What is the current concentration of PM10 in Chillicothe, Ohio?

The current PM10 concentration at Chillicothe, Ohio is 25.705 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Chillicothe, Ohio?

The current sulfur dioxide (SO2) concentration at Chillicothe, Ohio is 1.733 ppb.

What is the current concentration of ozone (O3) in Chillicothe, Ohio?

The current ozone (O3) concentration at Chillicothe, Ohio is 41.727 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Chillicothe, Ohio?

The current nitrogen dioxide (NO2) concentration at Chillicothe, Ohio is 10.686 ppb.

Chillicothe, Ohio live air quality index now

Q: What is the current concentration of PM2.5 in Chillicothe, Ohio?

The current PM2.5 concentration at Chillicothe, Ohio is 6.026 μg/m3.

Stay updated with real-time air quality in Chillicothe, Ohio 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

Chillicothe, Ohio

Last updated: ... (Local time)

Major air pollutants in Chillicothe, Ohio

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

6.03 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

25.70 μg/m³

155

255

425

605+

Ozone (O₃)

41.73 ppb

201

201+

Sulfur Dioxide (SO₂)

1.73 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

10.69 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.27 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Chillicothe, Ohio

Get Live Pollen Counts

Chillicothe, Ohio

Scroll To Air Quality Map

Track live Chillicothe, Ohio air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-20T21:00:00.000Z	43 \| good	5.316 \| good	25.279 \| good	46.127 \| good	1.064 \| good	10.433 \| good	0.244 \| good
2026-10-20T22:00:00.000Z	42 \| good	4.332 \| good	19.385 \| good	45.161 \| good	1.596 \| good	9.145 \| good	0.245 \| good
2026-10-20T23:00:00.000Z	40 \| good	4.254 \| good	21.271 \| good	43.135 \| good	1.642 \| good	5.871 \| good	0.293 \| good
2026-10-21T00:00:00.000Z	36 \| good	4.513 \| good	27.954 \| good	39.473 \| good	1.441 \| good	6.471 \| good	0.449 \| good
2026-10-21T01:00:00.000Z	32 \| good	4.169 \| good	18.648 \| good	35.196 \| good	1.432 \| good	7.089 \| good	0.531 \| good
2026-10-21T02:00:00.000Z	27 \| good	4.958 \| good	22.042 \| good	28.809 \| good	1.2 \| good	14.434 \| good	0.502 \| good
2026-10-21T03:00:00.000Z	56 \| moderate	12.193 \| fine	54.615 \| good	17.989 \| good	1.21 \| good	8.07 \| good	0.219 \| good
2026-10-21T04:00:00.000Z	31 \| good	5.253 \| good	26.918 \| good	32.888 \| good	1.193 \| good	14.788 \| good	0.433 \| good
2026-10-21T05:00:00.000Z	33 \| good	6.486 \| good	27.623 \| good	27.199 \| good	1.319 \| good	15.136 \| good	0.426 \| good
2026-10-21T06:00:00.000Z	38 \| good	7.413 \| good	34.969 \| good	23.489 \| good	1.173 \| good	14.96 \| good	0.402 \| good
2026-10-21T07:00:00.000Z	52 \| moderate	10.419 \| good	41.687 \| good	20.461 \| good	1.167 \| good	14.642 \| good	0.413 \| good
2026-10-21T08:00:00.000Z	49 \| good	9.043 \| good	32.021 \| good	24.405 \| good	1.102 \| good	15.569 \| good	0.368 \| good
2026-10-21T09:00:00.000Z	52 \| moderate	10.175 \| good	43.036 \| good	22.73 \| good	1.153 \| good	14.892 \| good	0.379 \| good
2026-10-21T10:00:00.000Z	56 \| moderate	11.726 \| good	44.138 \| good	18.706 \| good	1.275 \| good	13.238 \| good	0.477 \| good
2026-10-21T11:00:00.000Z	54 \| moderate	11.103 \| good	44.1 \| good	10.209 \| good	1.27 \| good	13.515 \| good	0.472 \| good
