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

The current PM10 concentration at Norwalk, Ohio is 9.008 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Norwalk, Ohio is 0.609 ppb.

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

The current ozone (O3) concentration at Norwalk, Ohio is 21.933 ppm.

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

The current nitrogen dioxide (NO2) concentration at Norwalk, Ohio is 5.923 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 2.677 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)

2.68 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

9.01 μg/m³

155

255

425

605+

Ozone (O₃)

21.93 ppb

201

201+

Sulfur Dioxide (SO₂)

0.61 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

5.92 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.18 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

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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
2025-10-20T16:00:00.000Z	27 \| good	4.629 \| good	19.211 \| good	20.486 \| good	0.737 \| good	4.859 \| good	0.169 \| good
2025-10-20T17:00:00.000Z	27 \| good	4.88 \| good	21.374 \| good	23.086 \| good	0.652 \| good	4.091 \| good	0.145 \| good
2025-10-20T18:00:00.000Z	27 \| good	4.989 \| good	20.285 \| good	26.499 \| good	0.672 \| good	3.699 \| good	0.129 \| good
2025-10-20T19:00:00.000Z	33 \| good	5.591 \| good	25.467 \| good	29.756 \| good	0.667 \| good	3.479 \| good	0.128 \| good
2025-10-20T20:00:00.000Z	33 \| good	5.541 \| good	23.881 \| good	32.417 \| good	0.77 \| good	3.559 \| good	0.144 \| good
2025-10-20T21:00:00.000Z	30 \| good	4.516 \| good	20.661 \| good	31.63 \| good	1.155 \| good	3.07 \| good	0.143 \| good
2025-10-20T22:00:00.000Z	30 \| good	5.343 \| good	20.308 \| good	32.122 \| good	1.729 \| good	3.723 \| good	0.164 \| good
2025-10-20T23:00:00.000Z	29 \| good	5.217 \| good	21.325 \| good	31.356 \| good	0.671 \| good	3.161 \| good	0.164 \| good
2025-10-21T00:00:00.000Z	28 \| good	5.091 \| good	25.771 \| good	30.285 \| good	0.673 \| good	5.729 \| good	0.205 \| good
2025-10-21T01:00:00.000Z	33 \| good	5.637 \| good	25.16 \| good	27.186 \| good	0.831 \| good	7.069 \| good	0.262 \| good
2025-10-21T02:00:00.000Z	33 \| good	6.018 \| good	26.009 \| good	24.504 \| good	0.848 \| good	9.054 \| good	0.327 \| good
2025-10-21T03:00:00.000Z	54 \| moderate	10.943 \| good	48.258 \| good	22.38 \| good	1.023 \| good	5.417 \| good	0.175 \| good
2025-10-21T04:00:00.000Z	38 \| good	6.595 \| good	32.093 \| good	22.451 \| good	1.22 \| good	9.176 \| good	0.181 \| good
2025-10-21T05:00:00.000Z	27 \| good	4.776 \| good	20.272 \| good	19.318 \| good	2.641 \| good	7.823 \| good	0.145 \| good
2025-10-21T06:00:00.000Z	22 \| good	4.147 \| good	15.123 \| good	20.146 \| good	2.781 \| good	6.087 \| good	0.161 \| good
2025-10-21T07:00:00.000Z	33 \| good	6.383 \| good	18.274 \| good	21.53 \| good	1.579 \| good	5.324 \| good	0.157 \| good
2025-10-21T08:00:00.000Z	27 \| good	5.281 \| good	16.013 \| good	22.762 \| good	3.168 \| good	5.083 \| good	0.132 \| good
2025-10-21T09:00:00.000Z	33 \| good	6.02 \| good	28.675 \| good	20.04 \| good	1.307 \| good	4.823 \| good	0.17 \| good
2025-10-21T10:00:00.000Z	22 \| good	3.817 \| good	16.287 \| good	22.948 \| good	1.235 \| good	4.628 \| good	0.148 \| good
2025-10-21T11:00:00.000Z	22 \| good	3.676 \| good	15.061 \| good	23.816 \| good	1.398 \| good	5.575 \| good	0.168 \| good
