What is the sulfur dioxide (SO2) level in Willistown, Pennsylvania at the moment?

Currently, Willistown, Pennsylvania has a sulfur dioxide (SO2) concentration of 0.497 ppb.

What is the ozone (O3) level in Willistown, Pennsylvania at the moment?

The current ozone (O3) level in Willistown, Pennsylvania at the moment is 19.922 ppm.

What is the nitrogen dioxide (NO2) level in Willistown, Pennsylvania at the moment?

Nitrogen dioxide (NO2) level in Willistown, Pennsylvania at the moment is 12.079 ppb.

Live air quality index in Willistown, Pennsylvania today

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

Stay updated with real-time air quality in Willistown, 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

Willistown, Pennsylvania

Last updated: ... (Local time)

Major air pollutants in Willistown, Pennsylvania

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

11.05 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

63.97 μg/m³

155

255

425

605+

Ozone (O₃)

38.52 ppb

201

201+

Sulfur Dioxide (SO₂)

0.63 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

6.29 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.35 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Willistown, Pennsylvania

Get Live Pollen Counts

Willistown, Pennsylvania

Scroll To Air Quality Map

Track live Willistown, Pennsylvania air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-29T20:00:00.000Z	54 \| moderate	10.63 \| good	44.466 \| good	54.232 \| good	0.585 \| good	6.154 \| good	0.296 \| good
2025-07-29T21:00:00.000Z	54 \| moderate	10.771 \| good	49.416 \| good	52.813 \| good	0.57 \| good	3.43 \| good	0.242 \| good
2025-07-29T22:00:00.000Z	62 \| moderate	15.136 \| fine	55.203 \| fine	54.267 \| good	0.587 \| good	2.631 \| good	0.286 \| good
2025-07-29T23:00:00.000Z	54 \| moderate	11.355 \| good	53.332 \| good	53.189 \| good	0.59 \| good	4.6 \| good	0.303 \| good
2025-07-30T00:00:00.000Z	71 \| moderate	11.466 \| good	43.007 \| good	60.937 \| fine	0.584 \| good	4.849 \| good	0.42 \| good
2025-07-30T01:00:00.000Z	74 \| moderate	10.918 \| good	45.429 \| good	61.702 \| fine	0.631 \| good	12.375 \| good	0.42 \| good
2025-07-30T02:00:00.000Z	77 \| moderate	12.549 \| fine	56.684 \| fine	63.463 \| fine	0.607 \| good	15.422 \| good	0.384 \| good
2025-07-30T03:00:00.000Z	75 \| moderate	22.375 \| fine	98.78 \| fine	44.392 \| good	2.154 \| good	11.499 \| good	0.327 \| good
2025-07-30T04:00:00.000Z	60 \| moderate	14.426 \| fine	61.35 \| fine	44.292 \| good	0.554 \| good	9.531 \| good	0.391 \| good
2025-07-30T05:00:00.000Z	54 \| moderate	11.283 \| good	53.31 \| good	38.88 \| good	0.482 \| good	14.642 \| good	0.391 \| good
2025-07-30T06:00:00.000Z	58 \| moderate	13.44 \| fine	53.393 \| good	42.24 \| good	0.402 \| good	15.043 \| good	0.415 \| good
2025-07-30T07:00:00.000Z	54 \| moderate	11.021 \| good	46.624 \| good	30.325 \| good	1.123 \| good	14.746 \| good	0.415 \| good
2025-07-30T08:00:00.000Z	54 \| moderate	11.343 \| good	54.183 \| good	32.081 \| good	1.075 \| good	14.813 \| good	0.369 \| good
2025-07-30T09:00:00.000Z	54 \| moderate	10.983 \| good	46.751 \| good	29.642 \| good	0.471 \| good	15.895 \| good	0.397 \| good
2025-07-30T10:00:00.000Z	54 \| moderate	11.366 \| good	43.969 \| good	33.29 \| good	0.694 \| good	14.799 \| good	0.391 \| good
2025-07-30T11:00:00.000Z	58 \| moderate	12.661 \| fine	51.862 \| good	17.123 \| good	0.68 \| good	8.666 \| good	0.449 \| good
