What is the current concentration of PM10 in Chattanooga, Tennessee?

The current PM10 concentration at Chattanooga, Tennessee is 47.328 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Chattanooga, Tennessee?

The current sulfur dioxide (SO2) concentration at Chattanooga, Tennessee is 0.811 ppb.

What is the current concentration of ozone (O3) in Chattanooga, Tennessee?

The current ozone (O3) concentration at Chattanooga, Tennessee is 26.325 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Chattanooga, Tennessee?

The current nitrogen dioxide (NO2) concentration at Chattanooga, Tennessee is 10.4 ppb.

Chattanooga, Tennessee live air quality index now

Q: What is the current concentration of PM2.5 in Chattanooga, Tennessee?

The current PM2.5 concentration at Chattanooga, Tennessee is 10.869 μg/m3.

Stay updated with real-time air quality in Chattanooga, 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)

Moderate

Chattanooga, Tennessee

Last updated: ... (Local time)

Major air pollutants in Chattanooga, Tennessee

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

10.87 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

47.33 μg/m³

155

255

425

605+

Ozone (O₃)

26.32 ppb

201

201+

Sulfur Dioxide (SO₂)

0.81 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

10.40 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.39 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Chattanooga, Tennessee

Get Live Pollen Counts

Chattanooga, Tennessee

Scroll To Air Quality Map

Track live Chattanooga, Tennessee air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-21T01:00:00.000Z	30 \| good	4.062 \| good	18.124 \| good	31.597 \| good	0.482 \| good	18.847 \| good	0.347 \| good
2026-01-21T02:00:00.000Z	33 \| good	6.128 \| good	26.808 \| good	20.228 \| good	0.562 \| good	16.845 \| good	0.406 \| good
2026-01-21T03:00:00.000Z	38 \| good	6.918 \| good	30.787 \| good	7.227 \| good	1.687 \| good	11.091 \| good	0.275 \| good
2026-01-21T04:00:00.000Z	56 \| moderate	11.684 \| good	50.256 \| good	16.168 \| good	0.514 \| good	19.284 \| good	0.414 \| good
2026-01-21T05:00:00.000Z	62 \| moderate	15.287 \| fine	66.311 \| fine	12.496 \| good	0.855 \| good	17.716 \| good	0.457 \| good
2026-01-21T06:00:00.000Z	62 \| moderate	15.285 \| fine	66.178 \| fine	12.505 \| good	0.641 \| good	12.724 \| good	0.464 \| good
2026-01-21T07:00:00.000Z	71 \| moderate	19.851 \| fine	84.857 \| fine	10.747 \| good	0.642 \| good	10.616 \| good	0.568 \| good
2026-01-21T08:00:00.000Z	67 \| moderate	18.47 \| fine	79.364 \| fine	9.965 \| good	0.848 \| good	15.064 \| good	0.55 \| good
2026-01-21T09:00:00.000Z	64 \| moderate	16.038 \| fine	68.231 \| fine	15.435 \| good	0.88 \| good	13.942 \| good	0.471 \| good
2026-01-21T10:00:00.000Z	64 \| moderate	16.051 \| fine	68.296 \| fine	15.866 \| good	0.745 \| good	14.221 \| good	0.483 \| good
2026-01-21T11:00:00.000Z	62 \| moderate	14.906 \| fine	65.408 \| fine	19.18 \| good	0.72 \| good	15.662 \| good	0.453 \| good
2026-01-21T12:00:00.000Z	62 \| moderate	14.638 \| fine	63.346 \| fine	18.3 \| good	0.666 \| good	17.027 \| good	0.462 \| good
2026-01-21T13:00:00.000Z	64 \| moderate	15.977 \| fine	68.789 \| fine	9.973 \| good	0.773 \| good	14.9 \| good	0.682 \| good
2026-01-21T14:00:00.000Z	64 \| moderate	15.649 \| fine	68.86 \| fine	18.187 \| good	0.88 \| good	21.156 \| good	0.629 \| good
2026-01-21T15:00:00.000Z	66 \| moderate	16.599 \| fine	73.786 \| fine	16.578 \| good	0.846 \| good	14.214 \| good	0.669 \| good
2026-01-21T16:00:00.000Z	60 \| moderate	13.804 \| fine	61.996 \| fine	25.791 \| good	0.689 \| good	20.24 \| good	0.614 \| good
2026-01-21T17:00:00.000Z	60 \| moderate	13.625 \| fine	61.069 \| fine	29.449 \| good	0.547 \| good	15.071 \| good	0.413 \| good
2026-01-21T18:00:00.000Z	56 \| moderate	11.611 \| good	50.194 \| good	30.543 \| good	0.521 \| good	13.911 \| good	0.355 \| good
2026-01-21T19:00:00.000Z	56 \| moderate	11.671 \| good	50.062 \| good	28.704 \| good	0.47 \| good	10.881 \| good	0.265 \| good
2026-01-21T20:00:00.000Z	54 \| moderate	10.997 \| good	47.13 \| good	29.142 \| good	0.481 \| good	11.481 \| good	0.338 \| good
2026-01-21T21:00:00.000Z	54 \| moderate	10.999 \| good	47.199 \| good	31.978 \| good	0.549 \| good	14.062 \| good	0.31 \| good
2026-01-21T22:00:00.000Z	54 \| moderate	10.513 \| good	45.395 \| good	38.201 \| good	0.533 \| good	10.323 \| good	0.31 \| good
2026-01-21T23:00:00.000Z	54 \| moderate	10.532 \| good	45.459 \| good	35.708 \| good	0.526 \| good	11.217 \| good	0.307 \| good
2026-01-22T00:00:00.000Z	54 \| moderate	10.534 \| good	45.494 \| good	34.195 \| good	0.766 \| good	14.832 \| good	0.447 \| good
