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

West Chester, Pennsylvania currently has a PM10 concentration of 23.195 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 0.347 ppb.

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

West Chester, Pennsylvania currently has an ozone (O3) concentration of 36.212 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 10.995 ppb.

Current air quality index in West Chester, Pennsylvania today

Name: Live air pollution levels in West Chester, Pennsylvania today
Creator: Ambee

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)

4.93 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

23.20 μg/m³

155

255

425

605+

Ozone (O₃)

36.21 ppb

201

201+

Sulfur Dioxide (SO₂)

0.35 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

10.99 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.32 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
2025-10-20T03:00:00.000Z	37 \| good	5.801 \| good	23.579 \| good	40.054 \| good	0.276 \| good	5.398 \| good	0.254 \| good
2025-10-20T04:00:00.000Z	37 \| good	4.8 \| good	24.018 \| good	39.775 \| good	0.216 \| good	4.683 \| good	0.254 \| good
2025-10-20T05:00:00.000Z	36 \| good	4.328 \| good	19.006 \| good	38.833 \| good	0.211 \| good	4.704 \| good	0.277 \| good
2025-10-20T06:00:00.000Z	37 \| good	3.41 \| good	19.324 \| good	39.906 \| good	0.275 \| good	3.72 \| good	0.244 \| good
2025-10-20T07:00:00.000Z	38 \| good	3.222 \| good	16.36 \| good	40.792 \| good	0.237 \| good	2.865 \| good	0.221 \| good
2025-10-20T08:00:00.000Z	34 \| good	2.723 \| good	12.063 \| good	37.162 \| good	0.247 \| good	3.214 \| good	0.236 \| good
2025-10-20T09:00:00.000Z	30 \| good	2.456 \| good	9.223 \| good	31.622 \| good	0.243 \| good	4.534 \| good	0.236 \| good
2025-10-20T10:00:00.000Z	31 \| good	2.641 \| good	13.02 \| good	33.962 \| good	0.27 \| good	4.766 \| good	0.275 \| good
2025-10-20T11:00:00.000Z	27 \| good	2.639 \| good	10.876 \| good	29.075 \| good	0.265 \| good	3.986 \| good	0.275 \| good
2025-10-20T12:00:00.000Z	26 \| good	1.681 \| good	6.78 \| good	28.429 \| good	0.247 \| good	3.752 \| good	0.279 \| good
2025-10-20T13:00:00.000Z	26 \| good	1.943 \| good	7.467 \| good	28.152 \| good	0.309 \| good	5.466 \| good	0.256 \| good
2025-10-20T14:00:00.000Z	24 \| good	1.298 \| good	5.12 \| good	25.544 \| good	0.313 \| good	4.731 \| good	0.245 \| good
2025-10-20T15:00:00.000Z	24 \| good	1.509 \| good	5.795 \| good	25.512 \| good	0.223 \| good	5.559 \| good	0.245 \| good
2025-10-20T16:00:00.000Z	26 \| good	2.013 \| good	9.452 \| good	28.145 \| good	0.202 \| good	3.691 \| good	0.276 \| good
2025-10-20T17:00:00.000Z	28 \| good	2.438 \| good	30.127 \| good	29.259 \| good	0.282 \| good	3.134 \| good	0.251 \| good
2025-10-20T18:00:00.000Z	28 \| good	2.614 \| good	10.696 \| good	29.898 \| good	0.189 \| good	3.469 \| good	0.199 \| good
2025-10-20T19:00:00.000Z	28 \| good	3.786 \| good	15.581 \| good	30.052 \| good	0.207 \| good	3.202 \| good	0.199 \| good
2025-10-20T20:00:00.000Z	28 \| good	3.885 \| good	19.505 \| good	29.744 \| good	0.243 \| good	3.089 \| good	0.192 \| good