2025-07-30T12:00:00.000Z	58 \| moderate	12.835 \| fine	61.025 \| fine	23.013 \| good	0.616 \| good	14.042 \| good	0.56 \| good
2025-07-30T13:00:00.000Z	58 \| moderate	12.605 \| fine	54.616 \| good	23.937 \| good	0.42 \| good	14.884 \| good	0.535 \| good
2025-07-30T14:00:00.000Z	56 \| moderate	12.015 \| good	46.345 \| good	29.737 \| good	0.419 \| good	8.762 \| good	0.478 \| good
2025-07-30T15:00:00.000Z	56 \| moderate	12.075 \| good	42.506 \| good	35.382 \| good	0.318 \| good	6.568 \| good	0.377 \| good
2025-07-30T16:00:00.000Z	58 \| moderate	13.427 \| fine	46.402 \| good	47.497 \| good	0.415 \| good	4.969 \| good	0.359 \| good
2025-07-30T17:00:00.000Z	56 \| moderate	12.252 \| fine	55.493 \| fine	54.85 \| good	0.454 \| good	4.908 \| good	0.348 \| good
2025-07-30T18:00:00.000Z	80 \| moderate	13.591 \| fine	51.309 \| good	64.11 \| fine	0.535 \| good	7.936 \| good	0.296 \| good
2025-07-30T19:00:00.000Z	64 \| moderate	15.66 \| fine	62.165 \| fine	59.048 \| fine	0.322 \| good	8.41 \| good	0.321 \| good
2025-07-30T20:00:00.000Z	84 \| moderate	16.192 \| fine	61.051 \| fine	65.177 \| fine	0.399 \| good	6.077 \| good	0.351 \| good
2025-07-30T21:00:00.000Z	90 \| moderate	13.846 \| fine	60.972 \| fine	66.58 \| fine	0.395 \| good	5.825 \| good	0.361 \| good
2025-07-30T22:00:00.000Z	64 \| moderate	15.838 \| fine	55.454 \| fine	59.282 \| fine	0.388 \| good	6.998 \| good	0.361 \| good
2025-07-30T23:00:00.000Z	60 \| moderate	13.954 \| fine	58.511 \| fine	55.63 \| fine	0.397 \| good	5.038 \| good	0.339 \| good
2025-07-31T00:00:00.000Z	60 \| moderate	13.588 \| fine	61.369 \| fine	47.875 \| good	0.273 \| good	4.265 \| good	0.328 \| good
2025-07-31T01:00:00.000Z	58 \| moderate	12.568 \| fine	52.34 \| good	45.13 \| good	0.238 \| good	6.552 \| good	0.328 \| good
2025-07-31T02:00:00.000Z	58 \| moderate	13.295 \| fine	60.466 \| fine	40.202 \| good	0.417 \| good	4.547 \| good	0.355 \| good
2025-07-31T03:00:00.000Z	54 \| moderate	11.009 \| good	50.475 \| good	40.394 \| good	0.306 \| good	12.639 \| good	0.337 \| good
2025-07-31T04:00:00.000Z	54 \| moderate	11.421 \| good	48.071 \| good	41.295 \| good	0.309 \| good	5.574 \| good	0.337 \| good
2025-07-31T05:00:00.000Z	58 \| moderate	13.038 \| fine	57.971 \| fine	27.123 \| good	0.354 \| good	7.365 \| good	0.337 \| good
2025-07-31T06:00:00.000Z	56 \| moderate	11.626 \| good	55.129 \| fine	29.337 \| good	0.578 \| good	6.822 \| good	0.351 \| good
2025-07-31T07:00:00.000Z	54 \| moderate	10.819 \| good	37.034 \| good	19.703 \| good	0.447 \| good	4.897 \| good	0.311 \| good
2025-07-31T08:00:00.000Z	54 \| moderate	10.538 \| good	44.014 \| good	23.613 \| good	0.412 \| good	6.663 \| good	0.311 \| good
2025-07-31T09:00:00.000Z	54 \| moderate	10.854 \| good	48.904 \| good	20.094 \| good	0.273 \| good	8.298 \| good	0.311 \| good
2025-07-31T10:00:00.000Z	56 \| moderate	12.384 \| fine	51.714 \| good	23.227 \| good	0.343 \| good	10.811 \| good	0.311 \| good
2025-07-31T11:00:00.000Z	56 \| moderate	12.444 \| fine	51.141 \| good	13.631 \| good	0.264 \| good	12.164 \| good	0.311 \| good
2025-07-31T12:00:00.000Z	54 \| moderate	10.745 \| good	31.958 \| good	22.72 \| good	0.246 \| good	9.493 \| good	0.334 \| good
2025-07-31T13:00:00.000Z	52 \| moderate	10.146 \| good	39.717 \| good	22.419 \| good	0.252 \| good	8.207 \| good	0.409 \| good
