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

The current PM10 concentration at Norwalk, Ohio is 23.67 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Norwalk, Ohio is 0.595 ppb.

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

The current ozone (O3) concentration at Norwalk, Ohio is 10.225 ppm.

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

The current nitrogen dioxide (NO2) concentration at Norwalk, Ohio is 3.906 ppb.

Norwalk, Ohio live air quality index now

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

The current PM2.5 concentration at Norwalk, Ohio is 5.384 μg/m3.

Stay updated with real-time air quality in Norwalk, 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

Norwalk, Ohio

Last updated: ... (Local time)

Major air pollutants in Norwalk, Ohio

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

5.38 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

23.67 μg/m³

155

255

425

605+

Ozone (O₃)

10.22 ppb

201

201+

Sulfur Dioxide (SO₂)

0.59 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

3.91 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.30 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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Norwalk, Ohio

Scroll To Air Quality Map

Track live Norwalk, Ohio air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-09-05T13:00:00.000Z	33 \| good	6.254 \| good	25.767 \| good	21.597 \| good	0.816 \| good	4.621 \| good	0.283 \| good
2026-09-05T14:00:00.000Z	33 \| good	6.295 \| good	26.677 \| good	25.413 \| good	0.782 \| good	4.134 \| good	0.25 \| good
2026-09-05T15:00:00.000Z	38 \| good	6.521 \| good	24.836 \| good	31.105 \| good	0.934 \| good	4.661 \| good	0.24 \| good
2026-09-05T16:00:00.000Z	33 \| good	6.112 \| good	25.298 \| good	30.929 \| good	1.873 \| good	3.401 \| good	0.2 \| good
2026-09-05T17:00:00.000Z	38 \| good	6.894 \| good	26.599 \| good	32.912 \| good	0.898 \| good	2.716 \| good	0.181 \| good
2026-09-05T18:00:00.000Z	38 \| good	6.587 \| good	30.655 \| good	32.048 \| good	1.046 \| good	2.032 \| good	0.18 \| good
2026-09-05T19:00:00.000Z	38 \| good	6.688 \| good	26.928 \| good	32.639 \| good	0.708 \| good	2.502 \| good	0.208 \| good
2026-09-05T20:00:00.000Z	33 \| good	6.276 \| good	23.335 \| good	33.488 \| good	0.572 \| good	2.265 \| good	0.194 \| good
2026-09-05T21:00:00.000Z	29 \| good	4.866 \| good	19.035 \| good	31.075 \| good	0.632 \| good	2.37 \| good	0.19 \| good
2026-09-05T22:00:00.000Z	33 \| good	5.507 \| good	20.345 \| good	30.412 \| good	0.576 \| good	2.022 \| good	0.207 \| good
2026-09-05T23:00:00.000Z	27 \| good	4.979 \| good	15.405 \| good	29.137 \| good	1.412 \| good	2.373 \| good	0.232 \| good
2026-09-06T00:00:00.000Z	29 \| good	4.819 \| good	20.518 \| good	31.446 \| good	1.251 \| good	2.408 \| good	0.192 \| good
2026-09-06T01:00:00.000Z	29 \| good	4.821 \| good	18.837 \| good	30.701 \| good	0.703 \| good	2.967 \| good	0.193 \| good
