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

The PM10 concentration in Knoxville, Tennessee is 18.974 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 0.672 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 42.36 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 9.281 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 4.23 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)

4.23 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

18.97 μg/m³

155

255

425

605+

Ozone (O₃)

42.36 ppb

201

201+

Sulfur Dioxide (SO₂)

0.67 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

9.28 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.29 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

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
2026-10-20T21:00:00.000Z	32 \| good	2.431 \| good	10.369 \| good	35.281 \| good	0.768 \| good	11.479 \| good	0.29 \| good
2026-10-20T22:00:00.000Z	31 \| good	2.563 \| good	10.536 \| good	33.687 \| good	0.791 \| good	11.188 \| good	0.264 \| good
2026-10-20T23:00:00.000Z	31 \| good	3.62 \| good	15.988 \| good	33.246 \| good	1.164 \| good	7.125 \| good	0.329 \| good
2026-10-21T00:00:00.000Z	27 \| good	4.679 \| good	20.352 \| good	28.755 \| good	0.602 \| good	15.702 \| good	0.44 \| good
2026-10-21T01:00:00.000Z	44 \| good	7.822 \| good	34.515 \| good	29.945 \| good	0.618 \| good	16.215 \| good	0.637 \| good
2026-10-21T02:00:00.000Z	49 \| good	8.621 \| good	37.776 \| good	20.146 \| good	0.8 \| good	17.072 \| good	0.676 \| good
2026-10-21T03:00:00.000Z	16 \| good	2.69 \| good	11.144 \| good	12.614 \| good	0.63 \| good	7.784 \| good	0.229 \| good
2026-10-21T04:00:00.000Z	38 \| good	7.285 \| good	32.204 \| good	15.514 \| good	0.545 \| good	17.636 \| good	0.662 \| good
2026-10-21T05:00:00.000Z	38 \| good	7.286 \| good	32.23 \| good	12.797 \| good	0.521 \| good	15.59 \| good	0.661 \| good
2026-10-21T06:00:00.000Z	44 \| good	7.596 \| good	33.704 \| good	11.87 \| good	0.559 \| good	19.003 \| good	0.647 \| good
2026-10-21T07:00:00.000Z	38 \| good	7.039 \| good	31.06 \| good	9.625 \| good	0.581 \| good	17.041 \| good	0.724 \| good
2026-10-21T08:00:00.000Z	38 \| good	6.605 \| good	29.199 \| good	7.462 \| good	0.465 \| good	16.405 \| good	0.598 \| good
2026-10-21T09:00:00.000Z	33 \| good	5.662 \| good	24.932 \| good	7.12 \| good	0.469 \| good	14.859 \| good	0.571 \| good
2026-10-21T10:00:00.000Z	27 \| good	5.195 \| good	22.302 \| good	8.417 \| good	0.498 \| good	13.53 \| good	0.581 \| good
2026-10-21T11:00:00.000Z	27 \| good	4.75 \| good	20.582 \| good	4.306 \| good	0.573 \| good	11.266 \| good	0.618 \| good
2026-10-21T12:00:00.000Z	27 \| good	4.713 \| good	20.824 \| good	5.394 \| good	0.555 \| good	12.935 \| good	0.641 \| good
2026-10-21T13:00:00.000Z	27 \| good	5.162 \| good	22.791 \| good	6.835 \| good	0.555 \| good	15.052 \| good	0.629 \| good
2026-10-21T14:00:00.000Z	38 \| good	6.537 \| good	29.136 \| good	7.217 \| good	0.696 \| good	16.575 \| good	0.701 \| good
2026-10-21T15:00:00.000Z	33 \| good	6.115 \| good	27.3 \| good	11.048 \| good	0.588 \| good	18.866 \| good	0.679 \| good
2026-10-21T16:00:00.000Z	33 \| good	5.805 \| good	25.673 \| good	16.408 \| good	0.499 \| good	21.401 \| good	0.507 \| good