2025-07-31T14:00:00.000Z	54 \| moderate	11.081 \| good	50.679 \| good	26.78 \| good	0.25 \| good	12.98 \| good	0.463 \| good
2025-07-31T15:00:00.000Z	58 \| moderate	13.115 \| fine	52.121 \| good	32.21 \| good	0.227 \| good	8.323 \| good	0.419 \| good
2025-07-31T16:00:00.000Z	58 \| moderate	13.159 \| fine	48.124 \| good	38.159 \| good	0.407 \| good	10.189 \| good	0.379 \| good
2025-07-31T17:00:00.000Z	60 \| moderate	13.815 \| fine	70.055 \| fine	39.808 \| good	0.578 \| good	8.566 \| good	0.349 \| good
2025-07-31T18:00:00.000Z	54 \| moderate	11.047 \| good	45.6 \| good	33.052 \| good	0.249 \| good	8.349 \| good	0.325 \| good
2025-07-31T19:00:00.000Z	49 \| good	9.3 \| good	37.269 \| good	35.624 \| good	0.621 \| good	6.678 \| good	0.353 \| good
2025-07-31T19:00:00.000Z	55 \| moderate	11.055 \| good	63.971 \| fine	38.521 \| good	0.632 \| good	6.294 \| good	0.354 \| good
2025-07-23T15:00:00.000Z	44 \| good	8.267 \| good	36.488 \| good	43.596 \| good	1.343 \| good	2.291 \| good	0.173 \| good
2025-07-23T16:00:00.000Z	44 \| good	8.455 \| good	37.124 \| good	46.783 \| good	1.344 \| good	2.016 \| good	0.173 \| good
2025-07-23T17:00:00.000Z	49 \| good	9.139 \| good	40.192 \| good	49.837 \| good	1.346 \| good	1.741 \| good	0.172 \| good
2025-07-23T18:00:00.000Z	52 \| moderate	9.941 \| good	44.079 \| good	52.752 \| good	1.348 \| good	1.466 \| good	0.172 \| good
2025-07-23T19:00:00.000Z	52 \| moderate	10.378 \| good	45.949 \| good	54.576 \| good	1.247 \| good	1.661 \| good	0.173 \| good
2025-07-23T20:00:00.000Z	54 \| moderate	10.546 \| good	46.62 \| good	54.225 \| good	1.145 \| good	1.856 \| good	0.174 \| good
2025-07-23T21:00:00.000Z	54 \| moderate	11.086 \| good	49.108 \| good	49.264 \| good	1.044 \| good	2.052 \| good	0.175 \| good
2025-07-23T22:00:00.000Z	54 \| moderate	10.541 \| good	46.71 \| good	44.619 \| good	1.046 \| good	3.617 \| good	0.186 \| good
2025-07-23T23:00:00.000Z	52 \| moderate	9.919 \| good	44.283 \| good	40.588 \| good	1.047 \| good	5.182 \| good	0.198 \| good
2025-07-24T00:00:00.000Z	49 \| good	8.884 \| good	39.45 \| good	34.396 \| good	1.049 \| good	6.747 \| good	0.209 \| good
2025-07-24T01:00:00.000Z	44 \| good	7.518 \| good	33.039 \| good	28.918 \| good	1.001 \| good	6.359 \| good	0.196 \| good
2025-07-24T02:00:00.000Z	38 \| good	7.087 \| good	31.261 \| good	25.155 \| good	0.953 \| good	5.971 \| good	0.183 \| good
2025-07-24T03:00:00.000Z	38 \| good	6.871 \| good	30.73 \| good	24.384 \| good	0.905 \| good	5.582 \| good	0.17 \| good
2025-07-24T04:00:00.000Z	33 \| good	6.171 \| good	27.261 \| good	23.436 \| good	0.851 \| good	5.278 \| good	0.165 \| good
2025-07-24T05:00:00.000Z	27 \| good	5.443 \| good	23.096 \| good	22.094 \| good	0.797 \| good	4.974 \| good	0.16 \| good
2025-07-24T06:00:00.000Z	27 \| good	5.309 \| good	22.904 \| good	21.132 \| good	0.743 \| good	4.67 \| good	0.155 \| good
2025-07-24T07:00:00.000Z	27 \| good	5.137 \| good	22.147 \| good	20.825 \| good	0.793 \| good	4.565 \| good	0.153 \| good
2025-07-24T08:00:00.000Z	27 \| good	5.028 \| good	21.72 \| good	19.696 \| good	0.843 \| good	4.46 \| good	0.152 \| good
2025-07-24T09:00:00.000Z	33 \| good	5.679 \| good	24.341 \| good	17.277 \| good	0.893 \| good	4.355 \| good	0.151 \| good
2025-07-24T10:00:00.000Z	33 \| good	5.588 \| good	24.114 \| good	15.264 \| good	0.984 \| good	4.474 \| good	0.158 \| good