2026-01-22T01:00:00.000Z	54 \| moderate	11.47 \| good	49.362 \| good	34.534 \| good	0.716 \| good	12.586 \| good	0.447 \| good
2026-01-22T02:00:00.000Z	69 \| moderate	18.857 \| fine	81.272 \| fine	26.112 \| good	0.677 \| good	11.716 \| good	0.475 \| good
2026-01-22T03:00:00.000Z	69 \| moderate	19.346 \| fine	81.627 \| fine	23.623 \| good	0.731 \| good	13.756 \| good	0.515 \| good
2026-01-22T04:00:00.000Z	73 \| moderate	20.839 \| fine	82.988 \| fine	23.653 \| good	0.723 \| good	12.606 \| good	0.534 \| good
2026-01-22T05:00:00.000Z	160 \| unhealthy	68.538 \| poor	256.415 \| poor	22.609 \| good	0.623 \| good	11.025 \| good	0.587 \| good
2026-01-22T06:00:00.000Z	158 \| unhealthy	65.319 \| poor	253.088 \| moderate	24.346 \| good	0.622 \| good	19.341 \| good	0.47 \| good
2026-01-22T07:00:00.000Z	155 \| unhealthy	61.278 \| poor	249.217 \| moderate	26.537 \| good	0.567 \| good	25.064 \| good	0.494 \| good
2026-01-22T08:00:00.000Z	154 \| unhealthy	59.577 \| poor	247.164 \| moderate	14.741 \| good	0.625 \| good	23.605 \| good	0.343 \| good
2026-01-22T09:00:00.000Z	154 \| unhealthy	59.768 \| poor	246.491 \| moderate	19.396 \| good	0.547 \| good	22.128 \| good	0.292 \| good
2026-01-22T10:00:00.000Z	153 \| unhealthy	59.182 \| poor	245.81 \| moderate	22.547 \| good	0.431 \| good	21.106 \| good	0.261 \| good
2026-01-22T11:00:00.000Z	153 \| unhealthy	58.813 \| poor	245.576 \| moderate	22.627 \| good	0.429 \| good	22.786 \| good	0.338 \| good
2026-01-22T12:00:00.000Z	153 \| unhealthy	57.884 \| poor	245.386 \| moderate	18.457 \| good	0.451 \| good	17.331 \| good	0.31 \| good
2026-01-22T13:00:00.000Z	149 \| sensitive	55.015 \| moderate	241.696 \| moderate	21.351 \| good	2.852 \| good	8.091 \| good	0.374 \| good
2026-01-22T14:00:00.000Z	144 \| sensitive	53.459 \| moderate	236.136 \| moderate	23.363 \| good	0.423 \| good	7.571 \| good	0.32 \| good
2026-01-22T15:00:00.000Z	137 \| sensitive	49.893 \| moderate	219.336 \| moderate	21.771 \| good	0.438 \| good	4.098 \| good	0.318 \| good
2026-01-22T16:00:00.000Z	139 \| sensitive	50.569 \| moderate	223.146 \| moderate	24.465 \| good	0.993 \| good	3.133 \| good	0.379 \| good
2026-01-22T17:00:00.000Z	124 \| sensitive	44.968 \| moderate	196.588 \| moderate	32.131 \| good	0.824 \| good	6.407 \| good	0.364 \| good
2026-01-22T18:00:00.000Z	102 \| sensitive	36.273 \| moderate	154.909 \| fine	30.543 \| good	1.291 \| good	5.208 \| good	0.364 \| good
2026-01-22T19:00:00.000Z	82 \| moderate	26.154 \| fine	111.42 \| fine	33.388 \| good	1.277 \| good	4.699 \| good	0.291 \| good
2026-01-22T20:00:00.000Z	69 \| moderate	18.76 \| fine	81.179 \| fine	33.86 \| good	0.907 \| good	4.416 \| good	0.337 \| good
2026-01-22T21:00:00.000Z	56 \| moderate	12.378 \| fine	54.697 \| good	35.248 \| good	0.709 \| good	4.289 \| good	0.278 \| good
2026-01-22T22:00:00.000Z	56 \| moderate	12.274 \| fine	54.701 \| good	36.682 \| good	0.751 \| good	7.085 \| good	0.371 \| good
2026-01-22T23:00:00.000Z	56 \| moderate	11.787 \| good	51.95 \| good	30.108 \| good	1.396 \| good	8.866 \| good	0.364 \| good
2026-01-23T00:00:00.000Z	54 \| moderate	10.869 \| good	47.328 \| good	26.325 \| good	0.811 \| good	10.4 \| good	0.39 \| good
2026-01-23T00:00:00.000Z	54 \| moderate	10.869 \| good	47.328 \| good	26.325 \| good	0.811 \| good	10.4 \| good	0.39 \| good
2026-01-23T01:00:00.000Z	44 \| good	8.305 \| good	36.356 \| good	19.938 \| good	0.956 \| good	5.372 \| good	0.216 \| good
2026-01-23T02:00:00.000Z	33 \| good	5.56 \| good	23.957 \| good	20.632 \| good	0.99 \| good	5.109 \| good	0.214 \| good
2026-01-23T03:00:00.000Z	38 \| good	6.567 \| good	28.97 \| good	22.866 \| good	1.024 \| good	4.846 \| good	0.212 \| good
2026-01-23T04:00:00.000Z	38 \| good	6.933 \| good	30.686 \| good	24.857 \| good	1.024 \| good	4.378 \| good	0.204 \| good
2026-01-23T05:00:00.000Z	44 \| good	7.599 \| good	33.335 \| good	23.821 \| good	1.025 \| good	3.911 \| good	0.197 \| good
2026-01-23T06:00:00.000Z	44 \| good	7.815 \| good	34.575 \| good	25.708 \| good	1.026 \| good	3.443 \| good	0.19 \| good
2026-01-23T07:00:00.000Z	49 \| good	8.641 \| good	38.169 \| good	21.548 \| good	1.024 \| good	3.253 \| good	0.187 \| good
2026-01-23T08:00:00.000Z	44 \| good	7.888 \| good	34.701 \| good	19.475 \| good	1.023 \| good	3.063 \| good	0.185 \| good
2026-01-23T09:00:00.000Z	38 \| good	7.178 \| good	31.527 \| good	21.453 \| good	1.021 \| good	2.873 \| good	0.182 \| good
2026-01-23T10:00:00.000Z	33 \| good	5.95 \| good	26.19 \| good	19.82 \| good	1.022 \| good	2.779 \| good	0.18 \| good