2026-09-06T02:00:00.000Z	27 \| good	5.428 \| good	23.912 \| good	26.446 \| good	0.583 \| good	3.948 \| good	0.215 \| good
2026-09-06T03:00:00.000Z	33 \| good	6.079 \| good	26.73 \| good	22.702 \| good	0.848 \| good	3.273 \| good	0.173 \| good
2026-09-06T04:00:00.000Z	38 \| good	6.6 \| good	21.747 \| good	19.437 \| good	0.604 \| good	4.105 \| good	0.234 \| good
2026-09-06T05:00:00.000Z	38 \| good	7.456 \| good	22.687 \| good	18.703 \| good	0.569 \| good	5.631 \| good	0.235 \| good
2026-09-06T06:00:00.000Z	33 \| good	6.312 \| good	21.6 \| good	15.695 \| good	0.667 \| good	7.635 \| good	0.257 \| good
2026-09-06T07:00:00.000Z	38 \| good	6.879 \| good	25.542 \| good	11.468 \| good	0.682 \| good	5.881 \| good	0.235 \| good
2026-09-06T08:00:00.000Z	33 \| good	6.379 \| good	22.247 \| good	16.066 \| good	0.742 \| good	7.138 \| good	0.235 \| good
2026-09-06T09:00:00.000Z	38 \| good	6.654 \| good	23.564 \| good	12.078 \| good	0.622 \| good	7.718 \| good	0.235 \| good
2026-09-06T10:00:00.000Z	44 \| good	7.803 \| good	28.067 \| good	14.481 \| good	0.453 \| good	7.635 \| good	0.279 \| good
2026-09-06T11:00:00.000Z	52 \| moderate	10.416 \| good	30.108 \| good	16.845 \| good	0.608 \| good	7.598 \| good	0.279 \| good
2026-09-06T12:00:00.000Z	49 \| good	9.293 \| good	30.071 \| good	15.443 \| good	0.559 \| good	5.723 \| good	0.313 \| good
2026-09-06T13:00:00.000Z	52 \| moderate	9.679 \| good	29.907 \| good	18.113 \| good	0.675 \| good	5.504 \| good	0.327 \| good
2026-09-06T14:00:00.000Z	52 \| moderate	9.698 \| good	28.451 \| good	25.94 \| good	1.02 \| good	4.346 \| good	0.283 \| good
2026-09-06T15:00:00.000Z	38 \| good	6.525 \| good	24.826 \| good	24.604 \| good	0.863 \| good	2.882 \| good	0.236 \| good
2026-09-06T16:00:00.000Z	33 \| good	5.626 \| good	24.614 \| good	26.218 \| good	0.979 \| good	1.971 \| good	0.213 \| good
2026-09-06T17:00:00.000Z	33 \| good	5.856 \| good	19.269 \| good	28.541 \| good	1.462 \| good	2.288 \| good	0.212 \| good
2026-09-06T18:00:00.000Z	33 \| good	5.822 \| good	25.59 \| good	30.855 \| good	1.291 \| good	2.156 \| good	0.211 \| good
2026-09-06T19:00:00.000Z	30 \| good	5.216 \| good	25.04 \| good	31.648 \| good	1.463 \| good	2.225 \| good	0.24 \| good
2026-09-06T20:00:00.000Z	31 \| good	3.982 \| good	16.353 \| good	32.511 \| good	1.379 \| good	2.101 \| good	0.247 \| good
2026-09-06T21:00:00.000Z	26 \| good	4.495 \| good	14.226 \| good	28.493 \| good	0.956 \| good	1.836 \| good	0.21 \| good
2026-09-06T22:00:00.000Z	26 \| good	3.884 \| good	14.575 \| good	28.4 \| good	1.005 \| good	2.169 \| good	0.211 \| good
2026-09-06T23:00:00.000Z	27 \| good	4.206 \| good	13.968 \| good	29.183 \| good	0.891 \| good	2.539 \| good	0.248 \| good
2026-09-07T00:00:00.000Z	23 \| good	3.968 \| good	17.863 \| good	25.365 \| good	0.673 \| good	2.368 \| good	0.252 \| good
2026-09-07T01:00:00.000Z	24 \| good	4.222 \| good	16.462 \| good	26.43 \| good	0.527 \| good	2.758 \| good	0.227 \| good