2025-07-24T11:00:00.000Z	33 \| good	6.335 \| good	28.334 \| good	18.141 \| good	1.074 \| good	4.593 \| good	0.165 \| good
2025-07-24T12:00:00.000Z	33 \| good	6.213 \| good	27.309 \| good	25.152 \| good	1.164 \| good	4.712 \| good	0.172 \| good
2025-07-24T13:00:00.000Z	33 \| good	6.467 \| good	28.981 \| good	32.16 \| good	1.275 \| good	3.813 \| good	0.17 \| good
2025-07-24T14:00:00.000Z	39 \| good	7.158 \| good	31.563 \| good	41.796 \| good	1.385 \| good	2.914 \| good	0.169 \| good
2025-07-24T15:00:00.000Z	43 \| good	7.358 \| good	32.278 \| good	45.98 \| good	1.496 \| good	2.015 \| good	0.168 \| good
2025-07-24T16:00:00.000Z	44 \| good	8.105 \| good	35.424 \| good	46.886 \| good	1.366 \| good	1.744 \| good	0.17 \| good
2025-07-24T17:00:00.000Z	49 \| good	9.177 \| good	41.099 \| good	46.684 \| good	1.235 \| good	1.473 \| good	0.172 \| good
2025-07-24T18:00:00.000Z	52 \| moderate	9.707 \| good	43.282 \| good	45.644 \| good	1.105 \| good	1.202 \| good	0.175 \| good
2025-07-24T19:00:00.000Z	52 \| moderate	9.925 \| good	44.089 \| good	42.273 \| good	1.07 \| good	1.335 \| good	0.176 \| good
2025-07-24T20:00:00.000Z	52 \| moderate	9.884 \| good	43.943 \| good	40.226 \| good	1.034 \| good	1.468 \| good	0.178 \| good
2025-07-24T21:00:00.000Z	52 \| moderate	9.537 \| good	42.633 \| good	39.259 \| good	0.999 \| good	1.601 \| good	0.18 \| good
2025-07-24T22:00:00.000Z	52 \| moderate	9.73 \| good	43.238 \| good	37.563 \| good	1.01 \| good	2.678 \| good	0.185 \| good
2025-07-24T23:00:00.000Z	49 \| good	9.288 \| good	41.524 \| good	33.571 \| good	1.021 \| good	3.755 \| good	0.191 \| good
2025-07-25T00:00:00.000Z	44 \| good	8.39 \| good	36.8 \| good	26.685 \| good	1.031 \| good	4.833 \| good	0.197 \| good
2025-07-25T01:00:00.000Z	38 \| good	7.289 \| good	31.868 \| good	24.263 \| good	1.054 \| good	4.979 \| good	0.193 \| good
2025-07-25T02:00:00.000Z	44 \| good	7.637 \| good	33.96 \| good	23.613 \| good	1.077 \| good	5.125 \| good	0.188 \| good
2025-07-25T03:00:00.000Z	38 \| good	7.464 \| good	32.797 \| good	23.784 \| good	1.1 \| good	5.271 \| good	0.184 \| good
2025-07-25T04:00:00.000Z	33 \| good	6.34 \| good	28.421 \| good	22.991 \| good	1.047 \| good	4.976 \| good	0.182 \| good
2025-07-25T05:00:00.000Z	27 \| good	5.052 \| good	21.671 \| good	21.657 \| good	0.995 \| good	4.682 \| good	0.181 \| good
2025-07-25T06:00:00.000Z	22 \| good	4.411 \| good	19.068 \| good	22.081 \| good	0.942 \| good	4.388 \| good	0.18 \| good
2025-07-25T07:00:00.000Z	22 \| good	4.15 \| good	18.208 \| good	22.939 \| good	1.078 \| good	4.418 \| good	0.187 \| good
2025-07-25T08:00:00.000Z	27 \| good	4.865 \| good	21.027 \| good	23.823 \| good	1.214 \| good	4.448 \| good	0.195 \| good
2025-07-25T09:00:00.000Z	33 \| good	6.178 \| good	27.317 \| good	23.553 \| good	1.349 \| good	4.478 \| good	0.202 \| good
2025-07-25T10:00:00.000Z	27 \| good	5.113 \| good	22.087 \| good	20.457 \| good	1.432 \| good	4.398 \| good	0.21 \| good
2025-07-25T11:00:00.000Z	27 \| good	5.429 \| good	23.144 \| good	21.746 \| good	1.514 \| good	4.319 \| good	0.219 \| good
2025-07-25T12:00:00.000Z	33 \| good	6.422 \| good	28.538 \| good	25.291 \| good	1.597 \| good	4.239 \| good	0.227 \| good
2025-07-25T13:00:00.000Z	44 \| good	8.192 \| good	35.983 \| good	30.908 \| good	1.8 \| good	3.604 \| good	0.231 \| good
2025-07-25T14:00:00.000Z	52 \| moderate	10.311 \| good	45.942 \| good	37.376 \| good	2.002 \| good	2.968 \| good	0.235 \| good

