What is the PM10 level in Marion, Ohio at the moment?

The PM10 concentration in Marion, Ohio is 48.854 μg/m3 at the moment.

What is the sulfur dioxide (SO2) level in Marion, Ohio at the moment?

Currently, Marion, Ohio has a sulfur dioxide (SO2) concentration of 1.413 ppb.

What is the ozone (O3) level in Marion, Ohio at the moment?

The current ozone (O3) level in Marion, Ohio at the moment is 52.298 ppm.

What is the nitrogen dioxide (NO2) level in Marion, Ohio at the moment?

Nitrogen dioxide (NO2) level in Marion, Ohio at the moment is 5.573 ppb.

Live air quality index in Marion, Ohio today

Q: What is the PM2.5 level in Marion, Ohio at the moment?

PM2.5 levels in Marion, Ohio are currently 9.101 μg/m3.

Stay updated with real-time air quality in Marion, 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

Marion, Ohio

Last updated: ... (Local time)

Major air pollutants in Marion, Ohio

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

9.10 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

48.85 μg/m³

155

255

425

605+

Ozone (O₃)

52.30 ppb

201

201+

Sulfur Dioxide (SO₂)

1.41 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

5.57 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.25 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Looks like we don't have this data available right now

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Marion, Ohio

Scroll To Air Quality Map

Track live Marion, Ohio air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-20T22:00:00.000Z	41 \| good	5.57 \| good	23.634 \| good	43.968 \| good	1.062 \| good	8.347 \| good	0.203 \| good
2026-10-20T23:00:00.000Z	42 \| good	4.364 \| good	18.36 \| good	45.055 \| good	1.107 \| good	1.324 \| good	0.27 \| good
2026-10-21T00:00:00.000Z	41 \| good	5.61 \| good	22.048 \| good	44.33 \| good	1.307 \| good	2.937 \| good	0.438 \| good
2026-10-21T01:00:00.000Z	49 \| good	9.279 \| good	24.145 \| good	39.44 \| good	1.33 \| good	4.251 \| good	0.509 \| good
2026-10-21T02:00:00.000Z	38 \| good	7.037 \| good	38.023 \| good	32.552 \| good	1.285 \| good	5.81 \| good	0.466 \| good
2026-10-21T03:00:00.000Z	64 \| moderate	16.139 \| fine	71.71 \| fine	17.401 \| good	1.378 \| good	9.405 \| good	0.222 \| good
2026-10-21T04:00:00.000Z	44 \| good	8.313 \| good	31.08 \| good	32.556 \| good	1.397 \| good	5.866 \| good	0.409 \| good
2026-10-21T05:00:00.000Z	52 \| moderate	10.048 \| good	32.706 \| good	22.465 \| good	1.438 \| good	10.072 \| good	0.456 \| good
2026-10-21T06:00:00.000Z	56 \| moderate	11.721 \| good	46.001 \| good	21.578 \| good	1.22 \| good	8.345 \| good	0.423 \| good
2026-10-21T07:00:00.000Z	38 \| good	6.746 \| good	38.485 \| good	19.911 \| good	1.238 \| good	10.964 \| good	0.455 \| good
2026-10-21T08:00:00.000Z	38 \| good	7.016 \| good	34.56 \| good	18.125 \| good	1.152 \| good	14.198 \| good	0.411 \| good
2026-10-21T09:00:00.000Z	33 \| good	6.073 \| good	26.176 \| good	11.574 \| good	1.142 \| good	12.135 \| good	0.425 \| good
2026-10-21T10:00:00.000Z	33 \| good	6.014 \| good	25.696 \| good	15.951 \| good	1.271 \| good	14.291 \| good	0.546 \| good
2026-10-21T11:00:00.000Z	38 \| good	6.538 \| good	29.43 \| good	9.655 \| good	1.287 \| good	13.955 \| good	0.485 \| good
2026-10-21T12:00:00.000Z	44 \| good	7.713 \| good	24.33 \| good	14.269 \| good	1.245 \| good	15.614 \| good	0.686 \| good
