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

The PM10 concentration in Marion, Ohio is 21.679 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 2.157 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 48.839 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 4.56 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 5.491 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)

5.49 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

21.68 μg/m³

155

255

425

605+

Ozone (O₃)

48.84 ppb

201

201+

Sulfur Dioxide (SO₂)

2.16 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.56 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.13 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
2026-07-21T23:00:00.000Z	60 \| moderate	14.221 \| fine	34.175 \| good	42.949 \| good	1.124 \| good	3.659 \| good	0.213 \| good
2026-07-22T00:00:00.000Z	56 \| moderate	12.461 \| fine	31.656 \| good	42.41 \| good	0.72 \| good	3.45 \| good	0.211 \| good
2026-07-22T01:00:00.000Z	58 \| moderate	12.696 \| fine	40.842 \| good	41.001 \| good	0.741 \| good	5.518 \| good	0.169 \| good
2026-07-22T02:00:00.000Z	60 \| moderate	14.35 \| fine	55.34 \| fine	37.612 \| good	0.766 \| good	3.626 \| good	0.182 \| good
2026-07-22T03:00:00.000Z	60 \| moderate	13.533 \| fine	47.327 \| good	40.052 \| good	0.942 \| good	5.35 \| good	0.165 \| good
2026-07-22T04:00:00.000Z	56 \| moderate	12.236 \| fine	47.106 \| good	30.808 \| good	0.912 \| good	2.957 \| good	0.178 \| good
2026-07-22T05:00:00.000Z	56 \| moderate	11.674 \| good	43.078 \| good	29.685 \| good	0.943 \| good	2.935 \| good	0.151 \| good
2026-07-22T06:00:00.000Z	54 \| moderate	11.282 \| good	31.008 \| good	27.999 \| good	1.004 \| good	2.762 \| good	0.128 \| good
2026-07-22T07:00:00.000Z	54 \| moderate	10.88 \| good	24.286 \| good	31.529 \| good	0.983 \| good	1.736 \| good	0.215 \| good
2026-07-22T08:00:00.000Z	54 \| moderate	10.984 \| good	35.056 \| good	25.814 \| good	0.923 \| good	1.851 \| good	0.188 \| good
2026-07-22T09:00:00.000Z	49 \| good	9.468 \| good	34.235 \| good	27.028 \| good	0.983 \| good	1.759 \| good	0.196 \| good
2026-07-22T10:00:00.000Z	49 \| good	8.687 \| good	25.598 \| good	23.742 \| good	0.893 \| good	2.531 \| good	0.172 \| good
2026-07-22T11:00:00.000Z	38 \| good	7.326 \| good	21.461 \| good	22.308 \| good	0.963 \| good	3.833 \| good	0.112 \| good
2026-07-22T12:00:00.000Z	33 \| good	5.645 \| good	18.922 \| good	23.162 \| good	0.962 \| good	3.427 \| good	0.174 \| good
2026-07-22T13:00:00.000Z	27 \| good	5.187 \| good	19.732 \| good	22.769 \| good	0.995 \| good	4.223 \| good	0.175 \| good
2026-07-22T14:00:00.000Z	27 \| good	5.319 \| good	9.886 \| good	24.023 \| good	0.872 \| good	4.867 \| good	0.223 \| good
2026-07-22T15:00:00.000Z	27 \| good	5.014 \| good	25.411 \| good	25.291 \| good	1.048 \| good	3.994 \| good	0.12 \| good
2026-07-22T16:00:00.000Z	27 \| good	4.802 \| good	16.073 \| good	26.846 \| good	1.719 \| good	3.267 \| good	0.107 \| good
2026-07-22T17:00:00.000Z	28 \| good	3.502 \| good	8.13 \| good	30.455 \| good	0.95 \| good	3.185 \| good	0.14 \| good
2026-07-22T18:00:00.000Z	29 \| good	2.408 \| good	9.516 \| good	30.55 \| good	0.959 \| good	3.064 \| good	0.15 \| good
2026-07-22T19:00:00.000Z	31 \| good	3.022 \| good	9.031 \| good	33.314 \| good	0.697 \| good	3.185 \| good	0.193 \| good
