 \| good	0.593 \| good	1.093 \| good	0.167 \| good
2026-08-12T17:00:00.000Z	58 \| moderate	8.654 \| good	37.72 \| good	56.977 \| fine	0.544 \| good	0.924 \| good	0.167 \| good
2026-08-12T18:00:00.000Z	58 \| moderate	10.279 \| good	45.331 \| good	56.783 \| fine	0.535 \| good	0.894 \| good	0.17 \| good
2026-08-12T19:00:00.000Z	54 \| moderate	11.003 \| good	48.48 \| good	54.621 \| good	0.548 \| good	0.949 \| good	0.175 \| good
2026-08-12T20:00:00.000Z	56 \| moderate	11.551 \| good	51.098 \| good	50.669 \| good	0.567 \| good	1.023 \| good	0.179 \| good
2026-08-12T21:00:00.000Z	56 \| moderate	11.739 \| good	52.036 \| good	50.435 \| good	0.582 \| good	1.186 \| good	0.182 \| good
2026-08-12T22:00:00.000Z	60 \| moderate	14.305 \| fine	64.275 \| fine	54.838 \| good	0.598 \| good	1.629 \| good	0.186 \| good
2026-08-12T23:00:00.000Z	62 \| moderate	15.202 \| fine	67.911 \| fine	52.691 \| good	0.607 \| good	4.277 \| good	0.209 \| good
2026-08-13T00:00:00.000Z	56 \| moderate	11.692 \| good	51.618 \| good	44.272 \| good	0.695 \| good	13.519 \| good	0.284 \| good
2026-08-13T01:00:00.000Z	52 \| moderate	10.339 \| good	45.978 \| good	36.078 \| good	0.813 \| good	22.338 \| good	0.351 \| good
2026-08-13T02:00:00.000Z	52 \| moderate	9.754 \| good	43.416 \| good	34.047 \| good	0.861 \| good	24.48 \| good	0.367 \| good
2026-08-13T03:00:00.000Z	54 \| moderate	10.978 \| good	48.7 \| good	32.956 \| good	0.829 \| good	22.104 \| good	0.349 \| good
2026-08-13T04:00:00.000Z	56 \| moderate	12.289 \| fine	55.133 \| fine	25.009 \| good	0.67 \| good	13.488 \| good	0.289 \| good
2026-08-13T05:00:00.000Z	56 \| moderate	11.964 \| good	53.527 \| good	17.458 \| good	0.5 \| good	7.722 \| good	0.243 \| good
2026-08-13T06:00:00.000Z	49 \| good	9.181 \| good	41.064 \| good	19.324 \| good	0.419 \| good	6.408 \| good	0.23 \| good
2026-08-13T07:00:00.000Z	33 \| good	6.321 \| good	28.208 \| good	21.422 \| good	0.364 \| good	5.069 \| good	0.218 \| good
2026-08-13T08:00:00.000Z	27 \| good	5.409 \| good	23.044 \| good	21.693 \| good	0.342 \| good	4.043 \| good	0.205 \| good
2026-08-13T09:00:00.000Z	33 \| good	6.155 \| good	27.37 \| good	21.682 \| good	0.417 \| good	3.589 \| good	0.196 \| good
2026-08-13T10:00:00.000Z	33 \| good	5.946 \| good	26.932 \| good	21.731 \| good	0.535 \| good	3.702 \| good	0.194 \| good
2026-08-13T11:00:00.000Z	38 \| good	6.642 \| good	29.868 \| good	20.387 \| good	0.626 \| good	4.116 \| good	0.198 \| good
2026-08-13T12:00:00.000Z	38 \| good	6.934 \| good	30.853 \| good	26.647 \| good	0.756 \| good	3.24 \| good	0.2 \| good
2026-08-13T13:00:00.000Z	44 \| good	8.148 \| good	35.6 \| good	33.44 \| good	0.736 \| good	2.614 \| good	0.203 \| good
2026-08-13T14:00:00.000Z	49 \| good	9.325 \| good	41.48 \| good	38.968 \| good	0.698 \| good	2.293 \| good	0.208 \| good
2026-08-13T15:00:00.000Z	52 \| moderate	9.917 \| good	44.326 \| good	42.908 \| good	0.651 \| good	1.806 \| good	0.21 \| good
2026-08-13T16:00:00.000Z	52 \| moderate	10.051 \| good	44.48 \| good	44.579 \| good	0.643 \| good	1.648 \| good	0.213 \| good
2026-08-13T17:00:00.000Z	52 \| moderate	10.375 \| good	45.726 \| good	44.891 \| good	0.625 \| good	1.413 \| good	0.214 \| good
2026-08-13T18:00:00.000Z	54 \| moderate	11.25 \| good	49.688 \| good	45.762 \| good	0.588 \| good	1.169 \| good	0.215 \| good
2026-08-13T19:00:00.000Z	56 \| moderate	11.58 \| good	51.179 \| good	45.308 \| good	0.579 \| good	1.182 \| good	0.218 \| good
2026-08-13T20:00:00.000Z	56 \| moderate	12.285 \| fine	55.376 \| fine	41.636 \| good	0.554 \| good	1.201 \| good	0.219 \| good
2026-08-13T21:00:00.000Z	56 \| moderate	12.456 \| fine	56.689 \| fine	39.502 \| good	0.517 \| good	1.245 \| good	0.221 \| good
2026-08-13T22:00:00.000Z	58 \| moderate	13.454 \| fine	60.761 \| fine	36.863 \| good	0.493 \| good	1.53 \| good	0.224 \| good
2026-08-13T23:00:00.000Z	60 \| moderate	14.411 \| fine	64.534 \| fine	34.746 \| good	0.504 \| good	2.914 \| good	0.235 \| good
2026-08-14T00:00:00.000Z	56 \| moderate	11.956 \| good	53.052 \| good	26.905 \| good	0.534 \| good	7.719 \| good	0.272 \| good
2026-08-14T01:00:00.000Z	56 \| moderate	11.568 \| good	51.493 \| good	23.633 \| good	0.583 \| good	11.82 \| good	0.305 \| good
2026-08-14T02:00:00.000Z	54 \| moderate	11.443 \| good	51.062 \| good	19.721 \| good	0.631 \| good	12.799 \| good	0.313 \| good
2026-08-14T03:00:00.000Z	52 \| moderate	10.177 \| good	45.045 \| good	18.006 \| good	0.708 \| good	14.225 \| good	0.325 \| good
2026-08-14T04:00:00.000Z	54 \| moderate	11.397 \| good	50.397 \| good	14.161 \| good	0.775 \| good	14.751 \| good	0.334 \| good
2026-08-14T05:00:00.000Z	49 \| good	9.446 \| good	42.129 \| good	9.465 \| good	0.821 \| good	13.564 \| good	0.331 \| good
2026-08-14T06:00:00.000Z	44 \| good	7.959 \| good	34.716 \| good	8.779 \| good	0.874 \| good	12.965 \| good	0.328 \| good
2026-08-14T07:00:00.000Z	38 \| good	6.666 \| good	29.858 \| good	10.621 \| good	0.985 \| good	13.17 \| good	0.332 \| good
2026-08-14T08:00:00.000Z	33 \| good	5.95 \| good	26.432 \| good	10.619 \| good	1.107 \| good	13.315 \| good	0.338 \| good
2026-08-14T09:00:00.000Z	38 \| good	6.86 \| good	30.079 \| good	8.139 \| good	1.146 \| good	12.587 \| good	0.337 \| good
2026-08-14T10:00:00.000Z	33 \| good	6.402 \| good	28.444 \| good	8.775 \| good	1.194 \| good	10.521 \| good	0.324 \| good
2026-08-14T11:00:00.000Z	33 \| good	6.227 \| good	27.731 \| good	8.972 \| good	1.172 \| good	8.337 \| good	0.305 \| good
2026-08-14T12:00:00.000Z	33 \| good	5.734 \| good	24.555 \| good	13.608 \| good	1.017 \| good	6.789 \| good	0.285 \| good
2026-08-14T13:00:00.000Z	27 \| good	5.335 \| good	23 \| good	21.777 \| good	0.846 \| good	4.478 \| good	0.235 \| good
2026-08-14T14:00:00.000Z	33 \| good	5.538 \| good	23.726 \| good	29.114 \| good	0.776 \| good	2.817 \| good	0.202 \| good
2026-08-14T15:00:00.000Z	33 \| good	5.709 \| good	24.754 \| good	35.21 \| good	0.732 \| good	1.803 \| good	0.187 \| good