2026-01-23T11:00:00.000Z	33 \| good	5.795 \| good	25.338 \| good	16.218 \| good	1.023 \| good	2.686 \| good	0.178 \| good
2026-01-23T12:00:00.000Z	44 \| good	7.856 \| good	34.503 \| good	16.06 \| good	1.024 \| good	2.592 \| good	0.176 \| good
2026-01-23T13:00:00.000Z	33 \| good	6.35 \| good	28.252 \| good	18.741 \| good	1.072 \| good	2.665 \| good	0.177 \| good
2026-01-23T14:00:00.000Z	18 \| good	3.378 \| good	15.024 \| good	19.084 \| good	1.12 \| good	2.739 \| good	0.178 \| good
2026-01-23T15:00:00.000Z	18 \| good	1.578 \| good	6.407 \| good	18.862 \| good	1.167 \| good	2.812 \| good	0.179 \| good
2026-01-23T16:00:00.000Z	22 \| good	3.549 \| good	15.93 \| good	22.916 \| good	1.481 \| good	2.41 \| good	0.173 \| good
2026-01-23T17:00:00.000Z	24 \| good	4.138 \| good	18.151 \| good	26.341 \| good	1.796 \| good	2.008 \| good	0.168 \| good
2026-01-23T18:00:00.000Z	24 \| good	4.426 \| good	19.295 \| good	25.586 \| good	2.11 \| good	1.606 \| good	0.163 \| good
2026-01-23T19:00:00.000Z	24 \| good	3.12 \| good	13.438 \| good	25.641 \| good	2.187 \| good	1.731 \| good	0.165 \| good
2026-01-23T20:00:00.000Z	26 \| good	2.769 \| good	11.368 \| good	28.307 \| good	2.265 \| good	1.856 \| good	0.168 \| good
2026-01-23T21:00:00.000Z	26 \| good	3.864 \| good	16.821 \| good	27.958 \| good	2.342 \| good	1.98 \| good	0.17 \| good
2026-01-23T22:00:00.000Z	27 \| good	4.934 \| good	21.422 \| good	27.32 \| good	2.14 \| good	2.357 \| good	0.172 \| good
2026-01-23T23:00:00.000Z	33 \| good	6.253 \| good	27.71 \| good	23.656 \| good	1.938 \| good	2.734 \| good	0.173 \| good
2026-01-24T00:00:00.000Z	27 \| good	4.826 \| good	21 \| good	22.005 \| good	1.736 \| good	3.111 \| good	0.175 \| good
2026-01-24T01:00:00.000Z	38 \| good	6.628 \| good	29.512 \| good	19.144 \| good	1.673 \| good	2.904 \| good	0.168 \| good
2026-01-24T02:00:00.000Z	27 \| good	4.643 \| good	20.273 \| good	17.737 \| good	1.61 \| good	2.697 \| good	0.161 \| good
2026-01-24T03:00:00.000Z	27 \| good	5.384 \| good	23.096 \| good	16.859 \| good	1.547 \| good	2.49 \| good	0.154 \| good
2026-01-24T04:00:00.000Z	33 \| good	5.786 \| good	25.217 \| good	15.967 \| good	1.694 \| good	2.448 \| good	0.152 \| good
2026-01-24T05:00:00.000Z	38 \| good	7.083 \| good	31.256 \| good	15.622 \| good	1.841 \| good	2.406 \| good	0.15 \| good
2026-01-24T06:00:00.000Z	44 \| good	7.801 \| good	34.048 \| good	18.511 \| good	1.988 \| good	2.364 \| good	0.148 \| good
2026-01-24T07:00:00.000Z	44 \| good	7.818 \| good	34.335 \| good	19.808 \| good	2.068 \| good	2.357 \| good	0.148 \| good
2026-01-24T08:00:00.000Z	38 \| good	7.139 \| good	31.629 \| good	23.251 \| good	2.148 \| good	2.351 \| good	0.149 \| good
2026-01-24T09:00:00.000Z	38 \| good	7.218 \| good	31.686 \| good	22.978 \| good	2.229 \| good	2.345 \| good	0.15 \| good
2026-01-24T10:00:00.000Z	33 \| good	6.43 \| good	28.632 \| good	20.221 \| good	2.091 \| good	2.396 \| good	0.151 \| good
2026-01-24T11:00:00.000Z	27 \| good	4.944 \| good	21.328 \| good	19.097 \| good	1.953 \| good	2.447 \| good	0.153 \| good
2026-01-24T12:00:00.000Z	27 \| good	5.068 \| good	21.97 \| good	18.729 \| good	1.815 \| good	2.498 \| good	0.154 \| good
2026-01-24T13:00:00.000Z	27 \| good	4.954 \| good	21.379 \| good	16.948 \| good	1.78 \| good	3.202 \| good	0.162 \| good
2026-01-24T14:00:00.000Z	22 \| good	4.459 \| good	19.381 \| good	13.469 \| good	1.746 \| good	3.907 \| good	0.169 \| good
2026-01-24T15:00:00.000Z	16 \| good	3.074 \| good	12.549 \| good	11.315 \| good	1.711 \| good	4.612 \| good	0.177 \| good
2026-01-24T16:00:00.000Z	16 \| good	2.837 \| good	11.57 \| good	13.353 \| good	1.765 \| good	4.498 \| good	0.178 \| good
2026-01-24T17:00:00.000Z	27 \| good	5.111 \| good	22.169 \| good	12.517 \| good	1.818 \| good	4.384 \| good	0.179 \| good
2026-01-24T18:00:00.000Z	33 \| good	5.71 \| good	24.597 \| good	9.497 \| good	1.871 \| good	4.27 \| good	0.181 \| good
2026-01-24T19:00:00.000Z	38 \| good	6.889 \| good	30.335 \| good	8.987 \| good	1.873 \| good	4.283 \| good	0.181 \| good
2026-01-24T20:00:00.000Z	44 \| good	8.36 \| good	36.829 \| good	9.986 \| good	1.875 \| good	4.296 \| good	0.18 \| good
2026-01-24T21:00:00.000Z	44 \| good	8.073 \| good	35.478 \| good	8.158 \| good	1.876 \| good	4.309 \| good	0.18 \| good
2026-01-24T22:00:00.000Z	56 \| moderate	11.899 \| good	53.086 \| good	9.649 \| good	1.851 \| good	4.814 \| good	0.184 \| good
2026-01-24T23:00:00.000Z	52 \| moderate	10.293 \| good	45.847 \| good	8.309 \| good	1.826 \| good	5.319 \| good	0.188 \| good
2026-01-25T00:00:00.000Z	58 \| moderate	12.732 \| fine	12.945 \| good	26.035 \| good	1.792 \| good	5.804 \| good	0.192 \| good