2025-10-20T21:00:00.000Z	29 \| good	3.328 \| good	14.017 \| good	30.53 \| good	0.196 \| good	3.353 \| good	0.199 \| good
2025-10-20T22:00:00.000Z	28 \| good	3.198 \| good	15.612 \| good	29.663 \| good	0.214 \| good	2.82 \| good	0.192 \| good
2025-10-20T23:00:00.000Z	27 \| good	2.86 \| good	10.767 \| good	29.169 \| good	0.178 \| good	3.586 \| good	0.213 \| good
2025-10-21T00:00:00.000Z	25 \| good	3.006 \| good	12.901 \| good	27.451 \| good	0.164 \| good	4.388 \| good	0.246 \| good
2025-10-21T01:00:00.000Z	26 \| good	3.57 \| good	15.37 \| good	27.641 \| good	0.18 \| good	5.862 \| good	0.246 \| good
2025-10-21T02:00:00.000Z	25 \| good	4.005 \| good	15.055 \| good	26.594 \| good	0.178 \| good	6.549 \| good	0.263 \| good
2025-10-21T03:00:00.000Z	27 \| good	5.118 \| good	21.954 \| good	22.663 \| good	1.41 \| good	6.375 \| good	0.147 \| good
2025-10-21T04:00:00.000Z	22 \| good	3.962 \| good	17.599 \| good	22.709 \| good	0.184 \| good	7.623 \| good	0.289 \| good
2025-10-21T05:00:00.000Z	22 \| good	4.269 \| good	16.883 \| good	21.617 \| good	0.199 \| good	8.418 \| good	0.289 \| good
2025-10-21T06:00:00.000Z	27 \| good	4.542 \| good	19.389 \| good	19.473 \| good	0.192 \| good	8.261 \| good	0.221 \| good
2025-10-21T07:00:00.000Z	27 \| good	4.653 \| good	20.565 \| good	17.82 \| good	0.177 \| good	8.797 \| good	0.27 \| good
2025-10-21T08:00:00.000Z	27 \| good	4.591 \| good	25.683 \| good	17.588 \| good	0.201 \| good	8.21 \| good	0.245 \| good
2025-10-21T09:00:00.000Z	33 \| good	5.625 \| good	24.852 \| good	8.01 \| good	0.201 \| good	7.67 \| good	0.234 \| good
2025-10-21T10:00:00.000Z	33 \| good	5.766 \| good	35.249 \| good	10.903 \| good	0.264 \| good	9.935 \| good	0.288 \| good
2025-10-21T11:00:00.000Z	33 \| good	5.539 \| good	25.925 \| good	8.14 \| good	0.255 \| good	15.69 \| good	0.299 \| good
2025-10-21T12:00:00.000Z	27 \| good	5.206 \| good	20.984 \| good	8.793 \| good	0.254 \| good	17.383 \| good	0.397 \| good
2025-10-21T13:00:00.000Z	27 \| good	5.469 \| good	19.583 \| good	5.045 \| good	0.354 \| good	18.745 \| good	0.462 \| good
2025-10-21T14:00:00.000Z	33 \| good	6.448 \| good	22.879 \| good	7.882 \| good	0.661 \| good	21.388 \| good	0.459 \| good
2025-10-21T15:00:00.000Z	38 \| good	7.286 \| good	29.99 \| good	10.935 \| good	1.009 \| good	12.002 \| good	0.342 \| good
2025-10-21T16:00:00.000Z	27 \| good	5.292 \| good	23.248 \| good	17.809 \| good	0.688 \| good	8.736 \| good	0.299 \| good
2025-10-21T17:00:00.000Z	24 \| good	3.884 \| good	18.022 \| good	25.677 \| good	0.373 \| good	9.206 \| good	0.267 \| good
2025-10-21T18:00:00.000Z	28 \| good	3.579 \| good	19.339 \| good	29.939 \| good	0.27 \| good	7.763 \| good	0.267 \| good
2025-10-21T19:00:00.000Z	32 \| good	3.369 \| good	20.88 \| good	34.568 \| good	0.289 \| good	6.448 \| good	0.233 \| good
2025-10-21T20:00:00.000Z	35 \| good	4.036 \| good	15.078 \| good	37.613 \| good	0.286 \| good	5.802 \| good	0.233 \| good
2025-10-21T21:00:00.000Z	35 \| good	3.625 \| good	16.893 \| good	37.88 \| good	0.28 \| good	6.666 \| good	0.275 \| good
2025-10-21T22:00:00.000Z	35 \| good	4.083 \| good	18.5 \| good	37.697 \| good	0.298 \| good	7.705 \| good	0.275 \| good