2026-10-21T12:00:00.000Z	49 \| good	8.847 \| good	39.418 \| good	15.692 \| good	1.111 \| good	10.045 \| good	0.692 \| good
2026-10-21T13:00:00.000Z	54 \| moderate	11.14 \| good	34.776 \| good	12.594 \| good	0.961 \| good	11.651 \| good	0.778 \| good
2026-10-21T14:00:00.000Z	49 \| good	8.994 \| good	34.857 \| good	13.094 \| good	1.107 \| good	13.829 \| good	0.682 \| good
2026-10-21T15:00:00.000Z	52 \| moderate	10.127 \| good	39.604 \| good	15.778 \| good	0.996 \| good	12.574 \| good	0.578 \| good
2026-10-21T16:00:00.000Z	52 \| moderate	9.915 \| good	48.87 \| good	17.681 \| good	1.032 \| good	8.438 \| good	0.527 \| good
2026-10-21T17:00:00.000Z	60 \| moderate	13.543 \| fine	55.343 \| fine	30.922 \| good	4.813 \| good	14.066 \| good	0.497 \| good
2026-10-21T18:00:00.000Z	58 \| moderate	13.275 \| fine	37.601 \| good	37.684 \| good	3.811 \| good	12.793 \| good	0.352 \| good
2026-10-21T19:00:00.000Z	56 \| moderate	11.657 \| good	30.961 \| good	42.807 \| good	3.703 \| good	11.585 \| good	0.279 \| good
2026-10-21T20:00:00.000Z	52 \| moderate	9.938 \| good	29.689 \| good	50.59 \| good	1.145 \| good	10.635 \| good	0.286 \| good
2026-10-21T21:00:00.000Z	47 \| good	7.842 \| good	45.223 \| good	50.896 \| good	1.027 \| good	9.75 \| good	0.3 \| good
2026-10-21T22:00:00.000Z	44 \| good	7.105 \| good	28.381 \| good	47.386 \| good	1.116 \| good	10.116 \| good	0.318 \| good
2026-10-21T23:00:00.000Z	40 \| good	7.353 \| good	27.31 \| good	43.4 \| good	0.995 \| good	6.64 \| good	0.357 \| good
2026-10-22T00:00:00.000Z	38 \| good	7.478 \| good	30.862 \| good	40.471 \| good	1.008 \| good	14.046 \| good	0.362 \| good
2026-10-22T01:00:00.000Z	38 \| good	6.976 \| good	30.707 \| good	34.933 \| good	1.002 \| good	10.566 \| good	0.44 \| good
2026-10-22T02:00:00.000Z	38 \| good	7.416 \| good	35.209 \| good	36.608 \| good	1.294 \| good	10.352 \| good	0.441 \| good
2026-10-22T03:00:00.000Z	79 \| moderate	23.516 \| fine	102.339 \| fine	6.914 \| good	0.82 \| good	8.394 \| good	0.244 \| good
2026-10-22T04:00:00.000Z	64 \| moderate	16.421 \| fine	49.542 \| good	19.397 \| good	1.29 \| good	8.496 \| good	0.43 \| good
2026-10-22T05:00:00.000Z	67 \| moderate	18.043 \| fine	51.562 \| good	16.373 \| good	1.32 \| good	8.624 \| good	0.465 \| good
2026-10-22T06:00:00.000Z	60 \| moderate	13.647 \| fine	36.917 \| good	6.451 \| good	1.142 \| good	14.321 \| good	0.415 \| good
2026-10-22T07:00:00.000Z	69 \| moderate	18.773 \| fine	49.397 \| good	6.021 \| good	1.145 \| good	14.543 \| good	0.415 \| good
2026-10-22T08:00:00.000Z	73 \| moderate	20.622 \| fine	50.999 \| good	7.001 \| good	1.145 \| good	12.233 \| good	0.361 \| good
2026-10-22T09:00:00.000Z	66 \| moderate	16.701 \| fine	63.26 \| fine	7.078 \| good	0.982 \| good	12.349 \| good	0.352 \| good
2026-10-22T10:00:00.000Z	69 \| moderate	13.267 \| fine	90.541 \| fine	6.711 \| good	1.117 \| good	10.278 \| good	0.358 \| good
2026-10-22T11:00:00.000Z	62 \| moderate	14.559 \| fine	74.714 \| fine	2.57 \| good	1.142 \| good	11.513 \| good	0.508 \| good
2026-10-22T12:00:00.000Z	52 \| moderate	10.002 \| good	43.73 \| good	4.844 \| good	1.127 \| good	13.845 \| good	0.618 \| good
2026-10-22T13:00:00.000Z	49 \| good	8.727 \| good	37.331 \| good	5.429 \| good	1.42 \| good	13.161 \| good	0.697 \| good
2026-10-22T14:00:00.000Z	60 \| moderate	13.739 \| fine	42.037 \| good	7.541 \| good	1.511 \| good	16.002 \| good	0.71 \| good
