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

West Chester, Pennsylvania currently has a PM10 concentration of 15.141 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 0.791 ppb.

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

West Chester, Pennsylvania currently has an ozone (O3) concentration of 24.985 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 24.672 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 3.527 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)

Good

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)

3.53 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

15.14 μg/m³

155

255

425

605+

Ozone (O₃)

24.98 ppb

201

201+

Sulfur Dioxide (SO₂)

0.79 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

24.67 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.33 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
2026-01-21T11:00:00.000Z	58 \| moderate	13.062 \| fine	56.071 \| fine	3.158 \| good	0.493 \| good	23.965 \| good	0.635 \| good
2026-01-21T12:00:00.000Z	56 \| moderate	12.32 \| fine	44.876 \| good	5.529 \| good	0.486 \| good	25.255 \| good	0.658 \| good
2026-01-21T13:00:00.000Z	60 \| moderate	13.869 \| fine	48.569 \| good	4.756 \| good	0.55 \| good	26.995 \| good	0.699 \| good
2026-01-21T14:00:00.000Z	58 \| moderate	12.504 \| fine	38.885 \| good	6.02 \| good	0.646 \| good	38.132 \| good	0.716 \| good
2026-01-21T15:00:00.000Z	54 \| moderate	11.378 \| good	39.338 \| good	9.481 \| good	0.699 \| good	26.959 \| good	0.821 \| good
2026-01-21T16:00:00.000Z	52 \| moderate	10.397 \| good	42.715 \| good	15.127 \| good	0.703 \| good	18.567 \| good	0.608 \| good
2026-01-21T17:00:00.000Z	38 \| good	7.153 \| good	34.703 \| good	20.529 \| good	0.965 \| good	17.121 \| good	0.729 \| good
2026-01-21T18:00:00.000Z	35 \| good	6.03 \| good	38.076 \| good	25.439 \| good	0.995 \| good	9.605 \| good	0.293 \| good
2026-01-21T19:00:00.000Z	33 \| good	5.632 \| good	21.551 \| good	29.399 \| good	0.791 \| good	6.006 \| good	0.275 \| good
2026-01-21T20:00:00.000Z	30 \| good	4.458 \| good	18.258 \| good	32.458 \| good	0.485 \| good	4.76 \| good	0.253 \| good
2026-01-21T21:00:00.000Z	32 \| good	4.338 \| good	16.781 \| good	34.674 \| good	0.381 \| good	6.235 \| good	0.347 \| good
2026-01-21T22:00:00.000Z	33 \| good	5.073 \| good	21.119 \| good	35.689 \| good	0.393 \| good	7.118 \| good	0.301 \| good
2026-01-21T23:00:00.000Z	31 \| good	3.665 \| good	17.61 \| good	33.437 \| good	0.362 \| good	7.95 \| good	0.348 \| good
2026-01-22T00:00:00.000Z	31 \| good	4.424 \| good	15.452 \| good	33.72 \| good	0.376 \| good	13.254 \| good	0.327 \| good
2026-01-22T01:00:00.000Z	33 \| good	4.14 \| good	20.478 \| good	36.222 \| good	0.381 \| good	13.177 \| good	0.309 \| good
2026-01-22T02:00:00.000Z	33 \| good	5.621 \| good	23.073 \| good	32.826 \| good	0.436 \| good	14.648 \| good	0.338 \| good
2026-01-22T03:00:00.000Z	29 \| good	5.047 \| good	23.547 \| good	30.87 \| good	0.378 \| good	10.548 \| good	0.33 \| good
2026-01-22T04:00:00.000Z	31 \| good	4.851 \| good	19.476 \| good	34.068 \| good	0.381 \| good	10.585 \| good	0.322 \| good