2026-09-07T02:00:00.000Z	27 \| good	4.878 \| good	19.412 \| good	24.341 \| good	0.553 \| good	2.971 \| good	0.227 \| good
2026-09-07T03:00:00.000Z	38 \| good	7.004 \| good	31.316 \| good	20.878 \| good	0.786 \| good	2.977 \| good	0.165 \| good
2026-09-07T04:00:00.000Z	33 \| good	6.17 \| good	22.225 \| good	19.603 \| good	0.517 \| good	3.08 \| good	0.25 \| good
2026-09-07T05:00:00.000Z	33 \| good	6.337 \| good	26.718 \| good	18.411 \| good	0.555 \| good	2.942 \| good	0.229 \| good
2026-09-07T06:00:00.000Z	38 \| good	6.604 \| good	27.329 \| good	16.999 \| good	0.547 \| good	2.672 \| good	0.247 \| good
2026-09-07T07:00:00.000Z	38 \| good	7.187 \| good	26.337 \| good	14.437 \| good	0.52 \| good	2.606 \| good	0.248 \| good
2026-09-07T08:00:00.000Z	33 \| good	5.939 \| good	20.977 \| good	12.455 \| good	0.506 \| good	2.491 \| good	0.261 \| good
2026-09-07T09:00:00.000Z	27 \| good	5.446 \| good	23.658 \| good	13.285 \| good	0.536 \| good	3.633 \| good	0.238 \| good
2026-09-07T10:00:00.000Z	33 \| good	6.283 \| good	21.521 \| good	11.57 \| good	0.516 \| good	3.821 \| good	0.238 \| good
2026-09-07T11:00:00.000Z	27 \| good	5.352 \| good	23.824 \| good	13.789 \| good	0.67 \| good	4.622 \| good	0.238 \| good
2026-09-07T12:00:00.000Z	27 \| good	5.384 \| good	23.67 \| good	10.225 \| good	0.595 \| good	3.906 \| good	0.296 \| good
2026-09-07T12:00:00.000Z	27 \| good	5.384 \| good	23.67 \| good	10.225 \| good	0.595 \| good	3.906 \| good	0.296 \| good
2026-09-07T13:00:00.000Z	33 \| good	6.125 \| good	27.181 \| good	13.203 \| good	0.618 \| good	3.54 \| good	0.18 \| good
2026-09-07T14:00:00.000Z	33 \| good	6.201 \| good	27.671 \| good	19.374 \| good	0.661 \| good	2.822 \| good	0.177 \| good
2026-09-07T15:00:00.000Z	33 \| good	6.427 \| good	28.671 \| good	27.19 \| good	0.635 \| good	1.547 \| good	0.158 \| good
2026-09-07T16:00:00.000Z	33 \| good	6.254 \| good	27.73 \| good	33.109 \| good	0.611 \| good	0.918 \| good	0.149 \| good
2026-09-07T17:00:00.000Z	34 \| good	5.904 \| good	26.28 \| good	36.639 \| good	0.585 \| good	0.677 \| good	0.146 \| good
2026-09-07T18:00:00.000Z	37 \| good	5.69 \| good	24.525 \| good	39.864 \| good	0.568 \| good	0.584 \| good	0.145 \| good
2026-09-07T19:00:00.000Z	39 \| good	5.661 \| good	24.255 \| good	42.029 \| good	0.565 \| good	0.568 \| good	0.146 \| good
2026-09-07T20:00:00.000Z	40 \| good	4.998 \| good	21.895 \| good	42.989 \| good	0.576 \| good	0.598 \| good	0.145 \| good
2026-09-07T21:00:00.000Z	36 \| good	4.064 \| good	17.884 \| good	38.676 \| good	0.601 \| good	0.679 \| good	0.145 \| good
2026-09-07T22:00:00.000Z	30 \| good	2.208 \| good	8.98 \| good	31.654 \| good	0.638 \| good	0.875 \| good	0.145 \| good
2026-09-07T23:00:00.000Z	26 \| good	1.709 \| good	7.136 \| good	28.117 \| good	0.688 \| good	1.395 \| good	0.148 \| good
2026-09-08T00:00:00.000Z	24 \| good	1.388 \| good	5.586 \| good	25.503 \| good	0.709 \| good	2.42 \| good	0.154 \| good
2026-09-08T01:00:00.000Z	21 \| good	1.976 \| good	7.927 \| good	23.216 \| good	0.731 \| good	3.147 \| good	0.16 \| good
