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

The current PM10 concentration at Chattanooga, Tennessee is 25.098 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Chattanooga, Tennessee is 0.175 ppb.

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

The current ozone (O3) concentration at Chattanooga, Tennessee is 29.561 ppm.

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

The current nitrogen dioxide (NO2) concentration at Chattanooga, Tennessee is 5.767 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 5.823 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)

Good

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)

5.82 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

25.10 μg/m³

155

255

425

605+

Ozone (O₃)

29.56 ppb

201

201+

Sulfur Dioxide (SO₂)

0.17 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

5.77 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.23 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
2026-07-21T23:00:00.000Z	38 \| good	7.392 \| good	32.983 \| good	35.203 \| good	0.38 \| good	6.238 \| good	0.286 \| good
2026-07-22T00:00:00.000Z	38 \| good	7.198 \| good	31.934 \| good	34.269 \| good	0.381 \| good	6.559 \| good	0.302 \| good
2026-07-22T01:00:00.000Z	38 \| good	7.189 \| good	31.926 \| good	31.439 \| good	0.236 \| good	7.231 \| good	0.382 \| good
2026-07-22T02:00:00.000Z	38 \| good	6.992 \| good	30.948 \| good	32.822 \| good	0.247 \| good	8.843 \| good	0.943 \| good
2026-07-22T03:00:00.000Z	38 \| good	6.701 \| good	30.023 \| good	29.324 \| good	0.348 \| good	8.361 \| good	0.403 \| good
2026-07-22T04:00:00.000Z	33 \| good	6.41 \| good	28.946 \| good	27.778 \| good	0.3 \| good	8.045 \| good	0.395 \| good
2026-07-22T05:00:00.000Z	33 \| good	6.415 \| good	28.963 \| good	26.52 \| good	0.316 \| good	6.884 \| good	0.333 \| good
2026-07-22T06:00:00.000Z	38 \| good	6.601 \| good	29.99 \| good	27.698 \| good	0.297 \| good	4.159 \| good	0.257 \| good
2026-07-22T07:00:00.000Z	38 \| good	6.694 \| good	29.898 \| good	16.62 \| good	0.297 \| good	4.1 \| good	0.296 \| good
2026-07-22T08:00:00.000Z	38 \| good	6.809 \| good	29.975 \| good	18.027 \| good	0.282 \| good	3.826 \| good	0.244 \| good
2026-07-22T09:00:00.000Z	38 \| good	7.084 \| good	31.887 \| good	20.577 \| good	0.299 \| good	3.31 \| good	0.197 \| good
2026-07-22T10:00:00.000Z	38 \| good	7.413 \| good	33.022 \| good	18.755 \| good	0.281 \| good	7.04 \| good	0.259 \| good
2026-07-22T11:00:00.000Z	44 \| good	7.795 \| good	33.932 \| good	19.791 \| good	0.249 \| good	5.264 \| good	0.275 \| good
2026-07-22T12:00:00.000Z	44 \| good	8.398 \| good	36.981 \| good	15.44 \| good	0.218 \| good	5.667 \| good	0.306 \| good
2026-07-22T13:00:00.000Z	49 \| good	8.882 \| good	38.842 \| good	18.177 \| good	0.27 \| good	6.599 \| good	0.32 \| good
2026-07-22T14:00:00.000Z	52 \| moderate	9.685 \| good	42.971 \| good	22.752 \| good	0.249 \| good	5.656 \| good	0.244 \| good
2026-07-22T15:00:00.000Z	52 \| moderate	10.404 \| good	45.929 \| good	22.283 \| good	0.345 \| good	4.96 \| good	0.244 \| good
2026-07-22T16:00:00.000Z	54 \| moderate	10.877 \| good	47.81 \| good	22.618 \| good	0.364 \| good	4.611 \| good	0.275 \| good