2025-10-21T12:00:00.000Z	22 \| good	3.647 \| good	15.013 \| good	20.363 \| good	0.945 \| good	7.795 \| good	0.298 \| good
2025-10-21T13:00:00.000Z	27 \| good	5.251 \| good	18.658 \| good	22.577 \| good	0.93 \| good	8.611 \| good	0.19 \| good
2025-10-21T14:00:00.000Z	27 \| good	5.246 \| good	19.365 \| good	26.005 \| good	0.928 \| good	8.604 \| good	0.184 \| good
2025-10-21T15:00:00.000Z	27 \| good	5.222 \| good	25.715 \| good	27.38 \| good	0.71 \| good	6.233 \| good	0.206 \| good
2025-10-21T16:00:00.000Z	27 \| good	4.512 \| good	20.043 \| good	26.846 \| good	1.035 \| good	4.785 \| good	0.133 \| good
2025-10-21T17:00:00.000Z	26 \| good	3.867 \| good	15.347 \| good	28.405 \| good	0.927 \| good	4.005 \| good	0.132 \| good
2025-10-21T18:00:00.000Z	29 \| good	3.709 \| good	14.019 \| good	30.943 \| good	0.792 \| good	3.276 \| good	0.111 \| good
2025-10-21T19:00:00.000Z	31 \| good	3.374 \| good	13.06 \| good	33.182 \| good	1.14 \| good	3.082 \| good	0.11 \| good
2025-10-21T20:00:00.000Z	33 \| good	2.733 \| good	10.762 \| good	35.729 \| good	1.511 \| good	3.383 \| good	0.121 \| good
2025-10-21T21:00:00.000Z	33 \| good	3.259 \| good	13.755 \| good	36.271 \| good	0.703 \| good	3.407 \| good	0.146 \| good
2025-10-21T22:00:00.000Z	32 \| good	3.762 \| good	14.31 \| good	34.822 \| good	0.697 \| good	3.891 \| good	0.147 \| good
2025-10-21T23:00:00.000Z	31 \| good	3.027 \| good	12.583 \| good	32.91 \| good	0.772 \| good	3.859 \| good	0.154 \| good
2025-10-22T00:00:00.000Z	32 \| good	2.105 \| good	8.823 \| good	34.631 \| good	1.072 \| good	2.661 \| good	0.132 \| good
2025-10-22T01:00:00.000Z	30 \| good	3.979 \| good	16.519 \| good	31.503 \| good	0.759 \| good	4.651 \| good	0.155 \| good
2025-10-22T02:00:00.000Z	27 \| good	3.756 \| good	13.683 \| good	28.937 \| good	1.064 \| good	5.014 \| good	0.172 \| good
2025-10-22T03:00:00.000Z	30 \| good	2.93 \| good	12.048 \| good	31.503 \| good	0.603 \| good	2.264 \| good	0.132 \| good
2025-10-22T04:00:00.000Z	26 \| good	2.553 \| good	10.628 \| good	27.837 \| good	0.729 \| good	2.768 \| good	0.118 \| good
2025-10-22T05:00:00.000Z	25 \| good	3.29 \| good	13.251 \| good	26.683 \| good	0.585 \| good	2.932 \| good	0.113 \| good
2025-10-22T06:00:00.000Z	22 \| good	2.315 \| good	9.455 \| good	24.197 \| good	0.547 \| good	2.546 \| good	0.111 \| good
2025-10-22T07:00:00.000Z	22 \| good	2.494 \| good	10.965 \| good	23.567 \| good	0.56 \| good	2.71 \| good	0.109 \| good
2025-10-22T08:00:00.000Z	20 \| good	2.452 \| good	9.754 \| good	21.778 \| good	0.547 \| good	2.846 \| good	0.117 \| good
2025-10-22T09:00:00.000Z	20 \| good	2.937 \| good	9.81 \| good	22.377 \| good	0.561 \| good	2.884 \| good	0.11 \| good
2025-10-22T10:00:00.000Z	20 \| good	2.55 \| good	9.831 \| good	21.826 \| good	0.572 \| good	2.507 \| good	0.108 \| good
2025-10-22T11:00:00.000Z	20 \| good	2.957 \| good	12.289 \| good	21.615 \| good	0.529 \| good	3.226 \| good	0.127 \| good
2025-10-22T12:00:00.000Z	20 \| good	3.05 \| good	11.534 \| good	21.594 \| good	0.949 \| good	3.556 \| good	0.148 \| good
2025-10-22T13:00:00.000Z	20 \| good	2.641 \| good	9.942 \| good	21.567 \| good	0.648 \| good	5.103 \| good	0.145 \| good
2025-10-22T14:00:00.000Z	20 \| good	2.677 \| good	9.008 \| good	21.933 \| good	0.609 \| good	5.923 \| good	0.182 \| good
2025-10-22T15:00:00.000Z	20 \| good	2.677 \| good	9.008 \| good	21.933 \| good	0.609 \| good	5.923 \| good	0.182 \| good