2026-10-21T13:00:00.000Z	52 \| moderate	10.301 \| good	39.148 \| good	11.063 \| good	1.303 \| good	14.108 \| good	0.78 \| good
2026-10-21T14:00:00.000Z	56 \| moderate	12.018 \| good	51.433 \| good	8.253 \| good	1.683 \| good	16.581 \| good	0.614 \| good
2026-10-21T15:00:00.000Z	71 \| moderate	19.601 \| fine	58.524 \| fine	13.056 \| good	1.67 \| good	14.953 \| good	0.553 \| good
2026-10-21T16:00:00.000Z	67 \| moderate	17.705 \| fine	73.118 \| fine	15.973 \| good	1.155 \| good	8.178 \| good	0.478 \| good
2026-10-21T17:00:00.000Z	60 \| moderate	14.487 \| fine	48.214 \| good	21.952 \| good	2.379 \| good	11.269 \| good	0.449 \| good
2026-10-21T18:00:00.000Z	56 \| moderate	11.519 \| good	32.982 \| good	34.299 \| good	1.596 \| good	11.245 \| good	0.335 \| good
2026-10-21T19:00:00.000Z	52 \| moderate	10.356 \| good	29.571 \| good	38.047 \| good	1.435 \| good	9.571 \| good	0.268 \| good
2026-10-21T20:00:00.000Z	44 \| good	8.21 \| good	37.313 \| good	39.343 \| good	1.167 \| good	9.334 \| good	0.282 \| good
2026-10-21T21:00:00.000Z	44 \| good	7.594 \| good	27.62 \| good	47.169 \| good	1.282 \| good	8.559 \| good	0.296 \| good
2026-10-21T22:00:00.000Z	46 \| good	6.566 \| good	24.547 \| good	49.693 \| good	1.132 \| good	10.921 \| good	0.283 \| good
2026-10-21T23:00:00.000Z	44 \| good	5.757 \| good	21.203 \| good	48.173 \| good	1.173 \| good	8.123 \| good	0.366 \| good
2026-10-22T00:00:00.000Z	37 \| good	6.349 \| good	23.606 \| good	40.089 \| good	1.199 \| good	16.089 \| good	0.335 \| good
2026-10-22T01:00:00.000Z	38 \| good	6.997 \| good	22.793 \| good	32.461 \| good	1.582 \| good	15.445 \| good	0.402 \| good
2026-10-22T02:00:00.000Z	38 \| good	7.468 \| good	33.853 \| good	31.008 \| good	1.598 \| good	10.611 \| good	0.409 \| good
2026-10-22T03:00:00.000Z	49 \| good	8.603 \| good	37.908 \| good	11.785 \| good	0.784 \| good	11.176 \| good	0.254 \| good
2026-10-22T04:00:00.000Z	38 \| good	6.835 \| good	22.842 \| good	18.533 \| good	1.609 \| good	12.421 \| good	0.372 \| good
2026-10-22T05:00:00.000Z	49 \| good	9.176 \| good	25.559 \| good	11.752 \| good	1.546 \| good	15.004 \| good	0.383 \| good
2026-10-22T06:00:00.000Z	38 \| good	7.42 \| good	24.836 \| good	14.262 \| good	1.368 \| good	15.042 \| good	0.385 \| good
2026-10-22T07:00:00.000Z	38 \| good	7.297 \| good	22.598 \| good	13.288 \| good	1.316 \| good	10.717 \| good	0.404 \| good
2026-10-22T08:00:00.000Z	49 \| good	9.072 \| good	21.489 \| good	10.918 \| good	1.32 \| good	9.383 \| good	0.368 \| good
2026-10-22T09:00:00.000Z	56 \| moderate	11.964 \| good	59.912 \| fine	12.307 \| good	0.938 \| good	8.438 \| good	0.369 \| good
2026-10-22T10:00:00.000Z	44 \| good	7.549 \| good	22.877 \| good	13.653 \| good	1.093 \| good	9.258 \| good	0.382 \| good
2026-10-22T11:00:00.000Z	52 \| moderate	9.908 \| good	20.215 \| good	8.693 \| good	1.343 \| good	10.395 \| good	0.569 \| good
2026-10-22T12:00:00.000Z	54 \| moderate	11.108 \| good	37.616 \| good	13.166 \| good	1.304 \| good	11.363 \| good	0.647 \| good
2026-10-22T13:00:00.000Z	54 \| moderate	11.35 \| good	28.345 \| good	13.763 \| good	1.232 \| good	14.726 \| good	0.758 \| good
2026-10-22T14:00:00.000Z	58 \| moderate	12.608 \| fine	20.273 \| good	12.35 \| good	1.31 \| good	15.631 \| good	0.711 \| good
2026-10-22T15:00:00.000Z	56 \| moderate	12.365 \| fine	39.018 \| good	15.268 \| good	1.736 \| good	11.815 \| good	0.486 \| good
2026-10-22T16:00:00.000Z	56 \| moderate	11.665 \| good	38.446 \| good	17.372 \| good	1.299 \| good	10.98 \| good	0.377 \| good
