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

The PM10 concentration in Marion, Ohio is 24.241 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 2.207 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 20.188 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 13.645 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 6.783 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)

6.78 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

24.24 μg/m³

155

255

425

605+

Ozone (O₃)

20.19 ppb

201

201+

Sulfur Dioxide (SO₂)

2.21 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

13.64 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
2025-12-14T01:00:00.000Z	24 \| good	4.213 \| good	18.275 \| good	26.355 \| good	1.205 \| good	5.003 \| good	0.274 \| good
2025-12-14T02:00:00.000Z	27 \| good	5.432 \| good	18.912 \| good	25.973 \| good	1.076 \| good	4.845 \| good	0.26 \| good
2025-12-14T03:00:00.000Z	33 \| good	6.45 \| good	23.858 \| good	25.067 \| good	1.171 \| good	3.72 \| good	0.166 \| good
2025-12-14T04:00:00.000Z	33 \| good	6.053 \| good	25.127 \| good	30.081 \| good	1.601 \| good	3.628 \| good	0.167 \| good
2025-12-14T05:00:00.000Z	33 \| good	5.982 \| good	15.645 \| good	25.523 \| good	1.495 \| good	4.512 \| good	0.177 \| good
2025-12-14T06:00:00.000Z	38 \| good	6.979 \| good	24.495 \| good	25.1 \| good	1.544 \| good	4.383 \| good	0.177 \| good
2025-12-14T07:00:00.000Z	38 \| good	7.296 \| good	20.179 \| good	27.019 \| good	1.53 \| good	4.253 \| good	0.176 \| good
2025-12-14T08:00:00.000Z	49 \| good	9.216 \| good	10.08 \| good	27.215 \| good	1.359 \| good	5.013 \| good	0.189 \| good
2025-12-14T09:00:00.000Z	28 \| good	3.587 \| good	15.5 \| good	29.624 \| good	1.64 \| good	6.294 \| good	0.178 \| good
2025-12-14T10:00:00.000Z	30 \| good	5.308 \| good	15.511 \| good	31.637 \| good	1.87 \| good	7.091 \| good	0.162 \| good
2025-12-14T11:00:00.000Z	27 \| good	4.785 \| good	16.712 \| good	27.742 \| good	1.958 \| good	7.269 \| good	0.177 \| good
2025-12-14T12:00:00.000Z	49 \| good	9.22 \| good	12.234 \| good	26.59 \| good	1.799 \| good	6.095 \| good	0.189 \| good
2025-12-14T13:00:00.000Z	49 \| good	8.931 \| good	14.832 \| good	28.354 \| good	1.509 \| good	6.052 \| good	0.179 \| good
2025-12-14T14:00:00.000Z	33 \| good	6.003 \| good	9.543 \| good	27.804 \| good	1.423 \| good	5.277 \| good	0.167 \| good
2025-12-14T15:00:00.000Z	44 \| good	8.481 \| good	13.755 \| good	27.788 \| good	1.417 \| good	4.533 \| good	0.183 \| good
2025-12-14T16:00:00.000Z	44 \| good	8.03 \| good	25.219 \| good	27.983 \| good	1.424 \| good	3.868 \| good	0.182 \| good
2025-12-14T17:00:00.000Z	44 \| good	7.853 \| good	9.056 \| good	28.303 \| good	1.441 \| good	3.157 \| good	0.167 \| good
2025-12-14T18:00:00.000Z	38 \| good	7.105 \| good	14.832 \| good	29.147 \| good	1.415 \| good	3.064 \| good	0.167 \| good
2025-12-14T19:00:00.000Z	38 \| good	6.668 \| good	16.737 \| good	30.023 \| good	1.414 \| good	3.07 \| good	0.181 \| good
2025-12-14T20:00:00.000Z	38 \| good	6.809 \| good	16.198 \| good	31.514 \| good	1.414 \| good	5.634 \| good	0.217 \| good
2025-12-14T21:00:00.000Z	33 \| good	6.21 \| good	13.689 \| good	31.91 \| good	1.414 \| good	4.414 \| good	0.182 \| good
2025-12-14T22:00:00.000Z	38 \| good	6.679 \| good	21.362 \| good	29.503 \| good	1.916 \| good	3.761 \| good	0.232 \| good