2026-01-22T05:00:00.000Z	27 \| good	5.48 \| good	23.715 \| good	29.26 \| good	0.336 \| good	11.809 \| good	0.34 \| good
2026-01-22T06:00:00.000Z	27 \| good	5.157 \| good	21.122 \| good	28.768 \| good	0.374 \| good	9.834 \| good	0.311 \| good
2026-01-22T07:00:00.000Z	27 \| good	5.242 \| good	21.75 \| good	26.757 \| good	0.373 \| good	8.999 \| good	0.282 \| good
2026-01-22T08:00:00.000Z	33 \| good	6.36 \| good	28.201 \| good	28.247 \| good	0.512 \| good	9.211 \| good	0.282 \| good
2026-01-22T09:00:00.000Z	44 \| good	7.747 \| good	27.916 \| good	26.801 \| good	0.401 \| good	11.213 \| good	0.264 \| good
2026-01-22T10:00:00.000Z	44 \| good	8.153 \| good	40.279 \| good	26.161 \| good	0.374 \| good	11.395 \| good	0.29 \| good
2026-01-22T11:00:00.000Z	49 \| good	8.701 \| good	38.414 \| good	25.249 \| good	0.381 \| good	17.357 \| good	0.345 \| good
2026-01-22T12:00:00.000Z	52 \| moderate	10.312 \| good	41.6 \| good	24.537 \| good	0.448 \| good	23.438 \| good	0.378 \| good
2026-01-22T13:00:00.000Z	52 \| moderate	10.367 \| good	44.968 \| good	24.412 \| good	0.485 \| good	25.3 \| good	0.418 \| good
2026-01-22T14:00:00.000Z	52 \| moderate	10.252 \| good	46.601 \| good	29.646 \| good	0.736 \| good	24.83 \| good	0.511 \| good
2026-01-22T15:00:00.000Z	56 \| moderate	12.488 \| fine	47.155 \| good	28.138 \| good	0.589 \| good	18.187 \| good	0.53 \| good
2026-01-22T16:00:00.000Z	54 \| moderate	11.361 \| good	39.487 \| good	31.329 \| good	0.508 \| good	13.25 \| good	0.451 \| good
2026-01-22T17:00:00.000Z	54 \| moderate	10.951 \| good	49.478 \| good	33.549 \| good	0.465 \| good	8.188 \| good	0.34 \| good
2026-01-22T18:00:00.000Z	49 \| good	9.168 \| good	43.523 \| good	37.857 \| good	0.424 \| good	5.636 \| good	0.274 \| good
2026-01-22T19:00:00.000Z	38 \| good	7.314 \| good	35.722 \| good	36.608 \| good	0.367 \| good	5.344 \| good	0.274 \| good
2026-01-22T20:00:00.000Z	44 \| good	7.653 \| good	34.182 \| good	37.947 \| good	0.315 \| good	6.149 \| good	0.274 \| good
2026-01-22T21:00:00.000Z	44 \| good	7.783 \| good	30.973 \| good	36.631 \| good	0.312 \| good	7.261 \| good	0.369 \| good
2026-01-22T22:00:00.000Z	44 \| good	7.886 \| good	35.846 \| good	36.991 \| good	0.338 \| good	7.569 \| good	0.315 \| good
2026-01-22T23:00:00.000Z	38 \| good	6.588 \| good	31.821 \| good	37.835 \| good	0.372 \| good	11.14 \| good	0.356 \| good
2026-01-23T00:00:00.000Z	38 \| good	6.927 \| good	30.816 \| good	33.352 \| good	0.363 \| good	12.936 \| good	0.384 \| good
2026-01-23T01:00:00.000Z	38 \| good	7.481 \| good	33.752 \| good	35.867 \| good	0.385 \| good	16.225 \| good	0.402 \| good
2026-01-23T02:00:00.000Z	38 \| good	7.226 \| good	23.89 \| good	36.739 \| good	0.408 \| good	16.841 \| good	0.402 \| good
2026-01-23T03:00:00.000Z	44 \| good	8.216 \| good	41.725 \| good	31.3 \| good	0.528 \| good	18.318 \| good	0.334 \| good
2026-01-23T04:00:00.000Z	44 \| good	8.254 \| good	35.657 \| good	30.463 \| good	0.521 \| good	14.4 \| good	0.334 \| good
2026-01-23T05:00:00.000Z	44 \| good	7.539 \| good	32.682 \| good	28.21 \| good	1.057 \| good	15.291 \| good	0.3 \| good
2026-01-23T06:00:00.000Z	31 \| good	4.479 \| good	22.353 \| good	33.557 \| good	1.902 \| good	15.308 \| good	0.282 \| good