2025-10-21T23:00:00.000Z	36 \| good	4.991 \| good	20.201 \| good	38.896 \| good	0.315 \| good	8.245 \| good	0.301 \| good
2025-10-22T00:00:00.000Z	31 \| good	5.193 \| good	24.165 \| good	33.026 \| good	0.319 \| good	12.043 \| good	0.325 \| good
2025-10-22T01:00:00.000Z	33 \| good	4.465 \| good	22.097 \| good	36.208 \| good	0.347 \| good	11.072 \| good	0.325 \| good
2025-10-22T02:00:00.000Z	33 \| good	4.929 \| good	23.195 \| good	36.212 \| good	0.347 \| good	10.995 \| good	0.321 \| good
2025-10-19T14:00:00.000Z	44 \| good	8.21 \| good	36 \| good	33.483 \| good	1.838 \| good	5.304 \| good	0.178 \| good
2025-10-19T15:00:00.000Z	44 \| good	8.34 \| good	36.517 \| good	40.346 \| good	1.957 \| good	4.135 \| good	0.178 \| good
2025-10-19T16:00:00.000Z	44 \| good	8.461 \| good	37.05 \| good	45.712 \| good	1.928 \| good	3.328 \| good	0.172 \| good
2025-10-19T17:00:00.000Z	44 \| good	8.109 \| good	35.31 \| good	48.46 \| good	1.898 \| good	2.52 \| good	0.165 \| good
2025-10-19T18:00:00.000Z	48 \| good	7.845 \| good	34.257 \| good	52.266 \| good	1.868 \| good	1.712 \| good	0.159 \| good
2025-10-19T19:00:00.000Z	50 \| good	7.576 \| good	33.257 \| good	53.932 \| good	1.819 \| good	1.934 \| good	0.155 \| good
2025-10-19T20:00:00.000Z	49 \| good	7.127 \| good	31.878 \| good	52.778 \| good	1.769 \| good	2.156 \| good	0.151 \| good
2025-10-19T21:00:00.000Z	46 \| good	6.756 \| good	30 \| good	50.164 \| good	1.719 \| good	2.378 \| good	0.146 \| good
2025-10-19T22:00:00.000Z	42 \| good	6.365 \| good	28.236 \| good	45.296 \| good	1.701 \| good	2.781 \| good	0.148 \| good
2025-10-19T23:00:00.000Z	38 \| good	6.803 \| good	30.043 \| good	39.6 \| good	1.682 \| good	3.184 \| good	0.149 \| good
2025-10-20T00:00:00.000Z	37 \| good	6.173 \| good	27.344 \| good	40.265 \| good	1.664 \| good	3.587 \| good	0.151 \| good
2025-10-20T01:00:00.000Z	37 \| good	4.629 \| good	20.062 \| good	40.224 \| good	1.479 \| good	3.209 \| good	0.145 \| good
2025-10-20T02:00:00.000Z	37 \| good	3.968 \| good	17.217 \| good	39.768 \| good	1.294 \| good	2.83 \| good	0.14 \| good
2025-10-20T03:00:00.000Z	35 \| good	3.043 \| good	12.514 \| good	37.665 \| good	1.109 \| good	2.452 \| good	0.135 \| good
2025-10-20T04:00:00.000Z	33 \| good	2.621 \| good	10.56 \| good	35.948 \| good	0.895 \| good	2.115 \| good	0.121 \| good
2025-10-20T05:00:00.000Z	34 \| good	2.244 \| good	9.035 \| good	36.647 \| good	0.68 \| good	1.778 \| good	0.108 \| good
2025-10-20T06:00:00.000Z	38 \| good	2.091 \| good	8.067 \| good	40.816 \| good	0.466 \| good	1.442 \| good	0.095 \| good
2025-10-20T07:00:00.000Z	35 \| good	2.225 \| good	8.872 \| good	37.87 \| good	0.559 \| good	1.624 \| good	0.098 \| good
2025-10-20T08:00:00.000Z	32 \| good	2.608 \| good	10.606 \| good	34.533 \| good	0.652 \| good	1.806 \| good	0.101 \| good
2025-10-20T09:00:00.000Z	28 \| good	3.231 \| good	14.102 \| good	30.162 \| good	0.746 \| good	1.987 \| good	0.104 \| good
2025-10-20T10:00:00.000Z	22 \| good	3.907 \| good	17.078 \| good	24.12 \| good	1.07 \| good	2.946 \| good	0.12 \| good
2025-10-20T11:00:00.000Z	22 \| good	4.002 \| good	17.61 \| good	24.373 \| good	1.394 \| good	3.905 \| good	0.137 \| good