2025-12-14T23:00:00.000Z	33 \| good	6.126 \| good	24.734 \| good	27.477 \| good	1.672 \| good	4.054 \| good	0.185 \| good
2025-12-15T00:00:00.000Z	27 \| good	4.621 \| good	13.247 \| good	25.611 \| good	1.733 \| good	5.087 \| good	0.202 \| good
2025-12-15T01:00:00.000Z	25 \| good	4.365 \| good	8.888 \| good	26.96 \| good	1.496 \| good	5.112 \| good	0.202 \| good
2025-12-15T02:00:00.000Z	33 \| good	5.763 \| good	12.527 \| good	21.389 \| good	1.776 \| good	6.537 \| good	0.226 \| good
2025-12-15T03:00:00.000Z	23 \| good	2.788 \| good	10.544 \| good	25.329 \| good	2.01 \| good	8.171 \| good	0.201 \| good
2025-12-15T04:00:00.000Z	27 \| good	4.882 \| good	18.771 \| good	25.626 \| good	2.01 \| good	8.392 \| good	0.207 \| good
2025-12-15T05:00:00.000Z	33 \| good	6.491 \| good	11.522 \| good	26.527 \| good	2.136 \| good	7.682 \| good	0.206 \| good
2025-12-15T06:00:00.000Z	38 \| good	6.794 \| good	20.327 \| good	24.799 \| good	2.002 \| good	7.834 \| good	0.207 \| good
2025-12-15T07:00:00.000Z	33 \| good	5.91 \| good	15.328 \| good	22.014 \| good	1.911 \| good	13.291 \| good	0.252 \| good
2025-12-15T08:00:00.000Z	38 \| good	6.585 \| good	15.584 \| good	19.88 \| good	1.912 \| good	18.081 \| good	0.251 \| good
2025-12-15T09:00:00.000Z	44 \| good	7.802 \| good	23.044 \| good	15.826 \| good	1.904 \| good	26.599 \| good	0.204 \| good
2025-12-15T10:00:00.000Z	49 \| good	8.798 \| good	25.803 \| good	13.233 \| good	1.971 \| good	24.758 \| good	0.212 \| good
2025-12-15T11:00:00.000Z	44 \| good	8.1 \| good	24.917 \| good	19.308 \| good	1.976 \| good	20.651 \| good	0.245 \| good
2025-12-15T12:00:00.000Z	44 \| good	8.332 \| good	28.346 \| good	13.558 \| good	1.998 \| good	18.509 \| good	0.309 \| good
2025-12-15T13:00:00.000Z	49 \| good	8.675 \| good	40.375 \| good	17.314 \| good	1.982 \| good	15.756 \| good	0.309 \| good
2025-12-15T14:00:00.000Z	52 \| moderate	9.881 \| good	18.229 \| good	16.081 \| good	2.096 \| good	15.948 \| good	0.355 \| good
2025-12-15T15:00:00.000Z	54 \| moderate	11.382 \| good	29.692 \| good	16.181 \| good	2.106 \| good	15.351 \| good	0.295 \| good
2025-12-15T16:00:00.000Z	56 \| moderate	11.755 \| good	31.016 \| good	16.013 \| good	1.934 \| good	16.407 \| good	0.292 \| good
2025-12-15T17:00:00.000Z	60 \| moderate	13.836 \| fine	45.985 \| good	22.749 \| good	2.127 \| good	13.038 \| good	0.276 \| good
2025-12-15T18:00:00.000Z	58 \| moderate	12.688 \| fine	33.009 \| good	24.84 \| good	2.236 \| good	10.772 \| good	0.227 \| good
2025-12-15T19:00:00.000Z	54 \| moderate	10.892 \| good	37.894 \| good	27.938 \| good	2.036 \| good	10.349 \| good	0.194 \| good
2025-12-15T20:00:00.000Z	52 \| moderate	10.055 \| good	25.497 \| good	27.686 \| good	1.683 \| good	11.433 \| good	0.208 \| good
2025-12-15T21:00:00.000Z	52 \| moderate	10.125 \| good	38.791 \| good	26.507 \| good	1.601 \| good	13.673 \| good	0.255 \| good
2025-12-15T22:00:00.000Z	49 \| good	9.38 \| good	20.45 \| good	26.003 \| good	1.625 \| good	12.14 \| good	0.237 \| good
2025-12-15T23:00:00.000Z	44 \| good	7.864 \| good	29.47 \| good	25.582 \| good	2.277 \| good	12.328 \| good	0.272 \| good
2025-12-16T00:00:00.000Z	38 \| good	6.783 \| good	24.241 \| good	20.188 \| good	2.207 \| good	13.645 \| good	0.246 \| good
2025-12-16T00:00:00.000Z	38 \| good	6.783 \| good	24.241 \| good	20.188 \| good	2.207 \| good	13.645 \| good	0.246 \| good
