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

West Chester, Pennsylvania currently has a PM10 concentration of 54.326 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 1.131 ppb.

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

West Chester, Pennsylvania currently has an ozone (O3) concentration of 5.945 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 17.109 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 26.915 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)

26.91 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

54.33 μg/m³

155

255

425

605+

Ozone (O₃)

5.95 ppb

201

201+

Sulfur Dioxide (SO₂)

1.13 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

17.11 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.68 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
2025-12-05T09:00:00.000Z	30 \| good	2.546 \| good	9.838 \| good	32.128 \| good	0.158 \| good	6.319 \| good	0.169 \| good
2025-12-05T10:00:00.000Z	30 \| good	2.67 \| good	8.047 \| good	32.205 \| good	0.141 \| good	7.297 \| good	0.169 \| good
2025-12-05T11:00:00.000Z	29 \| good	2.598 \| good	10.202 \| good	30.572 \| good	0.168 \| good	7.523 \| good	0.224 \| good
2025-12-05T12:00:00.000Z	28 \| good	2.685 \| good	11.509 \| good	30.39 \| good	0.159 \| good	6.842 \| good	0.293 \| good
2025-12-05T13:00:00.000Z	24 \| good	2.606 \| good	14.51 \| good	26.249 \| good	0.188 \| good	16.645 \| good	0.311 \| good
2025-12-05T14:00:00.000Z	24 \| good	2.869 \| good	13.984 \| good	26.27 \| good	0.212 \| good	17.523 \| good	0.345 \| good
2025-12-05T15:00:00.000Z	27 \| good	3.119 \| good	11.26 \| good	28.839 \| good	0.25 \| good	19.805 \| good	0.345 \| good
2025-12-05T16:00:00.000Z	26 \| good	3.613 \| good	15.704 \| good	27.863 \| good	0.254 \| good	19.745 \| good	0.327 \| good
2025-12-05T17:00:00.000Z	25 \| good	4.244 \| good	18.661 \| good	27.475 \| good	0.325 \| good	24.016 \| good	0.327 \| good
2025-12-05T18:00:00.000Z	26 \| good	3.727 \| good	16.479 \| good	24.099 \| good	0.498 \| good	27.871 \| good	0.35 \| good
2025-12-05T19:00:00.000Z	23 \| good	3.827 \| good	18.385 \| good	23.171 \| good	0.5 \| good	24.214 \| good	0.301 \| good
2025-12-05T20:00:00.000Z	27 \| good	3.769 \| good	13.393 \| good	21.205 \| good	0.438 \| good	28.764 \| good	0.353 \| good
2025-12-05T21:00:00.000Z	29 \| good	4.707 \| good	23.248 \| good	17.181 \| good	0.44 \| good	30.857 \| good	0.371 \| good
2025-12-05T22:00:00.000Z	33 \| good	5.718 \| good	25.249 \| good	15.195 \| good	0.367 \| good	27.132 \| good	0.405 \| good
2025-12-05T23:00:00.000Z	27 \| good	5.29 \| good	29.428 \| good	15.996 \| good	0.357 \| good	23.146 \| good	0.382 \| good
2025-12-06T00:00:00.000Z	33 \| good	5.548 \| good	27.341 \| good	15.257 \| good	0.343 \| good	20.569 \| good	0.353 \| good
2025-12-06T01:00:00.000Z	33 \| good	5.907 \| good	27.494 \| good	11.923 \| good	0.347 \| good	24.366 \| good	0.369 \| good
2025-12-06T02:00:00.000Z	38 \| good	6.664 \| good	24.584 \| good	17.724 \| good	0.35 \| good	20.896 \| good	0.398 \| good
2025-12-06T03:00:00.000Z	38 \| good	7.392 \| good	29.691 \| good	11.248 \| good	0.355 \| good	20.514 \| good	0.416 \| good