2025-10-20T12:00:00.000Z	25 \| good	2.635 \| good	10.84 \| good	26.895 \| good	1.718 \| good	4.864 \| good	0.153 \| good
2025-10-20T13:00:00.000Z	26 \| good	2.84 \| good	11.926 \| good	27.576 \| good	1.753 \| good	4.404 \| good	0.15 \| good
2025-10-20T14:00:00.000Z	28 \| good	2.423 \| good	9.926 \| good	30.253 \| good	1.788 \| good	3.943 \| good	0.147 \| good
2025-10-20T15:00:00.000Z	28 \| good	2.87 \| good	11.926 \| good	29.674 \| good	1.823 \| good	3.483 \| good	0.144 \| good
2025-10-20T16:00:00.000Z	27 \| good	3.903 \| good	17.283 \| good	29.302 \| good	1.441 \| good	2.788 \| good	0.139 \| good
2025-10-20T17:00:00.000Z	29 \| good	4.011 \| good	17.59 \| good	31.287 \| good	1.058 \| good	2.093 \| good	0.134 \| good
2025-10-20T18:00:00.000Z	31 \| good	3.632 \| good	15.934 \| good	32.874 \| good	0.676 \| good	1.398 \| good	0.129 \| good
2025-10-20T19:00:00.000Z	31 \| good	3.805 \| good	16.644 \| good	33.802 \| good	0.715 \| good	1.559 \| good	0.129 \| good
2025-10-20T20:00:00.000Z	32 \| good	3.96 \| good	17.239 \| good	35.035 \| good	0.753 \| good	1.72 \| good	0.129 \| good
2025-10-20T21:00:00.000Z	33 \| good	3.703 \| good	16.353 \| good	36.089 \| good	0.792 \| good	1.882 \| good	0.129 \| good
2025-10-20T22:00:00.000Z	30 \| good	3.311 \| good	14.226 \| good	32.065 \| good	0.879 \| good	2.509 \| good	0.133 \| good
2025-10-20T23:00:00.000Z	26 \| good	3.998 \| good	17.536 \| good	27.53 \| good	0.966 \| good	3.137 \| good	0.137 \| good
2025-10-21T00:00:00.000Z	27 \| good	5.233 \| good	22.537 \| good	27.032 \| good	1.053 \| good	3.765 \| good	0.141 \| good
2025-10-21T01:00:00.000Z	27 \| good	5.005 \| good	21.507 \| good	25.53 \| good	1.068 \| good	3.644 \| good	0.14 \| good
2025-10-21T02:00:00.000Z	27 \| good	4.603 \| good	20.011 \| good	24.89 \| good	1.082 \| good	3.523 \| good	0.139 \| good
2025-10-21T03:00:00.000Z	23 \| good	4.194 \| good	18.139 \| good	24.963 \| good	1.097 \| good	3.401 \| good	0.138 \| good
2025-10-21T04:00:00.000Z	22 \| good	4.109 \| good	18.03 \| good	23.905 \| good	1.095 \| good	3.277 \| good	0.137 \| good
2025-10-21T05:00:00.000Z	22 \| good	4.433 \| good	19.398 \| good	21.705 \| good	1.093 \| good	3.152 \| good	0.137 \| good
2025-10-21T06:00:00.000Z	28 \| good	2.309 \| good	2.348 \| good	29.801 \| good	1.071 \| good	3.002 \| good	0.136 \| good
2025-10-21T07:00:00.000Z	33 \| good	5.573 \| good	24.636 \| good	18.065 \| good	1.145 \| good	3.264 \| good	0.137 \| good
2025-10-21T08:00:00.000Z	38 \| good	6.51 \| good	28.763 \| good	15.595 \| good	1.199 \| good	3.501 \| good	0.138 \| good
2025-10-21T09:00:00.000Z	38 \| good	7.258 \| good	32.206 \| good	12.238 \| good	1.254 \| good	3.738 \| good	0.14 \| good
2025-10-21T10:00:00.000Z	44 \| good	7.97 \| good	34.89 \| good	10.494 \| good	1.474 \| good	5.081 \| good	0.152 \| good
2025-10-21T11:00:00.000Z	44 \| good	8.162 \| good	35.931 \| good	10.419 \| good	1.695 \| good	6.425 \| good	0.164 \| good
2025-10-21T12:00:00.000Z	33 \| good	5.711 \| good	5.729 \| good	19.418 \| good	1.889 \| good	7.761 \| good	0.175 \| good
2025-10-21T13:00:00.000Z	38 \| good	6.529 \| good	6.547 \| good	22.865 \| good	2.502 \| good	6.775 \| good	0.171 \| good