2026-10-22T17:00:00.000Z	49 \| good	9.067 \| good	39.251 \| good	30.199 \| good	1.536 \| good	14.205 \| good	0.32 \| good
2026-10-22T18:00:00.000Z	33 \| good	6.014 \| good	26.173 \| good	34.066 \| good	1.326 \| good	12.117 \| good	0.274 \| good
2026-10-22T19:00:00.000Z	54 \| moderate	11.222 \| good	44.118 \| good	38.535 \| good	1.671 \| good	10.02 \| good	0.264 \| good
2026-10-22T20:00:00.000Z	42 \| good	7.208 \| good	25.884 \| good	45.456 \| good	1.799 \| good	6.871 \| good	0.251 \| good
2026-10-22T21:00:00.000Z	49 \| good	9.101 \| good	48.854 \| good	52.298 \| good	1.413 \| good	5.573 \| good	0.251 \| good
2026-10-22T21:00:00.000Z	49 \| good	9.101 \| good	48.854 \| good	52.298 \| good	1.413 \| good	5.573 \| good	0.251 \| good
2026-10-22T22:00:00.000Z	49 \| good	8.715 \| good	38.336 \| good	44.109 \| good	1.63 \| good	3.842 \| good	0.2 \| good
2026-10-22T23:00:00.000Z	52 \| moderate	9.748 \| good	43.438 \| good	34.882 \| good	1.506 \| good	6.525 \| good	0.223 \| good
2026-10-23T00:00:00.000Z	58 \| moderate	13.206 \| fine	59.112 \| fine	30.166 \| good	1.439 \| good	8.11 \| good	0.237 \| good
2026-10-23T01:00:00.000Z	64 \| moderate	15.923 \| fine	70.905 \| fine	28.485 \| good	1.41 \| good	9.091 \| good	0.246 \| good
2026-10-23T02:00:00.000Z	66 \| moderate	17.118 \| fine	76.348 \| fine	26.568 \| good	1.398 \| good	10.061 \| good	0.255 \| good
2026-10-23T03:00:00.000Z	67 \| moderate	17.735 \| fine	78.508 \| fine	24.455 \| good	1.395 \| good	11.305 \| good	0.267 \| good
2026-10-23T04:00:00.000Z	67 \| moderate	17.654 \| fine	78.436 \| fine	19.669 \| good	1.39 \| good	12.489 \| good	0.28 \| good
2026-10-23T05:00:00.000Z	66 \| moderate	16.778 \| fine	74.482 \| fine	16.852 \| good	1.379 \| good	13.189 \| good	0.291 \| good
2026-10-23T06:00:00.000Z	64 \| moderate	16.027 \| fine	71.91 \| fine	16.305 \| good	1.364 \| good	13.664 \| good	0.299 \| good
2026-10-23T07:00:00.000Z	62 \| moderate	15.307 \| fine	68.143 \| fine	15.712 \| good	1.339 \| good	13.814 \| good	0.303 \| good
2026-10-23T08:00:00.000Z	62 \| moderate	14.672 \| fine	65.867 \| fine	14.455 \| good	1.308 \| good	13.3 \| good	0.302 \| good
2026-10-23T09:00:00.000Z	62 \| moderate	14.556 \| fine	64.706 \| fine	12.579 \| good	1.267 \| good	11.935 \| good	0.294 \| good
2026-10-23T10:00:00.000Z	60 \| moderate	13.744 \| fine	61.999 \| fine	10.505 \| good	1.213 \| good	10.36 \| good	0.282 \| good
2026-10-23T11:00:00.000Z	58 \| moderate	13.163 \| fine	59.77 \| fine	9.97 \| good	1.134 \| good	9.569 \| good	0.273 \| good
2026-10-23T12:00:00.000Z	58 \| moderate	12.59 \| fine	56.404 \| fine	9.567 \| good	1.037 \| good	10.432 \| good	0.278 \| good
2026-10-23T13:00:00.000Z	60 \| moderate	14.183 \| fine	63.959 \| fine	12.165 \| good	0.843 \| good	10.015 \| good	0.297 \| good
2026-10-23T14:00:00.000Z	62 \| moderate	15.263 \| fine	68.372 \| fine	24.027 \| good	0.75 \| good	7.141 \| good	0.28 \| good
2026-10-23T15:00:00.000Z	58 \| moderate	13.159 \| fine	58.791 \| fine	33.522 \| good	0.838 \| good	4.656 \| good	0.237 \| good
2026-10-23T16:00:00.000Z	56 \| moderate	11.718 \| good	51.903 \| good	40.956 \| good	1.08 \| good	2.324 \| good	0.198 \| good
2026-10-23T17:00:00.000Z	54 \| moderate	10.605 \| good	47.159 \| good	47.101 \| good	1.097 \| good	1.337 \| good	0.181 \| good
2026-10-23T18:00:00.000Z	52 \| moderate	9.616 \| good	42.533 \| good	48.843 \| good	0.955 \| good	1.044 \| good	0.175 \| good