Willistown

Get reliable air quality data to drive your business

Willistown, Pennsylvania air quality map: Stay updated on AQI near you

0.43ppm

How accurate is Pennsylvania, USA air quality data?

Air quality and pollutant data for Pennsylvania, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.

Source: Ambee Data Sources

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Frequently asked questions

How often is air quality information updated for Willistown, Pennsylvania?

The air quality information for Willistown, Pennsylvania is updated every hour for accuracy.

What time in the last 24 hours was the air quality in Willistown, Pennsylvania at its worst?

In the past 24 hours, the air quality in Willistown, Pennsylvania was at its worst at 10:00:00 on 2025-07-22.

When did Willistown, Pennsylvania experience the best air quality in the last 24 hours?

In the last 24 hours, the best air quality in Willistown, Pennsylvania was observed at 08:00:00 on 2025-07-23.

What is the AQI in Willistown, Pennsylvania right now?

As of now, the AQI in Willistown, Pennsylvania is 38, indicating Good conditions.

What is the most common type of pollution in Willistown, Pennsylvania?

Willistown, Pennsylvania air has the highest levels of PM2.5.

What should I do in case of poor air quality in Willistown, Pennsylvania?

Poor air quality in Willistown, Pennsylvania means it's advisable to stay indoors and wear a mask for your protection.

What is the PM_2.5 level in Willistown, Pennsylvania at the moment?

PM_2.5 levels in Willistown, Pennsylvania are currently 7.173 μg/m³.

What is the PM₁₀ level in Willistown, Pennsylvania at the moment?

The PM₁₀ concentration in Willistown, Pennsylvania is 34.999 μg/m³ at the moment.

What is the carbon monoxide (CO) level in Willistown, Pennsylvania at the moment?

The current carbon monoxide (CO) concentration in Willistown, Pennsylvania is 0.446 ppm.

What is the sulfur dioxide (SO₂) level in Willistown, Pennsylvania at the moment?

Currently, Willistown, Pennsylvania has a sulfur dioxide (SO₂) concentration of 0.497 ppb.

What is the ozone (O₃) level in Willistown, Pennsylvania at the moment?

The current ozone (O₃) level in Willistown, Pennsylvania at the moment is 19.922 ppm.

What is the nitrogen dioxide (NO₂) level in Willistown, Pennsylvania at the moment?

