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

The current PM10 concentration at Norwalk, Ohio is 25.508 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Norwalk, Ohio is 1.369 ppb.

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

The current ozone (O3) concentration at Norwalk, Ohio is 48.934 ppm.

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

The current nitrogen dioxide (NO2) concentration at Norwalk, Ohio is 9.408 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 8.301 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)

8.30 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

25.51 μg/m³

155

255

425

605+

Ozone (O₃)

48.93 ppb

201

201+

Sulfur Dioxide (SO₂)

1.37 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

9.41 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.24 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
2026-10-20T23:00:00.000Z	35 \| good	5.671 \| good	24.242 \| good	38.213 \| good	1.065 \| good	4.255 \| good	0.251 \| good
2026-10-21T00:00:00.000Z	33 \| good	5.597 \| good	22.314 \| good	36.42 \| good	0.991 \| good	4.868 \| good	0.322 \| good
2026-10-21T01:00:00.000Z	31 \| good	5.278 \| good	22.49 \| good	33.898 \| good	0.995 \| good	6.177 \| good	0.366 \| good
2026-10-21T02:00:00.000Z	33 \| good	6.317 \| good	28.503 \| good	33.01 \| good	0.94 \| good	8.518 \| good	0.356 \| good
2026-10-21T03:00:00.000Z	52 \| moderate	9.962 \| good	44.257 \| good	19.041 \| good	1.111 \| good	7.793 \| good	0.205 \| good
2026-10-21T04:00:00.000Z	54 \| moderate	11.214 \| good	57.978 \| fine	23.853 \| good	0.896 \| good	5.662 \| good	0.372 \| good
2026-10-21T05:00:00.000Z	52 \| moderate	9.901 \| good	43.176 \| good	14.097 \| good	0.869 \| good	7.249 \| good	0.432 \| good
2026-10-21T06:00:00.000Z	56 \| moderate	11.686 \| good	55.824 \| fine	15.76 \| good	0.833 \| good	7.645 \| good	0.394 \| good
2026-10-21T07:00:00.000Z	52 \| moderate	9.549 \| good	40.625 \| good	13.791 \| good	0.807 \| good	8.5 \| good	0.439 \| good
2026-10-21T08:00:00.000Z	49 \| good	8.876 \| good	41.045 \| good	15.887 \| good	0.827 \| good	12.665 \| good	0.423 \| good
2026-10-21T09:00:00.000Z	52 \| moderate	9.72 \| good	41.946 \| good	16.755 \| good	0.856 \| good	14.479 \| good	0.445 \| good
2026-10-21T10:00:00.000Z	52 \| moderate	10.344 \| good	44.788 \| good	13.74 \| good	0.907 \| good	14.605 \| good	0.467 \| good
2026-10-21T11:00:00.000Z	54 \| moderate	10.591 \| good	41.236 \| good	11.996 \| good	0.92 \| good	14.781 \| good	0.434 \| good
2026-10-21T12:00:00.000Z	56 \| moderate	12.055 \| good	29.515 \| good	10.694 \| good	0.952 \| good	12.996 \| good	0.555 \| good
2026-10-21T13:00:00.000Z	56 \| moderate	12.067 \| good	39.783 \| good	7.163 \| good	1.054 \| good	11.884 \| good	0.585 \| good
2026-10-21T14:00:00.000Z	58 \| moderate	12.763 \| fine	40.736 \| good	14.607 \| good	1.289 \| good	13.945 \| good	0.529 \| good
2026-10-21T15:00:00.000Z	52 \| moderate	9.992 \| good	35.171 \| good	16.247 \| good	1.094 \| good	12.404 \| good	0.596 \| good
2026-10-21T16:00:00.000Z	56 \| moderate	12.295 \| fine	29.925 \| good	18.848 \| good	1.33 \| good	7.98 \| good	0.486 \| good
2026-10-21T17:00:00.000Z	49 \| good	8.824 \| good	20.026 \| good	24.083 \| good	2.009 \| good	7.132 \| good	0.448 \| good
2026-10-21T18:00:00.000Z	33 \| good	5.759 \| good	24.237 \| good	30.263 \| good	1.147 \| good	5.429 \| good	0.282 \| good
2026-10-21T19:00:00.000Z	38 \| good	6.51 \| good	29.355 \| good	34.15 \| good	0.979 \| good	4.579 \| good	0.234 \| good
