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

The current PM10 concentration at Norwalk, Ohio is 21.47 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Norwalk, Ohio is 0.59 ppb.

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

The current ozone (O3) concentration at Norwalk, Ohio is 40.946 ppm.

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

The current nitrogen dioxide (NO2) concentration at Norwalk, Ohio is 3.022 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 4.532 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)

4.53 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

21.47 μg/m³

155

255

425

605+

Ozone (O₃)

40.95 ppb

201

201+

Sulfur Dioxide (SO₂)

0.59 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

3.02 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.14 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
2026-07-21T23:00:00.000Z	62 \| moderate	14.84 \| fine	44.14 \| good	39.291 \| good	0.549 \| good	2.541 \| good	0.222 \| good
2026-07-22T00:00:00.000Z	54 \| moderate	11.434 \| good	25.665 \| good	40.527 \| good	0.407 \| good	2.697 \| good	0.222 \| good
2026-07-22T01:00:00.000Z	54 \| moderate	10.728 \| good	35.454 \| good	33.61 \| good	0.421 \| good	3.904 \| good	0.205 \| good
2026-07-22T02:00:00.000Z	52 \| moderate	9.595 \| good	25.422 \| good	36.332 \| good	0.571 \| good	2.584 \| good	0.191 \| good
2026-07-22T03:00:00.000Z	49 \| good	8.693 \| good	29.366 \| good	35.611 \| good	0.597 \| good	4.67 \| good	0.201 \| good
2026-07-22T04:00:00.000Z	38 \| good	6.863 \| good	26.876 \| good	32.191 \| good	0.592 \| good	3.721 \| good	0.188 \| good
2026-07-22T05:00:00.000Z	44 \| good	7.952 \| good	22.326 \| good	26.865 \| good	0.632 \| good	3.578 \| good	0.164 \| good
2026-07-22T06:00:00.000Z	38 \| good	7.314 \| good	27.911 \| good	23.736 \| good	0.952 \| good	3.16 \| good	0.137 \| good
2026-07-22T07:00:00.000Z	33 \| good	5.593 \| good	19.28 \| good	22.137 \| good	0.925 \| good	3.048 \| good	0.178 \| good
2026-07-22T08:00:00.000Z	22 \| good	4.221 \| good	18.186 \| good	20.729 \| good	0.579 \| good	2.809 \| good	0.151 \| good
2026-07-22T09:00:00.000Z	22 \| good	3.744 \| good	11.674 \| good	21.971 \| good	0.911 \| good	2.099 \| good	0.155 \| good
2026-07-22T10:00:00.000Z	21 \| good	3.139 \| good	9.514 \| good	22.974 \| good	0.556 \| good	3.156 \| good	0.137 \| good
2026-07-22T11:00:00.000Z	21 \| good	2.444 \| good	13.959 \| good	23.282 \| good	0.889 \| good	4.348 \| good	0.108 \| good
2026-07-22T12:00:00.000Z	20 \| good	2.228 \| good	9.761 \| good	22.28 \| good	0.888 \| good	2.958 \| good	0.164 \| good
2026-07-22T13:00:00.000Z	23 \| good	2.203 \| good	9.009 \| good	25.339 \| good	0.903 \| good	3.317 \| good	0.165 \| good
2026-07-22T14:00:00.000Z	25 \| good	2.399 \| good	8.352 \| good	26.521 \| good	0.556 \| good	4.717 \| good	0.185 \| good
2026-07-22T15:00:00.000Z	26 \| good	2.705 \| good	14.175 \| good	28.035 \| good	0.955 \| good	4.018 \| good	0.131 \| good
2026-07-22T16:00:00.000Z	29 \| good	2.816 \| good	16.302 \| good	31.156 \| good	0.961 \| good	3.646 \| good	0.115 \| good
2026-07-22T17:00:00.000Z	31 \| good	3.3 \| good	12.811 \| good	32.543 \| good	0.604 \| good	3.523 \| good	0.137 \| good
2026-07-22T18:00:00.000Z	33 \| good	3.601 \| good	14.222 \| good	35.709 \| good	0.604 \| good	3.376 \| good	0.144 \| good
2026-07-22T19:00:00.000Z	35 \| good	3.482 \| good	16.065 \| good	38.107 \| good	0.586 \| good	3.517 \| good	0.15 \| good