2026-09-08T02:00:00.000Z	27 \| good	4.624 \| good	20.201 \| good	18.375 \| good	0.746 \| good	3.646 \| good	0.163 \| good
2026-09-08T03:00:00.000Z	38 \| good	7.473 \| good	33.176 \| good	15.699 \| good	0.734 \| good	4.253 \| good	0.169 \| good
2026-09-08T04:00:00.000Z	38 \| good	7.382 \| good	32.294 \| good	15.22 \| good	0.693 \| good	4.885 \| good	0.176 \| good
2026-09-08T05:00:00.000Z	38 \| good	6.626 \| good	29.649 \| good	15.376 \| good	0.651 \| good	5.493 \| good	0.182 \| good
2026-09-08T06:00:00.000Z	33 \| good	5.567 \| good	23.804 \| good	14.179 \| good	0.621 \| good	6.041 \| good	0.189 \| good
2026-09-08T07:00:00.000Z	33 \| good	5.712 \| good	24.6 \| good	11.965 \| good	0.596 \| good	6.426 \| good	0.193 \| good
2026-09-08T08:00:00.000Z	33 \| good	6.492 \| good	29.089 \| good	11.053 \| good	0.583 \| good	6.571 \| good	0.196 \| good
2026-09-08T09:00:00.000Z	33 \| good	6.245 \| good	27.548 \| good	10.711 \| good	0.593 \| good	6.487 \| good	0.195 \| good
2026-09-08T10:00:00.000Z	33 \| good	6.053 \| good	26.977 \| good	10.689 \| good	0.633 \| good	6.287 \| good	0.193 \| good
2026-09-08T11:00:00.000Z	33 \| good	6.384 \| good	28.417 \| good	11.829 \| good	0.696 \| good	6.214 \| good	0.191 \| good
2026-09-08T12:00:00.000Z	38 \| good	7.336 \| good	32.369 \| good	11.576 \| good	0.743 \| good	5.815 \| good	0.193 \| good
2026-09-08T13:00:00.000Z	49 \| good	8.679 \| good	38.135 \| good	13.826 \| good	0.803 \| good	5.084 \| good	0.198 \| good
2026-09-08T14:00:00.000Z	49 \| good	9.118 \| good	41 \| good	22.564 \| good	0.867 \| good	4.063 \| good	0.2 \| good
2026-09-08T15:00:00.000Z	49 \| good	9.147 \| good	40.944 \| good	32.468 \| good	0.811 \| good	2.507 \| good	0.198 \| good
2026-09-08T16:00:00.000Z	49 \| good	8.888 \| good	39.245 \| good	39.061 \| good	0.659 \| good	1.531 \| good	0.195 \| good
2026-09-08T17:00:00.000Z	49 \| good	9.22 \| good	41.117 \| good	41.316 \| good	0.582 \| good	1.086 \| good	0.192 \| good
2026-09-08T18:00:00.000Z	52 \| moderate	9.51 \| good	42.396 \| good	42.434 \| good	0.488 \| good	0.896 \| good	0.187 \| good
2026-09-08T19:00:00.000Z	49 \| good	9.34 \| good	41.997 \| good	41.739 \| good	0.412 \| good	0.851 \| good	0.182 \| good
2026-09-08T20:00:00.000Z	54 \| moderate	11.1 \| good	48.967 \| good	36.966 \| good	0.398 \| good	0.865 \| good	0.18 \| good
2026-09-08T21:00:00.000Z	56 \| moderate	11.858 \| good	52.916 \| good	38.676 \| good	0.414 \| good	0.939 \| good	0.179 \| good
2026-09-08T22:00:00.000Z	54 \| moderate	11.497 \| good	50.852 \| good	38.887 \| good	0.399 \| good	1.174 \| good	0.18 \| good
2026-09-08T23:00:00.000Z	54 \| moderate	11.174 \| good	49.237 \| good	35.948 \| good	0.396 \| good	1.685 \| good	0.185 \| good
2026-09-09T00:00:00.000Z	52 \| moderate	9.523 \| good	42.441 \| good	31.684 \| good	0.385 \| good	2.528 \| good	0.193 \| good
2026-09-09T01:00:00.000Z	49 \| good	9.009 \| good	40.008 \| good	28.534 \| good	0.368 \| good	3.175 \| good	0.201 \| good