2026-10-21T17:00:00.000Z	27 \| good	5.002 \| good	22.017 \| good	27.294 \| good	0.509 \| good	15.889 \| good	0.307 \| good
2026-10-21T18:00:00.000Z	26 \| good	4.409 \| good	19.018 \| good	28.088 \| good	0.553 \| good	12.842 \| good	0.248 \| good
2026-10-21T19:00:00.000Z	34 \| good	4 \| good	17.652 \| good	36.902 \| good	0.771 \| good	8.646 \| good	0.243 \| good
2026-10-21T20:00:00.000Z	38 \| good	3.743 \| good	16.678 \| good	41.256 \| good	0.76 \| good	7.808 \| good	0.342 \| good
2026-10-21T21:00:00.000Z	38 \| good	3.625 \| good	15.968 \| good	41.397 \| good	0.593 \| good	6.128 \| good	0.243 \| good
2026-10-21T22:00:00.000Z	40 \| good	3.582 \| good	15.772 \| good	42.537 \| good	0.739 \| good	7.569 \| good	0.256 \| good
2026-10-21T23:00:00.000Z	37 \| good	3.352 \| good	15.133 \| good	40.253 \| good	0.517 \| good	6.533 \| good	0.284 \| good
2026-10-22T00:00:00.000Z	35 \| good	3.479 \| good	15.665 \| good	38.374 \| good	0.605 \| good	15.741 \| good	0.391 \| good
2026-10-22T01:00:00.000Z	28 \| good	3.942 \| good	17.238 \| good	29.784 \| good	0.763 \| good	22.23 \| good	0.454 \| good
2026-10-22T02:00:00.000Z	33 \| good	6.339 \| good	28.476 \| good	29.353 \| good	0.638 \| good	24.749 \| good	0.529 \| good
2026-10-22T03:00:00.000Z	44 \| good	8.087 \| good	35.417 \| good	8.125 \| good	0.612 \| good	14.919 \| good	0.321 \| good
2026-10-22T04:00:00.000Z	44 \| good	8.072 \| good	35.941 \| good	15.721 \| good	0.452 \| good	16.111 \| good	0.727 \| good
2026-10-22T05:00:00.000Z	44 \| good	7.65 \| good	34.321 \| good	15.192 \| good	0.452 \| good	9.675 \| good	0.694 \| good
2026-10-22T06:00:00.000Z	38 \| good	6.846 \| good	29.827 \| good	12.209 \| good	0.436 \| good	19.054 \| good	0.709 \| good
2026-10-22T07:00:00.000Z	33 \| good	6.256 \| good	27.639 \| good	13.668 \| good	0.461 \| good	22.942 \| good	0.665 \| good
2026-10-22T08:00:00.000Z	38 \| good	6.894 \| good	30.678 \| good	7.551 \| good	0.462 \| good	20.873 \| good	0.608 \| good
2026-10-22T09:00:00.000Z	38 \| good	6.504 \| good	29.003 \| good	7.557 \| good	0.473 \| good	16.533 \| good	0.541 \| good
2026-10-22T10:00:00.000Z	33 \| good	6.054 \| good	26.86 \| good	6.221 \| good	0.593 \| good	12.268 \| good	0.534 \| good
2026-10-22T11:00:00.000Z	33 \| good	6.128 \| good	27.198 \| good	5.515 \| good	0.503 \| good	16.032 \| good	0.508 \| good
2026-10-22T12:00:00.000Z	44 \| good	7.513 \| good	33.057 \| good	4.307 \| good	0.72 \| good	20.604 \| good	0.602 \| good
2026-10-22T13:00:00.000Z	44 \| good	7.778 \| good	34.174 \| good	4.833 \| good	0.741 \| good	20.292 \| good	0.631 \| good
2026-10-22T14:00:00.000Z	38 \| good	6.652 \| good	29.263 \| good	7.725 \| good	0.792 \| good	19.903 \| good	0.599 \| good
2026-10-22T15:00:00.000Z	33 \| good	6.483 \| good	28.928 \| good	12.502 \| good	0.939 \| good	12.118 \| good	0.411 \| good
2026-10-22T16:00:00.000Z	27 \| good	5.465 \| good	23.994 \| good	15.624 \| good	0.859 \| good	14.319 \| good	0.463 \| good
2026-10-22T17:00:00.000Z	27 \| good	5.464 \| good	23.956 \| good	24.608 \| good	0.572 \| good	17.971 \| good	0.471 \| good
2026-10-22T18:00:00.000Z	33 \| good	4.709 \| good	20.357 \| good	36.102 \| good	0.601 \| good	14.03 \| good	0.36 \| good
