What is the PM10 level in Knoxville, Tennessee at the moment?

The PM10 concentration in Knoxville, Tennessee is 37.913 μg/m3 at the moment.

What is the sulfur dioxide (SO2) level in Knoxville, Tennessee at the moment?

Currently, Knoxville, Tennessee has a sulfur dioxide (SO2) concentration of 1.286 ppb.

What is the ozone (O3) level in Knoxville, Tennessee at the moment?

The current ozone (O3) level in Knoxville, Tennessee at the moment is 25.641 ppm.

What is the nitrogen dioxide (NO2) level in Knoxville, Tennessee at the moment?

Nitrogen dioxide (NO2) level in Knoxville, Tennessee at the moment is 15.258 ppb.

Live air quality index in Knoxville, Tennessee today

Q: What is the PM2.5 level in Knoxville, Tennessee at the moment?

PM2.5 levels in Knoxville, Tennessee are currently 8.477 μg/m3.

Stay updated with real-time air quality in Knoxville, Tennessee 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

Knoxville, Tennessee

Last updated: ... (Local time)

Major air pollutants in Knoxville, Tennessee

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

8.48 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

37.91 μg/m³

155

255

425

605+

Ozone (O₃)

25.64 ppb

201

201+

Sulfur Dioxide (SO₂)

1.29 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

15.26 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.38 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Knoxville, Tennessee