Chattanooga

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Chattanooga, Tennessee air quality map: Track AQI near you

0.35ppm

How accurate is Tennessee, USA air quality data?

Air quality data and pollutant measurements for Tennessee, 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 Chattanooga, Tennessee updated?

The air quality for Chattanooga, Tennessee is updated every hour.

When was the worst air quality at Chattanooga, Tennessee in the last 24 hrs?

The worst air quality in Chattanooga, Tennessee in the last 24 hours was observed at 05:00:00 on 2026-01-22.

When was the best air quality at Chattanooga, Tennessee in the last 24 hrs?

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

What is the current air quality in Chattanooga, Tennessee?

The current air quality in Chattanooga, Tennessee is 54, categorized as Moderate based on real-time data.

What pollutant is the most common in Chattanooga, Tennessee?

The most common pollutant in Chattanooga, Tennessee is PM2.5.

What should I do if the air quality in Chattanooga, Tennessee is poor?

If the air quality in Chattanooga, Tennessee is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Chattanooga, Tennessee?

The current PM_2.5 concentration at Chattanooga, Tennessee is 10.869 μg/m³.

What is the current concentration of PM₁₀ in Chattanooga, Tennessee?

The current PM₁₀ concentration at Chattanooga, Tennessee is 47.328 μg/m³.

What is the current concentration of carbon monoxide (CO) in Chattanooga, Tennessee?

The current carbon monoxide (CO) concentration at Chattanooga, Tennessee is 0.39 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Chattanooga, Tennessee?

The current sulfur dioxide (SO₂) concentration at Chattanooga, Tennessee is 0.811 ppb.

What is the current concentration of ozone (O₃) in Chattanooga, Tennessee?

The current ozone (O₃) concentration at Chattanooga, Tennessee is 26.325 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Chattanooga, Tennessee?