2025-12-06T04:00:00.000Z	44 \| good	7.663 \| good	39.852 \| good	11.235 \| good	0.335 \| good	20.748 \| good	0.416 \| good
2025-12-06T05:00:00.000Z	49 \| good	8.213 \| good	53.145 \| good	8.969 \| good	0.273 \| good	20.74 \| good	0.416 \| good
2025-12-06T06:00:00.000Z	58 \| moderate	12.743 \| fine	57.467 \| fine	8.394 \| good	0.271 \| good	18.57 \| good	0.398 \| good
2025-12-06T07:00:00.000Z	56 \| moderate	12.068 \| good	63.99 \| fine	8.912 \| good	0.269 \| good	15.285 \| good	0.398 \| good
2025-12-06T08:00:00.000Z	56 \| moderate	12.381 \| fine	52.276 \| good	7.822 \| good	0.264 \| good	16.416 \| good	0.416 \| good
2025-12-06T09:00:00.000Z	62 \| moderate	15.043 \| fine	62.97 \| fine	6.288 \| good	0.257 \| good	14.028 \| good	0.416 \| good
2025-12-06T10:00:00.000Z	66 \| moderate	17.37 \| fine	69.022 \| fine	8.504 \| good	0.221 \| good	13.5 \| good	0.42 \| good
2025-12-06T11:00:00.000Z	71 \| moderate	19.716 \| fine	89.493 \| fine	9.649 \| good	0.204 \| good	14.366 \| good	0.398 \| good
2025-12-06T12:00:00.000Z	71 \| moderate	20.009 \| fine	71.815 \| fine	5.834 \| good	0.237 \| good	19.284 \| good	0.405 \| good
2025-12-06T13:00:00.000Z	73 \| moderate	21.196 \| fine	66.481 \| fine	8.825 \| good	0.242 \| good	14.776 \| good	0.423 \| good
2025-12-06T14:00:00.000Z	75 \| moderate	22.06 \| fine	99.824 \| fine	10.274 \| good	0.302 \| good	13.434 \| good	0.477 \| good
2025-12-06T15:00:00.000Z	77 \| moderate	23.018 \| fine	80.606 \| fine	10.956 \| good	0.315 \| good	14.474 \| good	0.528 \| good
2025-12-06T16:00:00.000Z	77 \| moderate	22.568 \| fine	98.013 \| fine	12.447 \| good	0.294 \| good	8.642 \| good	0.538 \| good
2025-12-06T17:00:00.000Z	81 \| moderate	22.546 \| fine	115.187 \| fine	9.183 \| good	0.184 \| good	7.674 \| good	0.493 \| good
2025-12-06T18:00:00.000Z	79 \| moderate	23.662 \| fine	62.8 \| fine	12.186 \| good	0.161 \| good	8.41 \| good	0.507 \| good
2025-12-06T19:00:00.000Z	77 \| moderate	22.559 \| fine	87.375 \| fine	16 \| good	0.143 \| good	7.465 \| good	0.432 \| good
2025-12-06T20:00:00.000Z	79 \| moderate	23.53 \| fine	99.172 \| fine	18.675 \| good	0.227 \| good	7.592 \| good	0.385 \| good
2025-12-06T21:00:00.000Z	62 \| moderate	15.046 \| fine	43.752 \| good	19.727 \| good	0.193 \| good	6.751 \| good	0.356 \| good
2025-12-06T22:00:00.000Z	66 \| moderate	16.752 \| fine	63.462 \| fine	19.537 \| good	0.21 \| good	10.683 \| good	0.356 \| good
2025-12-06T23:00:00.000Z	73 \| moderate	21.489 \| fine	71.719 \| fine	18.905 \| good	0.306 \| good	10.935 \| good	0.334 \| good
2025-12-07T00:00:00.000Z	75 \| moderate	22.17 \| fine	87.216 \| fine	14.86 \| good	0.372 \| good	14.6 \| good	0.364 \| good
2025-12-07T01:00:00.000Z	81 \| moderate	24.97 \| fine	99.714 \| fine	20.909 \| good	0.672 \| good	12.508 \| good	0.395 \| good
2025-12-07T02:00:00.000Z	84 \| moderate	26.931 \| fine	95.467 \| fine	12.563 \| good	0.875 \| good	12.73 \| good	0.46 \| good
2025-12-07T03:00:00.000Z	79 \| moderate	23.768 \| fine	103.944 \| fine	6.039 \| good	0.954 \| good	15.446 \| good	0.643 \| good
2025-12-07T04:00:00.000Z	82 \| moderate	26.484 \| fine	87.017 \| fine	3.921 \| good	0.992 \| good	13.765 \| good	0.666 \| good