Get Live Pollen Counts

Knoxville, Tennessee

Scroll To Air Quality Map

Track live Knoxville, Tennessee air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-21T01:00:00.000Z	30 \| good	3.586 \| good	15.889 \| good	31.666 \| good	3.182 \| good	13.147 \| good	0.324 \| good
2026-01-21T02:00:00.000Z	22 \| good	4.491 \| good	19.812 \| good	19.031 \| good	0.558 \| good	19.85 \| good	0.387 \| good
2026-01-21T03:00:00.000Z	22 \| good	4.382 \| good	19.462 \| good	8.403 \| good	2.752 \| good	22.722 \| good	0.428 \| good
2026-01-21T04:00:00.000Z	38 \| good	7.086 \| good	31.438 \| good	16.059 \| good	0.565 \| good	20.017 \| good	0.408 \| good
2026-01-21T05:00:00.000Z	52 \| moderate	9.965 \| good	44.535 \| good	11.08 \| good	0.832 \| good	22.221 \| good	0.431 \| good
2026-01-21T06:00:00.000Z	52 \| moderate	9.965 \| good	44.535 \| good	7.644 \| good	0.62 \| good	23.366 \| good	0.446 \| good
2026-01-21T07:00:00.000Z	54 \| moderate	10.671 \| good	47.656 \| good	6.713 \| good	0.607 \| good	23.415 \| good	0.584 \| good
2026-01-21T08:00:00.000Z	56 \| moderate	12.139 \| fine	54.205 \| good	16.109 \| good	0.797 \| good	23.641 \| good	0.523 \| good
2026-01-21T09:00:00.000Z	58 \| moderate	13.187 \| fine	59.761 \| fine	14.564 \| good	0.841 \| good	17.876 \| good	0.453 \| good
2026-01-21T10:00:00.000Z	58 \| moderate	13.186 \| fine	59.752 \| fine	11.142 \| good	0.75 \| good	13.648 \| good	0.475 \| good
2026-01-21T11:00:00.000Z	56 \| moderate	12.133 \| fine	54.201 \| good	6.326 \| good	0.739 \| good	15.374 \| good	0.451 \| good
2026-01-21T12:00:00.000Z	60 \| moderate	13.902 \| fine	61.893 \| fine	6.172 \| good	0.987 \| good	19.276 \| good	0.459 \| good
2026-01-21T13:00:00.000Z	58 \| moderate	12.82 \| fine	57.831 \| fine	6.233 \| good	1.059 \| good	18.317 \| good	0.636 \| good
2026-01-21T14:00:00.000Z	56 \| moderate	11.605 \| good	52.737 \| good	5.681 \| good	1.331 \| good	17.855 \| good	0.632 \| good
2026-01-21T15:00:00.000Z	54 \| moderate	10.807 \| good	48.057 \| good	14.05 \| good	0.732 \| good	19.457 \| good	0.604 \| good
2026-01-21T16:00:00.000Z	54 \| moderate	10.843 \| good	48.409 \| good	24.086 \| good	3.104 \| good	11.345 \| good	0.542 \| good
2026-01-21T17:00:00.000Z	54 \| moderate	10.842 \| good	48.403 \| good	29.425 \| good	3.049 \| good	10.724 \| good	0.381 \| good
2026-01-21T18:00:00.000Z	52 \| moderate	10.139 \| good	45.037 \| good	28.813 \| good	8.284 \| good	8.244 \| good	0.318 \| good
2026-01-21T19:00:00.000Z	52 \| moderate	10.136 \| good	45.022 \| good	29.091 \| good	8.249 \| good	8.761 \| good	0.248 \| good
2026-01-21T20:00:00.000Z	44 \| good	8.069 \| good	35.822 \| good	28.916 \| good	5.671 \| good	8.292 \| good	0.313 \| good
2026-01-21T21:00:00.000Z	44 \| good	8.067 \| good	35.816 \| good	30.643 \| good	5.639 \| good	9.41 \| good	0.29 \| good
2026-01-21T22:00:00.000Z	38 \| good	7.25 \| good	32.533 \| good	39.585 \| good	1.702 \| good	9.3 \| good	0.29 \| good
2026-01-21T23:00:00.000Z	38 \| good	7.255 \| good	32.554 \| good	37.835 \| good	0.776 \| good	9.99 \| good	0.306 \| good
2026-01-22T00:00:00.000Z	44 \| good	7.713 \| good	34.063 \| good	28.049 \| good	0.73 \| good	12.712 \| good	0.422 \| good
2026-01-22T01:00:00.000Z	44 \| good	7.733 \| good	34.332 \| good	36.371 \| good	0.736 \| good	12.616 \| good	0.439 \| good
2026-01-22T02:00:00.000Z	54 \| moderate	11.391 \| good	50.497 \| good	29.189 \| good	2.33 \| good	11.981 \| good	0.478 \| good
2026-01-22T03:00:00.000Z	60 \| moderate	14.404 \| fine	65.096 \| fine	24.806 \| good	1.878 \| good	12.58 \| good	0.501 \| good
2026-01-22T04:00:00.000Z	60 \| moderate	14.406 \| fine	65.102 \| fine	21.488 \| good	1.928 \| good	12.215 \| good	0.507 \| good
2026-01-22T05:00:00.000Z	60 \| moderate	14.121 \| fine	62.982 \| fine	22.866 \| good	0.698 \| good	9.302 \| good	0.496 \| good
2026-01-22T06:00:00.000Z	60 \| moderate	14.213 \| fine	63.714 \| fine	22.438 \| good	0.698 \| good	9.834 \| good	0.409 \| good
2026-01-22T07:00:00.000Z	58 \| moderate	13.419 \| fine	60.415 \| fine	18.846 \| good	1.171 \| good	10.34 \| good	0.392 \| good