West Chester

Empower business decisions with accurate air quality data

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

0.45ppm

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 03:00:00, 2025-10-21.

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 2025-10-21.

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 33.

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

In West Chester, Pennsylvania, O3 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 4.929 μg/m³.

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

West Chester, Pennsylvania currently has a PM₁₀ concentration of 23.195 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 0.321 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 0.347 ppb.

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

West Chester, Pennsylvania currently has an ozone (O₃) concentration of 36.212 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 10.995 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-10-20T03:00:00.000Z	37 \| good	5.801 \| good	23.579 \| good	40.054 \| good	0.276 \| good	5.398 \| good	0.254 \| good
2025-10-20T04:00:00.000Z	37 \| good	4.8 \| good	24.018 \| good	39.775 \| good	0.216 \| good	4.683 \| good	0.254 \| good
2025-10-20T05:00:00.000Z	36 \| good	4.328 \| good	19.006 \| good	38.833 \| good	0.211 \| good	4.704 \| good	0.277 \| good
2025-10-20T06:00:00.000Z	37 \| good	3.41 \| good	19.324 \| good	39.906 \| good	0.275 \| good	3.72 \| good	0.244 \| good
2025-10-20T07:00:00.000Z	38 \| good	3.222 \| good	16.36 \| good	40.792 \| good	0.237 \| good	2.865 \| good	0.221 \| good
2025-10-20T08:00:00.000Z	34 \| good	2.723 \| good	12.063 \| good	37.162 \| good	0.247 \| good	3.214 \| good	0.236 \| good
2025-10-20T09:00:00.000Z	30 \| good	2.456 \| good	9.223 \| good	31.622 \| good	0.243 \| good	4.534 \| good	0.236 \| good
2025-10-20T10:00:00.000Z	31 \| good	2.641 \| good	13.02 \| good	33.962 \| good	0.27 \| good	4.766 \| good	0.275 \| good
2025-10-20T11:00:00.000Z	27 \| good	2.639 \| good	10.876 \| good	29.075 \| good	0.265 \| good	3.986 \| good	0.275 \| good
2025-10-20T12:00:00.000Z	26 \| good	1.681 \| good	6.78 \| good	28.429 \| good	0.247 \| good	3.752 \| good	0.279 \| good
2025-10-20T13:00:00.000Z	26 \| good	1.943 \| good	7.467 \| good	28.152 \| good	0.309 \| good	5.466 \| good	0.256 \| good
2025-10-20T14:00:00.000Z	24 \| good	1.298 \| good	5.12 \| good	25.544 \| good	0.313 \| good	4.731 \| good	0.245 \| good
2025-10-20T15:00:00.000Z	24 \| good	1.509 \| good	5.795 \| good	25.512 \| good	0.223 \| good	5.559 \| good	0.245 \| good
2025-10-20T16:00:00.000Z	26 \| good	2.013 \| good	9.452 \| good	28.145 \| good	0.202 \| good	3.691 \| good	0.276 \| good
2025-10-20T17:00:00.000Z	28 \| good	2.438 \| good	30.127 \| good	29.259 \| good	0.282 \| good	3.134 \| good	0.251 \| good
2025-10-20T18:00:00.000Z	28 \| good	2.614 \| good	10.696 \| good	29.898 \| good	0.189 \| good	3.469 \| good	0.199 \| good
2025-10-20T19:00:00.000Z	28 \| good	3.786 \| good	15.581 \| good	30.052 \| good	0.207 \| good	3.202 \| good	0.199 \| good
2025-10-20T20:00:00.000Z	28 \| good	3.885 \| good	19.505 \| good	29.744 \| good	0.243 \| good	3.089 \| good	0.192 \| good