2025-12-07T05:00:00.000Z	92 \| moderate	30.546 \| fine	119.879 \| fine	6.94 \| good	1.121 \| good	18.597 \| good	0.694 \| good
2025-12-07T06:00:00.000Z	77 \| moderate	23.1 \| fine	69.305 \| fine	9.612 \| good	1.248 \| good	17.124 \| good	0.666 \| good
2025-12-07T07:00:00.000Z	84 \| moderate	26.915 \| fine	54.326 \| good	5.945 \| good	1.131 \| good	17.109 \| good	0.677 \| good
2025-12-07T08:00:00.000Z	84 \| moderate	26.915 \| fine	54.326 \| good	5.945 \| good	1.131 \| good	17.109 \| good	0.677 \| good
2025-12-04T13:00:00.000Z	54 \| moderate	10.894 \| good	48.127 \| good	22.447 \| good	3.673 \| good	7.35 \| good	0.2 \| good
2025-12-04T14:00:00.000Z	56 \| moderate	12.073 \| good	54.292 \| good	25.418 \| good	4.254 \| good	6.536 \| good	0.198 \| good
2025-12-04T15:00:00.000Z	58 \| moderate	13.426 \| fine	60.69 \| fine	25.69 \| good	4.835 \| good	5.722 \| good	0.195 \| good
2025-12-04T16:00:00.000Z	62 \| moderate	15.126 \| fine	67.757 \| fine	23.538 \| good	3.979 \| good	4.799 \| good	0.192 \| good
2025-12-04T17:00:00.000Z	64 \| moderate	15.851 \| fine	70.835 \| fine	23.953 \| good	3.123 \| good	3.876 \| good	0.189 \| good
2025-12-04T18:00:00.000Z	62 \| moderate	14.838 \| fine	65.947 \| fine	25.725 \| good	2.266 \| good	2.953 \| good	0.186 \| good
2025-12-04T19:00:00.000Z	60 \| moderate	14.057 \| fine	63.007 \| fine	26.582 \| good	1.804 \| good	2.869 \| good	0.174 \| good
2025-12-04T20:00:00.000Z	60 \| moderate	13.74 \| fine	61.922 \| fine	26.342 \| good	1.343 \| good	2.784 \| good	0.162 \| good
2025-12-04T21:00:00.000Z	38 \| good	6.891 \| good	30.327 \| good	29.784 \| good	0.881 \| good	2.699 \| good	0.15 \| good
2025-12-04T22:00:00.000Z	29 \| good	2.597 \| good	10.827 \| good	30.606 \| good	0.956 \| good	3.428 \| good	0.154 \| good
2025-12-04T23:00:00.000Z	31 \| good	0.761 \| good	2.641 \| good	33.616 \| good	1.03 \| good	4.156 \| good	0.158 \| good
2025-12-05T00:00:00.000Z	31 \| good	1.205 \| good	4.996 \| good	34.18 \| good	1.105 \| good	4.885 \| good	0.162 \| good
2025-12-05T01:00:00.000Z	30 \| good	1.512 \| good	5.807 \| good	32.207 \| good	1.142 \| good	4.953 \| good	0.164 \| good
2025-12-05T02:00:00.000Z	26 \| good	2.571 \| good	10.29 \| good	27.847 \| good	1.178 \| good	5.022 \| good	0.166 \| good
2025-12-05T03:00:00.000Z	23 \| good	2.641 \| good	10.634 \| good	25.436 \| good	1.214 \| good	5.09 \| good	0.168 \| good
2025-12-05T04:00:00.000Z	22 \| good	2.053 \| good	8.388 \| good	24.178 \| good	1.276 \| good	5.767 \| good	0.176 \| good
2025-12-05T05:00:00.000Z	22 \| good	2.088 \| good	8.52 \| good	24.313 \| good	1.337 \| good	6.444 \| good	0.183 \| good
2025-12-05T06:00:00.000Z	21 \| good	2.379 \| good	9.856 \| good	22.579 \| good	1.399 \| good	7.12 \| good	0.19 \| good
2025-12-05T07:00:00.000Z	19 \| good	2.263 \| good	9.34 \| good	20.768 \| good	1.527 \| good	7.364 \| good	0.193 \| good
2025-12-05T08:00:00.000Z	19 \| good	2.631 \| good	10.883 \| good	19.566 \| good	1.655 \| good	7.608 \| good	0.195 \| good
2025-12-05T09:00:00.000Z	17 \| good	3.015 \| good	12.052 \| good	17.865 \| good	1.782 \| good	7.852 \| good	0.197 \| good
2025-12-05T10:00:00.000Z	16 \| good	2.938 \| good	12.052 \| good	17.129 \| good	1.871 \| good	8.758 \| good	0.201 \| good