2026-07-22T17:00:00.000Z	54 \| moderate	10.712 \| good	48.019 \| good	25.599 \| good	0.457 \| good	3.609 \| good	0.213 \| good
2026-07-22T18:00:00.000Z	52 \| moderate	10.106 \| good	44.972 \| good	27.24 \| good	0.329 \| good	4.375 \| good	0.244 \| good
2026-07-22T19:00:00.000Z	52 \| moderate	9.819 \| good	44.013 \| good	27.302 \| good	0.297 \| good	2.901 \| good	0.213 \| good
2026-07-22T20:00:00.000Z	52 \| moderate	9.503 \| good	42.999 \| good	30.257 \| good	0.297 \| good	3.751 \| good	0.25 \| good
2026-07-22T21:00:00.000Z	49 \| good	8.989 \| good	40.976 \| good	32.472 \| good	0.281 \| good	4.681 \| good	0.282 \| good
2026-07-22T22:00:00.000Z	49 \| good	9.001 \| good	40.964 \| good	29.951 \| good	0.331 \| good	3.868 \| good	0.244 \| good
2026-07-22T23:00:00.000Z	49 \| good	8.584 \| good	37.976 \| good	31.615 \| good	0.331 \| good	3.589 \| good	0.288 \| good
2026-07-23T00:00:00.000Z	44 \| good	8.459 \| good	36.83 \| good	29.514 \| good	0.331 \| good	4.694 \| good	0.414 \| good
2026-07-23T01:00:00.000Z	49 \| good	8.59 \| good	37.911 \| good	28.949 \| good	0.205 \| good	6.937 \| good	0.396 \| good
2026-07-23T02:00:00.000Z	49 \| good	8.769 \| good	38.917 \| good	27.479 \| good	0.191 \| good	7.979 \| good	0.396 \| good
2026-07-23T03:00:00.000Z	33 \| good	6.218 \| good	27.991 \| good	21.297 \| good	0.119 \| good	5.743 \| good	0.201 \| good
2026-07-23T04:00:00.000Z	49 \| good	8.981 \| good	40.806 \| good	21.911 \| good	0.283 \| good	7.05 \| good	0.292 \| good
2026-07-23T05:00:00.000Z	49 \| good	8.682 \| good	37.786 \| good	22.118 \| good	0.202 \| good	6.14 \| good	0.292 \| good
2026-07-23T06:00:00.000Z	44 \| good	8.18 \| good	35.904 \| good	21.78 \| good	0.251 \| good	6.883 \| good	0.35 \| good
2026-07-23T07:00:00.000Z	44 \| good	8.088 \| good	35.925 \| good	20.525 \| good	0.251 \| good	5.604 \| good	0.263 \| good
2026-07-23T08:00:00.000Z	44 \| good	8.097 \| good	36.007 \| good	19.737 \| good	0.266 \| good	5.311 \| good	0.245 \| good
2026-07-23T09:00:00.000Z	49 \| good	8.68 \| good	37.868 \| good	17.709 \| good	0.329 \| good	3.863 \| good	0.187 \| good
2026-07-23T10:00:00.000Z	49 \| good	9.277 \| good	41.781 \| good	15.76 \| good	0.315 \| good	3.747 \| good	0.187 \| good
2026-07-23T11:00:00.000Z	52 \| moderate	9.681 \| good	42.796 \| good	17.178 \| good	0.299 \| good	4.572 \| good	0.277 \| good
2026-07-23T12:00:00.000Z	52 \| moderate	10.483 \| good	46.794 \| good	14.767 \| good	0.265 \| good	7.652 \| good	0.379 \| good
2026-07-23T13:00:00.000Z	52 \| moderate	10.171 \| good	44.857 \| good	20.725 \| good	0.41 \| good	6.421 \| good	0.325 \| good
2026-07-23T14:00:00.000Z	49 \| good	8.69 \| good	37.803 \| good	17.059 \| good	0.379 \| good	7.843 \| good	0.348 \| good
2026-07-23T15:00:00.000Z	49 \| good	8.68 \| good	37.83 \| good	18.281 \| good	0.206 \| good	7.253 \| good	0.288 \| good
2026-07-23T16:00:00.000Z	49 \| good	9.487 \| good	42.685 \| good	20.775 \| good	0.258 \| good	5.745 \| good	0.187 \| good
2026-07-23T17:00:00.000Z	52 \| moderate	9.772 \| good	43.825 \| good	20.973 \| good	0.191 \| good	5.594 \| good	0.201 \| good
2026-07-23T18:00:00.000Z	38 \| good	7.002 \| good	31.024 \| good	21.744 \| good	0.206 \| good	5.247 \| good	0.187 \| good