2026-10-22T19:00:00.000Z	37 \| good	4.648 \| good	20.141 \| good	40.166 \| good	0.848 \| good	8.498 \| good	0.271 \| good
2026-10-22T20:00:00.000Z	39 \| good	4.23 \| good	18.974 \| good	42.36 \| good	0.672 \| good	9.281 \| good	0.294 \| good
2026-10-22T20:00:00.000Z	39 \| good	4.23 \| good	18.974 \| good	42.36 \| good	0.672 \| good	9.281 \| good	0.294 \| good
2026-10-22T21:00:00.000Z	38 \| good	6.697 \| good	29.979 \| good	36.875 \| good	0.565 \| good	0.622 \| good	0.149 \| good
2026-10-22T22:00:00.000Z	44 \| good	7.89 \| good	34.29 \| good	30.3 \| good	0.503 \| good	1.348 \| good	0.156 \| good
2026-10-22T23:00:00.000Z	44 \| good	8.122 \| good	35.651 \| good	28.822 \| good	0.459 \| good	4.718 \| good	0.196 \| good
2026-10-23T00:00:00.000Z	54 \| moderate	10.957 \| good	48.607 \| good	20.865 \| good	0.441 \| good	6.884 \| good	0.222 \| good
2026-10-23T01:00:00.000Z	54 \| moderate	11.187 \| good	49.544 \| good	18.136 \| good	0.432 \| good	6.717 \| good	0.221 \| good
2026-10-23T02:00:00.000Z	54 \| moderate	10.792 \| good	47.688 \| good	14.619 \| good	0.429 \| good	5.886 \| good	0.212 \| good
2026-10-23T03:00:00.000Z	56 \| moderate	11.848 \| good	52.733 \| good	13.009 \| good	0.446 \| good	4.984 \| good	0.205 \| good
2026-10-23T04:00:00.000Z	56 \| moderate	11.833 \| good	52.795 \| good	13.434 \| good	0.5 \| good	4.276 \| good	0.201 \| good
2026-10-23T05:00:00.000Z	56 \| moderate	12.052 \| good	54.127 \| good	12.781 \| good	0.596 \| good	3.709 \| good	0.198 \| good
2026-10-23T06:00:00.000Z	58 \| moderate	13.061 \| fine	58.538 \| fine	13.175 \| good	0.713 \| good	3.38 \| good	0.197 \| good
2026-10-23T07:00:00.000Z	60 \| moderate	13.514 \| fine	60.719 \| fine	13.128 \| good	0.814 \| good	3.282 \| good	0.196 \| good
2026-10-23T08:00:00.000Z	60 \| moderate	13.784 \| fine	62.447 \| fine	13.321 \| good	0.897 \| good	3.321 \| good	0.196 \| good
2026-10-23T09:00:00.000Z	60 \| moderate	13.523 \| fine	60.719 \| fine	13.874 \| good	0.977 \| good	3.358 \| good	0.196 \| good
2026-10-23T10:00:00.000Z	60 \| moderate	14.237 \| fine	63.93 \| fine	10.304 \| good	1.038 \| good	3.452 \| good	0.197 \| good
2026-10-23T11:00:00.000Z	62 \| moderate	14.722 \| fine	66.19 \| fine	8.069 \| good	1.065 \| good	3.731 \| good	0.2 \| good
2026-10-23T12:00:00.000Z	62 \| moderate	15.15 \| fine	68.154 \| fine	9.072 \| good	1.063 \| good	4.805 \| good	0.212 \| good
2026-10-23T13:00:00.000Z	58 \| moderate	13.353 \| fine	60.608 \| fine	13.033 \| good	1.043 \| good	4.991 \| good	0.229 \| good
2026-10-23T14:00:00.000Z	54 \| moderate	11.101 \| good	49.098 \| good	22.225 \| good	1.139 \| good	3.557 \| good	0.22 \| good
2026-10-23T15:00:00.000Z	49 \| good	9.21 \| good	41.245 \| good	28.88 \| good	1.251 \| good	2.276 \| good	0.206 \| good
2026-10-23T16:00:00.000Z	44 \| good	8.128 \| good	35.888 \| good	36.286 \| good	1.241 \| good	1.464 \| good	0.196 \| good
2026-10-23T17:00:00.000Z	39 \| good	6.946 \| good	30.489 \| good	41.769 \| good	1.117 \| good	1.002 \| good	0.187 \| good
2026-10-23T18:00:00.000Z	42 \| good	5.807 \| good	25.241 \| good	44.755 \| good	0.95 \| good	0.762 \| good	0.177 \| good