2025-12-05T11:00:00.000Z	22 \| good	3.866 \| good	16.824 \| good	16.209 \| good	1.96 \| good	9.664 \| good	0.206 \| good
2025-12-05T12:00:00.000Z	27 \| good	4.805 \| good	20.724 \| good	13.853 \| good	2.048 \| good	10.57 \| good	0.21 \| good
2025-12-05T13:00:00.000Z	33 \| good	6.104 \| good	27.092 \| good	15.746 \| good	2.15 \| good	10.249 \| good	0.2 \| good
2025-12-05T14:00:00.000Z	44 \| good	7.737 \| good	34 \| good	17.377 \| good	2.252 \| good	9.929 \| good	0.19 \| good
2025-12-05T15:00:00.000Z	38 \| good	7.128 \| good	31.808 \| good	19.914 \| good	2.354 \| good	9.608 \| good	0.179 \| good
2025-12-05T16:00:00.000Z	33 \| good	5.908 \| good	26.337 \| good	23.135 \| good	2.427 \| good	9.96 \| good	0.179 \| good
2025-12-05T17:00:00.000Z	27 \| good	5.248 \| good	22.649 \| good	25.968 \| good	2.501 \| good	10.312 \| good	0.179 \| good
2025-12-05T18:00:00.000Z	27 \| good	5.299 \| good	22.804 \| good	26.767 \| good	2.574 \| good	10.663 \| good	0.179 \| good
2025-12-05T19:00:00.000Z	27 \| good	5.245 \| good	22.66 \| good	26.796 \| good	2.699 \| good	12.515 \| good	0.189 \| good
2025-12-05T20:00:00.000Z	27 \| good	5.487 \| good	23.748 \| good	26.417 \| good	2.825 \| good	14.367 \| good	0.199 \| good
2025-12-05T21:00:00.000Z	27 \| good	5.208 \| good	22.578 \| good	26.285 \| good	2.95 \| good	16.219 \| good	0.209 \| good
2025-12-05T22:00:00.000Z	33 \| good	6.352 \| good	28.126 \| good	23.921 \| good	2.973 \| good	18.4 \| good	0.225 \| good
2025-12-05T23:00:00.000Z	38 \| good	7.351 \| good	32.565 \| good	22.355 \| good	2.997 \| good	20.58 \| good	0.24 \| good
2025-12-06T00:00:00.000Z	49 \| good	8.937 \| good	39.957 \| good	19.709 \| good	3.02 \| good	22.76 \| good	0.256 \| good
2025-12-06T01:00:00.000Z	49 \| good	9.249 \| good	41.097 \| good	17.283 \| good	2.941 \| good	23.126 \| good	0.26 \| good
2025-12-06T02:00:00.000Z	52 \| moderate	9.756 \| good	43.232 \| good	17.9 \| good	2.862 \| good	23.493 \| good	0.264 \| good
2025-12-06T03:00:00.000Z	52 \| moderate	10.403 \| good	46.043 \| good	16.253 \| good	2.783 \| good	23.86 \| good	0.268 \| good
2025-12-06T04:00:00.000Z	52 \| moderate	10.235 \| good	45.416 \| good	16.095 \| good	2.508 \| good	23.542 \| good	0.269 \| good
2025-12-06T05:00:00.000Z	54 \| moderate	10.801 \| good	48.012 \| good	15.325 \| good	2.234 \| good	23.225 \| good	0.27 \| good
2025-12-06T06:00:00.000Z	73 \| moderate	21.293 \| fine	22.673 \| good	8.276 \| good	1.964 \| good	23.033 \| good	0.271 \| good
2025-12-06T07:00:00.000Z	62 \| moderate	14.891 \| fine	66.272 \| fine	12.47 \| good	1.873 \| good	21.081 \| good	0.262 \| good
2025-12-06T08:00:00.000Z	66 \| moderate	16.527 \| fine	73.068 \| fine	10.744 \| good	1.788 \| good	19.254 \| good	0.254 \| good
2025-12-06T09:00:00.000Z	66 \| moderate	17.358 \| fine	76.98 \| fine	10.311 \| good	1.703 \| good	17.426 \| good	0.246 \| good
2025-12-06T10:00:00.000Z	71 \| moderate	19.602 \| fine	86.835 \| fine	10.409 \| good	1.741 \| good	18.316 \| good	0.257 \| good
2025-12-06T11:00:00.000Z	71 \| moderate	19.934 \| fine	87.65 \| fine	8.807 \| good	1.778 \| good	19.205 \| good	0.269 \| good
2025-12-06T12:00:00.000Z	82 \| moderate	26.331 \| fine	27.587 \| good	8.167 \| good	1.801 \| good	20.057 \| good	0.279 \| good