2025-10-22T16:00:00.000Z	19 \| good	2.145 \| good	8.8 \| good	20.938 \| good	0.288 \| good	1.945 \| good	0.141 \| good
2025-10-22T17:00:00.000Z	19 \| good	1.42 \| good	5.907 \| good	21.255 \| good	0.342 \| good	2.02 \| good	0.14 \| good
2025-10-22T18:00:00.000Z	20 \| good	1.484 \| good	6.077 \| good	21.871 \| good	0.396 \| good	2.095 \| good	0.139 \| good
2025-10-22T19:00:00.000Z	20 \| good	1.482 \| good	6.077 \| good	22.05 \| good	0.416 \| good	2.247 \| good	0.138 \| good
2025-10-22T20:00:00.000Z	19 \| good	1.619 \| good	6.856 \| good	21.094 \| good	0.437 \| good	2.399 \| good	0.137 \| good
2025-10-22T21:00:00.000Z	19 \| good	1.007 \| good	4.076 \| good	20.555 \| good	0.458 \| good	2.552 \| good	0.136 \| good
2025-10-22T22:00:00.000Z	19 \| good	0.752 \| good	2.775 \| good	21.107 \| good	0.448 \| good	2.735 \| good	0.136 \| good
2025-10-22T23:00:00.000Z	19 \| good	1.068 \| good	4.209 \| good	21.384 \| good	0.439 \| good	2.918 \| good	0.136 \| good
2025-10-23T00:00:00.000Z	19 \| good	1.456 \| good	5.88 \| good	21.269 \| good	0.429 \| good	3.101 \| good	0.136 \| good
2025-10-23T01:00:00.000Z	19 \| good	1.6 \| good	6.738 \| good	19.854 \| good	0.433 \| good	2.969 \| good	0.135 \| good
2025-10-23T02:00:00.000Z	19 \| good	1.872 \| good	7.938 \| good	20.046 \| good	0.436 \| good	2.837 \| good	0.135 \| good
2025-10-23T03:00:00.000Z	19 \| good	1.556 \| good	6.068 \| good	20.911 \| good	0.44 \| good	2.705 \| good	0.134 \| good
2025-10-23T04:00:00.000Z	19 \| good	1.353 \| good	5.569 \| good	20.798 \| good	0.441 \| good	2.59 \| good	0.133 \| good
2025-10-23T05:00:00.000Z	19 \| good	1.056 \| good	4.071 \| good	20.77 \| good	0.443 \| good	2.475 \| good	0.133 \| good
2025-10-23T06:00:00.000Z	19 \| good	0.838 \| good	3.095 \| good	21.033 \| good	0.445 \| good	2.36 \| good	0.132 \| good
2025-10-23T07:00:00.000Z	20 \| good	0.491 \| good	2 \| good	21.65 \| good	0.417 \| good	2.215 \| good	0.132 \| good
2025-10-23T08:00:00.000Z	19 \| good	0.392 \| good	1.329 \| good	21.129 \| good	0.389 \| good	2.07 \| good	0.132 \| good
2025-10-23T09:00:00.000Z	19 \| good	0.384 \| good	1.298 \| good	20.841 \| good	0.362 \| good	1.925 \| good	0.131 \| good
2025-10-23T10:00:00.000Z	19 \| good	0.639 \| good	2.095 \| good	19.816 \| good	0.328 \| good	1.915 \| good	0.132 \| good
2025-10-23T11:00:00.000Z	17 \| good	0.286 \| good	1.068 \| good	17.695 \| good	0.294 \| good	1.905 \| good	0.133 \| good
2025-10-23T12:00:00.000Z	16 \| good	0.419 \| good	1.701 \| good	17.101 \| good	0.26 \| good	1.896 \| good	0.134 \| good
2025-10-23T13:00:00.000Z	17 \| good	0.643 \| good	2.234 \| good	17.61 \| good	0.235 \| good	1.644 \| good	0.133 \| good
2025-10-23T14:00:00.000Z	19 \| good	0.854 \| good	3.168 \| good	19.823 \| good	0.21 \| good	1.393 \| good	0.132 \| good
2025-10-23T15:00:00.000Z	23 \| good	0.799 \| good	3 \| good	25.097 \| good	0.185 \| good	1.142 \| good	0.13 \| good
2025-10-23T16:00:00.000Z	27 \| good	0.576 \| good	2 \| good	29.398 \| good	0.186 \| good	1.038 \| good	0.131 \| good
2025-10-23T17:00:00.000Z	28 \| good	0.398 \| good	1.471 \| good	29.937 \| good	0.187 \| good	0.934 \| good	0.133 \| good
2025-10-23T18:00:00.000Z	27 \| good	0.469 \| good	1.938 \| good	28.664 \| good	0.188 \| good	0.83 \| good	0.134 \| good
2025-10-23T19:00:00.000Z	27 \| good	0.531 \| good	2 \| good	28.532 \| good	0.178 \| good	0.939 \| good	0.134 \| good
2025-10-23T20:00:00.000Z	28 \| good	0.285 \| good	1 \| good	29.586 \| good	0.167 \| good	1.048 \| good	0.134 \| good