The current nitrogen dioxide (NO₂) concentration at Chattanooga, Tennessee is 10.4 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-21T01:00:00.000Z	30 \| good	4.062 \| good	18.124 \| good	31.597 \| good	0.482 \| good	18.847 \| good	0.347 \| good
2026-01-21T02:00:00.000Z	33 \| good	6.128 \| good	26.808 \| good	20.228 \| good	0.562 \| good	16.845 \| good	0.406 \| good
2026-01-21T03:00:00.000Z	38 \| good	6.918 \| good	30.787 \| good	7.227 \| good	1.687 \| good	11.091 \| good	0.275 \| good
2026-01-21T04:00:00.000Z	56 \| moderate	11.684 \| good	50.256 \| good	16.168 \| good	0.514 \| good	19.284 \| good	0.414 \| good
2026-01-21T05:00:00.000Z	62 \| moderate	15.287 \| fine	66.311 \| fine	12.496 \| good	0.855 \| good	17.716 \| good	0.457 \| good
2026-01-21T06:00:00.000Z	62 \| moderate	15.285 \| fine	66.178 \| fine	12.505 \| good	0.641 \| good	12.724 \| good	0.464 \| good
2026-01-21T07:00:00.000Z	71 \| moderate	19.851 \| fine	84.857 \| fine	10.747 \| good	0.642 \| good	10.616 \| good	0.568 \| good
2026-01-21T08:00:00.000Z	67 \| moderate	18.47 \| fine	79.364 \| fine	9.965 \| good	0.848 \| good	15.064 \| good	0.55 \| good
2026-01-21T09:00:00.000Z	64 \| moderate	16.038 \| fine	68.231 \| fine	15.435 \| good	0.88 \| good	13.942 \| good	0.471 \| good
2026-01-21T10:00:00.000Z	64 \| moderate	16.051 \| fine	68.296 \| fine	15.866 \| good	0.745 \| good	14.221 \| good	0.483 \| good
2026-01-21T11:00:00.000Z	62 \| moderate	14.906 \| fine	65.408 \| fine	19.18 \| good	0.72 \| good	15.662 \| good	0.453 \| good
2026-01-21T12:00:00.000Z	62 \| moderate	14.638 \| fine	63.346 \| fine	18.3 \| good	0.666 \| good	17.027 \| good	0.462 \| good
2026-01-21T13:00:00.000Z	64 \| moderate	15.977 \| fine	68.789 \| fine	9.973 \| good	0.773 \| good	14.9 \| good	0.682 \| good
2026-01-21T14:00:00.000Z	64 \| moderate	15.649 \| fine	68.86 \| fine	18.187 \| good	0.88 \| good	21.156 \| good	0.629 \| good
2026-01-21T15:00:00.000Z	66 \| moderate	16.599 \| fine	73.786 \| fine	16.578 \| good	0.846 \| good	14.214 \| good	0.669 \| good
2026-01-21T16:00:00.000Z	60 \| moderate	13.804 \| fine	61.996 \| fine	25.791 \| good	0.689 \| good	20.24 \| good	0.614 \| good
2026-01-21T17:00:00.000Z	60 \| moderate	13.625 \| fine	61.069 \| fine	29.449 \| good	0.547 \| good	15.071 \| good	0.413 \| good
2026-01-21T18:00:00.000Z	56 \| moderate	11.611 \| good	50.194 \| good	30.543 \| good	0.521 \| good	13.911 \| good	0.355 \| good
2026-01-21T19:00:00.000Z	56 \| moderate	11.671 \| good	50.062 \| good	28.704 \| good	0.47 \| good	10.881 \| good	0.265 \| good
2026-01-21T20:00:00.000Z	54 \| moderate	10.997 \| good	47.13 \| good	29.142 \| good	0.481 \| good	11.481 \| good	0.338 \| good
2026-01-21T21:00:00.000Z	54 \| moderate	10.999 \| good	47.199 \| good	31.978 \| good	0.549 \| good	14.062 \| good	0.31 \| good
2026-01-21T22:00:00.000Z	54 \| moderate	10.513 \| good	45.395 \| good	38.201 \| good	0.533 \| good	10.323 \| good	0.31 \| good
2026-01-21T23:00:00.000Z	54 \| moderate	10.532 \| good	45.459 \| good	35.708 \| good	0.526 \| good	11.217 \| good	0.307 \| good
2026-01-22T00:00:00.000Z	54 \| moderate	10.534 \| good	45.494 \| good	34.195 \| good	0.766 \| good	14.832 \| good	0.447 \| good
2026-01-22T01:00:00.000Z	54 \| moderate	11.47 \| good	49.362 \| good	34.534 \| good	0.716 \| good	12.586 \| good	0.447 \| good
2026-01-22T02:00:00.000Z	69 \| moderate	18.857 \| fine	81.272 \| fine	26.112 \| good	0.677 \| good	11.716 \| good	0.475 \| good
2026-01-22T03:00:00.000Z	69 \| moderate	19.346 \| fine	81.627 \| fine	23.623 \| good	0.731 \| good	13.756 \| good	0.515 \| good
2026-01-22T04:00:00.000Z	73 \| moderate	20.839 \| fine	82.988 \| fine	23.653 \| good	0.723 \| good	12.606 \| good	0.534 \| good
2026-01-22T05:00:00.000Z	160 \| unhealthy	68.538 \| poor	256.415 \| poor	22.609 \| good	0.623 \| good	11.025 \| good	0.587 \| good
2026-01-22T06:00:00.000Z	158 \| unhealthy	65.319 \| poor	253.088 \| moderate	24.346 \| good	0.622 \| good	19.341 \| good	0.47 \| good
2026-01-22T07:00:00.000Z	155 \| unhealthy	61.278 \| poor	249.217 \| moderate	26.537 \| good	0.567 \| good	25.064 \| good	0.494 \| good