2026-07-22T20:00:00.000Z	38 \| good	3.409 \| good	16.021 \| good	40.94 \| good	0.934 \| good	3.032 \| good	0.125 \| good
2026-07-22T21:00:00.000Z	40 \| good	3.889 \| good	19.078 \| good	42.717 \| good	0.596 \| good	2.876 \| good	0.114 \| good
2026-07-22T22:00:00.000Z	42 \| good	3.558 \| good	19.55 \| good	44.68 \| good	0.953 \| good	2.313 \| good	0.115 \| good
2026-07-22T23:00:00.000Z	39 \| good	3.747 \| good	12.732 \| good	42.326 \| good	0.967 \| good	3.145 \| good	0.136 \| good
2026-07-23T00:00:00.000Z	38 \| good	3.036 \| good	17.022 \| good	40.874 \| good	0.936 \| good	2.402 \| good	0.137 \| good
2026-07-23T01:00:00.000Z	35 \| good	3.542 \| good	11.138 \| good	37.946 \| good	0.938 \| good	5.37 \| good	0.137 \| good
2026-07-23T02:00:00.000Z	33 \| good	3.19 \| good	14.406 \| good	36.241 \| good	0.958 \| good	8.031 \| good	0.163 \| good
2026-07-23T03:00:00.000Z	33 \| good	2.377 \| good	9.466 \| good	35.728 \| good	0.532 \| good	12.851 \| good	0.226 \| good
2026-07-23T04:00:00.000Z	27 \| good	3.631 \| good	15.504 \| good	29.372 \| good	0.611 \| good	11.072 \| good	0.182 \| good
2026-07-23T05:00:00.000Z	27 \| good	4.884 \| good	14.506 \| good	24.944 \| good	0.823 \| good	11.939 \| good	0.18 \| good
2026-07-23T06:00:00.000Z	33 \| good	6.151 \| good	20.615 \| good	16.863 \| good	1.179 \| good	13.27 \| good	0.179 \| good
2026-07-23T07:00:00.000Z	27 \| good	4.865 \| good	19.365 \| good	10.317 \| good	1.275 \| good	12.894 \| good	0.211 \| good
2026-07-23T08:00:00.000Z	22 \| good	4.336 \| good	14.326 \| good	10.264 \| good	0.677 \| good	11.916 \| good	0.194 \| good
2026-07-23T09:00:00.000Z	52 \| moderate	9.55 \| good	24.649 \| good	9.364 \| good	0.878 \| good	14.563 \| good	0.165 \| good
2026-07-23T10:00:00.000Z	33 \| good	5.888 \| good	17.357 \| good	13.16 \| good	0.775 \| good	15.749 \| good	0.18 \| good
2026-07-23T11:00:00.000Z	38 \| good	6.521 \| good	14.402 \| good	10.745 \| good	0.676 \| good	15.65 \| good	0.18 \| good
2026-07-23T12:00:00.000Z	33 \| good	5.711 \| good	21.223 \| good	12.756 \| good	0.697 \| good	14.365 \| good	0.224 \| good
2026-07-23T13:00:00.000Z	27 \| good	5.214 \| good	24.92 \| good	19.59 \| good	0.746 \| good	13.996 \| good	0.209 \| good
2026-07-23T14:00:00.000Z	33 \| good	5.999 \| good	19.85 \| good	25.729 \| good	0.798 \| good	12 \| good	0.22 \| good
2026-07-23T15:00:00.000Z	38 \| good	7.297 \| good	33.064 \| good	30.598 \| good	2.126 \| good	7.36 \| good	0.199 \| good
2026-07-23T16:00:00.000Z	31 \| good	5.285 \| good	24.988 \| good	34.375 \| good	0.897 \| good	4.677 \| good	0.135 \| good
2026-07-23T17:00:00.000Z	34 \| good	5.691 \| good	20.103 \| good	36.835 \| good	0.618 \| good	3.833 \| good	0.127 \| good
2026-07-23T18:00:00.000Z	35 \| good	4.967 \| good	22.48 \| good	38.09 \| good	0.666 \| good	3.411 \| good	0.148 \| good
2026-07-23T19:00:00.000Z	37 \| good	4.913 \| good	16.945 \| good	39.613 \| good	0.719 \| good	4.363 \| good	0.141 \| good
2026-07-23T20:00:00.000Z	36 \| good	4.561 \| good	23.142 \| good	39.334 \| good	0.551 \| good	3.842 \| good	0.142 \| good
2026-07-23T21:00:00.000Z	38 \| good	4.532 \| good	21.47 \| good	40.946 \| good	0.59 \| good	3.022 \| good	0.144 \| good
2026-07-23T22:00:00.000Z	38 \| good	4.532 \| good	21.47 \| good	40.946 \| good	0.59 \| good	3.022 \| good	0.144 \| good
2026-07-23T22:00:00.000Z	38 \| good	2.978 \| good	12.068 \| good	40.66 \| good	0.453 \| good	0.72 \| good	0.123 \| good