2026-01-22T08:00:00.000Z	56 \| moderate	11.905 \| good	53.085 \| good	14.725 \| good	0.71 \| good	13.44 \| good	0.292 \| good
2026-01-22T09:00:00.000Z	58 \| moderate	12.733 \| fine	57.244 \| fine	20.134 \| good	7.906 \| good	15.587 \| good	0.273 \| good
2026-01-22T10:00:00.000Z	58 \| moderate	12.731 \| fine	57.238 \| fine	22.153 \| good	7.906 \| good	13.933 \| good	0.25 \| good
2026-01-22T11:00:00.000Z	60 \| moderate	13.914 \| fine	63.45 \| fine	22.941 \| good	14.828 \| good	15.188 \| good	0.32 \| good
2026-01-22T12:00:00.000Z	60 \| moderate	14.341 \| fine	64.103 \| fine	22.689 \| good	7.909 \| good	16.547 \| good	0.297 \| good
2026-01-22T13:00:00.000Z	62 \| moderate	14.807 \| fine	66.707 \| fine	18.783 \| good	7.457 \| good	8.454 \| good	0.354 \| good
2026-01-22T14:00:00.000Z	64 \| moderate	16.475 \| fine	73.049 \| fine	18.789 \| good	3.636 \| good	8.799 \| good	0.377 \| good
2026-01-22T15:00:00.000Z	69 \| moderate	19.383 \| fine	85.786 \| fine	26.058 \| good	1.22 \| good	6.881 \| good	0.292 \| good
2026-01-22T16:00:00.000Z	73 \| moderate	20.918 \| fine	91.695 \| fine	27.32 \| good	1.225 \| good	7.467 \| good	0.34 \| good
2026-01-22T17:00:00.000Z	73 \| moderate	20.671 \| fine	90.685 \| fine	28.074 \| good	0.928 \| good	6.383 \| good	0.338 \| good
2026-01-22T18:00:00.000Z	66 \| moderate	16.634 \| fine	74.645 \| fine	29.09 \| good	1.734 \| good	4.3 \| good	0.321 \| good
2026-01-22T19:00:00.000Z	58 \| moderate	13.388 \| fine	60.324 \| fine	33.024 \| good	1.755 \| good	5.747 \| good	0.257 \| good
2026-01-22T20:00:00.000Z	54 \| moderate	11.203 \| good	49.612 \| good	33.927 \| good	1.142 \| good	6.205 \| good	0.299 \| good
2026-01-22T21:00:00.000Z	52 \| moderate	9.957 \| good	44.347 \| good	31.176 \| good	0.989 \| good	6.183 \| good	0.252 \| good
2026-01-22T22:00:00.000Z	52 \| moderate	9.952 \| good	44.323 \| good	31.53 \| good	0.999 \| good	8.13 \| good	0.323 \| good
2026-01-22T23:00:00.000Z	49 \| good	9.391 \| good	42.143 \| good	27.106 \| good	1.967 \| good	10.119 \| good	0.317 \| good
2026-01-23T00:00:00.000Z	44 \| good	8.477 \| good	37.913 \| good	25.641 \| good	1.286 \| good	15.258 \| good	0.384 \| good
2026-01-23T00:00:00.000Z	44 \| good	8.477 \| good	37.913 \| good	25.641 \| good	1.286 \| good	15.258 \| good	0.384 \| good
2026-01-23T01:00:00.000Z	33 \| good	5.884 \| good	25.797 \| good	16.613 \| good	1.83 \| good	15.192 \| good	0.323 \| good
2026-01-23T02:00:00.000Z	33 \| good	5.632 \| good	24.085 \| good	15.678 \| good	1.758 \| good	14.612 \| good	0.322 \| good
2026-01-23T03:00:00.000Z	38 \| good	6.921 \| good	30.452 \| good	17.288 \| good	1.685 \| good	14.032 \| good	0.321 \| good
2026-01-23T04:00:00.000Z	38 \| good	7.081 \| good	31.292 \| good	18.35 \| good	1.567 \| good	12.646 \| good	0.306 \| good
2026-01-23T05:00:00.000Z	38 \| good	7.329 \| good	32.246 \| good	16.585 \| good	1.449 \| good	11.26 \| good	0.292 \| good
2026-01-23T06:00:00.000Z	44 \| good	7.562 \| good	32.926 \| good	14.769 \| good	1.33 \| good	9.874 \| good	0.277 \| good
2026-01-23T07:00:00.000Z	38 \| good	6.636 \| good	29.287 \| good	13.455 \| good	1.277 \| good	8.789 \| good	0.264 \| good
2026-01-23T08:00:00.000Z	38 \| good	6.712 \| good	29.785 \| good	14.43 \| good	1.224 \| good	7.705 \| good	0.252 \| good
2026-01-23T09:00:00.000Z	33 \| good	6.122 \| good	27.429 \| good	10.435 \| good	1.171 \| good	6.62 \| good	0.239 \| good
2026-01-23T10:00:00.000Z	38 \| good	7.432 \| good	32.919 \| good	11.849 \| good	1.178 \| good	6.232 \| good	0.232 \| good
2026-01-23T11:00:00.000Z	33 \| good	5.637 \| good	24.485 \| good	12.02 \| good	1.185 \| good	5.843 \| good	0.224 \| good
2026-01-23T12:00:00.000Z	27 \| good	4.634 \| good	19.966 \| good	12.694 \| good	1.191 \| good	5.455 \| good	0.217 \| good
2026-01-23T13:00:00.000Z	22 \| good	4.315 \| good	19.012 \| good	12.797 \| good	1.365 \| good	4.849 \| good	0.213 \| good
2026-01-23T14:00:00.000Z	22 \| good	3.913 \| good	17.071 \| good	16.803 \| good	1.538 \| good	4.243 \| good	0.209 \| good
2026-01-23T15:00:00.000Z	27 \| good	4.864 \| good	21.04 \| good	22.467 \| good	1.712 \| good	3.637 \| good	0.205 \| good