2026-01-22T08:00:00.000Z	154 \| unhealthy	59.577 \| poor	247.164 \| moderate	14.741 \| good	0.625 \| good	23.605 \| good	0.343 \| good
2026-01-22T09:00:00.000Z	154 \| unhealthy	59.768 \| poor	246.491 \| moderate	19.396 \| good	0.547 \| good	22.128 \| good	0.292 \| good
2026-01-22T10:00:00.000Z	153 \| unhealthy	59.182 \| poor	245.81 \| moderate	22.547 \| good	0.431 \| good	21.106 \| good	0.261 \| good
2026-01-22T11:00:00.000Z	153 \| unhealthy	58.813 \| poor	245.576 \| moderate	22.627 \| good	0.429 \| good	22.786 \| good	0.338 \| good
2026-01-22T12:00:00.000Z	153 \| unhealthy	57.884 \| poor	245.386 \| moderate	18.457 \| good	0.451 \| good	17.331 \| good	0.31 \| good
2026-01-22T13:00:00.000Z	149 \| sensitive	55.015 \| moderate	241.696 \| moderate	21.351 \| good	2.852 \| good	8.091 \| good	0.374 \| good
2026-01-22T14:00:00.000Z	144 \| sensitive	53.459 \| moderate	236.136 \| moderate	23.363 \| good	0.423 \| good	7.571 \| good	0.32 \| good
2026-01-22T15:00:00.000Z	137 \| sensitive	49.893 \| moderate	219.336 \| moderate	21.771 \| good	0.438 \| good	4.098 \| good	0.318 \| good
2026-01-22T16:00:00.000Z	139 \| sensitive	50.569 \| moderate	223.146 \| moderate	24.465 \| good	0.993 \| good	3.133 \| good	0.379 \| good
2026-01-22T17:00:00.000Z	124 \| sensitive	44.968 \| moderate	196.588 \| moderate	32.131 \| good	0.824 \| good	6.407 \| good	0.364 \| good
2026-01-22T18:00:00.000Z	102 \| sensitive	36.273 \| moderate	154.909 \| fine	30.543 \| good	1.291 \| good	5.208 \| good	0.364 \| good
2026-01-22T19:00:00.000Z	82 \| moderate	26.154 \| fine	111.42 \| fine	33.388 \| good	1.277 \| good	4.699 \| good	0.291 \| good
2026-01-22T20:00:00.000Z	69 \| moderate	18.76 \| fine	81.179 \| fine	33.86 \| good	0.907 \| good	4.416 \| good	0.337 \| good
2026-01-22T21:00:00.000Z	56 \| moderate	12.378 \| fine	54.697 \| good	35.248 \| good	0.709 \| good	4.289 \| good	0.278 \| good
2026-01-22T22:00:00.000Z	56 \| moderate	12.274 \| fine	54.701 \| good	36.682 \| good	0.751 \| good	7.085 \| good	0.371 \| good
2026-01-22T23:00:00.000Z	56 \| moderate	11.787 \| good	51.95 \| good	30.108 \| good	1.396 \| good	8.866 \| good	0.364 \| good
2026-01-23T00:00:00.000Z	54 \| moderate	10.869 \| good	47.328 \| good	26.325 \| good	0.811 \| good	10.4 \| good	0.39 \| good
2026-01-23T00:00:00.000Z	54 \| moderate	10.869 \| good	47.328 \| good	26.325 \| good	0.811 \| good	10.4 \| good	0.39 \| good
2026-01-23T01:00:00.000Z	44 \| good	8.305 \| good	36.356 \| good	19.938 \| good	0.956 \| good	5.372 \| good	0.216 \| good
2026-01-23T02:00:00.000Z	33 \| good	5.56 \| good	23.957 \| good	20.632 \| good	0.99 \| good	5.109 \| good	0.214 \| good
2026-01-23T03:00:00.000Z	38 \| good	6.567 \| good	28.97 \| good	22.866 \| good	1.024 \| good	4.846 \| good	0.212 \| good
2026-01-23T04:00:00.000Z	38 \| good	6.933 \| good	30.686 \| good	24.857 \| good	1.024 \| good	4.378 \| good	0.204 \| good
2026-01-23T05:00:00.000Z	44 \| good	7.599 \| good	33.335 \| good	23.821 \| good	1.025 \| good	3.911 \| good	0.197 \| good
2026-01-23T06:00:00.000Z	44 \| good	7.815 \| good	34.575 \| good	25.708 \| good	1.026 \| good	3.443 \| good	0.19 \| good
2026-01-23T07:00:00.000Z	49 \| good	8.641 \| good	38.169 \| good	21.548 \| good	1.024 \| good	3.253 \| good	0.187 \| good
2026-01-23T08:00:00.000Z	44 \| good	7.888 \| good	34.701 \| good	19.475 \| good	1.023 \| good	3.063 \| good	0.185 \| good
2026-01-23T09:00:00.000Z	38 \| good	7.178 \| good	31.527 \| good	21.453 \| good	1.021 \| good	2.873 \| good	0.182 \| good
2026-01-23T10:00:00.000Z	33 \| good	5.95 \| good	26.19 \| good	19.82 \| good	1.022 \| good	2.779 \| good	0.18 \| good
2026-01-23T11:00:00.000Z	33 \| good	5.795 \| good	25.338 \| good	16.218 \| good	1.023 \| good	2.686 \| good	0.178 \| good
2026-01-23T12:00:00.000Z	44 \| good	7.856 \| good	34.503 \| good	16.06 \| good	1.024 \| good	2.592 \| good	0.176 \| good
2026-01-23T13:00:00.000Z	33 \| good	6.35 \| good	28.252 \| good	18.741 \| good	1.072 \| good	2.665 \| good	0.177 \| good
2026-01-23T14:00:00.000Z	18 \| good	3.378 \| good	15.024 \| good	19.084 \| good	1.12 \| good	2.739 \| good	0.178 \| good