2026-07-22T20:00:00.000Z	33 \| good	2.419 \| good	10.785 \| good	36.109 \| good	1.082 \| good	2.772 \| good	0.135 \| good
2026-07-22T21:00:00.000Z	32 \| good	2.669 \| good	8.779 \| good	35.134 \| good	0.697 \| good	3.111 \| good	0.111 \| good
2026-07-22T22:00:00.000Z	34 \| good	3.121 \| good	16.002 \| good	37.212 \| good	1.098 \| good	3.465 \| good	0.113 \| good
2026-07-22T23:00:00.000Z	33 \| good	3.659 \| good	12.049 \| good	35.85 \| good	0.821 \| good	3.673 \| good	0.122 \| good
2026-07-23T00:00:00.000Z	35 \| good	2.497 \| good	12.244 \| good	37.981 \| good	0.801 \| good	2.733 \| good	0.128 \| good
2026-07-23T01:00:00.000Z	32 \| good	3.468 \| good	16.041 \| good	34.535 \| good	0.801 \| good	3.405 \| good	0.115 \| good
2026-07-23T02:00:00.000Z	31 \| good	3.262 \| good	12.429 \| good	33.21 \| good	0.821 \| good	6.223 \| good	0.143 \| good
2026-07-23T03:00:00.000Z	19 \| good	2.104 \| good	8.334 \| good	21.005 \| good	0.563 \| good	10.538 \| good	0.201 \| good
2026-07-23T04:00:00.000Z	24 \| good	4.483 \| good	13.93 \| good	25.837 \| good	0.654 \| good	9.746 \| good	0.134 \| good
2026-07-23T05:00:00.000Z	27 \| good	5.246 \| good	15.897 \| good	22.649 \| good	0.752 \| good	10.98 \| good	0.132 \| good
2026-07-23T06:00:00.000Z	27 \| good	5.229 \| good	22.592 \| good	15.406 \| good	0.784 \| good	11.143 \| good	0.134 \| good
2026-07-23T07:00:00.000Z	38 \| good	6.56 \| good	28.74 \| good	14.311 \| good	0.76 \| good	9.002 \| good	0.155 \| good
2026-07-23T08:00:00.000Z	27 \| good	4.938 \| good	19.886 \| good	13.301 \| good	0.78 \| good	14.62 \| good	0.144 \| good
2026-07-23T09:00:00.000Z	27 \| good	4.928 \| good	14.879 \| good	7.223 \| good	0.76 \| good	15.616 \| good	0.13 \| good
2026-07-23T10:00:00.000Z	33 \| good	5.553 \| good	10.496 \| good	10.737 \| good	0.618 \| good	16.468 \| good	0.145 \| good
2026-07-23T11:00:00.000Z	27 \| good	5.021 \| good	11.795 \| good	13.77 \| good	0.713 \| good	16.742 \| good	0.145 \| good
2026-07-23T12:00:00.000Z	38 \| good	6.973 \| good	27.747 \| good	11.177 \| good	0.836 \| good	13.887 \| good	0.251 \| good
2026-07-23T13:00:00.000Z	33 \| good	6.417 \| good	28.586 \| good	11.08 \| good	0.749 \| good	17.237 \| good	0.215 \| good
2026-07-23T14:00:00.000Z	38 \| good	6.759 \| good	17.2 \| good	17.072 \| good	0.923 \| good	10.84 \| good	0.188 \| good
2026-07-23T15:00:00.000Z	38 \| good	7.08 \| good	29.596 \| good	21.12 \| good	1.861 \| good	9.993 \| good	0.204 \| good
2026-07-23T16:00:00.000Z	38 \| good	6.925 \| good	31.054 \| good	24.23 \| good	1.253 \| good	8.236 \| good	0.157 \| good
2026-07-23T17:00:00.000Z	38 \| good	6.785 \| good	19.519 \| good	33.273 \| good	2.977 \| good	5.591 \| good	0.134 \| good
2026-07-23T18:00:00.000Z	34 \| good	5.367 \| good	27.245 \| good	37.248 \| good	2.496 \| good	3.828 \| good	0.17 \| good
2026-07-23T19:00:00.000Z	38 \| good	5.436 \| good	20.046 \| good	41.282 \| good	2.994 \| good	5.611 \| good	0.127 \| good
2026-07-23T20:00:00.000Z	39 \| good	5.432 \| good	30.106 \| good	42.493 \| good	3.555 \| good	4.289 \| good	0.129 \| good
2026-07-23T21:00:00.000Z	45 \| good	5.491 \| good	21.679 \| good	48.839 \| good	2.157 \| good	4.56 \| good	0.13 \| good
2026-07-23T22:00:00.000Z	45 \| good	5.491 \| good	21.679 \| good	48.839 \| good	2.157 \| good	4.56 \| good	0.13 \| good
2026-07-23T23:00:00.000Z	39 \| good	4.093 \| good	17.788 \| good	42.087 \| good	0.323 \| good	0.947 \| good	0.129 \| good