2026-07-23T23:00:00.000Z	37 \| good	2.54 \| good	10.151 \| good	39.702 \| good	0.468 \| good	0.924 \| good	0.124 \| good
2026-07-24T00:00:00.000Z	36 \| good	2.253 \| good	9.059 \| good	38.838 \| good	0.49 \| good	1.648 \| good	0.13 \| good
2026-07-24T01:00:00.000Z	32 \| good	0.97 \| good	3.639 \| good	34.504 \| good	0.516 \| good	4.055 \| good	0.149 \| good
2026-07-24T02:00:00.000Z	30 \| good	1.004 \| good	3.946 \| good	31.837 \| good	0.61 \| good	5.82 \| good	0.162 \| good
2026-07-24T03:00:00.000Z	27 \| good	1.304 \| good	5.077 \| good	28.867 \| good	0.758 \| good	6.801 \| good	0.169 \| good
2026-07-24T04:00:00.000Z	24 \| good	1.447 \| good	6.012 \| good	26.277 \| good	0.928 \| good	7.354 \| good	0.174 \| good
2026-07-24T05:00:00.000Z	21 \| good	1.423 \| good	5.637 \| good	23.106 \| good	1.06 \| good	7.719 \| good	0.179 \| good
2026-07-24T06:00:00.000Z	19 \| good	1.482 \| good	6.24 \| good	20.742 \| good	1.107 \| good	7.622 \| good	0.181 \| good
2026-07-24T07:00:00.000Z	18 \| good	2.237 \| good	8.942 \| good	18.957 \| good	1.042 \| good	7.444 \| good	0.182 \| good
2026-07-24T08:00:00.000Z	17 \| good	1.746 \| good	7 \| good	17.6 \| good	0.885 \| good	7.468 \| good	0.184 \| good
2026-07-24T09:00:00.000Z	16 \| good	0.968 \| good	3.98 \| good	16.858 \| good	0.702 \| good	7.726 \| good	0.187 \| good
2026-07-24T10:00:00.000Z	12 \| good	0.795 \| good	2.974 \| good	13.438 \| good	0.553 \| good	7.974 \| good	0.189 \| good
2026-07-24T11:00:00.000Z	12 \| good	1.483 \| good	6.197 \| good	12.99 \| good	0.458 \| good	7.959 \| good	0.191 \| good
2026-07-24T12:00:00.000Z	16 \| good	2.097 \| good	8.652 \| good	16.726 \| good	0.416 \| good	6.659 \| good	0.193 \| good
2026-07-24T13:00:00.000Z	22 \| good	4.457 \| good	19.457 \| good	22.582 \| good	0.46 \| good	5.367 \| good	0.192 \| good
2026-07-24T14:00:00.000Z	38 \| good	7.081 \| good	31.244 \| good	27.084 \| good	0.577 \| good	3.627 \| good	0.177 \| good
2026-07-24T15:00:00.000Z	44 \| good	8.351 \| good	36.575 \| good	32.679 \| good	0.788 \| good	1.791 \| good	0.158 \| good
2026-07-24T16:00:00.000Z	52 \| moderate	9.559 \| good	42.817 \| good	37.883 \| good	0.878 \| good	1.191 \| good	0.152 \| good
2026-07-24T17:00:00.000Z	54 \| moderate	10.979 \| good	48.489 \| good	42.717 \| good	0.912 \| good	0.9 \| good	0.15 \| good
2026-07-24T18:00:00.000Z	56 \| moderate	11.629 \| good	51.364 \| good	49.917 \| good	0.926 \| good	0.792 \| good	0.149 \| good
2026-07-24T19:00:00.000Z	56 \| moderate	11.514 \| good	51.115 \| good	53.594 \| good	0.923 \| good	0.734 \| good	0.15 \| good
2026-07-24T20:00:00.000Z	56 \| moderate	11.723 \| good	52.211 \| good	55.275 \| fine	0.925 \| good	0.729 \| good	0.151 \| good
2026-07-24T21:00:00.000Z	58 \| moderate	12.108 \| fine	54.706 \| good	56.719 \| fine	0.925 \| good	0.767 \| good	0.153 \| good
2026-07-24T22:00:00.000Z	56 \| moderate	12.047 \| good	53.812 \| good	56.193 \| fine	0.921 \| good	0.931 \| good	0.156 \| good
2026-07-24T23:00:00.000Z	54 \| moderate	10.711 \| good	47.371 \| good	49.96 \| good	0.94 \| good	1.28 \| good	0.16 \| good
2026-07-25T00:00:00.000Z	54 \| moderate	10.938 \| good	48.447 \| good	46.834 \| good	0.945 \| good	2.968 \| good	0.173 \| good
2026-07-25T01:00:00.000Z	44 \| good	8.334 \| good	36.341 \| good	41.858 \| good	0.953 \| good	4.248 \| good	0.177 \| good
2026-07-25T02:00:00.000Z	38 \| good	7.464 \| good	33.065 \| good	37.839 \| good	0.979 \| good	4.568 \| good	0.174 \| good