West Chester

Empower business decisions with accurate air quality data

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

0.70ppm

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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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 05:00:00, 2025-12-07.

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 08:00:00 on 2025-12-06.

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 84.

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 26.915 μg/m³.

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

West Chester, Pennsylvania currently has a PM₁₀ concentration of 54.326 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 0.677 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 1.131 ppb.

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

West Chester, Pennsylvania currently has an ozone (O₃) concentration of 5.945 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 17.109 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-05T09:00:00.000Z	30 \| good	2.546 \| good	9.838 \| good	32.128 \| good	0.158 \| good	6.319 \| good	0.169 \| good
2025-12-05T10:00:00.000Z	30 \| good	2.67 \| good	8.047 \| good	32.205 \| good	0.141 \| good	7.297 \| good	0.169 \| good
2025-12-05T11:00:00.000Z	29 \| good	2.598 \| good	10.202 \| good	30.572 \| good	0.168 \| good	7.523 \| good	0.224 \| good
2025-12-05T12:00:00.000Z	28 \| good	2.685 \| good	11.509 \| good	30.39 \| good	0.159 \| good	6.842 \| good	0.293 \| good
2025-12-05T13:00:00.000Z	24 \| good	2.606 \| good	14.51 \| good	26.249 \| good	0.188 \| good	16.645 \| good	0.311 \| good
2025-12-05T14:00:00.000Z	24 \| good	2.869 \| good	13.984 \| good	26.27 \| good	0.212 \| good	17.523 \| good	0.345 \| good
2025-12-05T15:00:00.000Z	27 \| good	3.119 \| good	11.26 \| good	28.839 \| good	0.25 \| good	19.805 \| good	0.345 \| good
2025-12-05T16:00:00.000Z	26 \| good	3.613 \| good	15.704 \| good	27.863 \| good	0.254 \| good	19.745 \| good	0.327 \| good
2025-12-05T17:00:00.000Z	25 \| good	4.244 \| good	18.661 \| good	27.475 \| good	0.325 \| good	24.016 \| good	0.327 \| good
2025-12-05T18:00:00.000Z	26 \| good	3.727 \| good	16.479 \| good	24.099 \| good	0.498 \| good	27.871 \| good	0.35 \| good
2025-12-05T19:00:00.000Z	23 \| good	3.827 \| good	18.385 \| good	23.171 \| good	0.5 \| good	24.214 \| good	0.301 \| good
2025-12-05T20:00:00.000Z	27 \| good	3.769 \| good	13.393 \| good	21.205 \| good	0.438 \| good	28.764 \| good	0.353 \| good
2025-12-05T21:00:00.000Z	29 \| good	4.707 \| good	23.248 \| good	17.181 \| good	0.44 \| good	30.857 \| good	0.371 \| good
2025-12-05T22:00:00.000Z	33 \| good	5.718 \| good	25.249 \| good	15.195 \| good	0.367 \| good	27.132 \| good	0.405 \| good
2025-12-05T23:00:00.000Z	27 \| good	5.29 \| good	29.428 \| good	15.996 \| good	0.357 \| good	23.146 \| good	0.382 \| good
2025-12-06T00:00:00.000Z	33 \| good	5.548 \| good	27.341 \| good	15.257 \| good	0.343 \| good	20.569 \| good	0.353 \| good
2025-12-06T01:00:00.000Z	33 \| good	5.907 \| good	27.494 \| good	11.923 \| good	0.347 \| good	24.366 \| good	0.369 \| good
2025-12-06T02:00:00.000Z	38 \| good	6.664 \| good	24.584 \| good	17.724 \| good	0.35 \| good	20.896 \| good	0.398 \| good