2026-10-21T20:00:00.000Z	33 \| good	4.67 \| good	22.375 \| good	35.722 \| good	0.969 \| good	4.886 \| good	0.251 \| good
2026-10-21T21:00:00.000Z	33 \| good	4.606 \| good	17.255 \| good	35.78 \| good	0.96 \| good	4.592 \| good	0.271 \| good
2026-10-21T22:00:00.000Z	34 \| good	3.253 \| good	12.832 \| good	36.863 \| good	0.931 \| good	8.491 \| good	0.252 \| good
2026-10-21T23:00:00.000Z	33 \| good	2.973 \| good	11.743 \| good	35.866 \| good	0.926 \| good	7.099 \| good	0.272 \| good
2026-10-22T00:00:00.000Z	23 \| good	3.325 \| good	13.252 \| good	25.418 \| good	0.969 \| good	8.44 \| good	0.286 \| good
2026-10-22T01:00:00.000Z	27 \| good	3.423 \| good	17.023 \| good	29.378 \| good	1.106 \| good	9.59 \| good	0.327 \| good
2026-10-22T02:00:00.000Z	23 \| good	4.213 \| good	18.069 \| good	25.426 \| good	1.118 \| good	10.949 \| good	0.338 \| good
2026-10-22T03:00:00.000Z	17 \| good	3.164 \| good	13.504 \| good	18.169 \| good	0.948 \| good	12.024 \| good	0.25 \| good
2026-10-22T04:00:00.000Z	27 \| good	4.653 \| good	17.294 \| good	17.184 \| good	1.162 \| good	15.291 \| good	0.344 \| good
2026-10-22T05:00:00.000Z	27 \| good	5.021 \| good	19.097 \| good	13.183 \| good	1.138 \| good	17.683 \| good	0.362 \| good
2026-10-22T06:00:00.000Z	27 \| good	4.681 \| good	15.119 \| good	12.823 \| good	1.1 \| good	14.734 \| good	0.411 \| good
2026-10-22T07:00:00.000Z	27 \| good	5.454 \| good	22.791 \| good	13.731 \| good	1.067 \| good	12.821 \| good	0.425 \| good
2026-10-22T08:00:00.000Z	49 \| good	9.044 \| good	40.463 \| good	12.765 \| good	1.046 \| good	12.336 \| good	0.392 \| good
2026-10-22T09:00:00.000Z	52 \| moderate	9.759 \| good	18.176 \| good	10.712 \| good	0.835 \| good	9.322 \| good	0.394 \| good
2026-10-22T10:00:00.000Z	54 \| moderate	10.887 \| good	42.101 \| good	10.817 \| good	0.956 \| good	10.847 \| good	0.393 \| good
2026-10-22T11:00:00.000Z	52 \| moderate	10.248 \| good	38.456 \| good	12.296 \| good	0.987 \| good	10.737 \| good	0.496 \| good
2026-10-22T12:00:00.000Z	54 \| moderate	11.316 \| good	23.913 \| good	10.103 \| good	1.087 \| good	15.38 \| good	0.566 \| good
2026-10-22T13:00:00.000Z	60 \| moderate	14.41 \| fine	51.747 \| good	8.752 \| good	1.168 \| good	15.333 \| good	0.628 \| good
2026-10-22T14:00:00.000Z	62 \| moderate	15.077 \| fine	57.273 \| fine	14.794 \| good	1.502 \| good	18.728 \| good	0.712 \| good
2026-10-22T15:00:00.000Z	60 \| moderate	13.689 \| fine	39.068 \| good	15.42 \| good	1.796 \| good	12.912 \| good	0.514 \| good
2026-10-22T16:00:00.000Z	52 \| moderate	9.795 \| good	37.923 \| good	23.061 \| good	1.512 \| good	12.951 \| good	0.4 \| good
2026-10-22T17:00:00.000Z	54 \| moderate	10.676 \| good	33.328 \| good	29.859 \| good	1.706 \| good	13.552 \| good	0.321 \| good
2026-10-22T18:00:00.000Z	52 \| moderate	10.42 \| good	35.557 \| good	35.919 \| good	1.362 \| good	10.432 \| good	0.257 \| good
2026-10-22T19:00:00.000Z	49 \| good	8.592 \| good	36.234 \| good	40.419 \| good	1.475 \| good	6.216 \| good	0.243 \| good
2026-10-22T20:00:00.000Z	44 \| good	7.8 \| good	40.058 \| good	47.183 \| good	1.599 \| good	6.271 \| good	0.225 \| good
2026-10-22T21:00:00.000Z	54 \| moderate	10.858 \| good	45.636 \| good	48.241 \| good	1.407 \| good	6.646 \| good	0.223 \| good
2026-10-22T22:00:00.000Z	45 \| good	8.301 \| good	25.508 \| good	48.934 \| good	1.369 \| good	9.408 \| good	0.243 \| good
2026-10-22T22:00:00.000Z	45 \| good	8.301 \| good	25.508 \| good	48.934 \| good	1.369 \| good	9.408 \| good	0.243 \| good