Current air quality index in West Chester, Pennsylvania today

Common air pollutants in West Chester, Pennsylvania

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live West Chester, Pennsylvania air quality forecast and history

Empower business decisions with accurate air quality data

Real-time air quality map: Monitor AQI near West Chester, Pennsylvania

Air quality in nearby cities

West Goshen, Pennsylvania

East Bradford, Pennsylvania

Westtown, Pennsylvania

East Goshen, Pennsylvania

West Whiteland, Pennsylvania

Willistown, Pennsylvania

How accurate is Pennsylvania, USA air quality data?

Air quality levels in US

Frequently asked questions

How frequently does the air quality data for West Chester, Pennsylvania get updated?

What time in the past 24 hours saw the poorest air quality in West Chester, Pennsylvania?

When was air quality in West Chester, Pennsylvania the best over the past 24 hours?

What is the air quality in West Chester, Pennsylvania right now?

What pollutant is most frequently found in West Chester, Pennsylvania?

What can I do if the air quality in West Chester, Pennsylvania is poor?

What is the PM2.5 concentration in West Chester, Pennsylvania right now?

What is the current level of PM10 in West Chester, Pennsylvania?

What is the current level of carbon monoxide (CO) in West Chester, Pennsylvania?

What is the current level of sulfur dioxide (SO2) in West Chester, Pennsylvania?

What is the current level of ozone (O3) in West Chester, Pennsylvania?

What is the current level of nitrogen dioxide (NO2) in West Chester, Pennsylvania?

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 West Chester, Pennsylvania right now?

What is the current level of PM₁₀ in West Chester, Pennsylvania?

What is the current level of sulfur dioxide (SO₂) in West Chester, Pennsylvania?

What is the current level of ozone (O₃) in West Chester, Pennsylvania?

What is the current level of nitrogen dioxide (NO₂) in West Chester, Pennsylvania?