2026-07-23T19:00:00.000Z	33 \| good	5.809 \| good	25.056 \| good	29.755 \| good	0.161 \| good	4.679 \| good	0.187 \| good
2026-07-23T20:00:00.000Z	33 \| good	5.528 \| good	24.115 \| good	23.262 \| good	0.189 \| good	5.433 \| good	0.187 \| good
2026-07-23T21:00:00.000Z	33 \| good	5.823 \| good	25.098 \| good	29.561 \| good	0.175 \| good	5.767 \| good	0.232 \| good
2026-07-23T22:00:00.000Z	33 \| good	5.823 \| good	25.098 \| good	29.561 \| good	0.175 \| good	5.767 \| good	0.232 \| good
2026-07-23T23:00:00.000Z	44 \| good	7.812 \| good	34.236 \| good	30.009 \| good	0.208 \| good	1.266 \| good	0.19 \| good
2026-07-24T00:00:00.000Z	38 \| good	6.986 \| good	31.009 \| good	27.272 \| good	0.184 \| good	2.183 \| good	0.2 \| good
2026-07-24T01:00:00.000Z	44 \| good	8.261 \| good	36.277 \| good	23.949 \| good	0.161 \| good	3.935 \| good	0.217 \| good
2026-07-24T02:00:00.000Z	44 \| good	7.653 \| good	33.76 \| good	19.91 \| good	0.16 \| good	5.027 \| good	0.228 \| good
2026-07-24T03:00:00.000Z	44 \| good	8.124 \| good	35.767 \| good	14.198 \| good	0.166 \| good	6.059 \| good	0.238 \| good
2026-07-24T04:00:00.000Z	49 \| good	8.899 \| good	39.189 \| good	14.718 \| good	0.173 \| good	7.259 \| good	0.25 \| good
2026-07-24T05:00:00.000Z	52 \| moderate	9.951 \| good	44.121 \| good	14.816 \| good	0.179 \| good	8.713 \| good	0.264 \| good
2026-07-24T06:00:00.000Z	54 \| moderate	10.652 \| good	47.265 \| good	15.158 \| good	0.189 \| good	9.634 \| good	0.272 \| good
2026-07-24T07:00:00.000Z	54 \| moderate	11.151 \| good	49.328 \| good	14.597 \| good	0.194 \| good	9.281 \| good	0.269 \| good
2026-07-24T08:00:00.000Z	54 \| moderate	10.658 \| good	47.328 \| good	8.957 \| good	0.183 \| good	9.002 \| good	0.267 \| good
2026-07-24T09:00:00.000Z	52 \| moderate	9.727 \| good	43.04 \| good	8.976 \| good	0.181 \| good	7.695 \| good	0.257 \| good
2026-07-24T10:00:00.000Z	52 \| moderate	9.721 \| good	43.041 \| good	9.336 \| good	0.197 \| good	5.392 \| good	0.234 \| good
2026-07-24T11:00:00.000Z	44 \| good	8.243 \| good	36.223 \| good	13.086 \| good	0.213 \| good	4.254 \| good	0.221 \| good
2026-07-24T12:00:00.000Z	49 \| good	8.864 \| good	39.257 \| good	10.093 \| good	0.227 \| good	3.405 \| good	0.212 \| good
2026-07-24T13:00:00.000Z	49 \| good	8.905 \| good	39.422 \| good	10.361 \| good	0.245 \| good	2.752 \| good	0.203 \| good
2026-07-24T14:00:00.000Z	49 \| good	8.845 \| good	38.993 \| good	14.132 \| good	0.26 \| good	2.115 \| good	0.192 \| good
2026-07-24T15:00:00.000Z	49 \| good	9.243 \| good	41.112 \| good	18.562 \| good	0.251 \| good	1.337 \| good	0.18 \| good
2026-07-24T16:00:00.000Z	54 \| moderate	10.632 \| good	46.937 \| good	27.041 \| good	0.231 \| good	0.762 \| good	0.172 \| good
2026-07-24T17:00:00.000Z	52 \| moderate	9.816 \| good	43.669 \| good	31.245 \| good	0.214 \| good	0.522 \| good	0.17 \| good
2026-07-24T18:00:00.000Z	52 \| moderate	9.561 \| good	42.608 \| good	33.09 \| good	0.2 \| good	0.453 \| good	0.172 \| good
2026-07-24T19:00:00.000Z	49 \| good	9.374 \| good	41.907 \| good	35.484 \| good	0.197 \| good	0.45 \| good	0.176 \| good
2026-07-24T20:00:00.000Z	52 \| moderate	9.957 \| good	44.316 \| good	35.376 \| good	0.199 \| good	0.437 \| good	0.179 \| good