2026-10-23T19:00:00.000Z	42 \| good	5.963 \| good	26.183 \| good	44.951 \| good	0.796 \| good	0.667 \| good	0.168 \| good
2026-10-23T20:00:00.000Z	40 \| good	5.568 \| good	24.037 \| good	43.095 \| good	0.685 \| good	0.655 \| good	0.162 \| good
2026-10-23T21:00:00.000Z	37 \| good	5.94 \| good	26.507 \| good	40.292 \| good	0.632 \| good	0.762 \| good	0.16 \| good
2026-10-23T22:00:00.000Z	38 \| good	7.033 \| good	30.944 \| good	35.288 \| good	0.582 \| good	1.751 \| good	0.171 \| good
2026-10-23T23:00:00.000Z	33 \| good	6.359 \| good	28.191 \| good	30.676 \| good	0.557 \| good	6.502 \| good	0.228 \| good
2026-10-24T00:00:00.000Z	52 \| moderate	10.019 \| good	44.357 \| good	20.584 \| good	0.553 \| good	10.302 \| good	0.275 \| good
2026-10-24T01:00:00.000Z	52 \| moderate	9.516 \| good	42.405 \| good	19.149 \| good	0.544 \| good	11.301 \| good	0.286 \| good
2026-10-24T02:00:00.000Z	52 \| moderate	10.064 \| good	44.866 \| good	14.594 \| good	0.532 \| good	11.475 \| good	0.288 \| good
2026-10-24T03:00:00.000Z	54 \| moderate	11.137 \| good	49.466 \| good	13.907 \| good	0.517 \| good	11.697 \| good	0.291 \| good
2026-10-24T04:00:00.000Z	54 \| moderate	11.318 \| good	50.137 \| good	14.355 \| good	0.498 \| good	11.993 \| good	0.296 \| good
2026-10-24T05:00:00.000Z	54 \| moderate	11.445 \| good	50.475 \| good	11.726 \| good	0.475 \| good	11.92 \| good	0.3 \| good
2026-10-24T06:00:00.000Z	56 \| moderate	11.665 \| good	51.62 \| good	11.312 \| good	0.45 \| good	11.734 \| good	0.301 \| good
2026-10-24T07:00:00.000Z	56 \| moderate	12.011 \| good	53.943 \| good	9.197 \| good	0.424 \| good	11.712 \| good	0.303 \| good
2026-10-24T08:00:00.000Z	56 \| moderate	11.716 \| good	52.604 \| good	6.607 \| good	0.407 \| good	11.913 \| good	0.305 \| good
2026-10-24T09:00:00.000Z	54 \| moderate	11.085 \| good	48.875 \| good	6.796 \| good	0.404 \| good	12.276 \| good	0.306 \| good
2026-10-24T10:00:00.000Z	54 \| moderate	11.123 \| good	49.163 \| good	6.831 \| good	0.41 \| good	12.776 \| good	0.309 \| good
2026-10-24T11:00:00.000Z	52 \| moderate	9.508 \| good	42.233 \| good	5.396 \| good	0.413 \| good	13.539 \| good	0.314 \| good
2026-10-24T12:00:00.000Z	44 \| good	7.975 \| good	34.987 \| good	5.392 \| good	0.419 \| good	13.672 \| good	0.332 \| good
2026-10-24T13:00:00.000Z	38 \| good	7.078 \| good	31.211 \| good	7.898 \| good	0.411 \| good	11.269 \| good	0.372 \| good
2026-10-24T14:00:00.000Z	44 \| good	8.466 \| good	36.856 \| good	16.938 \| good	0.529 \| good	7.537 \| good	0.31 \| good
2026-10-24T15:00:00.000Z	44 \| good	8.409 \| good	37.021 \| good	27.68 \| good	0.647 \| good	4.792 \| good	0.258 \| good
2026-10-24T16:00:00.000Z	52 \| moderate	9.761 \| good	43.615 \| good	37.194 \| good	0.711 \| good	2.52 \| good	0.22 \| good
2026-10-24T17:00:00.000Z	52 \| moderate	10.389 \| good	46.144 \| good	43.82 \| good	0.726 \| good	1.344 \| good	0.2 \| good
2026-10-24T18:00:00.000Z	54 \| moderate	10.706 \| good	47.514 \| good	47.223 \| good	0.697 \| good	0.846 \| good	0.188 \| good
2026-10-24T19:00:00.000Z	54 \| moderate	11.263 \| good	49.921 \| good	48.827 \| good	0.639 \| good	0.67 \| good	0.18 \| good
2026-10-24T20:00:00.000Z	52 \| moderate	10.239 \| good	45.204 \| good	47.279 \| good	0.591 \| good	0.628 \| good	0.176 \| good