2026-01-23T07:00:00.000Z	28 \| good	3.697 \| good	15.515 \| good	30.249 \| good	1.833 \| good	16.145 \| good	0.264 \| good
2026-01-23T08:00:00.000Z	30 \| good	3.208 \| good	12.965 \| good	32.13 \| good	2.46 \| good	23.524 \| good	0.274 \| good
2026-01-23T09:00:00.000Z	24 \| good	3.527 \| good	15.141 \| good	24.985 \| good	0.791 \| good	24.672 \| good	0.327 \| good
2026-01-23T10:00:00.000Z	24 \| good	3.527 \| good	15.141 \| good	24.985 \| good	0.791 \| good	24.672 \| good	0.327 \| good
2026-01-23T11:00:00.000Z	54 \| moderate	10.526 \| good	46.641 \| good	15.586 \| good	2.153 \| good	8.003 \| good	0.212 \| good
2026-01-23T12:00:00.000Z	52 \| moderate	10.361 \| good	46.143 \| good	16.822 \| good	2.182 \| good	8.673 \| good	0.214 \| good
2026-01-23T13:00:00.000Z	54 \| moderate	10.733 \| good	47.585 \| good	18.812 \| good	2.581 \| good	7.663 \| good	0.207 \| good
2026-01-23T14:00:00.000Z	52 \| moderate	9.748 \| good	43.425 \| good	22.539 \| good	2.981 \| good	6.654 \| good	0.2 \| good
2026-01-23T15:00:00.000Z	44 \| good	7.868 \| good	34.411 \| good	27.981 \| good	3.38 \| good	5.644 \| good	0.194 \| good
2026-01-23T16:00:00.000Z	38 \| good	7.355 \| good	32.43 \| good	31.019 \| good	3.09 \| good	4.832 \| good	0.187 \| good
2026-01-23T17:00:00.000Z	38 \| good	7.22 \| good	32 \| good	32.96 \| good	2.8 \| good	4.02 \| good	0.181 \| good
2026-01-23T18:00:00.000Z	44 \| good	7.517 \| good	33.11 \| good	33.839 \| good	2.511 \| good	3.208 \| good	0.174 \| good
2026-01-23T19:00:00.000Z	44 \| good	7.934 \| good	34.656 \| good	35.009 \| good	2.394 \| good	3.424 \| good	0.17 \| good
2026-01-23T20:00:00.000Z	34 \| good	6.485 \| good	28.909 \| good	37.018 \| good	2.278 \| good	3.64 \| good	0.166 \| good
2026-01-23T21:00:00.000Z	38 \| good	7.106 \| good	31.621 \| good	36.217 \| good	2.161 \| good	3.856 \| good	0.162 \| good
2026-01-23T22:00:00.000Z	33 \| good	4.167 \| good	18.302 \| good	36.383 \| good	1.825 \| good	3.714 \| good	0.161 \| good
2026-01-23T23:00:00.000Z	32 \| good	4.066 \| good	17.965 \| good	34.811 \| good	1.489 \| good	3.573 \| good	0.16 \| good
2026-01-24T00:00:00.000Z	28 \| good	4.398 \| good	19.063 \| good	30.224 \| good	1.153 \| good	3.431 \| good	0.159 \| good
2026-01-24T01:00:00.000Z	30 \| good	3.619 \| good	15.898 \| good	32.166 \| good	1.067 \| good	3.1 \| good	0.154 \| good
2026-01-24T02:00:00.000Z	28 \| good	2.902 \| good	11.982 \| good	30.245 \| good	0.981 \| good	2.769 \| good	0.15 \| good
2026-01-24T03:00:00.000Z	28 \| good	2.358 \| good	9.805 \| good	29.807 \| good	0.896 \| good	2.438 \| good	0.145 \| good
2026-01-24T04:00:00.000Z	27 \| good	2.476 \| good	10.071 \| good	29.456 \| good	0.935 \| good	2.281 \| good	0.143 \| good
2026-01-24T05:00:00.000Z	26 \| good	3.097 \| good	13.001 \| good	28.048 \| good	0.974 \| good	2.124 \| good	0.142 \| good
2026-01-24T06:00:00.000Z	25 \| good	3.726 \| good	16.176 \| good	27.207 \| good	1.013 \| good	1.967 \| good	0.14 \| good
2026-01-24T07:00:00.000Z	24 \| good	4.008 \| good	17.592 \| good	25.97 \| good	1.034 \| good	1.934 \| good	0.141 \| good
2026-01-24T08:00:00.000Z	27 \| good	4.672 \| good	20.252 \| good	24.835 \| good	1.055 \| good	1.901 \| good	0.142 \| good