2026-07-24T21:00:00.000Z	49 \| good	9.449 \| good	42.045 \| good	34.739 \| good	0.2 \| good	0.492 \| good	0.183 \| good
2026-07-24T22:00:00.000Z	52 \| moderate	10.183 \| good	45.04 \| good	33.726 \| good	0.195 \| good	0.694 \| good	0.185 \| good
2026-07-24T23:00:00.000Z	52 \| moderate	9.58 \| good	42.619 \| good	31.015 \| good	0.172 \| good	1.269 \| good	0.191 \| good
2026-07-25T00:00:00.000Z	49 \| good	8.551 \| good	37.643 \| good	26.739 \| good	0.154 \| good	2.479 \| good	0.206 \| good
2026-07-25T01:00:00.000Z	49 \| good	9.149 \| good	40.5 \| good	25.95 \| good	0.151 \| good	3.745 \| good	0.216 \| good
2026-07-25T02:00:00.000Z	38 \| good	7.415 \| good	32.793 \| good	24.328 \| good	0.15 \| good	4.29 \| good	0.214 \| good
2026-07-25T03:00:00.000Z	38 \| good	7.034 \| good	31.173 \| good	18.92 \| good	0.148 \| good	4.533 \| good	0.21 \| good
2026-07-25T04:00:00.000Z	38 \| good	6.799 \| good	30.093 \| good	19.876 \| good	0.145 \| good	5.083 \| good	0.211 \| good
2026-07-25T05:00:00.000Z	38 \| good	7.141 \| good	31.537 \| good	14.368 \| good	0.143 \| good	5.418 \| good	0.211 \| good
2026-07-25T06:00:00.000Z	44 \| good	7.675 \| good	33.753 \| good	16.265 \| good	0.136 \| good	5.466 \| good	0.209 \| good
2026-07-25T07:00:00.000Z	44 \| good	8.452 \| good	37.333 \| good	16.226 \| good	0.126 \| good	5.376 \| good	0.205 \| good
2026-07-25T08:00:00.000Z	44 \| good	8.435 \| good	37.233 \| good	14.71 \| good	0.118 \| good	5.025 \| good	0.2 \| good
2026-07-25T09:00:00.000Z	44 \| good	7.998 \| good	35.187 \| good	15.39 \| good	0.119 \| good	4.196 \| good	0.191 \| good
2026-07-25T10:00:00.000Z	49 \| good	8.598 \| good	37.807 \| good	12.258 \| good	0.116 \| good	3.876 \| good	0.187 \| good
2026-07-25T11:00:00.000Z	44 \| good	8.493 \| good	37.456 \| good	13.451 \| good	0.118 \| good	3.682 \| good	0.187 \| good
2026-07-25T12:00:00.000Z	54 \| moderate	10.967 \| good	48.576 \| good	15.125 \| good	0.135 \| good	2.951 \| good	0.184 \| good
2026-07-25T13:00:00.000Z	54 \| moderate	10.812 \| good	47.897 \| good	21.764 \| good	0.163 \| good	2.642 \| good	0.185 \| good
2026-07-25T14:00:00.000Z	52 \| moderate	10.27 \| good	45.552 \| good	29.452 \| good	0.191 \| good	2.07 \| good	0.183 \| good
2026-07-25T15:00:00.000Z	52 \| moderate	10.478 \| good	46.225 \| good	38.431 \| good	0.208 \| good	1.534 \| good	0.184 \| good
2026-07-25T16:00:00.000Z	54 \| moderate	10.684 \| good	47.265 \| good	42.889 \| good	0.197 \| good	1.224 \| good	0.186 \| good
2026-07-25T17:00:00.000Z	52 \| moderate	10.28 \| good	45.712 \| good	44.604 \| good	0.194 \| good	0.893 \| good	0.184 \| good
2026-07-25T18:00:00.000Z	52 \| moderate	10.308 \| good	45.898 \| good	42.699 \| good	0.163 \| good	0.874 \| good	0.181 \| good
2026-07-25T19:00:00.000Z	52 \| moderate	10.408 \| good	46.059 \| good	39.812 \| good	0.133 \| good	0.924 \| good	0.179 \| good
2026-07-25T20:00:00.000Z	54 \| moderate	10.514 \| good	46.579 \| good	38.658 \| good	0.115 \| good	1.003 \| good	0.174 \| good
2026-07-25T21:00:00.000Z	52 \| moderate	9.915 \| good	43.853 \| good	34.835 \| good	0.115 \| good	1.103 \| good	0.174 \| good
2026-07-25T22:00:00.000Z	52 \| moderate	10.242 \| good	45.575 \| good	30.785 \| good	0.124 \| good	1.067 \| good	0.175 \| good