Knoxville

Get reliable air quality data to drive your business

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

0.28ppm

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 01:00:00 on 2026-10-22.

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 05:00:00 on 2026-10-22.

What is the AQI in Knoxville, Tennessee right now?

As of now, the AQI in Knoxville, Tennessee is 39, indicating Good conditions.

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

Knoxville, Tennessee air has the highest levels of O3.

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 4.23 μg/m³.

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

The PM₁₀ concentration in Knoxville, Tennessee is 18.974 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 0.294 ppm.

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

Currently, Knoxville, Tennessee has a sulfur dioxide (SO₂) concentration of 0.672 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 42.36 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 9.281 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-20T21:00:00.000Z	32 \| good	2.431 \| good	10.369 \| good	35.281 \| good	0.768 \| good	11.479 \| good	0.29 \| good
2026-10-20T22:00:00.000Z	31 \| good	2.563 \| good	10.536 \| good	33.687 \| good	0.791 \| good	11.188 \| good	0.264 \| good
2026-10-20T23:00:00.000Z	31 \| good	3.62 \| good	15.988 \| good	33.246 \| good	1.164 \| good	7.125 \| good	0.329 \| good
2026-10-21T00:00:00.000Z	27 \| good	4.679 \| good	20.352 \| good	28.755 \| good	0.602 \| good	15.702 \| good	0.44 \| good
2026-10-21T01:00:00.000Z	44 \| good	7.822 \| good	34.515 \| good	29.945 \| good	0.618 \| good	16.215 \| good	0.637 \| good
2026-10-21T02:00:00.000Z	49 \| good	8.621 \| good	37.776 \| good	20.146 \| good	0.8 \| good	17.072 \| good	0.676 \| good
2026-10-21T03:00:00.000Z	16 \| good	2.69 \| good	11.144 \| good	12.614 \| good	0.63 \| good	7.784 \| good	0.229 \| good
2026-10-21T04:00:00.000Z	38 \| good	7.285 \| good	32.204 \| good	15.514 \| good	0.545 \| good	17.636 \| good	0.662 \| good
2026-10-21T05:00:00.000Z	38 \| good	7.286 \| good	32.23 \| good	12.797 \| good	0.521 \| good	15.59 \| good	0.661 \| good
2026-10-21T06:00:00.000Z	44 \| good	7.596 \| good	33.704 \| good	11.87 \| good	0.559 \| good	19.003 \| good	0.647 \| good
2026-10-21T07:00:00.000Z	38 \| good	7.039 \| good	31.06 \| good	9.625 \| good	0.581 \| good	17.041 \| good	0.724 \| good
2026-10-21T08:00:00.000Z	38 \| good	6.605 \| good	29.199 \| good	7.462 \| good	0.465 \| good	16.405 \| good	0.598 \| good
2026-10-21T09:00:00.000Z	33 \| good	5.662 \| good	24.932 \| good	7.12 \| good	0.469 \| good	14.859 \| good	0.571 \| good
2026-10-21T10:00:00.000Z	27 \| good	5.195 \| good	22.302 \| good	8.417 \| good	0.498 \| good	13.53 \| good	0.581 \| good
2026-10-21T11:00:00.000Z	27 \| good	4.75 \| good	20.582 \| good	4.306 \| good	0.573 \| good	11.266 \| good	0.618 \| good
2026-10-21T12:00:00.000Z	27 \| good	4.713 \| good	20.824 \| good	5.394 \| good	0.555 \| good	12.935 \| good	0.641 \| good
2026-10-21T13:00:00.000Z	27 \| good	5.162 \| good	22.791 \| good	6.835 \| good	0.555 \| good	15.052 \| good	0.629 \| good
2026-10-21T14:00:00.000Z	38 \| good	6.537 \| good	29.136 \| good	7.217 \| good	0.696 \| good	16.575 \| good	0.701 \| good
2026-10-21T15:00:00.000Z	33 \| good	6.115 \| good	27.3 \| good	11.048 \| good	0.588 \| good	18.866 \| good	0.679 \| good