2026-10-22T15:00:00.000Z	49 \| good	8.528 \| good	22.98 \| good	13.255 \| good	1.422 \| good	13.412 \| good	0.519 \| good
2026-10-22T16:00:00.000Z	44 \| good	8.158 \| good	27.427 \| good	21.55 \| good	0.924 \| good	14.989 \| good	0.407 \| good
2026-10-22T17:00:00.000Z	44 \| good	7.549 \| good	32.528 \| good	27.68 \| good	1.452 \| good	12.543 \| good	0.378 \| good
2026-10-22T18:00:00.000Z	38 \| good	6.953 \| good	29.124 \| good	32.597 \| good	1.262 \| good	15.088 \| good	0.247 \| good
2026-10-22T19:00:00.000Z	35 \| good	6.154 \| good	27.561 \| good	38.404 \| good	1.551 \| good	10.811 \| good	0.256 \| good
2026-10-22T20:00:00.000Z	39 \| good	6.026 \| good	25.705 \| good	41.727 \| good	1.733 \| good	10.686 \| good	0.267 \| good
2026-10-22T20:00:00.000Z	39 \| good	6.026 \| good	25.705 \| good	41.727 \| good	1.733 \| good	10.686 \| good	0.267 \| good
2026-10-22T21:00:00.000Z	44 \| good	5.881 \| good	25.944 \| good	46.599 \| good	1.237 \| good	1.25 \| good	0.161 \| good
2026-10-22T22:00:00.000Z	38 \| good	5.83 \| good	25.806 \| good	40.61 \| good	1.255 \| good	1.993 \| good	0.171 \| good
2026-10-22T23:00:00.000Z	38 \| good	7.083 \| good	31.407 \| good	31.775 \| good	1.217 \| good	3.815 \| good	0.192 \| good
2026-10-23T00:00:00.000Z	49 \| good	9.154 \| good	40.69 \| good	23.651 \| good	1.23 \| good	5.059 \| good	0.207 \| good
2026-10-23T01:00:00.000Z	52 \| moderate	10.238 \| good	45.08 \| good	18.777 \| good	1.277 \| good	5.696 \| good	0.214 \| good
2026-10-23T02:00:00.000Z	54 \| moderate	11.162 \| good	49.248 \| good	15.892 \| good	1.311 \| good	6.117 \| good	0.22 \| good
2026-10-23T03:00:00.000Z	56 \| moderate	11.945 \| good	53.655 \| good	14.402 \| good	1.324 \| good	6.419 \| good	0.224 \| good
2026-10-23T04:00:00.000Z	56 \| moderate	12.13 \| fine	54.406 \| good	14.524 \| good	1.326 \| good	6.534 \| good	0.226 \| good
2026-10-23T05:00:00.000Z	56 \| moderate	12.219 \| fine	54.52 \| good	14.468 \| good	1.325 \| good	6.391 \| good	0.227 \| good
2026-10-23T06:00:00.000Z	56 \| moderate	12.346 \| fine	55.816 \| fine	13.478 \| good	1.322 \| good	6.263 \| good	0.227 \| good
2026-10-23T07:00:00.000Z	56 \| moderate	12.444 \| fine	55.904 \| fine	12.756 \| good	1.317 \| good	6.246 \| good	0.227 \| good
2026-10-23T08:00:00.000Z	56 \| moderate	12.215 \| fine	54.516 \| good	11.563 \| good	1.315 \| good	6.27 \| good	0.229 \| good
2026-10-23T09:00:00.000Z	56 \| moderate	12.392 \| fine	56.305 \| fine	10.653 \| good	1.315 \| good	6.27 \| good	0.231 \| good
2026-10-23T10:00:00.000Z	58 \| moderate	12.692 \| fine	56.513 \| fine	9.746 \| good	1.319 \| good	6.26 \| good	0.233 \| good
2026-10-23T11:00:00.000Z	60 \| moderate	13.832 \| fine	62.212 \| fine	9.748 \| good	1.322 \| good	6.324 \| good	0.236 \| good
2026-10-23T12:00:00.000Z	62 \| moderate	14.883 \| fine	66.212 \| fine	10.359 \| good	1.323 \| good	6.997 \| good	0.245 \| good
2026-10-23T13:00:00.000Z	60 \| moderate	14.497 \| fine	64.596 \| fine	15.439 \| good	1.269 \| good	6.261 \| good	0.259 \| good
2026-10-23T14:00:00.000Z	64 \| moderate	15.835 \| fine	70.792 \| fine	23.625 \| good	1.377 \| good	4.755 \| good	0.252 \| good
2026-10-23T15:00:00.000Z	60 \| moderate	14.344 \| fine	63.694 \| fine	32.904 \| good	1.634 \| good	3.492 \| good	0.233 \| good
2026-10-23T16:00:00.000Z	56 \| moderate	11.628 \| good	51.281 \| good	39.109 \| good	1.711 \| good	2.185 \| good	0.207 \| good
2026-10-23T17:00:00.000Z	52 \| moderate	9.829 \| good	43.737 \| good	43.544 \| good	1.339 \| good	1.168 \| good	0.187 \| good