2026-01-23T16:00:00.000Z	27 \| good	4.884 \| good	21.337 \| good	26.226 \| good	2.024 \| good	3.054 \| good	0.194 \| good
2026-01-23T17:00:00.000Z	27 \| good	4.601 \| good	20.031 \| good	27.148 \| good	2.336 \| good	2.471 \| good	0.182 \| good
2026-01-23T18:00:00.000Z	27 \| good	4.992 \| good	21.413 \| good	27.493 \| good	2.648 \| good	1.887 \| good	0.171 \| good
2026-01-23T19:00:00.000Z	27 \| good	5.307 \| good	22.74 \| good	26.698 \| good	2.528 \| good	1.974 \| good	0.171 \| good
2026-01-23T20:00:00.000Z	38 \| good	6.525 \| good	29.03 \| good	26.637 \| good	2.407 \| good	2.061 \| good	0.171 \| good
2026-01-23T21:00:00.000Z	44 \| good	7.522 \| good	33.204 \| good	26.629 \| good	2.287 \| good	2.148 \| good	0.171 \| good
2026-01-23T22:00:00.000Z	33 \| good	5.838 \| good	25.55 \| good	24.176 \| good	2.108 \| good	2.811 \| good	0.173 \| good
2026-01-23T23:00:00.000Z	27 \| good	4.92 \| good	21.39 \| good	23.283 \| good	1.93 \| good	3.475 \| good	0.174 \| good
2026-01-24T00:00:00.000Z	22 \| good	3.843 \| good	16.84 \| good	21.671 \| good	1.751 \| good	4.139 \| good	0.176 \| good
2026-01-24T01:00:00.000Z	22 \| good	3.928 \| good	17.284 \| good	18.993 \| good	1.982 \| good	3.859 \| good	0.17 \| good
2026-01-24T02:00:00.000Z	22 \| good	3.888 \| good	16.994 \| good	18.178 \| good	2.213 \| good	3.578 \| good	0.163 \| good
2026-01-24T03:00:00.000Z	27 \| good	5.025 \| good	21.435 \| good	20.635 \| good	2.444 \| good	3.298 \| good	0.157 \| good
2026-01-24T04:00:00.000Z	22 \| good	4.152 \| good	18.275 \| good	20.234 \| good	2.328 \| good	3.026 \| good	0.154 \| good
2026-01-24T05:00:00.000Z	22 \| good	3.739 \| good	16.352 \| good	20.835 \| good	2.213 \| good	2.753 \| good	0.152 \| good
2026-01-24T06:00:00.000Z	22 \| good	3.93 \| good	17.055 \| good	19.86 \| good	2.097 \| good	2.481 \| good	0.149 \| good
2026-01-24T07:00:00.000Z	18 \| good	2.963 \| good	12.584 \| good	18.932 \| good	1.903 \| good	2.363 \| good	0.15 \| good
2026-01-24T08:00:00.000Z	19 \| good	3.085 \| good	12.923 \| good	20.733 \| good	1.708 \| good	2.245 \| good	0.151 \| good
2026-01-24T09:00:00.000Z	20 \| good	1.994 \| good	8.291 \| good	22.313 \| good	1.514 \| good	2.127 \| good	0.152 \| good
2026-01-24T10:00:00.000Z	21 \| good	2.837 \| good	11.856 \| good	23.25 \| good	1.942 \| good	2.258 \| good	0.154 \| good
2026-01-24T11:00:00.000Z	19 \| good	2.784 \| good	11.396 \| good	19.787 \| good	2.369 \| good	2.389 \| good	0.156 \| good
2026-01-24T12:00:00.000Z	19 \| good	2.283 \| good	9.33 \| good	19.831 \| good	2.797 \| good	2.52 \| good	0.158 \| good
2026-01-24T13:00:00.000Z	19 \| good	2.313 \| good	9.727 \| good	19.935 \| good	2.948 \| good	3.043 \| good	0.161 \| good
2026-01-24T14:00:00.000Z	18 \| good	2.202 \| good	9.25 \| good	18.788 \| good	3.098 \| good	3.566 \| good	0.165 \| good
2026-01-24T15:00:00.000Z	22 \| good	3.624 \| good	15.877 \| good	17.996 \| good	3.248 \| good	4.089 \| good	0.169 \| good
2026-01-24T16:00:00.000Z	22 \| good	4.075 \| good	17.685 \| good	15.652 \| good	3.031 \| good	4.173 \| good	0.169 \| good
2026-01-24T17:00:00.000Z	22 \| good	4.101 \| good	17.716 \| good	13.061 \| good	2.813 \| good	4.257 \| good	0.17 \| good
2026-01-24T18:00:00.000Z	22 \| good	3.931 \| good	17.486 \| good	12.001 \| good	2.596 \| good	4.341 \| good	0.171 \| good
2026-01-24T19:00:00.000Z	22 \| good	3.953 \| good	17.334 \| good	11.212 \| good	2.372 \| good	4.533 \| good	0.173 \| good
2026-01-24T20:00:00.000Z	22 \| good	3.7 \| good	16.22 \| good	7.997 \| good	2.149 \| good	4.725 \| good	0.175 \| good
2026-01-24T21:00:00.000Z	22 \| good	3.901 \| good	17.192 \| good	10.744 \| good	1.926 \| good	4.917 \| good	0.177 \| good
2026-01-24T22:00:00.000Z	38 \| good	6.889 \| good	30.321 \| good	12.223 \| good	1.771 \| good	5.688 \| good	0.187 \| good
2026-01-24T23:00:00.000Z	33 \| good	5.575 \| good	24.132 \| good	5.123 \| good	1.617 \| good	6.459 \| good	0.198 \| good
2026-01-25T00:00:00.000Z	52 \| moderate	10.036 \| good	10.264 \| good	19.669 \| good	1.465 \| good	7.257 \| good	0.208 \| good