2026-01-23T15:00:00.000Z	18 \| good	1.578 \| good	6.407 \| good	18.862 \| good	1.167 \| good	2.812 \| good	0.179 \| good
2026-01-23T16:00:00.000Z	22 \| good	3.549 \| good	15.93 \| good	22.916 \| good	1.481 \| good	2.41 \| good	0.173 \| good
2026-01-23T17:00:00.000Z	24 \| good	4.138 \| good	18.151 \| good	26.341 \| good	1.796 \| good	2.008 \| good	0.168 \| good
2026-01-23T18:00:00.000Z	24 \| good	4.426 \| good	19.295 \| good	25.586 \| good	2.11 \| good	1.606 \| good	0.163 \| good
2026-01-23T19:00:00.000Z	24 \| good	3.12 \| good	13.438 \| good	25.641 \| good	2.187 \| good	1.731 \| good	0.165 \| good
2026-01-23T20:00:00.000Z	26 \| good	2.769 \| good	11.368 \| good	28.307 \| good	2.265 \| good	1.856 \| good	0.168 \| good
2026-01-23T21:00:00.000Z	26 \| good	3.864 \| good	16.821 \| good	27.958 \| good	2.342 \| good	1.98 \| good	0.17 \| good
2026-01-23T22:00:00.000Z	27 \| good	4.934 \| good	21.422 \| good	27.32 \| good	2.14 \| good	2.357 \| good	0.172 \| good
2026-01-23T23:00:00.000Z	33 \| good	6.253 \| good	27.71 \| good	23.656 \| good	1.938 \| good	2.734 \| good	0.173 \| good
2026-01-24T00:00:00.000Z	27 \| good	4.826 \| good	21 \| good	22.005 \| good	1.736 \| good	3.111 \| good	0.175 \| good
2026-01-24T01:00:00.000Z	38 \| good	6.628 \| good	29.512 \| good	19.144 \| good	1.673 \| good	2.904 \| good	0.168 \| good
2026-01-24T02:00:00.000Z	27 \| good	4.643 \| good	20.273 \| good	17.737 \| good	1.61 \| good	2.697 \| good	0.161 \| good
2026-01-24T03:00:00.000Z	27 \| good	5.384 \| good	23.096 \| good	16.859 \| good	1.547 \| good	2.49 \| good	0.154 \| good
2026-01-24T04:00:00.000Z	33 \| good	5.786 \| good	25.217 \| good	15.967 \| good	1.694 \| good	2.448 \| good	0.152 \| good
2026-01-24T05:00:00.000Z	38 \| good	7.083 \| good	31.256 \| good	15.622 \| good	1.841 \| good	2.406 \| good	0.15 \| good
2026-01-24T06:00:00.000Z	44 \| good	7.801 \| good	34.048 \| good	18.511 \| good	1.988 \| good	2.364 \| good	0.148 \| good
2026-01-24T07:00:00.000Z	44 \| good	7.818 \| good	34.335 \| good	19.808 \| good	2.068 \| good	2.357 \| good	0.148 \| good
2026-01-24T08:00:00.000Z	38 \| good	7.139 \| good	31.629 \| good	23.251 \| good	2.148 \| good	2.351 \| good	0.149 \| good
2026-01-24T09:00:00.000Z	38 \| good	7.218 \| good	31.686 \| good	22.978 \| good	2.229 \| good	2.345 \| good	0.15 \| good
2026-01-24T10:00:00.000Z	33 \| good	6.43 \| good	28.632 \| good	20.221 \| good	2.091 \| good	2.396 \| good	0.151 \| good
2026-01-24T11:00:00.000Z	27 \| good	4.944 \| good	21.328 \| good	19.097 \| good	1.953 \| good	2.447 \| good	0.153 \| good
2026-01-24T12:00:00.000Z	27 \| good	5.068 \| good	21.97 \| good	18.729 \| good	1.815 \| good	2.498 \| good	0.154 \| good
2026-01-24T13:00:00.000Z	27 \| good	4.954 \| good	21.379 \| good	16.948 \| good	1.78 \| good	3.202 \| good	0.162 \| good
2026-01-24T14:00:00.000Z	22 \| good	4.459 \| good	19.381 \| good	13.469 \| good	1.746 \| good	3.907 \| good	0.169 \| good
2026-01-24T15:00:00.000Z	16 \| good	3.074 \| good	12.549 \| good	11.315 \| good	1.711 \| good	4.612 \| good	0.177 \| good
2026-01-24T16:00:00.000Z	16 \| good	2.837 \| good	11.57 \| good	13.353 \| good	1.765 \| good	4.498 \| good	0.178 \| good
2026-01-24T17:00:00.000Z	27 \| good	5.111 \| good	22.169 \| good	12.517 \| good	1.818 \| good	4.384 \| good	0.179 \| good
2026-01-24T18:00:00.000Z	33 \| good	5.71 \| good	24.597 \| good	9.497 \| good	1.871 \| good	4.27 \| good	0.181 \| good
2026-01-24T19:00:00.000Z	38 \| good	6.889 \| good	30.335 \| good	8.987 \| good	1.873 \| good	4.283 \| good	0.181 \| good
2026-01-24T20:00:00.000Z	44 \| good	8.36 \| good	36.829 \| good	9.986 \| good	1.875 \| good	4.296 \| good	0.18 \| good
2026-01-24T21:00:00.000Z	44 \| good	8.073 \| good	35.478 \| good	8.158 \| good	1.876 \| good	4.309 \| good	0.18 \| good
2026-01-24T22:00:00.000Z	56 \| moderate	11.899 \| good	53.086 \| good	9.649 \| good	1.851 \| good	4.814 \| good	0.184 \| good
2026-01-24T23:00:00.000Z	52 \| moderate	10.293 \| good	45.847 \| good	8.309 \| good	1.826 \| good	5.319 \| good	0.188 \| good
2026-01-25T00:00:00.000Z	58 \| moderate	12.732 \| fine	12.945 \| good	26.035 \| good	1.792 \| good	5.804 \| good	0.192 \| good