2025-12-06T03:00:00.000Z	38 \| good	7.392 \| good	29.691 \| good	11.248 \| good	0.355 \| good	20.514 \| good	0.416 \| good
2025-12-06T04:00:00.000Z	44 \| good	7.663 \| good	39.852 \| good	11.235 \| good	0.335 \| good	20.748 \| good	0.416 \| good
2025-12-06T05:00:00.000Z	49 \| good	8.213 \| good	53.145 \| good	8.969 \| good	0.273 \| good	20.74 \| good	0.416 \| good
2025-12-06T06:00:00.000Z	58 \| moderate	12.743 \| fine	57.467 \| fine	8.394 \| good	0.271 \| good	18.57 \| good	0.398 \| good
2025-12-06T07:00:00.000Z	56 \| moderate	12.068 \| good	63.99 \| fine	8.912 \| good	0.269 \| good	15.285 \| good	0.398 \| good
2025-12-06T08:00:00.000Z	56 \| moderate	12.381 \| fine	52.276 \| good	7.822 \| good	0.264 \| good	16.416 \| good	0.416 \| good
2025-12-06T09:00:00.000Z	62 \| moderate	15.043 \| fine	62.97 \| fine	6.288 \| good	0.257 \| good	14.028 \| good	0.416 \| good
2025-12-06T10:00:00.000Z	66 \| moderate	17.37 \| fine	69.022 \| fine	8.504 \| good	0.221 \| good	13.5 \| good	0.42 \| good
2025-12-06T11:00:00.000Z	71 \| moderate	19.716 \| fine	89.493 \| fine	9.649 \| good	0.204 \| good	14.366 \| good	0.398 \| good
2025-12-06T12:00:00.000Z	71 \| moderate	20.009 \| fine	71.815 \| fine	5.834 \| good	0.237 \| good	19.284 \| good	0.405 \| good
2025-12-06T13:00:00.000Z	73 \| moderate	21.196 \| fine	66.481 \| fine	8.825 \| good	0.242 \| good	14.776 \| good	0.423 \| good
2025-12-06T14:00:00.000Z	75 \| moderate	22.06 \| fine	99.824 \| fine	10.274 \| good	0.302 \| good	13.434 \| good	0.477 \| good
2025-12-06T15:00:00.000Z	77 \| moderate	23.018 \| fine	80.606 \| fine	10.956 \| good	0.315 \| good	14.474 \| good	0.528 \| good
2025-12-06T16:00:00.000Z	77 \| moderate	22.568 \| fine	98.013 \| fine	12.447 \| good	0.294 \| good	8.642 \| good	0.538 \| good
2025-12-06T17:00:00.000Z	81 \| moderate	22.546 \| fine	115.187 \| fine	9.183 \| good	0.184 \| good	7.674 \| good	0.493 \| good
2025-12-06T18:00:00.000Z	79 \| moderate	23.662 \| fine	62.8 \| fine	12.186 \| good	0.161 \| good	8.41 \| good	0.507 \| good
2025-12-06T19:00:00.000Z	77 \| moderate	22.559 \| fine	87.375 \| fine	16 \| good	0.143 \| good	7.465 \| good	0.432 \| good
2025-12-06T20:00:00.000Z	79 \| moderate	23.53 \| fine	99.172 \| fine	18.675 \| good	0.227 \| good	7.592 \| good	0.385 \| good
2025-12-06T21:00:00.000Z	62 \| moderate	15.046 \| fine	43.752 \| good	19.727 \| good	0.193 \| good	6.751 \| good	0.356 \| good
2025-12-06T22:00:00.000Z	66 \| moderate	16.752 \| fine	63.462 \| fine	19.537 \| good	0.21 \| good	10.683 \| good	0.356 \| good
2025-12-06T23:00:00.000Z	73 \| moderate	21.489 \| fine	71.719 \| fine	18.905 \| good	0.306 \| good	10.935 \| good	0.334 \| good
2025-12-07T00:00:00.000Z	75 \| moderate	22.17 \| fine	87.216 \| fine	14.86 \| good	0.372 \| good	14.6 \| good	0.364 \| good
2025-12-07T01:00:00.000Z	81 \| moderate	24.97 \| fine	99.714 \| fine	20.909 \| good	0.672 \| good	12.508 \| good	0.395 \| good
2025-12-07T02:00:00.000Z	84 \| moderate	26.931 \| fine	95.467 \| fine	12.563 \| good	0.875 \| good	12.73 \| good	0.46 \| good
2025-12-07T03:00:00.000Z	79 \| moderate	23.768 \| fine	103.944 \| fine	6.039 \| good	0.954 \| good	15.446 \| good	0.643 \| good
2025-12-07T04:00:00.000Z	82 \| moderate	26.484 \| fine	87.017 \| fine	3.921 \| good	0.992 \| good	13.765 \| good	0.666 \| good