2025-10-20T21:00:00.000Z	29 \| good	3.328 \| good	14.017 \| good	30.53 \| good	0.196 \| good	3.353 \| good	0.199 \| good
2025-10-20T22:00:00.000Z	28 \| good	3.198 \| good	15.612 \| good	29.663 \| good	0.214 \| good	2.82 \| good	0.192 \| good
2025-10-20T23:00:00.000Z	27 \| good	2.86 \| good	10.767 \| good	29.169 \| good	0.178 \| good	3.586 \| good	0.213 \| good
2025-10-21T00:00:00.000Z	25 \| good	3.006 \| good	12.901 \| good	27.451 \| good	0.164 \| good	4.388 \| good	0.246 \| good
2025-10-21T01:00:00.000Z	26 \| good	3.57 \| good	15.37 \| good	27.641 \| good	0.18 \| good	5.862 \| good	0.246 \| good
2025-10-21T02:00:00.000Z	25 \| good	4.005 \| good	15.055 \| good	26.594 \| good	0.178 \| good	6.549 \| good	0.263 \| good
2025-10-21T03:00:00.000Z	27 \| good	5.118 \| good	21.954 \| good	22.663 \| good	1.41 \| good	6.375 \| good	0.147 \| good
2025-10-21T04:00:00.000Z	22 \| good	3.962 \| good	17.599 \| good	22.709 \| good	0.184 \| good	7.623 \| good	0.289 \| good
2025-10-21T05:00:00.000Z	22 \| good	4.269 \| good	16.883 \| good	21.617 \| good	0.199 \| good	8.418 \| good	0.289 \| good
2025-10-21T06:00:00.000Z	27 \| good	4.542 \| good	19.389 \| good	19.473 \| good	0.192 \| good	8.261 \| good	0.221 \| good
2025-10-21T07:00:00.000Z	27 \| good	4.653 \| good	20.565 \| good	17.82 \| good	0.177 \| good	8.797 \| good	0.27 \| good
2025-10-21T08:00:00.000Z	27 \| good	4.591 \| good	25.683 \| good	17.588 \| good	0.201 \| good	8.21 \| good	0.245 \| good
2025-10-21T09:00:00.000Z	33 \| good	5.625 \| good	24.852 \| good	8.01 \| good	0.201 \| good	7.67 \| good	0.234 \| good
2025-10-21T10:00:00.000Z	33 \| good	5.766 \| good	35.249 \| good	10.903 \| good	0.264 \| good	9.935 \| good	0.288 \| good
2025-10-21T11:00:00.000Z	33 \| good	5.539 \| good	25.925 \| good	8.14 \| good	0.255 \| good	15.69 \| good	0.299 \| good
2025-10-21T12:00:00.000Z	27 \| good	5.206 \| good	20.984 \| good	8.793 \| good	0.254 \| good	17.383 \| good	0.397 \| good
2025-10-21T13:00:00.000Z	27 \| good	5.469 \| good	19.583 \| good	5.045 \| good	0.354 \| good	18.745 \| good	0.462 \| good
2025-10-21T14:00:00.000Z	33 \| good	6.448 \| good	22.879 \| good	7.882 \| good	0.661 \| good	21.388 \| good	0.459 \| good
2025-10-21T15:00:00.000Z	38 \| good	7.286 \| good	29.99 \| good	10.935 \| good	1.009 \| good	12.002 \| good	0.342 \| good
2025-10-21T16:00:00.000Z	27 \| good	5.292 \| good	23.248 \| good	17.809 \| good	0.688 \| good	8.736 \| good	0.299 \| good
2025-10-21T17:00:00.000Z	24 \| good	3.884 \| good	18.022 \| good	25.677 \| good	0.373 \| good	9.206 \| good	0.267 \| good
2025-10-21T18:00:00.000Z	28 \| good	3.579 \| good	19.339 \| good	29.939 \| good	0.27 \| good	7.763 \| good	0.267 \| good
2025-10-21T19:00:00.000Z	32 \| good	3.369 \| good	20.88 \| good	34.568 \| good	0.289 \| good	6.448 \| good	0.233 \| good
2025-10-21T20:00:00.000Z	35 \| good	4.036 \| good	15.078 \| good	37.613 \| good	0.286 \| good	5.802 \| good	0.233 \| good
2025-10-21T21:00:00.000Z	35 \| good	3.625 \| good	16.893 \| good	37.88 \| good	0.28 \| good	6.666 \| good	0.275 \| good
2025-10-21T22:00:00.000Z	35 \| good	4.083 \| good	18.5 \| good	37.697 \| good	0.298 \| good	7.705 \| good	0.275 \| good