2026-10-22T23:00:00.000Z	52 \| moderate	10.48 \| good	46.623 \| good	39.437 \| good	1.727 \| good	10.084 \| good	0.25 \| good
2026-10-23T00:00:00.000Z	54 \| moderate	11.142 \| good	49.071 \| good	33.207 \| good	1.713 \| good	12.18 \| good	0.277 \| good
2026-10-23T01:00:00.000Z	58 \| moderate	12.993 \| fine	58.145 \| fine	30.474 \| good	1.717 \| good	13.501 \| good	0.294 \| good
2026-10-23T02:00:00.000Z	62 \| moderate	15.387 \| fine	69.043 \| fine	27.93 \| good	1.73 \| good	14.09 \| good	0.301 \| good
2026-10-23T03:00:00.000Z	66 \| moderate	16.662 \| fine	73.853 \| fine	25.463 \| good	1.715 \| good	14.32 \| good	0.304 \| good
2026-10-23T04:00:00.000Z	66 \| moderate	16.558 \| fine	73.748 \| fine	23.496 \| good	1.65 \| good	13.687 \| good	0.3 \| good
2026-10-23T05:00:00.000Z	67 \| moderate	17.758 \| fine	78.739 \| fine	20.718 \| good	1.515 \| good	12.039 \| good	0.286 \| good
2026-10-23T06:00:00.000Z	71 \| moderate	19.577 \| fine	86.272 \| fine	19.403 \| good	1.331 \| good	10.023 \| good	0.266 \| good
2026-10-23T07:00:00.000Z	71 \| moderate	20.066 \| fine	88.437 \| fine	18.937 \| good	1.129 \| good	8.017 \| good	0.244 \| good
2026-10-23T08:00:00.000Z	69 \| moderate	18.604 \| fine	81.904 \| fine	18.66 \| good	0.962 \| good	6.384 \| good	0.225 \| good
2026-10-23T09:00:00.000Z	67 \| moderate	18.3 \| fine	81.165 \| fine	18.18 \| good	0.851 \| good	5.582 \| good	0.213 \| good
2026-10-23T10:00:00.000Z	67 \| moderate	18.23 \| fine	80.824 \| fine	18.627 \| good	0.799 \| good	5.543 \| good	0.21 \| good
2026-10-23T11:00:00.000Z	67 \| moderate	17.848 \| fine	79.219 \| fine	19.108 \| good	0.786 \| good	6.253 \| good	0.215 \| good
2026-10-23T12:00:00.000Z	67 \| moderate	17.856 \| fine	79.361 \| fine	17.904 \| good	0.786 \| good	8.239 \| good	0.234 \| good
2026-10-23T13:00:00.000Z	67 \| moderate	17.575 \| fine	77.801 \| fine	18.422 \| good	0.736 \| good	9.773 \| good	0.27 \| good
2026-10-23T14:00:00.000Z	66 \| moderate	17.496 \| fine	77.446 \| fine	26.398 \| good	0.654 \| good	8.233 \| good	0.285 \| good
2026-10-23T15:00:00.000Z	64 \| moderate	15.596 \| fine	69.513 \| fine	33.791 \| good	1.052 \| good	5.315 \| good	0.24 \| good
2026-10-23T16:00:00.000Z	60 \| moderate	13.533 \| fine	61.3 \| fine	39.481 \| good	1.38 \| good	3.327 \| good	0.216 \| good
2026-10-23T17:00:00.000Z	56 \| moderate	11.662 \| good	51.968 \| good	42.499 \| good	1.3 \| good	2.264 \| good	0.2 \| good
2026-10-23T18:00:00.000Z	56 \| moderate	12.07 \| good	53.462 \| good	44.81 \| good	1.272 \| good	1.96 \| good	0.195 \| good
2026-10-23T19:00:00.000Z	60 \| moderate	14.211 \| fine	64.125 \| fine	47.15 \| good	1.291 \| good	1.884 \| good	0.193 \| good
2026-10-23T20:00:00.000Z	64 \| moderate	15.954 \| fine	70.863 \| fine	47.773 \| good	1.321 \| good	1.901 \| good	0.193 \| good
2026-10-23T21:00:00.000Z	58 \| moderate	13.403 \| fine	60.018 \| fine	46.51 \| good	1.363 \| good	2.046 \| good	0.193 \| good
2026-10-23T22:00:00.000Z	38 \| good	6.853 \| good	30.2 \| good	39.208 \| good	1.366 \| good	2.741 \| good	0.197 \| good
2026-10-23T23:00:00.000Z	28 \| good	3.135 \| good	13.203 \| good	30.418 \| good	1.265 \| good	4.719 \| good	0.215 \| good
2026-10-24T00:00:00.000Z	24 \| good	2.194 \| good	8.906 \| good	25.63 \| good	1.227 \| good	5.369 \| good	0.216 \| good
2026-10-24T01:00:00.000Z	19 \| good	2.393 \| good	9.62 \| good	21.068 \| good	1.179 \| good	5.401 \| good	0.207 \| good
2026-10-24T02:00:00.000Z	22 \| good	4.386 \| good	19.207 \| good	18.383 \| good	1.094 \| good	5.664 \| good	0.2 \| good