2026-09-09T02:00:00.000Z	44 \| good	7.59 \| good	33.379 \| good	26.941 \| good	0.352 \| good	3.324 \| good	0.203 \| good
2026-09-09T03:00:00.000Z	38 \| good	7.218 \| good	31.938 \| good	26.978 \| good	0.357 \| good	3.291 \| good	0.203 \| good
2026-09-09T04:00:00.000Z	38 \| good	7.118 \| good	31.639 \| good	24.697 \| good	0.396 \| good	3.385 \| good	0.204 \| good
2026-09-09T05:00:00.000Z	44 \| good	8.056 \| good	35.114 \| good	23.456 \| good	0.446 \| good	3.508 \| good	0.205 \| good
2026-09-09T06:00:00.000Z	44 \| good	8.281 \| good	36.202 \| good	21.773 \| good	0.487 \| good	3.544 \| good	0.206 \| good
2026-09-09T07:00:00.000Z	38 \| good	6.812 \| good	30 \| good	22.026 \| good	0.519 \| good	3.503 \| good	0.206 \| good
2026-09-09T08:00:00.000Z	33 \| good	6.228 \| good	27.763 \| good	23.074 \| good	0.543 \| good	3.472 \| good	0.205 \| good
2026-09-09T09:00:00.000Z	38 \| good	6.601 \| good	29.586 \| good	21.523 \| good	0.565 \| good	3.444 \| good	0.205 \| good
2026-09-09T10:00:00.000Z	44 \| good	7.502 \| good	33.034 \| good	19.944 \| good	0.577 \| good	3.389 \| good	0.204 \| good
2026-09-09T11:00:00.000Z	38 \| good	6.667 \| good	29.593 \| good	18.269 \| good	0.567 \| good	3.398 \| good	0.204 \| good
2026-09-09T12:00:00.000Z	29 \| good	4.422 \| good	4.596 \| good	30.682 \| good	0.528 \| good	3.314 \| good	0.204 \| good

Norwalk

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Norwalk, 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 Norwalk, Ohio updated?

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

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

The worst air quality in Norwalk, Ohio in the last 24 hours was observed at 02:00:00 on 2026-09-06.

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

In the last 24 hrs, the best air quality in Norwalk, Ohio was observed at 12:00:00 on 2026-09-07.

What is the current air quality in Norwalk, Ohio?

The current air quality in Norwalk, Ohio is 27, categorized as Good based on real-time data.

What pollutant is the most common in Norwalk, Ohio?

The most common pollutant in Norwalk, Ohio is PM2.5.

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

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

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

The current PM_2.5 concentration at Norwalk, Ohio is 5.384 μg/m³.

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

The current PM₁₀ concentration at Norwalk, Ohio is 23.67 μg/m³.

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

The current carbon monoxide (CO) concentration at Norwalk, Ohio is 0.296 ppm.

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

The current sulfur dioxide (SO₂) concentration at Norwalk, Ohio is 0.595 ppb.

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

The current ozone (O₃) concentration at Norwalk, Ohio is 10.225 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Norwalk, Ohio is 3.906 ppb.

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