2026-01-24T09:00:00.000Z	27 \| good	5.03 \| good	21.65 \| good	24.487 \| good	1.077 \| good	1.868 \| good	0.143 \| good
2026-01-24T10:00:00.000Z	27 \| good	4.593 \| good	20.11 \| good	24.087 \| good	1.081 \| good	2.246 \| good	0.147 \| good
2026-01-24T11:00:00.000Z	22 \| good	4.351 \| good	19.067 \| good	22.489 \| good	1.085 \| good	2.624 \| good	0.15 \| good
2026-01-24T12:00:00.000Z	27 \| good	4.673 \| good	20.115 \| good	21.904 \| good	1.09 \| good	3.003 \| good	0.154 \| good
2026-01-24T13:00:00.000Z	27 \| good	5.323 \| good	22.981 \| good	22.761 \| good	1.115 \| good	2.899 \| good	0.157 \| good
2026-01-24T14:00:00.000Z	27 \| good	5.336 \| good	22.905 \| good	23.521 \| good	1.141 \| good	2.795 \| good	0.16 \| good
2026-01-24T15:00:00.000Z	27 \| good	5.339 \| good	22.978 \| good	24.456 \| good	1.166 \| good	2.691 \| good	0.163 \| good
2026-01-24T16:00:00.000Z	33 \| good	5.618 \| good	24.101 \| good	25.831 \| good	1.206 \| good	2.518 \| good	0.162 \| good
2026-01-24T17:00:00.000Z	33 \| good	6.174 \| good	27.664 \| good	27.305 \| good	1.245 \| good	2.345 \| good	0.161 \| good
2026-01-24T18:00:00.000Z	33 \| good	6.14 \| good	27.56 \| good	27.967 \| good	1.284 \| good	2.171 \| good	0.161 \| good
2026-01-24T19:00:00.000Z	27 \| good	5.43 \| good	23.676 \| good	28.045 \| good	1.36 \| good	2.641 \| good	0.161 \| good
2026-01-24T20:00:00.000Z	26 \| good	3.83 \| good	16.7 \| good	28.308 \| good	1.437 \| good	3.111 \| good	0.162 \| good
2026-01-24T21:00:00.000Z	29 \| good	3.465 \| good	15.528 \| good	30.69 \| good	1.513 \| good	3.58 \| good	0.163 \| good
2026-01-24T22:00:00.000Z	29 \| good	3 \| good	12 \| good	30.817 \| good	1.532 \| good	4.246 \| good	0.167 \| good
2026-01-24T23:00:00.000Z	29 \| good	3.444 \| good	15.238 \| good	30.77 \| good	1.55 \| good	4.912 \| good	0.171 \| good
2026-01-25T00:00:00.000Z	26 \| good	2.992 \| good	12.062 \| good	27.885 \| good	1.569 \| good	5.578 \| good	0.176 \| good
2026-01-25T01:00:00.000Z	27 \| good	3.567 \| good	15.836 \| good	28.924 \| good	1.404 \| good	5.432 \| good	0.174 \| good
2026-01-25T02:00:00.000Z	27 \| good	3.87 \| good	16.929 \| good	28.688 \| good	1.238 \| good	5.286 \| good	0.173 \| good
2026-01-25T03:00:00.000Z	27 \| good	4.219 \| good	18.575 \| good	28.919 \| good	1.073 \| good	5.141 \| good	0.172 \| good
2026-01-25T04:00:00.000Z	26 \| good	4.358 \| good	19.038 \| good	28.153 \| good	1.022 \| good	4.938 \| good	0.17 \| good
2026-01-25T05:00:00.000Z	27 \| good	4.764 \| good	20.476 \| good	26.31 \| good	0.972 \| good	4.736 \| good	0.168 \| good
2026-01-25T06:00:00.000Z	27 \| good	4.616 \| good	4.844 \| good	28.252 \| good	0.917 \| good	4.56 \| good	0.166 \| good
2026-01-25T07:00:00.000Z	33 \| good	6.382 \| good	28.518 \| good	24.141 \| good	0.944 \| good	4.39 \| good	0.164 \| good
2026-01-25T08:00:00.000Z	38 \| good	7.147 \| good	31.602 \| good	22.472 \| good	0.966 \| good	4.246 \| good	0.162 \| good
2026-01-25T09:00:00.000Z	38 \| good	7.008 \| good	30.771 \| good	23.805 \| good	0.988 \| good	4.102 \| good	0.16 \| good
2026-01-25T10:00:00.000Z	38 \| good	6.834 \| good	30.129 \| good	23.863 \| good	1.045 \| good	4.792 \| good	0.163 \| good