2026-10-23T18:00:00.000Z	49 \| good	9.01 \| good	40.351 \| good	44.921 \| good	1.117 \| good	0.858 \| good	0.179 \| good
2026-10-23T19:00:00.000Z	49 \| good	8.603 \| good	37.758 \| good	45.437 \| good	1.03 \| good	0.787 \| good	0.177 \| good
2026-10-23T20:00:00.000Z	49 \| good	8.876 \| good	39.744 \| good	45.868 \| good	0.981 \| good	0.796 \| good	0.176 \| good
2026-10-23T21:00:00.000Z	49 \| good	9.315 \| good	41.818 \| good	44.967 \| good	0.95 \| good	0.896 \| good	0.176 \| good
2026-10-23T22:00:00.000Z	52 \| moderate	9.873 \| good	43.765 \| good	38.78 \| good	0.908 \| good	1.511 \| good	0.183 \| good
2026-10-23T23:00:00.000Z	54 \| moderate	10.883 \| good	48.215 \| good	30.456 \| good	0.849 \| good	3.358 \| good	0.203 \| good
2026-10-24T00:00:00.000Z	54 \| moderate	11.436 \| good	50.791 \| good	23.721 \| good	0.824 \| good	4.835 \| good	0.219 \| good
2026-10-24T01:00:00.000Z	54 \| moderate	11.48 \| good	50.949 \| good	20.72 \| good	0.829 \| good	5.136 \| good	0.22 \| good
2026-10-24T02:00:00.000Z	56 \| moderate	11.898 \| good	52.532 \| good	20.459 \| good	0.842 \| good	5.096 \| good	0.22 \| good
2026-10-24T03:00:00.000Z	56 \| moderate	12.066 \| good	53.984 \| good	20.403 \| good	0.859 \| good	4.865 \| good	0.217 \| good
2026-10-24T04:00:00.000Z	56 \| moderate	12.264 \| fine	54.834 \| good	19.919 \| good	0.879 \| good	4.464 \| good	0.214 \| good
2026-10-24T05:00:00.000Z	56 \| moderate	12.149 \| fine	54.586 \| good	19.143 \| good	0.894 \| good	4.071 \| good	0.21 \| good
2026-10-24T06:00:00.000Z	56 \| moderate	12.259 \| fine	54.85 \| good	17.854 \| good	0.903 \| good	3.951 \| good	0.207 \| good
2026-10-24T07:00:00.000Z	56 \| moderate	12.145 \| fine	54.674 \| good	16.279 \| good	0.895 \| good	4.068 \| good	0.206 \| good
2026-10-24T08:00:00.000Z	56 \| moderate	11.752 \| good	51.842 \| good	14.444 \| good	0.867 \| good	4.248 \| good	0.206 \| good
2026-10-24T09:00:00.000Z	56 \| moderate	11.894 \| good	53.453 \| good	13.158 \| good	0.837 \| good	4.401 \| good	0.206 \| good
2026-10-24T10:00:00.000Z	54 \| moderate	11.276 \| good	49.987 \| good	12.681 \| good	0.805 \| good	4.58 \| good	0.207 \| good
2026-10-24T11:00:00.000Z	54 \| moderate	11.305 \| good	49.838 \| good	12.175 \| good	0.77 \| good	4.829 \| good	0.208 \| good
2026-10-24T12:00:00.000Z	54 \| moderate	11.178 \| good	49.64 \| good	11.862 \| good	0.742 \| good	5.389 \| good	0.213 \| good
2026-10-24T13:00:00.000Z	54 \| moderate	11.487 \| good	50.754 \| good	14.593 \| good	0.681 \| good	4.749 \| good	0.22 \| good
2026-10-24T14:00:00.000Z	54 \| moderate	11.375 \| good	50.697 \| good	21.373 \| good	0.703 \| good	3.412 \| good	0.212 \| good
2026-10-24T15:00:00.000Z	52 \| moderate	10.217 \| good	45.037 \| good	29.548 \| good	0.789 \| good	2.423 \| good	0.2 \| good
2026-10-24T16:00:00.000Z	52 \| moderate	9.644 \| good	42.829 \| good	36.586 \| good	1.015 \| good	1.544 \| good	0.185 \| good
2026-10-24T17:00:00.000Z	49 \| good	8.997 \| good	40.478 \| good	41.872 \| good	1.046 \| good	1.004 \| good	0.174 \| good
2026-10-24T18:00:00.000Z	44 \| good	8.45 \| good	36.849 \| good	44.673 \| good	0.987 \| good	0.777 \| good	0.167 \| good
2026-10-24T19:00:00.000Z	44 \| good	8.018 \| good	35.108 \| good	46.064 \| good	0.924 \| good	0.688 \| good	0.162 \| good
2026-10-24T20:00:00.000Z	43 \| good	7.497 \| good	32.862 \| good	46.399 \| good	0.882 \| good	0.682 \| good	0.16 \| good