2026-10-21T16:00:00.000Z	33 \| good	5.805 \| good	25.673 \| good	16.408 \| good	0.499 \| good	21.401 \| good	0.507 \| good
2026-10-21T17:00:00.000Z	27 \| good	5.002 \| good	22.017 \| good	27.294 \| good	0.509 \| good	15.889 \| good	0.307 \| good
2026-10-21T18:00:00.000Z	26 \| good	4.409 \| good	19.018 \| good	28.088 \| good	0.553 \| good	12.842 \| good	0.248 \| good
2026-10-21T19:00:00.000Z	34 \| good	4 \| good	17.652 \| good	36.902 \| good	0.771 \| good	8.646 \| good	0.243 \| good
2026-10-21T20:00:00.000Z	38 \| good	3.743 \| good	16.678 \| good	41.256 \| good	0.76 \| good	7.808 \| good	0.342 \| good
2026-10-21T21:00:00.000Z	38 \| good	3.625 \| good	15.968 \| good	41.397 \| good	0.593 \| good	6.128 \| good	0.243 \| good
2026-10-21T22:00:00.000Z	40 \| good	3.582 \| good	15.772 \| good	42.537 \| good	0.739 \| good	7.569 \| good	0.256 \| good
2026-10-21T23:00:00.000Z	37 \| good	3.352 \| good	15.133 \| good	40.253 \| good	0.517 \| good	6.533 \| good	0.284 \| good
2026-10-22T00:00:00.000Z	35 \| good	3.479 \| good	15.665 \| good	38.374 \| good	0.605 \| good	15.741 \| good	0.391 \| good
2026-10-22T01:00:00.000Z	28 \| good	3.942 \| good	17.238 \| good	29.784 \| good	0.763 \| good	22.23 \| good	0.454 \| good
2026-10-22T02:00:00.000Z	33 \| good	6.339 \| good	28.476 \| good	29.353 \| good	0.638 \| good	24.749 \| good	0.529 \| good
2026-10-22T03:00:00.000Z	44 \| good	8.087 \| good	35.417 \| good	8.125 \| good	0.612 \| good	14.919 \| good	0.321 \| good
2026-10-22T04:00:00.000Z	44 \| good	8.072 \| good	35.941 \| good	15.721 \| good	0.452 \| good	16.111 \| good	0.727 \| good
2026-10-22T05:00:00.000Z	44 \| good	7.65 \| good	34.321 \| good	15.192 \| good	0.452 \| good	9.675 \| good	0.694 \| good
2026-10-22T06:00:00.000Z	38 \| good	6.846 \| good	29.827 \| good	12.209 \| good	0.436 \| good	19.054 \| good	0.709 \| good
2026-10-22T07:00:00.000Z	33 \| good	6.256 \| good	27.639 \| good	13.668 \| good	0.461 \| good	22.942 \| good	0.665 \| good
2026-10-22T08:00:00.000Z	38 \| good	6.894 \| good	30.678 \| good	7.551 \| good	0.462 \| good	20.873 \| good	0.608 \| good
2026-10-22T09:00:00.000Z	38 \| good	6.504 \| good	29.003 \| good	7.557 \| good	0.473 \| good	16.533 \| good	0.541 \| good
2026-10-22T10:00:00.000Z	33 \| good	6.054 \| good	26.86 \| good	6.221 \| good	0.593 \| good	12.268 \| good	0.534 \| good
2026-10-22T11:00:00.000Z	33 \| good	6.128 \| good	27.198 \| good	5.515 \| good	0.503 \| good	16.032 \| good	0.508 \| good
2026-10-22T12:00:00.000Z	44 \| good	7.513 \| good	33.057 \| good	4.307 \| good	0.72 \| good	20.604 \| good	0.602 \| good
2026-10-22T13:00:00.000Z	44 \| good	7.778 \| good	34.174 \| good	4.833 \| good	0.741 \| good	20.292 \| good	0.631 \| good
2026-10-22T14:00:00.000Z	38 \| good	6.652 \| good	29.263 \| good	7.725 \| good	0.792 \| good	19.903 \| good	0.599 \| good
2026-10-22T15:00:00.000Z	33 \| good	6.483 \| good	28.928 \| good	12.502 \| good	0.939 \| good	12.118 \| good	0.411 \| good
2026-10-22T16:00:00.000Z	27 \| good	5.465 \| good	23.994 \| good	15.624 \| good	0.859 \| good	14.319 \| good	0.463 \| good
2026-10-22T17:00:00.000Z	27 \| good	5.464 \| good	23.956 \| good	24.608 \| good	0.572 \| good	17.971 \| good	0.471 \| good
2026-10-22T18:00:00.000Z	33 \| good	4.709 \| good	20.357 \| good	36.102 \| good	0.601 \| good	14.03 \| good	0.36 \| good
2026-10-22T19:00:00.000Z	37 \| good	4.648 \| good	20.141 \| good	40.166 \| good	0.848 \| good	8.498 \| good	0.271 \| good