West Chester

Empower business decisions with accurate air quality data

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

0.34ppm

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

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

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Frequently asked questions

How frequently 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 03:00:00, 2026-01-22.

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 09:00:00 on 2026-01-23.

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

The air quality in West Chester, Pennsylvania right now is Good, with an AQI of 24.

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

In West Chester, Pennsylvania, NO2 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 3.527 μg/m³.

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

West Chester, Pennsylvania currently has a PM₁₀ concentration of 15.141 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 0.327 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 0.791 ppb.

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

West Chester, Pennsylvania currently has an ozone (O₃) concentration of 24.985 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 24.672 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-21T11:00:00.000Z	58 \| moderate	13.062 \| fine	56.071 \| fine	3.158 \| good	0.493 \| good	23.965 \| good	0.635 \| good
2026-01-21T12:00:00.000Z	56 \| moderate	12.32 \| fine	44.876 \| good	5.529 \| good	0.486 \| good	25.255 \| good	0.658 \| good
2026-01-21T13:00:00.000Z	60 \| moderate	13.869 \| fine	48.569 \| good	4.756 \| good	0.55 \| good	26.995 \| good	0.699 \| good
2026-01-21T14:00:00.000Z	58 \| moderate	12.504 \| fine	38.885 \| good	6.02 \| good	0.646 \| good	38.132 \| good	0.716 \| good
2026-01-21T15:00:00.000Z	54 \| moderate	11.378 \| good	39.338 \| good	9.481 \| good	0.699 \| good	26.959 \| good	0.821 \| good
2026-01-21T16:00:00.000Z	52 \| moderate	10.397 \| good	42.715 \| good	15.127 \| good	0.703 \| good	18.567 \| good	0.608 \| good
2026-01-21T17:00:00.000Z	38 \| good	7.153 \| good	34.703 \| good	20.529 \| good	0.965 \| good	17.121 \| good	0.729 \| good
2026-01-21T18:00:00.000Z	35 \| good	6.03 \| good	38.076 \| good	25.439 \| good	0.995 \| good	9.605 \| good	0.293 \| good
2026-01-21T19:00:00.000Z	33 \| good	5.632 \| good	21.551 \| good	29.399 \| good	0.791 \| good	6.006 \| good	0.275 \| good
2026-01-21T20:00:00.000Z	30 \| good	4.458 \| good	18.258 \| good	32.458 \| good	0.485 \| good	4.76 \| good	0.253 \| good
2026-01-21T21:00:00.000Z	32 \| good	4.338 \| good	16.781 \| good	34.674 \| good	0.381 \| good	6.235 \| good	0.347 \| good
2026-01-21T22:00:00.000Z	33 \| good	5.073 \| good	21.119 \| good	35.689 \| good	0.393 \| good	7.118 \| good	0.301 \| good
2026-01-21T23:00:00.000Z	31 \| good	3.665 \| good	17.61 \| good	33.437 \| good	0.362 \| good	7.95 \| good	0.348 \| good
2026-01-22T00:00:00.000Z	31 \| good	4.424 \| good	15.452 \| good	33.72 \| good	0.376 \| good	13.254 \| good	0.327 \| good
2026-01-22T01:00:00.000Z	33 \| good	4.14 \| good	20.478 \| good	36.222 \| good	0.381 \| good	13.177 \| good	0.309 \| good
2026-01-22T02:00:00.000Z	33 \| good	5.621 \| good	23.073 \| good	32.826 \| good	0.436 \| good	14.648 \| good	0.338 \| good