Chillicothe

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Chillicothe, Ohio air quality map: Track AQI near you

0.25ppm

How accurate is Ohio, USA air quality data?

Air quality data and pollutant measurements for Ohio, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.

Source: Ambee Data Sources

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Frequently asked questions

How often is the air quality data for Chillicothe, Ohio updated?

The air quality for Chillicothe, Ohio is updated every hour.

When was the worst air quality at Chillicothe, Ohio in the last 24 hrs?

The worst air quality in Chillicothe, Ohio in the last 24 hours was observed at 03:00:00 on 2026-10-22.

When was the best air quality at Chillicothe, Ohio in the last 24 hrs?

In the last 24 hrs, the best air quality in Chillicothe, Ohio was observed at 07:00:00 on 2026-10-22.

What is the current air quality in Chillicothe, Ohio?

The current air quality in Chillicothe, Ohio is 39, categorized as Good based on real-time data.

What pollutant is the most common in Chillicothe, Ohio?

The most common pollutant in Chillicothe, Ohio is O3.

What should I do if the air quality in Chillicothe, Ohio is poor?

If the air quality in Chillicothe, Ohio is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Chillicothe, Ohio?

The current PM_2.5 concentration at Chillicothe, Ohio is 6.026 μg/m³.

What is the current concentration of PM₁₀ in Chillicothe, Ohio?

The current PM₁₀ concentration at Chillicothe, Ohio is 25.705 μg/m³.

What is the current concentration of carbon monoxide (CO) in Chillicothe, Ohio?

The current carbon monoxide (CO) concentration at Chillicothe, Ohio is 0.267 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Chillicothe, Ohio?

The current sulfur dioxide (SO₂) concentration at Chillicothe, Ohio is 1.733 ppb.

What is the current concentration of ozone (O₃) in Chillicothe, Ohio?

The current ozone (O₃) concentration at Chillicothe, Ohio is 41.727 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Chillicothe, Ohio?