Knoxville

Get reliable air quality data to drive your business

Knoxville, Tennessee air quality map: Stay updated on AQI near you

0.31ppm

How accurate is Tennessee, USA air quality data?

Air quality and pollutant data for Tennessee, 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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Check live rankings of places in the USA affected by air pollution.

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Frequently asked questions

How often is air quality information updated for Knoxville, Tennessee?

The air quality information for Knoxville, Tennessee is updated every hour for accuracy.

What time in the last 24 hours was the air quality in Knoxville, Tennessee at its worst?

In the past 24 hours, the air quality in Knoxville, Tennessee was at its worst at 05:00:00 on 2026-01-22.

When did Knoxville, Tennessee experience the best air quality in the last 24 hours?

In the last 24 hours, the best air quality in Knoxville, Tennessee was observed at 01:00:00 on 2026-01-22.

What is the AQI in Knoxville, Tennessee right now?

As of now, the AQI in Knoxville, Tennessee is 44, indicating Good conditions.

What is the most common type of pollution in Knoxville, Tennessee?

Knoxville, Tennessee air has the highest levels of PM2.5.

What should I do in case of poor air quality in Knoxville, Tennessee?

Poor air quality in Knoxville, Tennessee means it's advisable to stay indoors and wear a mask for your protection.

What is the PM_2.5 level in Knoxville, Tennessee at the moment?

PM_2.5 levels in Knoxville, Tennessee are currently 8.477 μg/m³.

What is the PM₁₀ level in Knoxville, Tennessee at the moment?

The PM₁₀ concentration in Knoxville, Tennessee is 37.913 μg/m³ at the moment.

What is the carbon monoxide (CO) level in Knoxville, Tennessee at the moment?

The current carbon monoxide (CO) concentration in Knoxville, Tennessee is 0.384 ppm.

What is the sulfur dioxide (SO₂) level in Knoxville, Tennessee at the moment?

Currently, Knoxville, Tennessee has a sulfur dioxide (SO₂) concentration of 1.286 ppb.

What is the ozone (O₃) level in Knoxville, Tennessee at the moment?

The current ozone (O₃) level in Knoxville, Tennessee at the moment is 25.641 ppm.

What is the nitrogen dioxide (NO₂) level in Knoxville, Tennessee at the moment?