2026-01-22T03:00:00.000Z	29 \| good	5.047 \| good	23.547 \| good	30.87 \| good	0.378 \| good	10.548 \| good	0.33 \| good
2026-01-22T04:00:00.000Z	31 \| good	4.851 \| good	19.476 \| good	34.068 \| good	0.381 \| good	10.585 \| good	0.322 \| good
2026-01-22T05:00:00.000Z	27 \| good	5.48 \| good	23.715 \| good	29.26 \| good	0.336 \| good	11.809 \| good	0.34 \| good
2026-01-22T06:00:00.000Z	27 \| good	5.157 \| good	21.122 \| good	28.768 \| good	0.374 \| good	9.834 \| good	0.311 \| good
2026-01-22T07:00:00.000Z	27 \| good	5.242 \| good	21.75 \| good	26.757 \| good	0.373 \| good	8.999 \| good	0.282 \| good
2026-01-22T08:00:00.000Z	33 \| good	6.36 \| good	28.201 \| good	28.247 \| good	0.512 \| good	9.211 \| good	0.282 \| good
2026-01-22T09:00:00.000Z	44 \| good	7.747 \| good	27.916 \| good	26.801 \| good	0.401 \| good	11.213 \| good	0.264 \| good
2026-01-22T10:00:00.000Z	44 \| good	8.153 \| good	40.279 \| good	26.161 \| good	0.374 \| good	11.395 \| good	0.29 \| good
2026-01-22T11:00:00.000Z	49 \| good	8.701 \| good	38.414 \| good	25.249 \| good	0.381 \| good	17.357 \| good	0.345 \| good
2026-01-22T12:00:00.000Z	52 \| moderate	10.312 \| good	41.6 \| good	24.537 \| good	0.448 \| good	23.438 \| good	0.378 \| good
2026-01-22T13:00:00.000Z	52 \| moderate	10.367 \| good	44.968 \| good	24.412 \| good	0.485 \| good	25.3 \| good	0.418 \| good
2026-01-22T14:00:00.000Z	52 \| moderate	10.252 \| good	46.601 \| good	29.646 \| good	0.736 \| good	24.83 \| good	0.511 \| good
2026-01-22T15:00:00.000Z	56 \| moderate	12.488 \| fine	47.155 \| good	28.138 \| good	0.589 \| good	18.187 \| good	0.53 \| good
2026-01-22T16:00:00.000Z	54 \| moderate	11.361 \| good	39.487 \| good	31.329 \| good	0.508 \| good	13.25 \| good	0.451 \| good
2026-01-22T17:00:00.000Z	54 \| moderate	10.951 \| good	49.478 \| good	33.549 \| good	0.465 \| good	8.188 \| good	0.34 \| good
2026-01-22T18:00:00.000Z	49 \| good	9.168 \| good	43.523 \| good	37.857 \| good	0.424 \| good	5.636 \| good	0.274 \| good
2026-01-22T19:00:00.000Z	38 \| good	7.314 \| good	35.722 \| good	36.608 \| good	0.367 \| good	5.344 \| good	0.274 \| good
2026-01-22T20:00:00.000Z	44 \| good	7.653 \| good	34.182 \| good	37.947 \| good	0.315 \| good	6.149 \| good	0.274 \| good
2026-01-22T21:00:00.000Z	44 \| good	7.783 \| good	30.973 \| good	36.631 \| good	0.312 \| good	7.261 \| good	0.369 \| good
2026-01-22T22:00:00.000Z	44 \| good	7.886 \| good	35.846 \| good	36.991 \| good	0.338 \| good	7.569 \| good	0.315 \| good
2026-01-22T23:00:00.000Z	38 \| good	6.588 \| good	31.821 \| good	37.835 \| good	0.372 \| good	11.14 \| good	0.356 \| good
2026-01-23T00:00:00.000Z	38 \| good	6.927 \| good	30.816 \| good	33.352 \| good	0.363 \| good	12.936 \| good	0.384 \| good
2026-01-23T01:00:00.000Z	38 \| good	7.481 \| good	33.752 \| good	35.867 \| good	0.385 \| good	16.225 \| good	0.402 \| good
2026-01-23T02:00:00.000Z	38 \| good	7.226 \| good	23.89 \| good	36.739 \| good	0.408 \| good	16.841 \| good	0.402 \| good
2026-01-23T03:00:00.000Z	44 \| good	8.216 \| good	41.725 \| good	31.3 \| good	0.528 \| good	18.318 \| good	0.334 \| good
2026-01-23T04:00:00.000Z	44 \| good	8.254 \| good	35.657 \| good	30.463 \| good	0.521 \| good	14.4 \| good	0.334 \| good
2026-01-23T05:00:00.000Z	44 \| good	7.539 \| good	32.682 \| good	28.21 \| good	1.057 \| good	15.291 \| good	0.3 \| good