The current nitrogen dioxide (NO₂) concentration at Chillicothe, Ohio is 10.686 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-20T21:00:00.000Z	43 \| good	5.316 \| good	25.279 \| good	46.127 \| good	1.064 \| good	10.433 \| good	0.244 \| good
2026-10-20T22:00:00.000Z	42 \| good	4.332 \| good	19.385 \| good	45.161 \| good	1.596 \| good	9.145 \| good	0.245 \| good
2026-10-20T23:00:00.000Z	40 \| good	4.254 \| good	21.271 \| good	43.135 \| good	1.642 \| good	5.871 \| good	0.293 \| good
2026-10-21T00:00:00.000Z	36 \| good	4.513 \| good	27.954 \| good	39.473 \| good	1.441 \| good	6.471 \| good	0.449 \| good
2026-10-21T01:00:00.000Z	32 \| good	4.169 \| good	18.648 \| good	35.196 \| good	1.432 \| good	7.089 \| good	0.531 \| good
2026-10-21T02:00:00.000Z	27 \| good	4.958 \| good	22.042 \| good	28.809 \| good	1.2 \| good	14.434 \| good	0.502 \| good
2026-10-21T03:00:00.000Z	56 \| moderate	12.193 \| fine	54.615 \| good	17.989 \| good	1.21 \| good	8.07 \| good	0.219 \| good
2026-10-21T04:00:00.000Z	31 \| good	5.253 \| good	26.918 \| good	32.888 \| good	1.193 \| good	14.788 \| good	0.433 \| good
2026-10-21T05:00:00.000Z	33 \| good	6.486 \| good	27.623 \| good	27.199 \| good	1.319 \| good	15.136 \| good	0.426 \| good
2026-10-21T06:00:00.000Z	38 \| good	7.413 \| good	34.969 \| good	23.489 \| good	1.173 \| good	14.96 \| good	0.402 \| good
2026-10-21T07:00:00.000Z	52 \| moderate	10.419 \| good	41.687 \| good	20.461 \| good	1.167 \| good	14.642 \| good	0.413 \| good
2026-10-21T08:00:00.000Z	49 \| good	9.043 \| good	32.021 \| good	24.405 \| good	1.102 \| good	15.569 \| good	0.368 \| good
2026-10-21T09:00:00.000Z	52 \| moderate	10.175 \| good	43.036 \| good	22.73 \| good	1.153 \| good	14.892 \| good	0.379 \| good
2026-10-21T10:00:00.000Z	56 \| moderate	11.726 \| good	44.138 \| good	18.706 \| good	1.275 \| good	13.238 \| good	0.477 \| good
2026-10-21T11:00:00.000Z	54 \| moderate	11.103 \| good	44.1 \| good	10.209 \| good	1.27 \| good	13.515 \| good	0.472 \| good
2026-10-21T12:00:00.000Z	49 \| good	8.847 \| good	39.418 \| good	15.692 \| good	1.111 \| good	10.045 \| good	0.692 \| good
2026-10-21T13:00:00.000Z	54 \| moderate	11.14 \| good	34.776 \| good	12.594 \| good	0.961 \| good	11.651 \| good	0.778 \| good
2026-10-21T14:00:00.000Z	49 \| good	8.994 \| good	34.857 \| good	13.094 \| good	1.107 \| good	13.829 \| good	0.682 \| good
2026-10-21T15:00:00.000Z	52 \| moderate	10.127 \| good	39.604 \| good	15.778 \| good	0.996 \| good	12.574 \| good	0.578 \| good
2026-10-21T16:00:00.000Z	52 \| moderate	9.915 \| good	48.87 \| good	17.681 \| good	1.032 \| good	8.438 \| good	0.527 \| good
2026-10-21T17:00:00.000Z	60 \| moderate	13.543 \| fine	55.343 \| fine	30.922 \| good	4.813 \| good	14.066 \| good	0.497 \| good
2026-10-21T18:00:00.000Z	58 \| moderate	13.275 \| fine	37.601 \| good	37.684 \| good	3.811 \| good	12.793 \| good	0.352 \| good
2026-10-21T19:00:00.000Z	56 \| moderate	11.657 \| good	30.961 \| good	42.807 \| good	3.703 \| good	11.585 \| good	0.279 \| good
2026-10-21T20:00:00.000Z	52 \| moderate	9.938 \| good	29.689 \| good	50.59 \| good	1.145 \| good	10.635 \| good	0.286 \| good
2026-10-21T21:00:00.000Z	47 \| good	7.842 \| good	45.223 \| good	50.896 \| good	1.027 \| good	9.75 \| good	0.3 \| good
2026-10-21T22:00:00.000Z	44 \| good	7.105 \| good	28.381 \| good	47.386 \| good	1.116 \| good	10.116 \| good	0.318 \| good
2026-10-21T23:00:00.000Z	40 \| good	7.353 \| good	27.31 \| good	43.4 \| good	0.995 \| good	6.64 \| good	0.357 \| good
2026-10-22T00:00:00.000Z	38 \| good	7.478 \| good	30.862 \| good	40.471 \| good	1.008 \| good	14.046 \| good	0.362 \| good
2026-10-22T01:00:00.000Z	38 \| good	6.976 \| good	30.707 \| good	34.933 \| good	1.002 \| good	10.566 \| good	0.44 \| good
2026-10-22T02:00:00.000Z	38 \| good	7.416 \| good	35.209 \| good	36.608 \| good	1.294 \| good	10.352 \| good	0.441 \| good
2026-10-22T03:00:00.000Z	79 \| moderate	23.516 \| fine	102.339 \| fine	6.914 \| good	0.82 \| good	8.394 \| good	0.244 \| good
2026-10-22T04:00:00.000Z	64 \| moderate	16.421 \| fine	49.542 \| good	19.397 \| good	1.29 \| good	8.496 \| good	0.43 \| good
2026-10-22T05:00:00.000Z	67 \| moderate	18.043 \| fine	51.562 \| good	16.373 \| good	1.32 \| good	8.624 \| good	0.465 \| good
2026-10-22T06:00:00.000Z	60 \| moderate	13.647 \| fine	36.917 \| good	6.451 \| good	1.142 \| good	14.321 \| good	0.415 \| good
2026-10-22T07:00:00.000Z	69 \| moderate	18.773 \| fine	49.397 \| good	6.021 \| good	1.145 \| good	14.543 \| good	0.415 \| good