2026-10-23T19:00:00.000Z	49 \| good	9.045 \| good	40.227 \| good	48.805 \| good	0.885 \| good	0.961 \| good	0.172 \| good
2026-10-23T20:00:00.000Z	52 \| moderate	9.607 \| good	42.795 \| good	49.033 \| good	0.848 \| good	0.992 \| good	0.172 \| good
2026-10-23T21:00:00.000Z	54 \| moderate	10.536 \| good	46.71 \| good	49.164 \| good	0.838 \| good	1.185 \| good	0.173 \| good
2026-10-23T22:00:00.000Z	56 \| moderate	11.81 \| good	52.006 \| good	42.508 \| good	0.814 \| good	2.52 \| good	0.187 \| good
2026-10-23T23:00:00.000Z	62 \| moderate	15.117 \| fine	67.915 \| fine	32.365 \| good	0.794 \| good	6.339 \| good	0.223 \| good
2026-10-24T00:00:00.000Z	67 \| moderate	17.721 \| fine	78.523 \| fine	24.064 \| good	0.816 \| good	9.05 \| good	0.247 \| good
2026-10-24T01:00:00.000Z	67 \| moderate	18.223 \| fine	80.145 \| fine	19.208 \| good	0.862 \| good	9.592 \| good	0.25 \| good
2026-10-24T02:00:00.000Z	69 \| moderate	19.312 \| fine	85.474 \| fine	16.638 \| good	0.91 \| good	9.299 \| good	0.249 \| good
2026-10-24T03:00:00.000Z	71 \| moderate	19.935 \| fine	88.069 \| fine	16.478 \| good	0.932 \| good	8.929 \| good	0.246 \| good
2026-10-24T04:00:00.000Z	71 \| moderate	20.256 \| fine	89.416 \| fine	14.786 \| good	0.896 \| good	8.544 \| good	0.244 \| good
2026-10-24T05:00:00.000Z	69 \| moderate	18.902 \| fine	83.45 \| fine	14.518 \| good	0.809 \| good	8.082 \| good	0.24 \| good
2026-10-24T06:00:00.000Z	67 \| moderate	17.828 \| fine	79.396 \| fine	13.711 \| good	0.712 \| good	7.93 \| good	0.238 \| good
2026-10-24T07:00:00.000Z	66 \| moderate	16.664 \| fine	73.988 \| fine	15.734 \| good	0.635 \| good	8.003 \| good	0.237 \| good
2026-10-24T08:00:00.000Z	64 \| moderate	15.76 \| fine	70.416 \| fine	15.368 \| good	0.583 \| good	8.137 \| good	0.236 \| good
2026-10-24T09:00:00.000Z	64 \| moderate	16.074 \| fine	71.953 \| fine	13.587 \| good	0.555 \| good	8.274 \| good	0.236 \| good
2026-10-24T10:00:00.000Z	64 \| moderate	15.929 \| fine	70.734 \| fine	12.575 \| good	0.55 \| good	8.502 \| good	0.236 \| good
2026-10-24T11:00:00.000Z	64 \| moderate	15.899 \| fine	70.686 \| fine	11.283 \| good	0.559 \| good	9.049 \| good	0.238 \| good
2026-10-24T12:00:00.000Z	64 \| moderate	15.697 \| fine	70.023 \| fine	10.073 \| good	0.579 \| good	10.19 \| good	0.249 \| good
2026-10-24T13:00:00.000Z	62 \| moderate	14.993 \| fine	66.554 \| fine	12.221 \| good	0.568 \| good	8.712 \| good	0.265 \| good
2026-10-24T14:00:00.000Z	58 \| moderate	12.985 \| fine	58.436 \| fine	20.647 \| good	0.603 \| good	6.097 \| good	0.253 \| good
2026-10-24T15:00:00.000Z	54 \| moderate	10.989 \| good	48.655 \| good	30.036 \| good	0.9 \| good	4.132 \| good	0.214 \| good
2026-10-24T16:00:00.000Z	52 \| moderate	10.231 \| good	45.649 \| good	37.875 \| good	1.023 \| good	2.367 \| good	0.184 \| good
2026-10-24T17:00:00.000Z	49 \| good	9.247 \| good	41.472 \| good	43.853 \| good	0.917 \| good	1.472 \| good	0.174 \| good
2026-10-24T18:00:00.000Z	44 \| good	8.297 \| good	36.392 \| good	45.515 \| good	0.842 \| good	1.152 \| good	0.17 \| good
2026-10-24T19:00:00.000Z	43 \| good	6.994 \| good	31.271 \| good	46.154 \| good	0.774 \| good	1.019 \| good	0.166 \| good
2026-10-24T20:00:00.000Z	43 \| good	6.056 \| good	26.505 \| good	46.412 \| good	0.715 \| good	0.987 \| good	0.163 \| good
2026-10-24T21:00:00.000Z	43 \| good	5.523 \| good	23.893 \| good	45.517 \| good	0.67 \| good	1.092 \| good	0.161 \| good