2026-01-23T06:00:00.000Z	31 \| good	4.479 \| good	22.353 \| good	33.557 \| good	1.902 \| good	15.308 \| good	0.282 \| good
2026-01-23T07:00:00.000Z	28 \| good	3.697 \| good	15.515 \| good	30.249 \| good	1.833 \| good	16.145 \| good	0.264 \| good
2026-01-23T08:00:00.000Z	30 \| good	3.208 \| good	12.965 \| good	32.13 \| good	2.46 \| good	23.524 \| good	0.274 \| good
2026-01-23T09:00:00.000Z	24 \| good	3.527 \| good	15.141 \| good	24.985 \| good	0.791 \| good	24.672 \| good	0.327 \| good
2026-01-23T10:00:00.000Z	24 \| good	3.527 \| good	15.141 \| good	24.985 \| good	0.791 \| good	24.672 \| good	0.327 \| good
2026-01-23T11:00:00.000Z	54 \| moderate	10.526 \| good	46.641 \| good	15.586 \| good	2.153 \| good	8.003 \| good	0.212 \| good
2026-01-23T12:00:00.000Z	52 \| moderate	10.361 \| good	46.143 \| good	16.822 \| good	2.182 \| good	8.673 \| good	0.214 \| good
2026-01-23T13:00:00.000Z	54 \| moderate	10.733 \| good	47.585 \| good	18.812 \| good	2.581 \| good	7.663 \| good	0.207 \| good
2026-01-23T14:00:00.000Z	52 \| moderate	9.748 \| good	43.425 \| good	22.539 \| good	2.981 \| good	6.654 \| good	0.2 \| good
2026-01-23T15:00:00.000Z	44 \| good	7.868 \| good	34.411 \| good	27.981 \| good	3.38 \| good	5.644 \| good	0.194 \| good
2026-01-23T16:00:00.000Z	38 \| good	7.355 \| good	32.43 \| good	31.019 \| good	3.09 \| good	4.832 \| good	0.187 \| good
2026-01-23T17:00:00.000Z	38 \| good	7.22 \| good	32 \| good	32.96 \| good	2.8 \| good	4.02 \| good	0.181 \| good
2026-01-23T18:00:00.000Z	44 \| good	7.517 \| good	33.11 \| good	33.839 \| good	2.511 \| good	3.208 \| good	0.174 \| good
2026-01-23T19:00:00.000Z	44 \| good	7.934 \| good	34.656 \| good	35.009 \| good	2.394 \| good	3.424 \| good	0.17 \| good
2026-01-23T20:00:00.000Z	34 \| good	6.485 \| good	28.909 \| good	37.018 \| good	2.278 \| good	3.64 \| good	0.166 \| good
2026-01-23T21:00:00.000Z	38 \| good	7.106 \| good	31.621 \| good	36.217 \| good	2.161 \| good	3.856 \| good	0.162 \| good
2026-01-23T22:00:00.000Z	33 \| good	4.167 \| good	18.302 \| good	36.383 \| good	1.825 \| good	3.714 \| good	0.161 \| good
2026-01-23T23:00:00.000Z	32 \| good	4.066 \| good	17.965 \| good	34.811 \| good	1.489 \| good	3.573 \| good	0.16 \| good
2026-01-24T00:00:00.000Z	28 \| good	4.398 \| good	19.063 \| good	30.224 \| good	1.153 \| good	3.431 \| good	0.159 \| good
2026-01-24T01:00:00.000Z	30 \| good	3.619 \| good	15.898 \| good	32.166 \| good	1.067 \| good	3.1 \| good	0.154 \| good
2026-01-24T02:00:00.000Z	28 \| good	2.902 \| good	11.982 \| good	30.245 \| good	0.981 \| good	2.769 \| good	0.15 \| good
2026-01-24T03:00:00.000Z	28 \| good	2.358 \| good	9.805 \| good	29.807 \| good	0.896 \| good	2.438 \| good	0.145 \| good
2026-01-24T04:00:00.000Z	27 \| good	2.476 \| good	10.071 \| good	29.456 \| good	0.935 \| good	2.281 \| good	0.143 \| good
2026-01-24T05:00:00.000Z	26 \| good	3.097 \| good	13.001 \| good	28.048 \| good	0.974 \| good	2.124 \| good	0.142 \| good
2026-01-24T06:00:00.000Z	25 \| good	3.726 \| good	16.176 \| good	27.207 \| good	1.013 \| good	1.967 \| good	0.14 \| good
2026-01-24T07:00:00.000Z	24 \| good	4.008 \| good	17.592 \| good	25.97 \| good	1.034 \| good	1.934 \| good	0.141 \| good