Nitrogen dioxide (NO₂) level in Knoxville, Tennessee at the moment is 15.258 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-21T01:00:00.000Z	30 \| good	3.586 \| good	15.889 \| good	31.666 \| good	3.182 \| good	13.147 \| good	0.324 \| good
2026-01-21T02:00:00.000Z	22 \| good	4.491 \| good	19.812 \| good	19.031 \| good	0.558 \| good	19.85 \| good	0.387 \| good
2026-01-21T03:00:00.000Z	22 \| good	4.382 \| good	19.462 \| good	8.403 \| good	2.752 \| good	22.722 \| good	0.428 \| good
2026-01-21T04:00:00.000Z	38 \| good	7.086 \| good	31.438 \| good	16.059 \| good	0.565 \| good	20.017 \| good	0.408 \| good
2026-01-21T05:00:00.000Z	52 \| moderate	9.965 \| good	44.535 \| good	11.08 \| good	0.832 \| good	22.221 \| good	0.431 \| good
2026-01-21T06:00:00.000Z	52 \| moderate	9.965 \| good	44.535 \| good	7.644 \| good	0.62 \| good	23.366 \| good	0.446 \| good
2026-01-21T07:00:00.000Z	54 \| moderate	10.671 \| good	47.656 \| good	6.713 \| good	0.607 \| good	23.415 \| good	0.584 \| good
2026-01-21T08:00:00.000Z	56 \| moderate	12.139 \| fine	54.205 \| good	16.109 \| good	0.797 \| good	23.641 \| good	0.523 \| good
2026-01-21T09:00:00.000Z	58 \| moderate	13.187 \| fine	59.761 \| fine	14.564 \| good	0.841 \| good	17.876 \| good	0.453 \| good
2026-01-21T10:00:00.000Z	58 \| moderate	13.186 \| fine	59.752 \| fine	11.142 \| good	0.75 \| good	13.648 \| good	0.475 \| good
2026-01-21T11:00:00.000Z	56 \| moderate	12.133 \| fine	54.201 \| good	6.326 \| good	0.739 \| good	15.374 \| good	0.451 \| good
2026-01-21T12:00:00.000Z	60 \| moderate	13.902 \| fine	61.893 \| fine	6.172 \| good	0.987 \| good	19.276 \| good	0.459 \| good
2026-01-21T13:00:00.000Z	58 \| moderate	12.82 \| fine	57.831 \| fine	6.233 \| good	1.059 \| good	18.317 \| good	0.636 \| good
2026-01-21T14:00:00.000Z	56 \| moderate	11.605 \| good	52.737 \| good	5.681 \| good	1.331 \| good	17.855 \| good	0.632 \| good
2026-01-21T15:00:00.000Z	54 \| moderate	10.807 \| good	48.057 \| good	14.05 \| good	0.732 \| good	19.457 \| good	0.604 \| good
2026-01-21T16:00:00.000Z	54 \| moderate	10.843 \| good	48.409 \| good	24.086 \| good	3.104 \| good	11.345 \| good	0.542 \| good
2026-01-21T17:00:00.000Z	54 \| moderate	10.842 \| good	48.403 \| good	29.425 \| good	3.049 \| good	10.724 \| good	0.381 \| good
2026-01-21T18:00:00.000Z	52 \| moderate	10.139 \| good	45.037 \| good	28.813 \| good	8.284 \| good	8.244 \| good	0.318 \| good
2026-01-21T19:00:00.000Z	52 \| moderate	10.136 \| good	45.022 \| good	29.091 \| good	8.249 \| good	8.761 \| good	0.248 \| good
2026-01-21T20:00:00.000Z	44 \| good	8.069 \| good	35.822 \| good	28.916 \| good	5.671 \| good	8.292 \| good	0.313 \| good
2026-01-21T21:00:00.000Z	44 \| good	8.067 \| good	35.816 \| good	30.643 \| good	5.639 \| good	9.41 \| good	0.29 \| good
2026-01-21T22:00:00.000Z	38 \| good	7.25 \| good	32.533 \| good	39.585 \| good	1.702 \| good	9.3 \| good	0.29 \| good
2026-01-21T23:00:00.000Z	38 \| good	7.255 \| good	32.554 \| good	37.835 \| good	0.776 \| good	9.99 \| good	0.306 \| good
2026-01-22T00:00:00.000Z	44 \| good	7.713 \| good	34.063 \| good	28.049 \| good	0.73 \| good	12.712 \| good	0.422 \| good
2026-01-22T01:00:00.000Z	44 \| good	7.733 \| good	34.332 \| good	36.371 \| good	0.736 \| good	12.616 \| good	0.439 \| good
2026-01-22T02:00:00.000Z	54 \| moderate	11.391 \| good	50.497 \| good	29.189 \| good	2.33 \| good	11.981 \| good	0.478 \| good
2026-01-22T03:00:00.000Z	60 \| moderate	14.404 \| fine	65.096 \| fine	24.806 \| good	1.878 \| good	12.58 \| good	0.501 \| good
2026-01-22T04:00:00.000Z	60 \| moderate	14.406 \| fine	65.102 \| fine	21.488 \| good	1.928 \| good	12.215 \| good	0.507 \| good
2026-01-22T05:00:00.000Z	60 \| moderate	14.121 \| fine	62.982 \| fine	22.866 \| good	0.698 \| good	9.302 \| good	0.496 \| good
2026-01-22T06:00:00.000Z	60 \| moderate	14.213 \| fine	63.714 \| fine	22.438 \| good	0.698 \| good	9.834 \| good	0.409 \| good
2026-01-22T07:00:00.000Z	58 \| moderate	13.419 \| fine	60.415 \| fine	18.846 \| good	1.171 \| good	10.34 \| good	0.392 \| good
2026-01-22T08:00:00.000Z	56 \| moderate	11.905 \| good	53.085 \| good	14.725 \| good	0.71 \| good	13.44 \| good	0.292 \| good
2026-01-22T09:00:00.000Z	58 \| moderate	12.733 \| fine	57.244 \| fine	20.134 \| good	7.906 \| good	15.587 \| good	0.273 \| good