Nitrogen dioxide (NO₂) level in Willistown, Pennsylvania at the moment is 12.079 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-29T20:00:00.000Z	54 \| moderate	10.63 \| good	44.466 \| good	54.232 \| good	0.585 \| good	6.154 \| good	0.296 \| good
2025-07-29T21:00:00.000Z	54 \| moderate	10.771 \| good	49.416 \| good	52.813 \| good	0.57 \| good	3.43 \| good	0.242 \| good
2025-07-29T22:00:00.000Z	62 \| moderate	15.136 \| fine	55.203 \| fine	54.267 \| good	0.587 \| good	2.631 \| good	0.286 \| good
2025-07-29T23:00:00.000Z	54 \| moderate	11.355 \| good	53.332 \| good	53.189 \| good	0.59 \| good	4.6 \| good	0.303 \| good
2025-07-30T00:00:00.000Z	71 \| moderate	11.466 \| good	43.007 \| good	60.937 \| fine	0.584 \| good	4.849 \| good	0.42 \| good
2025-07-30T01:00:00.000Z	74 \| moderate	10.918 \| good	45.429 \| good	61.702 \| fine	0.631 \| good	12.375 \| good	0.42 \| good
2025-07-30T02:00:00.000Z	77 \| moderate	12.549 \| fine	56.684 \| fine	63.463 \| fine	0.607 \| good	15.422 \| good	0.384 \| good
2025-07-30T03:00:00.000Z	75 \| moderate	22.375 \| fine	98.78 \| fine	44.392 \| good	2.154 \| good	11.499 \| good	0.327 \| good
2025-07-30T04:00:00.000Z	60 \| moderate	14.426 \| fine	61.35 \| fine	44.292 \| good	0.554 \| good	9.531 \| good	0.391 \| good
2025-07-30T05:00:00.000Z	54 \| moderate	11.283 \| good	53.31 \| good	38.88 \| good	0.482 \| good	14.642 \| good	0.391 \| good
2025-07-30T06:00:00.000Z	58 \| moderate	13.44 \| fine	53.393 \| good	42.24 \| good	0.402 \| good	15.043 \| good	0.415 \| good
2025-07-30T07:00:00.000Z	54 \| moderate	11.021 \| good	46.624 \| good	30.325 \| good	1.123 \| good	14.746 \| good	0.415 \| good
2025-07-30T08:00:00.000Z	54 \| moderate	11.343 \| good	54.183 \| good	32.081 \| good	1.075 \| good	14.813 \| good	0.369 \| good
2025-07-30T09:00:00.000Z	54 \| moderate	10.983 \| good	46.751 \| good	29.642 \| good	0.471 \| good	15.895 \| good	0.397 \| good
2025-07-30T10:00:00.000Z	54 \| moderate	11.366 \| good	43.969 \| good	33.29 \| good	0.694 \| good	14.799 \| good	0.391 \| good
2025-07-30T11:00:00.000Z	58 \| moderate	12.661 \| fine	51.862 \| good	17.123 \| good	0.68 \| good	8.666 \| good	0.449 \| good
2025-07-30T12:00:00.000Z	58 \| moderate	12.835 \| fine	61.025 \| fine	23.013 \| good	0.616 \| good	14.042 \| good	0.56 \| good
2025-07-30T13:00:00.000Z	58 \| moderate	12.605 \| fine	54.616 \| good	23.937 \| good	0.42 \| good	14.884 \| good	0.535 \| good
2025-07-30T14:00:00.000Z	56 \| moderate	12.015 \| good	46.345 \| good	29.737 \| good	0.419 \| good	8.762 \| good	0.478 \| good
2025-07-30T15:00:00.000Z	56 \| moderate	12.075 \| good	42.506 \| good	35.382 \| good	0.318 \| good	6.568 \| good	0.377 \| good
2025-07-30T16:00:00.000Z	58 \| moderate	13.427 \| fine	46.402 \| good	47.497 \| good	0.415 \| good	4.969 \| good	0.359 \| good
2025-07-30T17:00:00.000Z	56 \| moderate	12.252 \| fine	55.493 \| fine	54.85 \| good	0.454 \| good	4.908 \| good	0.348 \| good
2025-07-30T18:00:00.000Z	80 \| moderate	13.591 \| fine	51.309 \| good	64.11 \| fine	0.535 \| good	7.936 \| good	0.296 \| good
2025-07-30T19:00:00.000Z	64 \| moderate	15.66 \| fine	62.165 \| fine	59.048 \| fine	0.322 \| good	8.41 \| good	0.321 \| good
2025-07-30T20:00:00.000Z	84 \| moderate	16.192 \| fine	61.051 \| fine	65.177 \| fine	0.399 \| good	6.077 \| good	0.351 \| good
2025-07-30T21:00:00.000Z	90 \| moderate	13.846 \| fine	60.972 \| fine	66.58 \| fine	0.395 \| good	5.825 \| good	0.361 \| good
2025-07-30T22:00:00.000Z	64 \| moderate	15.838 \| fine	55.454 \| fine	59.282 \| fine	0.388 \| good	6.998 \| good	0.361 \| good
2025-07-30T23:00:00.000Z	60 \| moderate	13.954 \| fine	58.511 \| fine	55.63 \| fine	0.397 \| good	5.038 \| good	0.339 \| good
2025-07-31T00:00:00.000Z	60 \| moderate	13.588 \| fine	61.369 \| fine	47.875 \| good	0.273 \| good	4.265 \| good	0.328 \| good
2025-07-31T01:00:00.000Z	58 \| moderate	12.568 \| fine	52.34 \| good	45.13 \| good	0.238 \| good	6.552 \| good	0.328 \| good
2025-07-31T02:00:00.000Z	58 \| moderate	13.295 \| fine	60.466 \| fine	40.202 \| good	0.417 \| good	4.547 \| good	0.355 \| good
2025-07-31T03:00:00.000Z	54 \| moderate	11.009 \| good	50.475 \| good	40.394 \| good	0.306 \| good	12.639 \| good	0.337 \| good
2025-07-31T04:00:00.000Z	54 \| moderate	11.421 \| good	48.071 \| good	41.295 \| good	0.309 \| good	5.574 \| good	0.337 \| good