Marion

Get reliable air quality data to drive your business

Marion, Ohio air quality map: Stay updated on AQI near you

0.29ppm

How accurate is Ohio, USA air quality data?

Air quality and pollutant data for Ohio, 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 Marion, Ohio?

The air quality information for Marion, Ohio is updated every hour for accuracy.

What time in the last 24 hours was the air quality in Marion, Ohio at its worst?

In the past 24 hours, the air quality in Marion, Ohio was at its worst at 02:00:00 on 2026-10-22.

When did Marion, Ohio experience the best air quality in the last 24 hours?

In the last 24 hours, the best air quality in Marion, Ohio was observed at 06:00:00 on 2026-10-22.

What is the AQI in Marion, Ohio right now?

As of now, the AQI in Marion, Ohio is 49, indicating Good conditions.

What is the most common type of pollution in Marion, Ohio?

Marion, Ohio air has the highest levels of PM2.5.

What should I do in case of poor air quality in Marion, Ohio?

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

What is the PM_2.5 level in Marion, Ohio at the moment?

PM_2.5 levels in Marion, Ohio are currently 9.101 μg/m³.

What is the PM₁₀ level in Marion, Ohio at the moment?

The PM₁₀ concentration in Marion, Ohio is 48.854 μg/m³ at the moment.

What is the carbon monoxide (CO) level in Marion, Ohio at the moment?

The current carbon monoxide (CO) concentration in Marion, Ohio is 0.251 ppm.

What is the sulfur dioxide (SO₂) level in Marion, Ohio at the moment?

Currently, Marion, Ohio has a sulfur dioxide (SO₂) concentration of 1.413 ppb.

What is the ozone (O₃) level in Marion, Ohio at the moment?

The current ozone (O₃) level in Marion, Ohio at the moment is 52.298 ppm.

What is the nitrogen dioxide (NO₂) level in Marion, Ohio at the moment?

Nitrogen dioxide (NO₂) level in Marion, Ohio at the moment is 5.573 ppb.

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