2026-10-22T08:00:00.000Z	73 \| moderate	20.622 \| fine	50.999 \| good	7.001 \| good	1.145 \| good	12.233 \| good	0.361 \| good
2026-10-22T09:00:00.000Z	66 \| moderate	16.701 \| fine	63.26 \| fine	7.078 \| good	0.982 \| good	12.349 \| good	0.352 \| good
2026-10-22T10:00:00.000Z	69 \| moderate	13.267 \| fine	90.541 \| fine	6.711 \| good	1.117 \| good	10.278 \| good	0.358 \| good
2026-10-22T11:00:00.000Z	62 \| moderate	14.559 \| fine	74.714 \| fine	2.57 \| good	1.142 \| good	11.513 \| good	0.508 \| good
2026-10-22T12:00:00.000Z	52 \| moderate	10.002 \| good	43.73 \| good	4.844 \| good	1.127 \| good	13.845 \| good	0.618 \| good
2026-10-22T13:00:00.000Z	49 \| good	8.727 \| good	37.331 \| good	5.429 \| good	1.42 \| good	13.161 \| good	0.697 \| good
2026-10-22T14:00:00.000Z	60 \| moderate	13.739 \| fine	42.037 \| good	7.541 \| good	1.511 \| good	16.002 \| good	0.71 \| good
2026-10-22T15:00:00.000Z	49 \| good	8.528 \| good	22.98 \| good	13.255 \| good	1.422 \| good	13.412 \| good	0.519 \| good
2026-10-22T16:00:00.000Z	44 \| good	8.158 \| good	27.427 \| good	21.55 \| good	0.924 \| good	14.989 \| good	0.407 \| good
2026-10-22T17:00:00.000Z	44 \| good	7.549 \| good	32.528 \| good	27.68 \| good	1.452 \| good	12.543 \| good	0.378 \| good
2026-10-22T18:00:00.000Z	38 \| good	6.953 \| good	29.124 \| good	32.597 \| good	1.262 \| good	15.088 \| good	0.247 \| good
2026-10-22T19:00:00.000Z	35 \| good	6.154 \| good	27.561 \| good	38.404 \| good	1.551 \| good	10.811 \| good	0.256 \| good
2026-10-22T20:00:00.000Z	39 \| good	6.026 \| good	25.705 \| good	41.727 \| good	1.733 \| good	10.686 \| good	0.267 \| good
2026-10-22T20:00:00.000Z	39 \| good	6.026 \| good	25.705 \| good	41.727 \| good	1.733 \| good	10.686 \| good	0.267 \| good
2026-10-22T21:00:00.000Z	44 \| good	5.881 \| good	25.944 \| good	46.599 \| good	1.237 \| good	1.25 \| good	0.161 \| good
2026-10-22T22:00:00.000Z	38 \| good	5.83 \| good	25.806 \| good	40.61 \| good	1.255 \| good	1.993 \| good	0.171 \| good
2026-10-22T23:00:00.000Z	38 \| good	7.083 \| good	31.407 \| good	31.775 \| good	1.217 \| good	3.815 \| good	0.192 \| good
2026-10-23T00:00:00.000Z	49 \| good	9.154 \| good	40.69 \| good	23.651 \| good	1.23 \| good	5.059 \| good	0.207 \| good
2026-10-23T01:00:00.000Z	52 \| moderate	10.238 \| good	45.08 \| good	18.777 \| good	1.277 \| good	5.696 \| good	0.214 \| good
2026-10-23T02:00:00.000Z	54 \| moderate	11.162 \| good	49.248 \| good	15.892 \| good	1.311 \| good	6.117 \| good	0.22 \| good
2026-10-23T03:00:00.000Z	56 \| moderate	11.945 \| good	53.655 \| good	14.402 \| good	1.324 \| good	6.419 \| good	0.224 \| good
2026-10-23T04:00:00.000Z	56 \| moderate	12.13 \| fine	54.406 \| good	14.524 \| good	1.326 \| good	6.534 \| good	0.226 \| good
2026-10-23T05:00:00.000Z	56 \| moderate	12.219 \| fine	54.52 \| good	14.468 \| good	1.325 \| good	6.391 \| good	0.227 \| good
2026-10-23T06:00:00.000Z	56 \| moderate	12.346 \| fine	55.816 \| fine	13.478 \| good	1.322 \| good	6.263 \| good	0.227 \| good
2026-10-23T07:00:00.000Z	56 \| moderate	12.444 \| fine	55.904 \| fine	12.756 \| good	1.317 \| good	6.246 \| good	0.227 \| good
2026-10-23T08:00:00.000Z	56 \| moderate	12.215 \| fine	54.516 \| good	11.563 \| good	1.315 \| good	6.27 \| good	0.229 \| good
2026-10-23T09:00:00.000Z	56 \| moderate	12.392 \| fine	56.305 \| fine	10.653 \| good	1.315 \| good	6.27 \| good	0.231 \| good
2026-10-23T10:00:00.000Z	58 \| moderate	12.692 \| fine	56.513 \| fine	9.746 \| good	1.319 \| good	6.26 \| good	0.233 \| good
2026-10-23T11:00:00.000Z	60 \| moderate	13.832 \| fine	62.212 \| fine	9.748 \| good	1.322 \| good	6.324 \| good	0.236 \| good
2026-10-23T12:00:00.000Z	62 \| moderate	14.883 \| fine	66.212 \| fine	10.359 \| good	1.323 \| good	6.997 \| good	0.245 \| good
2026-10-23T13:00:00.000Z	60 \| moderate	14.497 \| fine	64.596 \| fine	15.439 \| good	1.269 \| good	6.261 \| good	0.259 \| good
2026-10-23T14:00:00.000Z	64 \| moderate	15.835 \| fine	70.792 \| fine	23.625 \| good	1.377 \| good	4.755 \| good	0.252 \| good
2026-10-23T15:00:00.000Z	60 \| moderate	14.344 \| fine	63.694 \| fine	32.904 \| good	1.634 \| good	3.492 \| good	0.233 \| good
2026-10-23T16:00:00.000Z	56 \| moderate	11.628 \| good	51.281 \| good	39.109 \| good	1.711 \| good	2.185 \| good	0.207 \| good
2026-10-23T17:00:00.000Z	52 \| moderate	9.829 \| good	43.737 \| good	43.544 \| good	1.339 \| good	1.168 \| good	0.187 \| good
2026-10-23T18:00:00.000Z	49 \| good	9.01 \| good	40.351 \| good	44.921 \| good	1.117 \| good	0.858 \| good	0.179 \| good