2025-12-07T05:00:00.000Z	92 \| moderate	30.546 \| fine	119.879 \| fine	6.94 \| good	1.121 \| good	18.597 \| good	0.694 \| good
2025-12-07T06:00:00.000Z	77 \| moderate	23.1 \| fine	69.305 \| fine	9.612 \| good	1.248 \| good	17.124 \| good	0.666 \| good
2025-12-07T07:00:00.000Z	84 \| moderate	26.915 \| fine	54.326 \| good	5.945 \| good	1.131 \| good	17.109 \| good	0.677 \| good
2025-12-07T08:00:00.000Z	84 \| moderate	26.915 \| fine	54.326 \| good	5.945 \| good	1.131 \| good	17.109 \| good	0.677 \| good
2025-12-04T13:00:00.000Z	54 \| moderate	10.894 \| good	48.127 \| good	22.447 \| good	3.673 \| good	7.35 \| good	0.2 \| good
2025-12-04T14:00:00.000Z	56 \| moderate	12.073 \| good	54.292 \| good	25.418 \| good	4.254 \| good	6.536 \| good	0.198 \| good
2025-12-04T15:00:00.000Z	58 \| moderate	13.426 \| fine	60.69 \| fine	25.69 \| good	4.835 \| good	5.722 \| good	0.195 \| good
2025-12-04T16:00:00.000Z	62 \| moderate	15.126 \| fine	67.757 \| fine	23.538 \| good	3.979 \| good	4.799 \| good	0.192 \| good
2025-12-04T17:00:00.000Z	64 \| moderate	15.851 \| fine	70.835 \| fine	23.953 \| good	3.123 \| good	3.876 \| good	0.189 \| good
2025-12-04T18:00:00.000Z	62 \| moderate	14.838 \| fine	65.947 \| fine	25.725 \| good	2.266 \| good	2.953 \| good	0.186 \| good
2025-12-04T19:00:00.000Z	60 \| moderate	14.057 \| fine	63.007 \| fine	26.582 \| good	1.804 \| good	2.869 \| good	0.174 \| good
2025-12-04T20:00:00.000Z	60 \| moderate	13.74 \| fine	61.922 \| fine	26.342 \| good	1.343 \| good	2.784 \| good	0.162 \| good
2025-12-04T21:00:00.000Z	38 \| good	6.891 \| good	30.327 \| good	29.784 \| good	0.881 \| good	2.699 \| good	0.15 \| good
2025-12-04T22:00:00.000Z	29 \| good	2.597 \| good	10.827 \| good	30.606 \| good	0.956 \| good	3.428 \| good	0.154 \| good
2025-12-04T23:00:00.000Z	31 \| good	0.761 \| good	2.641 \| good	33.616 \| good	1.03 \| good	4.156 \| good	0.158 \| good
2025-12-05T00:00:00.000Z	31 \| good	1.205 \| good	4.996 \| good	34.18 \| good	1.105 \| good	4.885 \| good	0.162 \| good
2025-12-05T01:00:00.000Z	30 \| good	1.512 \| good	5.807 \| good	32.207 \| good	1.142 \| good	4.953 \| good	0.164 \| good
2025-12-05T02:00:00.000Z	26 \| good	2.571 \| good	10.29 \| good	27.847 \| good	1.178 \| good	5.022 \| good	0.166 \| good
2025-12-05T03:00:00.000Z	23 \| good	2.641 \| good	10.634 \| good	25.436 \| good	1.214 \| good	5.09 \| good	0.168 \| good
2025-12-05T04:00:00.000Z	22 \| good	2.053 \| good	8.388 \| good	24.178 \| good	1.276 \| good	5.767 \| good	0.176 \| good
2025-12-05T05:00:00.000Z	22 \| good	2.088 \| good	8.52 \| good	24.313 \| good	1.337 \| good	6.444 \| good	0.183 \| good
2025-12-05T06:00:00.000Z	21 \| good	2.379 \| good	9.856 \| good	22.579 \| good	1.399 \| good	7.12 \| good	0.19 \| good
2025-12-05T07:00:00.000Z	19 \| good	2.263 \| good	9.34 \| good	20.768 \| good	1.527 \| good	7.364 \| good	0.193 \| good
2025-12-05T08:00:00.000Z	19 \| good	2.631 \| good	10.883 \| good	19.566 \| good	1.655 \| good	7.608 \| good	0.195 \| good
2025-12-05T09:00:00.000Z	17 \| good	3.015 \| good	12.052 \| good	17.865 \| good	1.782 \| good	7.852 \| good	0.197 \| good
2025-12-05T10:00:00.000Z	16 \| good	2.938 \| good	12.052 \| good	17.129 \| good	1.871 \| good	8.758 \| good	0.201 \| good