2025-10-23T21:00:00.000Z	27 \| good	0.546 \| good	1.905 \| good	29.365 \| good	0.157 \| good	1.157 \| good	0.135 \| good
2025-10-23T22:00:00.000Z	26 \| good	0.64 \| good	2 \| good	28.317 \| good	0.181 \| good	1.857 \| good	0.139 \| good
2025-10-23T23:00:00.000Z	23 \| good	0.654 \| good	2 \| good	25.166 \| good	0.205 \| good	2.557 \| good	0.143 \| good
2025-10-24T00:00:00.000Z	22 \| good	0.274 \| good	0.892 \| good	24.035 \| good	0.229 \| good	3.257 \| good	0.146 \| good
2025-10-24T01:00:00.000Z	19 \| good	0.993 \| good	3.843 \| good	21.293 \| good	0.242 \| good	3.263 \| good	0.145 \| good
2025-10-24T02:00:00.000Z	19 \| good	0.956 \| good	3.766 \| good	20.263 \| good	0.255 \| good	3.268 \| good	0.144 \| good
2025-10-24T03:00:00.000Z	17 \| good	0.531 \| good	2.058 \| good	18.495 \| good	0.268 \| good	3.273 \| good	0.142 \| good
2025-10-24T04:00:00.000Z	16 \| good	0.832 \| good	3.275 \| good	17.157 \| good	0.272 \| good	3.26 \| good	0.142 \| good
2025-10-24T05:00:00.000Z	16 \| good	1.266 \| good	5 \| good	17.315 \| good	0.276 \| good	3.248 \| good	0.141 \| good
2025-10-24T06:00:00.000Z	16 \| good	1.35 \| good	5.303 \| good	16.998 \| good	0.279 \| good	3.236 \| good	0.14 \| good
2025-10-24T07:00:00.000Z	16 \| good	1.278 \| good	5.229 \| good	16.793 \| good	0.288 \| good	3.208 \| good	0.14 \| good
2025-10-24T08:00:00.000Z	15 \| good	1.283 \| good	5.275 \| good	16.496 \| good	0.296 \| good	3.18 \| good	0.139 \| good
2025-10-24T09:00:00.000Z	15 \| good	1.216 \| good	4.967 \| good	16.297 \| good	0.305 \| good	3.152 \| good	0.138 \| good
2025-10-24T10:00:00.000Z	14 \| good	1.197 \| good	4.967 \| good	14.811 \| good	0.32 \| good	3.481 \| good	0.14 \| good
2025-10-24T11:00:00.000Z	13 \| good	0.767 \| good	2.776 \| good	13.552 \| good	0.334 \| good	3.809 \| good	0.142 \| good
2025-10-24T12:00:00.000Z	12 \| good	0.76 \| good	2.765 \| good	13.209 \| good	0.349 \| good	4.138 \| good	0.144 \| good
2025-10-24T13:00:00.000Z	17 \| good	0.48 \| good	1.564 \| good	17.509 \| good	0.367 \| good	3.583 \| good	0.142 \| good
2025-10-24T14:00:00.000Z	20 \| good	0.222 \| good	0.537 \| good	22.001 \| good	0.386 \| good	3.029 \| good	0.141 \| good
2025-10-24T15:00:00.000Z	22 \| good	0.218 \| good	0.862 \| good	24.277 \| good	0.404 \| good	2.475 \| good	0.139 \| good

Norwalk

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Norwalk, Ohio air quality map: Track AQI near you

0.20ppm

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 09:00:00 on 2025-10-21.

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 02:00:00 on 2025-10-22.

What is the current air quality in Norwalk, Ohio?

The current air quality in Norwalk, Ohio is 20, 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 O3.

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 2.677 μg/m³.

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

The current PM₁₀ concentration at Norwalk, Ohio is 9.008 μg/m³.

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

The current carbon monoxide (CO) concentration at Norwalk, Ohio is 0.182 ppm.

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

The current sulfur dioxide (SO₂) concentration at Norwalk, Ohio is 0.609 ppb.

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

The current ozone (O₃) concentration at Norwalk, Ohio is 21.933 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Norwalk, Ohio is 5.923 ppb.

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