2026-01-22T10:00:00.000Z	58 \| moderate	12.731 \| fine	57.238 \| fine	22.153 \| good	7.906 \| good	13.933 \| good	0.25 \| good
2026-01-22T11:00:00.000Z	60 \| moderate	13.914 \| fine	63.45 \| fine	22.941 \| good	14.828 \| good	15.188 \| good	0.32 \| good
2026-01-22T12:00:00.000Z	60 \| moderate	14.341 \| fine	64.103 \| fine	22.689 \| good	7.909 \| good	16.547 \| good	0.297 \| good
2026-01-22T13:00:00.000Z	62 \| moderate	14.807 \| fine	66.707 \| fine	18.783 \| good	7.457 \| good	8.454 \| good	0.354 \| good
2026-01-22T14:00:00.000Z	64 \| moderate	16.475 \| fine	73.049 \| fine	18.789 \| good	3.636 \| good	8.799 \| good	0.377 \| good
2026-01-22T15:00:00.000Z	69 \| moderate	19.383 \| fine	85.786 \| fine	26.058 \| good	1.22 \| good	6.881 \| good	0.292 \| good
2026-01-22T16:00:00.000Z	73 \| moderate	20.918 \| fine	91.695 \| fine	27.32 \| good	1.225 \| good	7.467 \| good	0.34 \| good
2026-01-22T17:00:00.000Z	73 \| moderate	20.671 \| fine	90.685 \| fine	28.074 \| good	0.928 \| good	6.383 \| good	0.338 \| good
2026-01-22T18:00:00.000Z	66 \| moderate	16.634 \| fine	74.645 \| fine	29.09 \| good	1.734 \| good	4.3 \| good	0.321 \| good
2026-01-22T19:00:00.000Z	58 \| moderate	13.388 \| fine	60.324 \| fine	33.024 \| good	1.755 \| good	5.747 \| good	0.257 \| good
2026-01-22T20:00:00.000Z	54 \| moderate	11.203 \| good	49.612 \| good	33.927 \| good	1.142 \| good	6.205 \| good	0.299 \| good
2026-01-22T21:00:00.000Z	52 \| moderate	9.957 \| good	44.347 \| good	31.176 \| good	0.989 \| good	6.183 \| good	0.252 \| good
2026-01-22T22:00:00.000Z	52 \| moderate	9.952 \| good	44.323 \| good	31.53 \| good	0.999 \| good	8.13 \| good	0.323 \| good
2026-01-22T23:00:00.000Z	49 \| good	9.391 \| good	42.143 \| good	27.106 \| good	1.967 \| good	10.119 \| good	0.317 \| good
2026-01-23T00:00:00.000Z	44 \| good	8.477 \| good	37.913 \| good	25.641 \| good	1.286 \| good	15.258 \| good	0.384 \| good
2026-01-23T00:00:00.000Z	44 \| good	8.477 \| good	37.913 \| good	25.641 \| good	1.286 \| good	15.258 \| good	0.384 \| good
2026-01-23T01:00:00.000Z	33 \| good	5.884 \| good	25.797 \| good	16.613 \| good	1.83 \| good	15.192 \| good	0.323 \| good
2026-01-23T02:00:00.000Z	33 \| good	5.632 \| good	24.085 \| good	15.678 \| good	1.758 \| good	14.612 \| good	0.322 \| good
2026-01-23T03:00:00.000Z	38 \| good	6.921 \| good	30.452 \| good	17.288 \| good	1.685 \| good	14.032 \| good	0.321 \| good
2026-01-23T04:00:00.000Z	38 \| good	7.081 \| good	31.292 \| good	18.35 \| good	1.567 \| good	12.646 \| good	0.306 \| good
2026-01-23T05:00:00.000Z	38 \| good	7.329 \| good	32.246 \| good	16.585 \| good	1.449 \| good	11.26 \| good	0.292 \| good
2026-01-23T06:00:00.000Z	44 \| good	7.562 \| good	32.926 \| good	14.769 \| good	1.33 \| good	9.874 \| good	0.277 \| good
2026-01-23T07:00:00.000Z	38 \| good	6.636 \| good	29.287 \| good	13.455 \| good	1.277 \| good	8.789 \| good	0.264 \| good
2026-01-23T08:00:00.000Z	38 \| good	6.712 \| good	29.785 \| good	14.43 \| good	1.224 \| good	7.705 \| good	0.252 \| good
2026-01-23T09:00:00.000Z	33 \| good	6.122 \| good	27.429 \| good	10.435 \| good	1.171 \| good	6.62 \| good	0.239 \| good
2026-01-23T10:00:00.000Z	38 \| good	7.432 \| good	32.919 \| good	11.849 \| good	1.178 \| good	6.232 \| good	0.232 \| good
2026-01-23T11:00:00.000Z	33 \| good	5.637 \| good	24.485 \| good	12.02 \| good	1.185 \| good	5.843 \| good	0.224 \| good
2026-01-23T12:00:00.000Z	27 \| good	4.634 \| good	19.966 \| good	12.694 \| good	1.191 \| good	5.455 \| good	0.217 \| good
2026-01-23T13:00:00.000Z	22 \| good	4.315 \| good	19.012 \| good	12.797 \| good	1.365 \| good	4.849 \| good	0.213 \| good
2026-01-23T14:00:00.000Z	22 \| good	3.913 \| good	17.071 \| good	16.803 \| good	1.538 \| good	4.243 \| good	0.209 \| good
2026-01-23T15:00:00.000Z	27 \| good	4.864 \| good	21.04 \| good	22.467 \| good	1.712 \| good	3.637 \| good	0.205 \| good
2026-01-23T16:00:00.000Z	27 \| good	4.884 \| good	21.337 \| good	26.226 \| good	2.024 \| good	3.054 \| good	0.194 \| good
2026-01-23T17:00:00.000Z	27 \| good	4.601 \| good	20.031 \| good	27.148 \| good	2.336 \| good	2.471 \| good	0.182 \| good
2026-01-23T18:00:00.000Z	27 \| good	4.992 \| good	21.413 \| good	27.493 \| good	2.648 \| good	1.887 \| good	0.171 \| good
2026-01-23T19:00:00.000Z	27 \| good	5.307 \| good	22.74 \| good	26.698 \| good	2.528 \| good	1.974 \| good	0.171 \| good