2026-01-24T08:00:00.000Z	27 \| good	4.672 \| good	20.252 \| good	24.835 \| good	1.055 \| good	1.901 \| good	0.142 \| good
2026-01-24T09:00:00.000Z	27 \| good	5.03 \| good	21.65 \| good	24.487 \| good	1.077 \| good	1.868 \| good	0.143 \| good
2026-01-24T10:00:00.000Z	27 \| good	4.593 \| good	20.11 \| good	24.087 \| good	1.081 \| good	2.246 \| good	0.147 \| good
2026-01-24T11:00:00.000Z	22 \| good	4.351 \| good	19.067 \| good	22.489 \| good	1.085 \| good	2.624 \| good	0.15 \| good
2026-01-24T12:00:00.000Z	27 \| good	4.673 \| good	20.115 \| good	21.904 \| good	1.09 \| good	3.003 \| good	0.154 \| good
2026-01-24T13:00:00.000Z	27 \| good	5.323 \| good	22.981 \| good	22.761 \| good	1.115 \| good	2.899 \| good	0.157 \| good
2026-01-24T14:00:00.000Z	27 \| good	5.336 \| good	22.905 \| good	23.521 \| good	1.141 \| good	2.795 \| good	0.16 \| good
2026-01-24T15:00:00.000Z	27 \| good	5.339 \| good	22.978 \| good	24.456 \| good	1.166 \| good	2.691 \| good	0.163 \| good
2026-01-24T16:00:00.000Z	33 \| good	5.618 \| good	24.101 \| good	25.831 \| good	1.206 \| good	2.518 \| good	0.162 \| good
2026-01-24T17:00:00.000Z	33 \| good	6.174 \| good	27.664 \| good	27.305 \| good	1.245 \| good	2.345 \| good	0.161 \| good
2026-01-24T18:00:00.000Z	33 \| good	6.14 \| good	27.56 \| good	27.967 \| good	1.284 \| good	2.171 \| good	0.161 \| good
2026-01-24T19:00:00.000Z	27 \| good	5.43 \| good	23.676 \| good	28.045 \| good	1.36 \| good	2.641 \| good	0.161 \| good
2026-01-24T20:00:00.000Z	26 \| good	3.83 \| good	16.7 \| good	28.308 \| good	1.437 \| good	3.111 \| good	0.162 \| good
2026-01-24T21:00:00.000Z	29 \| good	3.465 \| good	15.528 \| good	30.69 \| good	1.513 \| good	3.58 \| good	0.163 \| good
2026-01-24T22:00:00.000Z	29 \| good	3 \| good	12 \| good	30.817 \| good	1.532 \| good	4.246 \| good	0.167 \| good
2026-01-24T23:00:00.000Z	29 \| good	3.444 \| good	15.238 \| good	30.77 \| good	1.55 \| good	4.912 \| good	0.171 \| good
2026-01-25T00:00:00.000Z	26 \| good	2.992 \| good	12.062 \| good	27.885 \| good	1.569 \| good	5.578 \| good	0.176 \| good
2026-01-25T01:00:00.000Z	27 \| good	3.567 \| good	15.836 \| good	28.924 \| good	1.404 \| good	5.432 \| good	0.174 \| good
2026-01-25T02:00:00.000Z	27 \| good	3.87 \| good	16.929 \| good	28.688 \| good	1.238 \| good	5.286 \| good	0.173 \| good
2026-01-25T03:00:00.000Z	27 \| good	4.219 \| good	18.575 \| good	28.919 \| good	1.073 \| good	5.141 \| good	0.172 \| good
2026-01-25T04:00:00.000Z	26 \| good	4.358 \| good	19.038 \| good	28.153 \| good	1.022 \| good	4.938 \| good	0.17 \| good
2026-01-25T05:00:00.000Z	27 \| good	4.764 \| good	20.476 \| good	26.31 \| good	0.972 \| good	4.736 \| good	0.168 \| good
2026-01-25T06:00:00.000Z	27 \| good	4.616 \| good	4.844 \| good	28.252 \| good	0.917 \| good	4.56 \| good	0.166 \| good
2026-01-25T07:00:00.000Z	33 \| good	6.382 \| good	28.518 \| good	24.141 \| good	0.944 \| good	4.39 \| good	0.164 \| good
2026-01-25T08:00:00.000Z	38 \| good	7.147 \| good	31.602 \| good	22.472 \| good	0.966 \| good	4.246 \| good	0.162 \| good
2026-01-25T09:00:00.000Z	38 \| good	7.008 \| good	30.771 \| good	23.805 \| good	0.988 \| good	4.102 \| good	0.16 \| good
2026-01-25T10:00:00.000Z	38 \| good	6.834 \| good	30.129 \| good	23.863 \| good	1.045 \| good	4.792 \| good	0.163 \| 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?