2025-07-31T05:00:00.000Z	58 \| moderate	13.038 \| fine	57.971 \| fine	27.123 \| good	0.354 \| good	7.365 \| good	0.337 \| good
2025-07-31T06:00:00.000Z	56 \| moderate	11.626 \| good	55.129 \| fine	29.337 \| good	0.578 \| good	6.822 \| good	0.351 \| good
2025-07-31T07:00:00.000Z	54 \| moderate	10.819 \| good	37.034 \| good	19.703 \| good	0.447 \| good	4.897 \| good	0.311 \| good
2025-07-31T08:00:00.000Z	54 \| moderate	10.538 \| good	44.014 \| good	23.613 \| good	0.412 \| good	6.663 \| good	0.311 \| good
2025-07-31T09:00:00.000Z	54 \| moderate	10.854 \| good	48.904 \| good	20.094 \| good	0.273 \| good	8.298 \| good	0.311 \| good
2025-07-31T10:00:00.000Z	56 \| moderate	12.384 \| fine	51.714 \| good	23.227 \| good	0.343 \| good	10.811 \| good	0.311 \| good
2025-07-31T11:00:00.000Z	56 \| moderate	12.444 \| fine	51.141 \| good	13.631 \| good	0.264 \| good	12.164 \| good	0.311 \| good
2025-07-31T12:00:00.000Z	54 \| moderate	10.745 \| good	31.958 \| good	22.72 \| good	0.246 \| good	9.493 \| good	0.334 \| good
2025-07-31T13:00:00.000Z	52 \| moderate	10.146 \| good	39.717 \| good	22.419 \| good	0.252 \| good	8.207 \| good	0.409 \| good
2025-07-31T14:00:00.000Z	54 \| moderate	11.081 \| good	50.679 \| good	26.78 \| good	0.25 \| good	12.98 \| good	0.463 \| good
2025-07-31T15:00:00.000Z	58 \| moderate	13.115 \| fine	52.121 \| good	32.21 \| good	0.227 \| good	8.323 \| good	0.419 \| good
2025-07-31T16:00:00.000Z	58 \| moderate	13.159 \| fine	48.124 \| good	38.159 \| good	0.407 \| good	10.189 \| good	0.379 \| good
2025-07-31T17:00:00.000Z	60 \| moderate	13.815 \| fine	70.055 \| fine	39.808 \| good	0.578 \| good	8.566 \| good	0.349 \| good
2025-07-31T18:00:00.000Z	54 \| moderate	11.047 \| good	45.6 \| good	33.052 \| good	0.249 \| good	8.349 \| good	0.325 \| good
2025-07-31T19:00:00.000Z	49 \| good	9.3 \| good	37.269 \| good	35.624 \| good	0.621 \| good	6.678 \| good	0.353 \| good
2025-07-31T19:00:00.000Z	55 \| moderate	11.055 \| good	63.971 \| fine	38.521 \| good	0.632 \| good	6.294 \| good	0.354 \| good
2025-07-23T15:00:00.000Z	44 \| good	8.267 \| good	36.488 \| good	43.596 \| good	1.343 \| good	2.291 \| good	0.173 \| good
2025-07-23T16:00:00.000Z	44 \| good	8.455 \| good	37.124 \| good	46.783 \| good	1.344 \| good	2.016 \| good	0.173 \| good
2025-07-23T17:00:00.000Z	49 \| good	9.139 \| good	40.192 \| good	49.837 \| good	1.346 \| good	1.741 \| good	0.172 \| good
2025-07-23T18:00:00.000Z	52 \| moderate	9.941 \| good	44.079 \| good	52.752 \| good	1.348 \| good	1.466 \| good	0.172 \| good
2025-07-23T19:00:00.000Z	52 \| moderate	10.378 \| good	45.949 \| good	54.576 \| good	1.247 \| good	1.661 \| good	0.173 \| good
2025-07-23T20:00:00.000Z	54 \| moderate	10.546 \| good	46.62 \| good	54.225 \| good	1.145 \| good	1.856 \| good	0.174 \| good
2025-07-23T21:00:00.000Z	54 \| moderate	11.086 \| good	49.108 \| good	49.264 \| good	1.044 \| good	2.052 \| good	0.175 \| good
2025-07-23T22:00:00.000Z	54 \| moderate	10.541 \| good	46.71 \| good	44.619 \| good	1.046 \| good	3.617 \| good	0.186 \| good
2025-07-23T23:00:00.000Z	52 \| moderate	9.919 \| good	44.283 \| good	40.588 \| good	1.047 \| good	5.182 \| good	0.198 \| good
2025-07-24T00:00:00.000Z	49 \| good	8.884 \| good	39.45 \| good	34.396 \| good	1.049 \| good	6.747 \| good	0.209 \| good
2025-07-24T01:00:00.000Z	44 \| good	7.518 \| good	33.039 \| good	28.918 \| good	1.001 \| good	6.359 \| good	0.196 \| good
2025-07-24T02:00:00.000Z	38 \| good	7.087 \| good	31.261 \| good	25.155 \| good	0.953 \| good	5.971 \| good	0.183 \| good
2025-07-24T03:00:00.000Z	38 \| good	6.871 \| good	30.73 \| good	24.384 \| good	0.905 \| good	5.582 \| good	0.17 \| good
2025-07-24T04:00:00.000Z	33 \| good	6.171 \| good	27.261 \| good	23.436 \| good	0.851 \| good	5.278 \| good	0.165 \| good
2025-07-24T05:00:00.000Z	27 \| good	5.443 \| good	23.096 \| good	22.094 \| good	0.797 \| good	4.974 \| good	0.16 \| good
2025-07-24T06:00:00.000Z	27 \| good	5.309 \| good	22.904 \| good	21.132 \| good	0.743 \| good	4.67 \| good	0.155 \| good
2025-07-24T07:00:00.000Z	27 \| good	5.137 \| good	22.147 \| good	20.825 \| good	0.793 \| good	4.565 \| good	0.153 \| good
2025-07-24T08:00:00.000Z	27 \| good	5.028 \| good	21.72 \| good	19.696 \| good	0.843 \| good	4.46 \| good	0.152 \| good
2025-07-24T09:00:00.000Z	33 \| good	5.679 \| good	24.341 \| good	17.277 \| good	0.893 \| good	4.355 \| good	0.151 \| good
2025-07-24T10:00:00.000Z	33 \| good	5.588 \| good	24.114 \| good	15.264 \| good	0.984 \| good	4.474 \| good	0.158 \| good