2026-10-24T03:00:00.000Z	33 \| good	6.389 \| good	28.396 \| good	15.055 \| good	0.993 \| good	6.194 \| good	0.198 \| good
2026-10-24T04:00:00.000Z	44 \| good	8.292 \| good	36.733 \| good	12.632 \| good	0.888 \| good	6.92 \| good	0.201 \| good
2026-10-24T05:00:00.000Z	56 \| moderate	11.934 \| good	53.504 \| good	9.973 \| good	0.791 \| good	7.611 \| good	0.206 \| good
2026-10-24T06:00:00.000Z	67 \| moderate	18.271 \| fine	80.289 \| fine	9.892 \| good	0.706 \| good	8.378 \| good	0.214 \| good
2026-10-24T07:00:00.000Z	77 \| moderate	22.573 \| fine	99.602 \| fine	11.862 \| good	0.633 \| good	9.159 \| good	0.223 \| good
2026-10-24T08:00:00.000Z	75 \| moderate	22.391 \| fine	98.437 \| fine	14.158 \| good	0.572 \| good	9.812 \| good	0.232 \| good
2026-10-24T09:00:00.000Z	75 \| moderate	21.666 \| fine	95.453 \| fine	15.223 \| good	0.529 \| good	10.24 \| good	0.24 \| good
2026-10-24T10:00:00.000Z	71 \| moderate	19.99 \| fine	88.042 \| fine	14.709 \| good	0.506 \| good	10.524 \| good	0.246 \| good
2026-10-24T11:00:00.000Z	69 \| moderate	18.915 \| fine	83.841 \| fine	14.646 \| good	0.503 \| good	10.793 \| good	0.252 \| good
2026-10-24T12:00:00.000Z	69 \| moderate	19.369 \| fine	85.973 \| fine	13.698 \| good	0.515 \| good	10.925 \| good	0.261 \| good
2026-10-24T13:00:00.000Z	66 \| moderate	16.598 \| fine	74.096 \| fine	14.022 \| good	0.522 \| good	8.73 \| good	0.272 \| good
2026-10-24T14:00:00.000Z	58 \| moderate	12.77 \| fine	57.809 \| fine	20.276 \| good	0.573 \| good	6.786 \| good	0.266 \| good
2026-10-24T15:00:00.000Z	52 \| moderate	10.419 \| good	45.936 \| good	27.771 \| good	0.872 \| good	4.754 \| good	0.224 \| good
2026-10-24T16:00:00.000Z	52 \| moderate	9.643 \| good	42.791 \| good	34.518 \| good	0.973 \| good	2.832 \| good	0.192 \| good
2026-10-24T17:00:00.000Z	44 \| good	8.45 \| good	37.394 \| good	39.996 \| good	0.909 \| good	2.045 \| good	0.181 \| good
2026-10-24T18:00:00.000Z	44 \| good	7.799 \| good	34.427 \| good	42.578 \| good	0.899 \| good	1.781 \| good	0.176 \| good
2026-10-24T19:00:00.000Z	41 \| good	6.601 \| good	29.484 \| good	44.209 \| good	0.932 \| good	1.678 \| good	0.173 \| good
2026-10-24T20:00:00.000Z	42 \| good	5.598 \| good	24.076 \| good	44.661 \| good	0.991 \| good	1.697 \| good	0.171 \| good
2026-10-24T21:00:00.000Z	41 \| good	5.533 \| good	24.355 \| good	43.926 \| good	1.072 \| good	1.94 \| good	0.171 \| good
2026-10-24T22:00:00.000Z	37 \| good	6.263 \| good	28.101 \| good	39.507 \| good	1.102 \| good	3.217 \| good	0.181 \| good

Norwalk

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Norwalk, Ohio air quality map: Track AQI near you

0.23ppm

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 2026-10-22.

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 03:00:00 on 2026-10-22.

What is the current air quality in Norwalk, Ohio?

The current air quality in Norwalk, Ohio is 45, 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 8.301 μg/m³.

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

The current PM₁₀ concentration at Norwalk, Ohio is 25.508 μg/m³.

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

The current carbon monoxide (CO) concentration at Norwalk, Ohio is 0.243 ppm.

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

The current sulfur dioxide (SO₂) concentration at Norwalk, Ohio is 1.369 ppb.

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

The current ozone (O₃) concentration at Norwalk, Ohio is 48.934 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Norwalk, Ohio is 9.408 ppb.

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