2025-12-16T01:00:00.000Z	49 \| good	8.816 \| good	38.918 \| good	12.835 \| good	1.782 \| good	8.746 \| good	0.205 \| good
2025-12-16T02:00:00.000Z	44 \| good	8.045 \| good	35.133 \| good	9.703 \| good	1.619 \| good	8.714 \| good	0.208 \| good
2025-12-16T03:00:00.000Z	44 \| good	7.628 \| good	33.793 \| good	8.611 \| good	1.456 \| good	8.682 \| good	0.211 \| good
2025-12-16T04:00:00.000Z	49 \| good	8.619 \| good	37.512 \| good	8.066 \| good	1.346 \| good	8.355 \| good	0.211 \| good
2025-12-16T05:00:00.000Z	49 \| good	9.135 \| good	40.835 \| good	7.629 \| good	1.236 \| good	8.028 \| good	0.211 \| good
2025-12-16T06:00:00.000Z	49 \| good	9.398 \| good	42.209 \| good	7.269 \| good	1.126 \| good	7.701 \| good	0.211 \| good
2025-12-16T07:00:00.000Z	52 \| moderate	9.737 \| good	43.332 \| good	6.862 \| good	1.084 \| good	7.439 \| good	0.21 \| good
2025-12-16T08:00:00.000Z	52 \| moderate	10.33 \| good	45.481 \| good	6.507 \| good	1.041 \| good	7.176 \| good	0.209 \| good
2025-12-16T09:00:00.000Z	54 \| moderate	11.114 \| good	49.32 \| good	6.137 \| good	0.999 \| good	6.913 \| good	0.208 \| good
2025-12-16T10:00:00.000Z	56 \| moderate	11.791 \| good	52.623 \| good	5.377 \| good	1.024 \| good	7.148 \| good	0.209 \| good
2025-12-16T11:00:00.000Z	56 \| moderate	12.184 \| fine	55.025 \| fine	5.747 \| good	1.049 \| good	7.384 \| good	0.21 \| good
2025-12-16T12:00:00.000Z	56 \| moderate	11.991 \| good	53.947 \| good	8.088 \| good	1.074 \| good	7.62 \| good	0.211 \| good
2025-12-16T13:00:00.000Z	56 \| moderate	12.313 \| fine	55.219 \| fine	10.233 \| good	1.193 \| good	7.099 \| good	0.214 \| good
2025-12-16T14:00:00.000Z	58 \| moderate	12.83 \| fine	57.276 \| fine	12.89 \| good	1.313 \| good	6.577 \| good	0.216 \| good
2025-12-16T15:00:00.000Z	56 \| moderate	12.498 \| fine	56.459 \| fine	14.379 \| good	1.432 \| good	6.056 \| good	0.218 \| good
2025-12-16T16:00:00.000Z	54 \| moderate	11.416 \| good	50.787 \| good	15.529 \| good	1.545 \| good	5.684 \| good	0.218 \| good
2025-12-16T17:00:00.000Z	54 \| moderate	10.884 \| good	47.899 \| good	18.506 \| good	1.658 \| good	5.313 \| good	0.217 \| good
2025-12-16T18:00:00.000Z	54 \| moderate	11.353 \| good	50.382 \| good	19.568 \| good	1.771 \| good	4.941 \| good	0.216 \| good
2025-12-16T19:00:00.000Z	54 \| moderate	11.299 \| good	49.848 \| good	21.043 \| good	1.87 \| good	5.505 \| good	0.214 \| good
2025-12-16T20:00:00.000Z	54 \| moderate	11.413 \| good	50.719 \| good	22.047 \| good	1.969 \| good	6.069 \| good	0.211 \| good
2025-12-16T21:00:00.000Z	54 \| moderate	10.755 \| good	47.782 \| good	23.294 \| good	2.068 \| good	6.633 \| good	0.209 \| good
2025-12-16T22:00:00.000Z	52 \| moderate	9.673 \| good	42.896 \| good	24.026 \| good	2.097 \| good	7.261 \| good	0.209 \| good
2025-12-16T23:00:00.000Z	44 \| good	8.485 \| good	36.876 \| good	22.738 \| good	2.126 \| good	7.89 \| good	0.209 \| good
2025-12-17T00:00:00.000Z	44 \| good	7.639 \| good	33.597 \| good	18.576 \| good	2.155 \| good	8.518 \| good	0.208 \| good
2025-12-17T01:00:00.000Z	44 \| good	7.559 \| good	33.398 \| good	16.996 \| good	2.127 \| good	8.02 \| good	0.205 \| good
2025-12-17T02:00:00.000Z	44 \| good	7.698 \| good	33.819 \| good	15.123 \| good	2.098 \| good	7.521 \| good	0.202 \| good
2025-12-17T03:00:00.000Z	44 \| good	8.005 \| good	34.879 \| good	15.04 \| good	2.07 \| good	7.023 \| good	0.198 \| good