2026-07-24T00:00:00.000Z	31 \| good	4.363 \| good	19.035 \| good	32.792 \| good	0.296 \| good	2.806 \| good	0.146 \| good
2026-07-24T01:00:00.000Z	29 \| good	2.101 \| good	8.299 \| good	31.471 \| good	0.289 \| good	5.478 \| good	0.165 \| good
2026-07-24T02:00:00.000Z	26 \| good	0.688 \| good	2.371 \| good	28.178 \| good	0.299 \| good	6.707 \| good	0.173 \| good
2026-07-24T03:00:00.000Z	27 \| good	0.563 \| good	2 \| good	28.542 \| good	0.325 \| good	6.602 \| good	0.171 \| good
2026-07-24T04:00:00.000Z	26 \| good	0.867 \| good	3.089 \| good	27.889 \| good	0.4 \| good	6.357 \| good	0.169 \| good
2026-07-24T05:00:00.000Z	25 \| good	1.353 \| good	5.228 \| good	26.801 \| good	0.535 \| good	6.306 \| good	0.17 \| good
2026-07-24T06:00:00.000Z	21 \| good	2.048 \| good	8.063 \| good	23.208 \| good	0.69 \| good	6.193 \| good	0.172 \| good
2026-07-24T07:00:00.000Z	20 \| good	2.207 \| good	8.786 \| good	21.578 \| good	0.771 \| good	6.147 \| good	0.174 \| good
2026-07-24T08:00:00.000Z	20 \| good	1.922 \| good	7.926 \| good	21.66 \| good	0.736 \| good	6.265 \| good	0.176 \| good
2026-07-24T09:00:00.000Z	18 \| good	1.289 \| good	5.137 \| good	19.32 \| good	0.646 \| good	6.487 \| good	0.177 \| good
2026-07-24T10:00:00.000Z	12 \| good	0.761 \| good	2.802 \| good	12.66 \| good	0.561 \| good	6.742 \| good	0.178 \| good
2026-07-24T11:00:00.000Z	11 \| good	1.602 \| good	6.951 \| good	11.685 \| good	0.499 \| good	6.694 \| good	0.179 \| good
2026-07-24T12:00:00.000Z	22 \| good	3.514 \| good	15.852 \| good	12.668 \| good	0.456 \| good	5.464 \| good	0.18 \| good
2026-07-24T13:00:00.000Z	22 \| good	4.488 \| good	19.113 \| good	21.435 \| good	0.487 \| good	4.24 \| good	0.178 \| good
2026-07-24T14:00:00.000Z	27 \| good	4.991 \| good	21.489 \| good	28.313 \| good	0.59 \| good	3.108 \| good	0.171 \| good
2026-07-24T15:00:00.000Z	32 \| good	4.916 \| good	21.523 \| good	35.249 \| good	0.675 \| good	1.69 \| good	0.155 \| good
2026-07-24T16:00:00.000Z	37 \| good	4.426 \| good	19.447 \| good	40.36 \| good	0.639 \| good	0.965 \| good	0.148 \| good
2026-07-24T17:00:00.000Z	39 \| good	4.908 \| good	21.094 \| good	41.823 \| good	0.62 \| good	0.777 \| good	0.148 \| good
2026-07-24T18:00:00.000Z	40 \| good	4.233 \| good	18.597 \| good	43.291 \| good	0.616 \| good	0.738 \| good	0.149 \| good
2026-07-24T19:00:00.000Z	40 \| good	4.811 \| good	20.798 \| good	43.036 \| good	0.61 \| good	0.774 \| good	0.151 \| good
2026-07-24T20:00:00.000Z	41 \| good	4.326 \| good	18.563 \| good	43.764 \| good	0.6 \| good	0.836 \| good	0.154 \| good
2026-07-24T21:00:00.000Z	44 \| good	4.539 \| good	19.627 \| good	47.809 \| good	0.594 \| good	0.853 \| good	0.157 \| good
2026-07-24T22:00:00.000Z	44 \| good	5.026 \| good	21.563 \| good	47.686 \| good	0.592 \| good	0.985 \| good	0.161 \| good
2026-07-24T23:00:00.000Z	40 \| good	4.902 \| good	21.44 \| good	42.593 \| good	0.588 \| good	1.385 \| good	0.167 \| good
2026-07-25T00:00:00.000Z	33 \| good	5.037 \| good	21.611 \| good	35.522 \| good	0.538 \| good	4.714 \| good	0.199 \| good
2026-07-25T01:00:00.000Z	26 \| good	3.991 \| good	17.335 \| good	27.66 \| good	0.558 \| good	9.068 \| good	0.226 \| good
2026-07-25T02:00:00.000Z	27 \| good	4.551 \| good	19.887 \| good	25.166 \| good	0.614 \| good	11.79 \| good	0.241 \| good
2026-07-25T03:00:00.000Z	27 \| good	5.462 \| good	23.513 \| good	24.53 \| good	0.668 \| good	13.459 \| good	0.248 \| good