2025-10-21T23:00:00.000Z	36 \| good	4.991 \| good	20.201 \| good	38.896 \| good	0.315 \| good	8.245 \| good	0.301 \| good
2025-10-22T00:00:00.000Z	31 \| good	5.193 \| good	24.165 \| good	33.026 \| good	0.319 \| good	12.043 \| good	0.325 \| good
2025-10-22T01:00:00.000Z	33 \| good	4.465 \| good	22.097 \| good	36.208 \| good	0.347 \| good	11.072 \| good	0.325 \| good
2025-10-22T02:00:00.000Z	33 \| good	4.929 \| good	23.195 \| good	36.212 \| good	0.347 \| good	10.995 \| good	0.321 \| good
2025-10-19T14:00:00.000Z	44 \| good	8.21 \| good	36 \| good	33.483 \| good	1.838 \| good	5.304 \| good	0.178 \| good
2025-10-19T15:00:00.000Z	44 \| good	8.34 \| good	36.517 \| good	40.346 \| good	1.957 \| good	4.135 \| good	0.178 \| good
2025-10-19T16:00:00.000Z	44 \| good	8.461 \| good	37.05 \| good	45.712 \| good	1.928 \| good	3.328 \| good	0.172 \| good
2025-10-19T17:00:00.000Z	44 \| good	8.109 \| good	35.31 \| good	48.46 \| good	1.898 \| good	2.52 \| good	0.165 \| good
2025-10-19T18:00:00.000Z	48 \| good	7.845 \| good	34.257 \| good	52.266 \| good	1.868 \| good	1.712 \| good	0.159 \| good
2025-10-19T19:00:00.000Z	50 \| good	7.576 \| good	33.257 \| good	53.932 \| good	1.819 \| good	1.934 \| good	0.155 \| good
2025-10-19T20:00:00.000Z	49 \| good	7.127 \| good	31.878 \| good	52.778 \| good	1.769 \| good	2.156 \| good	0.151 \| good
2025-10-19T21:00:00.000Z	46 \| good	6.756 \| good	30 \| good	50.164 \| good	1.719 \| good	2.378 \| good	0.146 \| good
2025-10-19T22:00:00.000Z	42 \| good	6.365 \| good	28.236 \| good	45.296 \| good	1.701 \| good	2.781 \| good	0.148 \| good
2025-10-19T23:00:00.000Z	38 \| good	6.803 \| good	30.043 \| good	39.6 \| good	1.682 \| good	3.184 \| good	0.149 \| good
2025-10-20T00:00:00.000Z	37 \| good	6.173 \| good	27.344 \| good	40.265 \| good	1.664 \| good	3.587 \| good	0.151 \| good
2025-10-20T01:00:00.000Z	37 \| good	4.629 \| good	20.062 \| good	40.224 \| good	1.479 \| good	3.209 \| good	0.145 \| good
2025-10-20T02:00:00.000Z	37 \| good	3.968 \| good	17.217 \| good	39.768 \| good	1.294 \| good	2.83 \| good	0.14 \| good
2025-10-20T03:00:00.000Z	35 \| good	3.043 \| good	12.514 \| good	37.665 \| good	1.109 \| good	2.452 \| good	0.135 \| good
2025-10-20T04:00:00.000Z	33 \| good	2.621 \| good	10.56 \| good	35.948 \| good	0.895 \| good	2.115 \| good	0.121 \| good
2025-10-20T05:00:00.000Z	34 \| good	2.244 \| good	9.035 \| good	36.647 \| good	0.68 \| good	1.778 \| good	0.108 \| good
2025-10-20T06:00:00.000Z	38 \| good	2.091 \| good	8.067 \| good	40.816 \| good	0.466 \| good	1.442 \| good	0.095 \| good
2025-10-20T07:00:00.000Z	35 \| good	2.225 \| good	8.872 \| good	37.87 \| good	0.559 \| good	1.624 \| good	0.098 \| good
2025-10-20T08:00:00.000Z	32 \| good	2.608 \| good	10.606 \| good	34.533 \| good	0.652 \| good	1.806 \| good	0.101 \| good
2025-10-20T09:00:00.000Z	28 \| good	3.231 \| good	14.102 \| good	30.162 \| good	0.746 \| good	1.987 \| good	0.104 \| good
2025-10-20T10:00:00.000Z	22 \| good	3.907 \| good	17.078 \| good	24.12 \| good	1.07 \| good	2.946 \| good	0.12 \| good
2025-10-20T11:00:00.000Z	22 \| good	4.002 \| good	17.61 \| good	24.373 \| good	1.394 \| good	3.905 \| good	0.137 \| good