2025-12-17T04:00:00.000Z	44 \| good	8.089 \| good	35.708 \| good	14.916 \| good	1.96 \| good	6.389 \| good	0.193 \| good
2025-12-17T05:00:00.000Z	44 \| good	8.113 \| good	35.735 \| good	14.686 \| good	1.85 \| good	5.755 \| good	0.187 \| good
2025-12-17T06:00:00.000Z	49 \| good	8.858 \| good	39.101 \| good	14.789 \| good	1.739 \| good	5.121 \| good	0.181 \| good
2025-12-17T07:00:00.000Z	49 \| good	8.667 \| good	38.178 \| good	15.398 \| good	1.686 \| good	4.582 \| good	0.175 \| good
2025-12-17T08:00:00.000Z	38 \| good	7.481 \| good	33.04 \| good	17.744 \| good	1.633 \| good	4.043 \| good	0.169 \| good
2025-12-17T09:00:00.000Z	38 \| good	7.17 \| good	31.898 \| good	20.057 \| good	1.58 \| good	3.505 \| good	0.163 \| good
2025-12-17T10:00:00.000Z	38 \| good	7.263 \| good	32.074 \| good	19.8 \| good	1.516 \| good	3.531 \| good	0.163 \| good
2025-12-17T11:00:00.000Z	38 \| good	7.013 \| good	31.096 \| good	19.425 \| good	1.453 \| good	3.558 \| good	0.163 \| good
2025-12-17T12:00:00.000Z	38 \| good	6.692 \| good	29.77 \| good	19.234 \| good	1.389 \| good	3.584 \| good	0.163 \| good
2025-12-17T13:00:00.000Z	38 \| good	6.672 \| good	29.758 \| good	19.549 \| good	1.238 \| good	3.696 \| good	0.169 \| good
2025-12-17T14:00:00.000Z	38 \| good	7.381 \| good	32.728 \| good	20.271 \| good	1.087 \| good	3.808 \| good	0.174 \| good
2025-12-17T15:00:00.000Z	49 \| good	8.674 \| good	37.823 \| good	20.371 \| good	0.937 \| good	3.92 \| good	0.18 \| good
2025-12-17T16:00:00.000Z	52 \| moderate	9.638 \| good	42.862 \| good	20.057 \| good	0.824 \| good	3.64 \| good	0.184 \| good
2025-12-17T17:00:00.000Z	52 \| moderate	10.007 \| good	44.657 \| good	22.174 \| good	0.711 \| good	3.361 \| good	0.188 \| good
2025-12-17T18:00:00.000Z	54 \| moderate	10.558 \| good	46.782 \| good	24.201 \| good	0.598 \| good	3.081 \| good	0.192 \| good
2025-12-17T19:00:00.000Z	54 \| moderate	10.534 \| good	46.551 \| good	26.185 \| good	0.589 \| good	4.015 \| good	0.199 \| good
2025-12-17T20:00:00.000Z	54 \| moderate	10.814 \| good	47.782 \| good	26.097 \| good	0.581 \| good	4.95 \| good	0.206 \| good
2025-12-17T21:00:00.000Z	52 \| moderate	10.113 \| good	44.782 \| good	24.044 \| good	0.572 \| good	5.884 \| good	0.213 \| good
2025-12-17T22:00:00.000Z	52 \| moderate	10.084 \| good	44.782 \| good	20.586 \| good	0.649 \| good	8.392 \| good	0.228 \| good
2025-12-17T23:00:00.000Z	52 \| moderate	9.824 \| good	43.672 \| good	17.746 \| good	0.726 \| good	10.9 \| good	0.242 \| good
2025-12-18T00:00:00.000Z	71 \| moderate	20.376 \| fine	20.547 \| good	18.221 \| good	0.813 \| good	13.517 \| good	0.257 \| 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 05:00:00 on 2025-12-15.

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 2025-12-15.

What is the AQI in Marion, Ohio right now?

As of now, the AQI in Marion, Ohio is 38, 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 6.783 μg/m³.

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

The PM₁₀ concentration in Marion, Ohio is 24.241 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 0.246 ppm.

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

Currently, Marion, Ohio has a sulfur dioxide (SO₂) concentration of 2.207 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 20.188 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 13.645 ppb.

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