2026-07-25T04:00:00.000Z	33 \| good	5.521 \| good	23.567 \| good	26.477 \| good	0.715 \| good	14.919 \| good	0.255 \| good
2026-07-25T05:00:00.000Z	25 \| good	4.166 \| good	18.525 \| good	26.684 \| good	0.741 \| good	16.017 \| good	0.26 \| good
2026-07-25T06:00:00.000Z	27 \| good	4.79 \| good	20.783 \| good	24.005 \| good	0.757 \| good	16.709 \| good	0.263 \| good
2026-07-25T07:00:00.000Z	27 \| good	5.036 \| good	21.622 \| good	23.368 \| good	0.776 \| good	17.434 \| good	0.265 \| good
2026-07-25T08:00:00.000Z	27 \| good	4.565 \| good	19.483 \| good	22.109 \| good	0.784 \| good	18.653 \| good	0.27 \| good
2026-07-25T09:00:00.000Z	20 \| good	2.842 \| good	11.919 \| good	21.637 \| good	0.781 \| good	20.507 \| good	0.28 \| good
2026-07-25T10:00:00.000Z	21 \| good	3.477 \| good	15.585 \| good	18.018 \| good	0.769 \| good	21.759 \| good	0.286 \| good
2026-07-25T11:00:00.000Z	22 \| good	3.864 \| good	17.052 \| good	15.565 \| good	0.75 \| good	19.192 \| good	0.285 \| good
2026-07-25T12:00:00.000Z	22 \| good	4.046 \| good	17.629 \| good	18.336 \| good	0.67 \| good	12.776 \| good	0.272 \| good
2026-07-25T13:00:00.000Z	27 \| good	3.624 \| good	15.884 \| good	28.521 \| good	0.739 \| good	8.136 \| good	0.236 \| good
2026-07-25T14:00:00.000Z	33 \| good	3.594 \| good	15.635 \| good	36.417 \| good	0.937 \| good	4.519 \| good	0.197 \| good
2026-07-25T15:00:00.000Z	39 \| good	3.787 \| good	16.477 \| good	41.501 \| good	1.08 \| good	1.831 \| good	0.172 \| good
2026-07-25T16:00:00.000Z	42 \| good	4.263 \| good	18.343 \| good	44.847 \| good	0.954 \| good	0.86 \| good	0.166 \| good
2026-07-25T17:00:00.000Z	44 \| good	5.398 \| good	23.409 \| good	46.656 \| good	0.847 \| good	0.642 \| good	0.164 \| good
2026-07-25T18:00:00.000Z	44 \| good	5.986 \| good	26.196 \| good	47.615 \| good	0.779 \| good	0.572 \| good	0.162 \| good
2026-07-25T19:00:00.000Z	45 \| good	5.615 \| good	24.362 \| good	48.665 \| good	0.723 \| good	0.546 \| good	0.16 \| good
2026-07-25T20:00:00.000Z	45 \| good	5.408 \| good	23.373 \| good	48.977 \| good	0.668 \| good	0.56 \| good	0.159 \| good
2026-07-25T21:00:00.000Z	43 \| good	6.109 \| good	27.178 \| good	46.158 \| good	0.618 \| good	0.603 \| good	0.159 \| good
2026-07-25T22:00:00.000Z	38 \| good	7.483 \| good	32.786 \| good	40.837 \| good	0.58 \| good	0.707 \| good	0.159 \| good

Marion

Get reliable air quality data to drive your business

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

0.11ppm

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 09:00:00 on 2026-07-23.

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 03:00:00 on 2026-07-23.

What is the AQI in Marion, Ohio right now?

As of now, the AQI in Marion, Ohio is 45, indicating Good conditions.

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

Marion, Ohio air has the highest levels of O3.

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 5.491 μg/m³.

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

The PM₁₀ concentration in Marion, Ohio is 21.679 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 0.13 ppm.

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

Currently, Marion, Ohio has a sulfur dioxide (SO₂) concentration of 2.157 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 48.839 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 4.56 ppb.

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