2026-10-23T19:00:00.000Z	49 \| good	8.603 \| good	37.758 \| good	45.437 \| good	1.03 \| good	0.787 \| good	0.177 \| good
2026-10-23T20:00:00.000Z	49 \| good	8.876 \| good	39.744 \| good	45.868 \| good	0.981 \| good	0.796 \| good	0.176 \| good
2026-10-23T21:00:00.000Z	49 \| good	9.315 \| good	41.818 \| good	44.967 \| good	0.95 \| good	0.896 \| good	0.176 \| good
2026-10-23T22:00:00.000Z	52 \| moderate	9.873 \| good	43.765 \| good	38.78 \| good	0.908 \| good	1.511 \| good	0.183 \| good
2026-10-23T23:00:00.000Z	54 \| moderate	10.883 \| good	48.215 \| good	30.456 \| good	0.849 \| good	3.358 \| good	0.203 \| good
2026-10-24T00:00:00.000Z	54 \| moderate	11.436 \| good	50.791 \| good	23.721 \| good	0.824 \| good	4.835 \| good	0.219 \| good
2026-10-24T01:00:00.000Z	54 \| moderate	11.48 \| good	50.949 \| good	20.72 \| good	0.829 \| good	5.136 \| good	0.22 \| good
2026-10-24T02:00:00.000Z	56 \| moderate	11.898 \| good	52.532 \| good	20.459 \| good	0.842 \| good	5.096 \| good	0.22 \| good
2026-10-24T03:00:00.000Z	56 \| moderate	12.066 \| good	53.984 \| good	20.403 \| good	0.859 \| good	4.865 \| good	0.217 \| good
2026-10-24T04:00:00.000Z	56 \| moderate	12.264 \| fine	54.834 \| good	19.919 \| good	0.879 \| good	4.464 \| good	0.214 \| good
2026-10-24T05:00:00.000Z	56 \| moderate	12.149 \| fine	54.586 \| good	19.143 \| good	0.894 \| good	4.071 \| good	0.21 \| good
2026-10-24T06:00:00.000Z	56 \| moderate	12.259 \| fine	54.85 \| good	17.854 \| good	0.903 \| good	3.951 \| good	0.207 \| good
2026-10-24T07:00:00.000Z	56 \| moderate	12.145 \| fine	54.674 \| good	16.279 \| good	0.895 \| good	4.068 \| good	0.206 \| good
2026-10-24T08:00:00.000Z	56 \| moderate	11.752 \| good	51.842 \| good	14.444 \| good	0.867 \| good	4.248 \| good	0.206 \| good
2026-10-24T09:00:00.000Z	56 \| moderate	11.894 \| good	53.453 \| good	13.158 \| good	0.837 \| good	4.401 \| good	0.206 \| good
2026-10-24T10:00:00.000Z	54 \| moderate	11.276 \| good	49.987 \| good	12.681 \| good	0.805 \| good	4.58 \| good	0.207 \| good
2026-10-24T11:00:00.000Z	54 \| moderate	11.305 \| good	49.838 \| good	12.175 \| good	0.77 \| good	4.829 \| good	0.208 \| good
2026-10-24T12:00:00.000Z	54 \| moderate	11.178 \| good	49.64 \| good	11.862 \| good	0.742 \| good	5.389 \| good	0.213 \| good
2026-10-24T13:00:00.000Z	54 \| moderate	11.487 \| good	50.754 \| good	14.593 \| good	0.681 \| good	4.749 \| good	0.22 \| good
2026-10-24T14:00:00.000Z	54 \| moderate	11.375 \| good	50.697 \| good	21.373 \| good	0.703 \| good	3.412 \| good	0.212 \| good
2026-10-24T15:00:00.000Z	52 \| moderate	10.217 \| good	45.037 \| good	29.548 \| good	0.789 \| good	2.423 \| good	0.2 \| good
2026-10-24T16:00:00.000Z	52 \| moderate	9.644 \| good	42.829 \| good	36.586 \| good	1.015 \| good	1.544 \| good	0.185 \| good
2026-10-24T17:00:00.000Z	49 \| good	8.997 \| good	40.478 \| good	41.872 \| good	1.046 \| good	1.004 \| good	0.174 \| good
2026-10-24T18:00:00.000Z	44 \| good	8.45 \| good	36.849 \| good	44.673 \| good	0.987 \| good	0.777 \| good	0.167 \| good
2026-10-24T19:00:00.000Z	44 \| good	8.018 \| good	35.108 \| good	46.064 \| good	0.924 \| good	0.688 \| good	0.162 \| good
2026-10-24T20:00:00.000Z	43 \| good	7.497 \| good	32.862 \| good	46.399 \| good	0.882 \| good	0.682 \| good	0.16 \| good

Chillicothe, Ohio live air quality index now

Major air pollutants in Chillicothe, Ohio

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Air quality in nearby cities

Circleville, Ohio

Washington Court House, Ohio

Lancaster, Ohio

Grove City, Ohio

Pickerington, Ohio

Portsmouth, Ohio

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Frequently asked questions

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What is the current concentration of PM2.5 in Chillicothe, Ohio?

What is the current concentration of PM10 in Chillicothe, Ohio?

What is the current concentration of carbon monoxide (CO) in Chillicothe, Ohio?

What is the current concentration of sulfur dioxide (SO2) in Chillicothe, Ohio?

What is the current concentration of ozone (O3) in Chillicothe, Ohio?

What is the current concentration of nitrogen dioxide (NO2) in Chillicothe, Ohio?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the current concentration of PM_2.5 in Chillicothe, Ohio?

What is the current concentration of PM₁₀ in Chillicothe, Ohio?

What is the current concentration of sulfur dioxide (SO₂) in Chillicothe, Ohio?

What is the current concentration of ozone (O₃) in Chillicothe, Ohio?

What is the current concentration of nitrogen dioxide (NO₂) in Chillicothe, Ohio?