2026-10-22T20:00:00.000Z	39 \| good	4.23 \| good	18.974 \| good	42.36 \| good	0.672 \| good	9.281 \| good	0.294 \| good
2026-10-22T20:00:00.000Z	39 \| good	4.23 \| good	18.974 \| good	42.36 \| good	0.672 \| good	9.281 \| good	0.294 \| good
2026-10-22T21:00:00.000Z	38 \| good	6.697 \| good	29.979 \| good	36.875 \| good	0.565 \| good	0.622 \| good	0.149 \| good
2026-10-22T22:00:00.000Z	44 \| good	7.89 \| good	34.29 \| good	30.3 \| good	0.503 \| good	1.348 \| good	0.156 \| good
2026-10-22T23:00:00.000Z	44 \| good	8.122 \| good	35.651 \| good	28.822 \| good	0.459 \| good	4.718 \| good	0.196 \| good
2026-10-23T00:00:00.000Z	54 \| moderate	10.957 \| good	48.607 \| good	20.865 \| good	0.441 \| good	6.884 \| good	0.222 \| good
2026-10-23T01:00:00.000Z	54 \| moderate	11.187 \| good	49.544 \| good	18.136 \| good	0.432 \| good	6.717 \| good	0.221 \| good
2026-10-23T02:00:00.000Z	54 \| moderate	10.792 \| good	47.688 \| good	14.619 \| good	0.429 \| good	5.886 \| good	0.212 \| good
2026-10-23T03:00:00.000Z	56 \| moderate	11.848 \| good	52.733 \| good	13.009 \| good	0.446 \| good	4.984 \| good	0.205 \| good
2026-10-23T04:00:00.000Z	56 \| moderate	11.833 \| good	52.795 \| good	13.434 \| good	0.5 \| good	4.276 \| good	0.201 \| good
2026-10-23T05:00:00.000Z	56 \| moderate	12.052 \| good	54.127 \| good	12.781 \| good	0.596 \| good	3.709 \| good	0.198 \| good
2026-10-23T06:00:00.000Z	58 \| moderate	13.061 \| fine	58.538 \| fine	13.175 \| good	0.713 \| good	3.38 \| good	0.197 \| good
2026-10-23T07:00:00.000Z	60 \| moderate	13.514 \| fine	60.719 \| fine	13.128 \| good	0.814 \| good	3.282 \| good	0.196 \| good
2026-10-23T08:00:00.000Z	60 \| moderate	13.784 \| fine	62.447 \| fine	13.321 \| good	0.897 \| good	3.321 \| good	0.196 \| good
2026-10-23T09:00:00.000Z	60 \| moderate	13.523 \| fine	60.719 \| fine	13.874 \| good	0.977 \| good	3.358 \| good	0.196 \| good
2026-10-23T10:00:00.000Z	60 \| moderate	14.237 \| fine	63.93 \| fine	10.304 \| good	1.038 \| good	3.452 \| good	0.197 \| good
2026-10-23T11:00:00.000Z	62 \| moderate	14.722 \| fine	66.19 \| fine	8.069 \| good	1.065 \| good	3.731 \| good	0.2 \| good
2026-10-23T12:00:00.000Z	62 \| moderate	15.15 \| fine	68.154 \| fine	9.072 \| good	1.063 \| good	4.805 \| good	0.212 \| good
2026-10-23T13:00:00.000Z	58 \| moderate	13.353 \| fine	60.608 \| fine	13.033 \| good	1.043 \| good	4.991 \| good	0.229 \| good
2026-10-23T14:00:00.000Z	54 \| moderate	11.101 \| good	49.098 \| good	22.225 \| good	1.139 \| good	3.557 \| good	0.22 \| good
2026-10-23T15:00:00.000Z	49 \| good	9.21 \| good	41.245 \| good	28.88 \| good	1.251 \| good	2.276 \| good	0.206 \| good
2026-10-23T16:00:00.000Z	44 \| good	8.128 \| good	35.888 \| good	36.286 \| good	1.241 \| good	1.464 \| good	0.196 \| good
2026-10-23T17:00:00.000Z	39 \| good	6.946 \| good	30.489 \| good	41.769 \| good	1.117 \| good	1.002 \| good	0.187 \| good
2026-10-23T18:00:00.000Z	42 \| good	5.807 \| good	25.241 \| good	44.755 \| good	0.95 \| good	0.762 \| good	0.177 \| good
2026-10-23T19:00:00.000Z	42 \| good	5.963 \| good	26.183 \| good	44.951 \| good	0.796 \| good	0.667 \| good	0.168 \| good
2026-10-23T20:00:00.000Z	40 \| good	5.568 \| good	24.037 \| good	43.095 \| good	0.685 \| good	0.655 \| good	0.162 \| good
2026-10-23T21:00:00.000Z	37 \| good	5.94 \| good	26.507 \| good	40.292 \| good	0.632 \| good	0.762 \| good	0.16 \| good
2026-10-23T22:00:00.000Z	38 \| good	7.033 \| good	30.944 \| good	35.288 \| good	0.582 \| good	1.751 \| good	0.171 \| good