2026-01-23T20:00:00.000Z	38 \| good	6.525 \| good	29.03 \| good	26.637 \| good	2.407 \| good	2.061 \| good	0.171 \| good
2026-01-23T21:00:00.000Z	44 \| good	7.522 \| good	33.204 \| good	26.629 \| good	2.287 \| good	2.148 \| good	0.171 \| good
2026-01-23T22:00:00.000Z	33 \| good	5.838 \| good	25.55 \| good	24.176 \| good	2.108 \| good	2.811 \| good	0.173 \| good
2026-01-23T23:00:00.000Z	27 \| good	4.92 \| good	21.39 \| good	23.283 \| good	1.93 \| good	3.475 \| good	0.174 \| good
2026-01-24T00:00:00.000Z	22 \| good	3.843 \| good	16.84 \| good	21.671 \| good	1.751 \| good	4.139 \| good	0.176 \| good
2026-01-24T01:00:00.000Z	22 \| good	3.928 \| good	17.284 \| good	18.993 \| good	1.982 \| good	3.859 \| good	0.17 \| good
2026-01-24T02:00:00.000Z	22 \| good	3.888 \| good	16.994 \| good	18.178 \| good	2.213 \| good	3.578 \| good	0.163 \| good
2026-01-24T03:00:00.000Z	27 \| good	5.025 \| good	21.435 \| good	20.635 \| good	2.444 \| good	3.298 \| good	0.157 \| good
2026-01-24T04:00:00.000Z	22 \| good	4.152 \| good	18.275 \| good	20.234 \| good	2.328 \| good	3.026 \| good	0.154 \| good
2026-01-24T05:00:00.000Z	22 \| good	3.739 \| good	16.352 \| good	20.835 \| good	2.213 \| good	2.753 \| good	0.152 \| good
2026-01-24T06:00:00.000Z	22 \| good	3.93 \| good	17.055 \| good	19.86 \| good	2.097 \| good	2.481 \| good	0.149 \| good
2026-01-24T07:00:00.000Z	18 \| good	2.963 \| good	12.584 \| good	18.932 \| good	1.903 \| good	2.363 \| good	0.15 \| good
2026-01-24T08:00:00.000Z	19 \| good	3.085 \| good	12.923 \| good	20.733 \| good	1.708 \| good	2.245 \| good	0.151 \| good
2026-01-24T09:00:00.000Z	20 \| good	1.994 \| good	8.291 \| good	22.313 \| good	1.514 \| good	2.127 \| good	0.152 \| good
2026-01-24T10:00:00.000Z	21 \| good	2.837 \| good	11.856 \| good	23.25 \| good	1.942 \| good	2.258 \| good	0.154 \| good
2026-01-24T11:00:00.000Z	19 \| good	2.784 \| good	11.396 \| good	19.787 \| good	2.369 \| good	2.389 \| good	0.156 \| good
2026-01-24T12:00:00.000Z	19 \| good	2.283 \| good	9.33 \| good	19.831 \| good	2.797 \| good	2.52 \| good	0.158 \| good
2026-01-24T13:00:00.000Z	19 \| good	2.313 \| good	9.727 \| good	19.935 \| good	2.948 \| good	3.043 \| good	0.161 \| good
2026-01-24T14:00:00.000Z	18 \| good	2.202 \| good	9.25 \| good	18.788 \| good	3.098 \| good	3.566 \| good	0.165 \| good
2026-01-24T15:00:00.000Z	22 \| good	3.624 \| good	15.877 \| good	17.996 \| good	3.248 \| good	4.089 \| good	0.169 \| good
2026-01-24T16:00:00.000Z	22 \| good	4.075 \| good	17.685 \| good	15.652 \| good	3.031 \| good	4.173 \| good	0.169 \| good
2026-01-24T17:00:00.000Z	22 \| good	4.101 \| good	17.716 \| good	13.061 \| good	2.813 \| good	4.257 \| good	0.17 \| good
2026-01-24T18:00:00.000Z	22 \| good	3.931 \| good	17.486 \| good	12.001 \| good	2.596 \| good	4.341 \| good	0.171 \| good
2026-01-24T19:00:00.000Z	22 \| good	3.953 \| good	17.334 \| good	11.212 \| good	2.372 \| good	4.533 \| good	0.173 \| good
2026-01-24T20:00:00.000Z	22 \| good	3.7 \| good	16.22 \| good	7.997 \| good	2.149 \| good	4.725 \| good	0.175 \| good
2026-01-24T21:00:00.000Z	22 \| good	3.901 \| good	17.192 \| good	10.744 \| good	1.926 \| good	4.917 \| good	0.177 \| good
2026-01-24T22:00:00.000Z	38 \| good	6.889 \| good	30.321 \| good	12.223 \| good	1.771 \| good	5.688 \| good	0.187 \| good
2026-01-24T23:00:00.000Z	33 \| good	5.575 \| good	24.132 \| good	5.123 \| good	1.617 \| good	6.459 \| good	0.198 \| good
2026-01-25T00:00:00.000Z	52 \| moderate	10.036 \| good	10.264 \| good	19.669 \| good	1.465 \| good	7.257 \| good	0.208 \| good

Live air quality index in Knoxville, Tennessee today

Major air pollutants in Knoxville, Tennessee

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Knoxville, Tennessee air quality map: Stay updated on AQI near you

Air quality in nearby cities

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Seymour, Tennessee

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Frequently asked questions

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Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the PM_2.5 level in Knoxville, Tennessee at the moment?

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What is the nitrogen dioxide (NO₂) level in Knoxville, Tennessee at the moment?