2025-10-20T12:00:00.000Z	25 \| good	2.635 \| good	10.84 \| good	26.895 \| good	1.718 \| good	4.864 \| good	0.153 \| good
2025-10-20T13:00:00.000Z	26 \| good	2.84 \| good	11.926 \| good	27.576 \| good	1.753 \| good	4.404 \| good	0.15 \| good
2025-10-20T14:00:00.000Z	28 \| good	2.423 \| good	9.926 \| good	30.253 \| good	1.788 \| good	3.943 \| good	0.147 \| good
2025-10-20T15:00:00.000Z	28 \| good	2.87 \| good	11.926 \| good	29.674 \| good	1.823 \| good	3.483 \| good	0.144 \| good
2025-10-20T16:00:00.000Z	27 \| good	3.903 \| good	17.283 \| good	29.302 \| good	1.441 \| good	2.788 \| good	0.139 \| good
2025-10-20T17:00:00.000Z	29 \| good	4.011 \| good	17.59 \| good	31.287 \| good	1.058 \| good	2.093 \| good	0.134 \| good
2025-10-20T18:00:00.000Z	31 \| good	3.632 \| good	15.934 \| good	32.874 \| good	0.676 \| good	1.398 \| good	0.129 \| good
2025-10-20T19:00:00.000Z	31 \| good	3.805 \| good	16.644 \| good	33.802 \| good	0.715 \| good	1.559 \| good	0.129 \| good
2025-10-20T20:00:00.000Z	32 \| good	3.96 \| good	17.239 \| good	35.035 \| good	0.753 \| good	1.72 \| good	0.129 \| good
2025-10-20T21:00:00.000Z	33 \| good	3.703 \| good	16.353 \| good	36.089 \| good	0.792 \| good	1.882 \| good	0.129 \| good
2025-10-20T22:00:00.000Z	30 \| good	3.311 \| good	14.226 \| good	32.065 \| good	0.879 \| good	2.509 \| good	0.133 \| good
2025-10-20T23:00:00.000Z	26 \| good	3.998 \| good	17.536 \| good	27.53 \| good	0.966 \| good	3.137 \| good	0.137 \| good
2025-10-21T00:00:00.000Z	27 \| good	5.233 \| good	22.537 \| good	27.032 \| good	1.053 \| good	3.765 \| good	0.141 \| good
2025-10-21T01:00:00.000Z	27 \| good	5.005 \| good	21.507 \| good	25.53 \| good	1.068 \| good	3.644 \| good	0.14 \| good
2025-10-21T02:00:00.000Z	27 \| good	4.603 \| good	20.011 \| good	24.89 \| good	1.082 \| good	3.523 \| good	0.139 \| good
2025-10-21T03:00:00.000Z	23 \| good	4.194 \| good	18.139 \| good	24.963 \| good	1.097 \| good	3.401 \| good	0.138 \| good
2025-10-21T04:00:00.000Z	22 \| good	4.109 \| good	18.03 \| good	23.905 \| good	1.095 \| good	3.277 \| good	0.137 \| good
2025-10-21T05:00:00.000Z	22 \| good	4.433 \| good	19.398 \| good	21.705 \| good	1.093 \| good	3.152 \| good	0.137 \| good
2025-10-21T06:00:00.000Z	28 \| good	2.309 \| good	2.348 \| good	29.801 \| good	1.071 \| good	3.002 \| good	0.136 \| good
2025-10-21T07:00:00.000Z	33 \| good	5.573 \| good	24.636 \| good	18.065 \| good	1.145 \| good	3.264 \| good	0.137 \| good
2025-10-21T08:00:00.000Z	38 \| good	6.51 \| good	28.763 \| good	15.595 \| good	1.199 \| good	3.501 \| good	0.138 \| good
2025-10-21T09:00:00.000Z	38 \| good	7.258 \| good	32.206 \| good	12.238 \| good	1.254 \| good	3.738 \| good	0.14 \| good
2025-10-21T10:00:00.000Z	44 \| good	7.97 \| good	34.89 \| good	10.494 \| good	1.474 \| good	5.081 \| good	0.152 \| good
2025-10-21T11:00:00.000Z	44 \| good	8.162 \| good	35.931 \| good	10.419 \| good	1.695 \| good	6.425 \| good	0.164 \| good
2025-10-21T12:00:00.000Z	33 \| good	5.711 \| good	5.729 \| good	19.418 \| good	1.889 \| good	7.761 \| good	0.175 \| good
2025-10-21T13:00:00.000Z	38 \| good	6.529 \| good	6.547 \| good	22.865 \| good	2.502 \| good	6.775 \| good	0.171 \| 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?