2025-07-24T11:00:00.000Z	33 \| good	6.335 \| good	28.334 \| good	18.141 \| good	1.074 \| good	4.593 \| good	0.165 \| good
2025-07-24T12:00:00.000Z	33 \| good	6.213 \| good	27.309 \| good	25.152 \| good	1.164 \| good	4.712 \| good	0.172 \| good
2025-07-24T13:00:00.000Z	33 \| good	6.467 \| good	28.981 \| good	32.16 \| good	1.275 \| good	3.813 \| good	0.17 \| good
2025-07-24T14:00:00.000Z	39 \| good	7.158 \| good	31.563 \| good	41.796 \| good	1.385 \| good	2.914 \| good	0.169 \| good
2025-07-24T15:00:00.000Z	43 \| good	7.358 \| good	32.278 \| good	45.98 \| good	1.496 \| good	2.015 \| good	0.168 \| good
2025-07-24T16:00:00.000Z	44 \| good	8.105 \| good	35.424 \| good	46.886 \| good	1.366 \| good	1.744 \| good	0.17 \| good
2025-07-24T17:00:00.000Z	49 \| good	9.177 \| good	41.099 \| good	46.684 \| good	1.235 \| good	1.473 \| good	0.172 \| good
2025-07-24T18:00:00.000Z	52 \| moderate	9.707 \| good	43.282 \| good	45.644 \| good	1.105 \| good	1.202 \| good	0.175 \| good
2025-07-24T19:00:00.000Z	52 \| moderate	9.925 \| good	44.089 \| good	42.273 \| good	1.07 \| good	1.335 \| good	0.176 \| good
2025-07-24T20:00:00.000Z	52 \| moderate	9.884 \| good	43.943 \| good	40.226 \| good	1.034 \| good	1.468 \| good	0.178 \| good
2025-07-24T21:00:00.000Z	52 \| moderate	9.537 \| good	42.633 \| good	39.259 \| good	0.999 \| good	1.601 \| good	0.18 \| good
2025-07-24T22:00:00.000Z	52 \| moderate	9.73 \| good	43.238 \| good	37.563 \| good	1.01 \| good	2.678 \| good	0.185 \| good
2025-07-24T23:00:00.000Z	49 \| good	9.288 \| good	41.524 \| good	33.571 \| good	1.021 \| good	3.755 \| good	0.191 \| good
2025-07-25T00:00:00.000Z	44 \| good	8.39 \| good	36.8 \| good	26.685 \| good	1.031 \| good	4.833 \| good	0.197 \| good
2025-07-25T01:00:00.000Z	38 \| good	7.289 \| good	31.868 \| good	24.263 \| good	1.054 \| good	4.979 \| good	0.193 \| good
2025-07-25T02:00:00.000Z	44 \| good	7.637 \| good	33.96 \| good	23.613 \| good	1.077 \| good	5.125 \| good	0.188 \| good
2025-07-25T03:00:00.000Z	38 \| good	7.464 \| good	32.797 \| good	23.784 \| good	1.1 \| good	5.271 \| good	0.184 \| good
2025-07-25T04:00:00.000Z	33 \| good	6.34 \| good	28.421 \| good	22.991 \| good	1.047 \| good	4.976 \| good	0.182 \| good
2025-07-25T05:00:00.000Z	27 \| good	5.052 \| good	21.671 \| good	21.657 \| good	0.995 \| good	4.682 \| good	0.181 \| good
2025-07-25T06:00:00.000Z	22 \| good	4.411 \| good	19.068 \| good	22.081 \| good	0.942 \| good	4.388 \| good	0.18 \| good
2025-07-25T07:00:00.000Z	22 \| good	4.15 \| good	18.208 \| good	22.939 \| good	1.078 \| good	4.418 \| good	0.187 \| good
2025-07-25T08:00:00.000Z	27 \| good	4.865 \| good	21.027 \| good	23.823 \| good	1.214 \| good	4.448 \| good	0.195 \| good
2025-07-25T09:00:00.000Z	33 \| good	6.178 \| good	27.317 \| good	23.553 \| good	1.349 \| good	4.478 \| good	0.202 \| good
2025-07-25T10:00:00.000Z	27 \| good	5.113 \| good	22.087 \| good	20.457 \| good	1.432 \| good	4.398 \| good	0.21 \| good
2025-07-25T11:00:00.000Z	27 \| good	5.429 \| good	23.144 \| good	21.746 \| good	1.514 \| good	4.319 \| good	0.219 \| good
2025-07-25T12:00:00.000Z	33 \| good	6.422 \| good	28.538 \| good	25.291 \| good	1.597 \| good	4.239 \| good	0.227 \| good
2025-07-25T13:00:00.000Z	44 \| good	8.192 \| good	35.983 \| good	30.908 \| good	1.8 \| good	3.604 \| good	0.231 \| good
2025-07-25T14:00:00.000Z	52 \| moderate	10.311 \| good	45.942 \| good	37.376 \| good	2.002 \| good	2.968 \| good	0.235 \| good

Live air quality index in Willistown, Pennsylvania today

Major air pollutants in Willistown, Pennsylvania

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Willistown, Pennsylvania air quality map: Stay updated on AQI near you

Air quality in nearby cities

Westtown, Pennsylvania

East Goshen, Pennsylvania

Easttown, Pennsylvania

West Goshen, Pennsylvania

West Chester, Pennsylvania

Concord Township, Pennsylvania

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Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the PM_2.5 level in Willistown, Pennsylvania at the moment?

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What is the sulfur dioxide (SO₂) level in Willistown, Pennsylvania at the moment?

What is the ozone (O₃) level in Willistown, Pennsylvania at the moment?

What is the nitrogen dioxide (NO₂) level in Willistown, Pennsylvania at the moment?