Chattanooga, Tennessee live air quality index now

Major air pollutants in Chattanooga, Tennessee

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Chattanooga, Tennessee air quality map: Track AQI near you

Air quality in nearby cities

Red Bank, Tennessee

East Ridge, Tennessee

Fort Oglethorpe, Georgia

Middle Valley, Tennessee

Collegedale, Tennessee

SoddyDaisy, Tennessee

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Air quality levels in US

Frequently asked questions

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What is the current concentration of PM2.5 in Chattanooga, Tennessee?

What is the current concentration of PM10 in Chattanooga, Tennessee?

What is the current concentration of carbon monoxide (CO) in Chattanooga, Tennessee?

What is the current concentration of sulfur dioxide (SO2) in Chattanooga, Tennessee?

What is the current concentration of ozone (O3) in Chattanooga, Tennessee?

What is the current concentration of nitrogen dioxide (NO2) in Chattanooga, Tennessee?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the current concentration of PM_2.5 in Chattanooga, Tennessee?

What is the current concentration of PM₁₀ in Chattanooga, Tennessee?

What is the current concentration of sulfur dioxide (SO₂) in Chattanooga, Tennessee?

What is the current concentration of ozone (O₃) in Chattanooga, Tennessee?

What is the current concentration of nitrogen dioxide (NO₂) in Chattanooga, Tennessee?