2026-07-25T03:00:00.000Z	33 \| good	5.526 \| good	23.793 \| good	34.038 \| good	0.984 \| good	4.862 \| good	0.173 \| good
2026-07-25T04:00:00.000Z	29 \| good	3.43 \| good	14.47 \| good	31.302 \| good	0.961 \| good	5.474 \| good	0.176 \| good
2026-07-25T05:00:00.000Z	26 \| good	1.845 \| good	7.721 \| good	28.115 \| good	0.93 \| good	6.43 \| good	0.183 \| good
2026-07-25T06:00:00.000Z	24 \| good	2.002 \| good	8.24 \| good	26.474 \| good	0.918 \| good	7.691 \| good	0.191 \| good
2026-07-25T07:00:00.000Z	24 \| good	1.922 \| good	8 \| good	25.927 \| good	0.92 \| good	9.319 \| good	0.202 \| good
2026-07-25T08:00:00.000Z	24 \| good	2.012 \| good	8.266 \| good	25.56 \| good	0.921 \| good	11.571 \| good	0.216 \| good
2026-07-25T09:00:00.000Z	25 \| good	2.202 \| good	8.871 \| good	27.221 \| good	0.912 \| good	14.075 \| good	0.233 \| good
2026-07-25T10:00:00.000Z	23 \| good	2.246 \| good	8.985 \| good	24.881 \| good	0.899 \| good	16.318 \| good	0.247 \| good
2026-07-25T11:00:00.000Z	21 \| good	1.603 \| good	6.803 \| good	22.657 \| good	0.851 \| good	16.009 \| good	0.258 \| good
2026-07-25T12:00:00.000Z	24 \| good	2.993 \| good	12.649 \| good	25.607 \| good	0.753 \| good	11.514 \| good	0.253 \| good
2026-07-25T13:00:00.000Z	31 \| good	4.657 \| good	19.922 \| good	33.674 \| good	0.905 \| good	7.038 \| good	0.214 \| good
2026-07-25T14:00:00.000Z	39 \| good	5.401 \| good	23.458 \| good	42.278 \| good	1.075 \| good	3.204 \| good	0.176 \| good
2026-07-25T15:00:00.000Z	44 \| good	6.827 \| good	30.122 \| good	47.045 \| good	1.159 \| good	1.503 \| good	0.163 \| good
2026-07-25T16:00:00.000Z	49 \| good	8.598 \| good	37.395 \| good	49.664 \| good	1.126 \| good	0.974 \| good	0.161 \| good
2026-07-25T17:00:00.000Z	54 \| moderate	10.856 \| good	47.997 \| good	50.47 \| good	1.068 \| good	0.736 \| good	0.158 \| good
2026-07-25T18:00:00.000Z	58 \| moderate	12.852 \| fine	58.222 \| fine	50.979 \| good	1.015 \| good	0.625 \| good	0.155 \| good
2026-07-25T19:00:00.000Z	58 \| moderate	12.873 \| fine	58.453 \| fine	51.375 \| good	0.987 \| good	0.591 \| good	0.154 \| good
2026-07-25T20:00:00.000Z	56 \| moderate	12.398 \| fine	56.315 \| fine	51.017 \| good	0.97 \| good	0.597 \| good	0.153 \| good
2026-07-25T21:00:00.000Z	58 \| moderate	12.701 \| fine	56.926 \| fine	49.667 \| good	0.954 \| good	0.649 \| good	0.152 \| good

Norwalk

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Norwalk, Ohio air quality map: Track AQI near you

0.17ppm

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 2026-07-23.

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 08:00:00 on 2026-07-23.

What is the current air quality in Norwalk, Ohio?

The current air quality in Norwalk, Ohio is 38, 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 4.532 μg/m³.

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

The current PM₁₀ concentration at Norwalk, Ohio is 21.47 μg/m³.

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

The current carbon monoxide (CO) concentration at Norwalk, Ohio is 0.144 ppm.

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

The current sulfur dioxide (SO₂) concentration at Norwalk, Ohio is 0.59 ppb.

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

The current ozone (O₃) concentration at Norwalk, Ohio is 40.946 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Norwalk, Ohio is 3.022 ppb.

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