2026-10-23T23:00:00.000Z	33 \| good	6.359 \| good	28.191 \| good	30.676 \| good	0.557 \| good	6.502 \| good	0.228 \| good
2026-10-24T00:00:00.000Z	52 \| moderate	10.019 \| good	44.357 \| good	20.584 \| good	0.553 \| good	10.302 \| good	0.275 \| good
2026-10-24T01:00:00.000Z	52 \| moderate	9.516 \| good	42.405 \| good	19.149 \| good	0.544 \| good	11.301 \| good	0.286 \| good
2026-10-24T02:00:00.000Z	52 \| moderate	10.064 \| good	44.866 \| good	14.594 \| good	0.532 \| good	11.475 \| good	0.288 \| good
2026-10-24T03:00:00.000Z	54 \| moderate	11.137 \| good	49.466 \| good	13.907 \| good	0.517 \| good	11.697 \| good	0.291 \| good
2026-10-24T04:00:00.000Z	54 \| moderate	11.318 \| good	50.137 \| good	14.355 \| good	0.498 \| good	11.993 \| good	0.296 \| good
2026-10-24T05:00:00.000Z	54 \| moderate	11.445 \| good	50.475 \| good	11.726 \| good	0.475 \| good	11.92 \| good	0.3 \| good
2026-10-24T06:00:00.000Z	56 \| moderate	11.665 \| good	51.62 \| good	11.312 \| good	0.45 \| good	11.734 \| good	0.301 \| good
2026-10-24T07:00:00.000Z	56 \| moderate	12.011 \| good	53.943 \| good	9.197 \| good	0.424 \| good	11.712 \| good	0.303 \| good
2026-10-24T08:00:00.000Z	56 \| moderate	11.716 \| good	52.604 \| good	6.607 \| good	0.407 \| good	11.913 \| good	0.305 \| good
2026-10-24T09:00:00.000Z	54 \| moderate	11.085 \| good	48.875 \| good	6.796 \| good	0.404 \| good	12.276 \| good	0.306 \| good
2026-10-24T10:00:00.000Z	54 \| moderate	11.123 \| good	49.163 \| good	6.831 \| good	0.41 \| good	12.776 \| good	0.309 \| good
2026-10-24T11:00:00.000Z	52 \| moderate	9.508 \| good	42.233 \| good	5.396 \| good	0.413 \| good	13.539 \| good	0.314 \| good
2026-10-24T12:00:00.000Z	44 \| good	7.975 \| good	34.987 \| good	5.392 \| good	0.419 \| good	13.672 \| good	0.332 \| good
2026-10-24T13:00:00.000Z	38 \| good	7.078 \| good	31.211 \| good	7.898 \| good	0.411 \| good	11.269 \| good	0.372 \| good
2026-10-24T14:00:00.000Z	44 \| good	8.466 \| good	36.856 \| good	16.938 \| good	0.529 \| good	7.537 \| good	0.31 \| good
2026-10-24T15:00:00.000Z	44 \| good	8.409 \| good	37.021 \| good	27.68 \| good	0.647 \| good	4.792 \| good	0.258 \| good
2026-10-24T16:00:00.000Z	52 \| moderate	9.761 \| good	43.615 \| good	37.194 \| good	0.711 \| good	2.52 \| good	0.22 \| good
2026-10-24T17:00:00.000Z	52 \| moderate	10.389 \| good	46.144 \| good	43.82 \| good	0.726 \| good	1.344 \| good	0.2 \| good
2026-10-24T18:00:00.000Z	54 \| moderate	10.706 \| good	47.514 \| good	47.223 \| good	0.697 \| good	0.846 \| good	0.188 \| good
2026-10-24T19:00:00.000Z	54 \| moderate	11.263 \| good	49.921 \| good	48.827 \| good	0.639 \| good	0.67 \| good	0.18 \| good
2026-10-24T20:00:00.000Z	52 \| moderate	10.239 \| good	45.204 \| good	47.279 \| good	0.591 \| good	0.628 \| good	0.176 \| 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

Powell, Tennessee

Seymour, Tennessee

Alcoa, Tennessee

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Farragut, Tennessee

Clinton, Tennessee

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Frequently asked questions

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

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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?

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

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

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

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