2025-12-05T11:00:00.000Z	22 \| good	3.866 \| good	16.824 \| good	16.209 \| good	1.96 \| good	9.664 \| good	0.206 \| good
2025-12-05T12:00:00.000Z	27 \| good	4.805 \| good	20.724 \| good	13.853 \| good	2.048 \| good	10.57 \| good	0.21 \| good
2025-12-05T13:00:00.000Z	33 \| good	6.104 \| good	27.092 \| good	15.746 \| good	2.15 \| good	10.249 \| good	0.2 \| good
2025-12-05T14:00:00.000Z	44 \| good	7.737 \| good	34 \| good	17.377 \| good	2.252 \| good	9.929 \| good	0.19 \| good
2025-12-05T15:00:00.000Z	38 \| good	7.128 \| good	31.808 \| good	19.914 \| good	2.354 \| good	9.608 \| good	0.179 \| good
2025-12-05T16:00:00.000Z	33 \| good	5.908 \| good	26.337 \| good	23.135 \| good	2.427 \| good	9.96 \| good	0.179 \| good
2025-12-05T17:00:00.000Z	27 \| good	5.248 \| good	22.649 \| good	25.968 \| good	2.501 \| good	10.312 \| good	0.179 \| good
2025-12-05T18:00:00.000Z	27 \| good	5.299 \| good	22.804 \| good	26.767 \| good	2.574 \| good	10.663 \| good	0.179 \| good
2025-12-05T19:00:00.000Z	27 \| good	5.245 \| good	22.66 \| good	26.796 \| good	2.699 \| good	12.515 \| good	0.189 \| good
2025-12-05T20:00:00.000Z	27 \| good	5.487 \| good	23.748 \| good	26.417 \| good	2.825 \| good	14.367 \| good	0.199 \| good
2025-12-05T21:00:00.000Z	27 \| good	5.208 \| good	22.578 \| good	26.285 \| good	2.95 \| good	16.219 \| good	0.209 \| good
2025-12-05T22:00:00.000Z	33 \| good	6.352 \| good	28.126 \| good	23.921 \| good	2.973 \| good	18.4 \| good	0.225 \| good
2025-12-05T23:00:00.000Z	38 \| good	7.351 \| good	32.565 \| good	22.355 \| good	2.997 \| good	20.58 \| good	0.24 \| good
2025-12-06T00:00:00.000Z	49 \| good	8.937 \| good	39.957 \| good	19.709 \| good	3.02 \| good	22.76 \| good	0.256 \| good
2025-12-06T01:00:00.000Z	49 \| good	9.249 \| good	41.097 \| good	17.283 \| good	2.941 \| good	23.126 \| good	0.26 \| good
2025-12-06T02:00:00.000Z	52 \| moderate	9.756 \| good	43.232 \| good	17.9 \| good	2.862 \| good	23.493 \| good	0.264 \| good
2025-12-06T03:00:00.000Z	52 \| moderate	10.403 \| good	46.043 \| good	16.253 \| good	2.783 \| good	23.86 \| good	0.268 \| good
2025-12-06T04:00:00.000Z	52 \| moderate	10.235 \| good	45.416 \| good	16.095 \| good	2.508 \| good	23.542 \| good	0.269 \| good
2025-12-06T05:00:00.000Z	54 \| moderate	10.801 \| good	48.012 \| good	15.325 \| good	2.234 \| good	23.225 \| good	0.27 \| good
2025-12-06T06:00:00.000Z	73 \| moderate	21.293 \| fine	22.673 \| good	8.276 \| good	1.964 \| good	23.033 \| good	0.271 \| good
2025-12-06T07:00:00.000Z	62 \| moderate	14.891 \| fine	66.272 \| fine	12.47 \| good	1.873 \| good	21.081 \| good	0.262 \| good
2025-12-06T08:00:00.000Z	66 \| moderate	16.527 \| fine	73.068 \| fine	10.744 \| good	1.788 \| good	19.254 \| good	0.254 \| good
2025-12-06T09:00:00.000Z	66 \| moderate	17.358 \| fine	76.98 \| fine	10.311 \| good	1.703 \| good	17.426 \| good	0.246 \| good
2025-12-06T10:00:00.000Z	71 \| moderate	19.602 \| fine	86.835 \| fine	10.409 \| good	1.741 \| good	18.316 \| good	0.257 \| good
2025-12-06T11:00:00.000Z	71 \| moderate	19.934 \| fine	87.65 \| fine	8.807 \| good	1.778 \| good	19.205 \| good	0.269 \| good
2025-12-06T12:00:00.000Z	82 \| moderate	26.331 \| fine	27.587 \| good	8.167 \| good	1.801 \| good	20.057 \| good	0.279 \| 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?