Chattanooga

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Chattanooga, Tennessee air quality map: Track AQI near you

0.23ppm

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 2026-07-23.

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 09:00:00 on 2026-07-23.

What is the current air quality in Chattanooga, Tennessee?

The current air quality in Chattanooga, Tennessee is 33, categorized as Good 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 5.823 μg/m³.

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

The current PM₁₀ concentration at Chattanooga, Tennessee is 25.098 μg/m³.

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

The current carbon monoxide (CO) concentration at Chattanooga, Tennessee is 0.232 ppm.

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

The current sulfur dioxide (SO₂) concentration at Chattanooga, Tennessee is 0.175 ppb.

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

The current ozone (O₃) concentration at Chattanooga, Tennessee is 29.561 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Chattanooga, Tennessee is 5.767 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-07-21T23:00:00.000Z	38 \| good	7.392 \| good	32.983 \| good	35.203 \| good	0.38 \| good	6.238 \| good	0.286 \| good
2026-07-22T00:00:00.000Z	38 \| good	7.198 \| good	31.934 \| good	34.269 \| good	0.381 \| good	6.559 \| good	0.302 \| good
2026-07-22T01:00:00.000Z	38 \| good	7.189 \| good	31.926 \| good	31.439 \| good	0.236 \| good	7.231 \| good	0.382 \| good
2026-07-22T02:00:00.000Z	38 \| good	6.992 \| good	30.948 \| good	32.822 \| good	0.247 \| good	8.843 \| good	0.943 \| good
2026-07-22T03:00:00.000Z	38 \| good	6.701 \| good	30.023 \| good	29.324 \| good	0.348 \| good	8.361 \| good	0.403 \| good
2026-07-22T04:00:00.000Z	33 \| good	6.41 \| good	28.946 \| good	27.778 \| good	0.3 \| good	8.045 \| good	0.395 \| good
2026-07-22T05:00:00.000Z	33 \| good	6.415 \| good	28.963 \| good	26.52 \| good	0.316 \| good	6.884 \| good	0.333 \| good
2026-07-22T06:00:00.000Z	38 \| good	6.601 \| good	29.99 \| good	27.698 \| good	0.297 \| good	4.159 \| good	0.257 \| good
2026-07-22T07:00:00.000Z	38 \| good	6.694 \| good	29.898 \| good	16.62 \| good	0.297 \| good	4.1 \| good	0.296 \| good
2026-07-22T08:00:00.000Z	38 \| good	6.809 \| good	29.975 \| good	18.027 \| good	0.282 \| good	3.826 \| good	0.244 \| good
2026-07-22T09:00:00.000Z	38 \| good	7.084 \| good	31.887 \| good	20.577 \| good	0.299 \| good	3.31 \| good	0.197 \| good
2026-07-22T10:00:00.000Z	38 \| good	7.413 \| good	33.022 \| good	18.755 \| good	0.281 \| good	7.04 \| good	0.259 \| good
2026-07-22T11:00:00.000Z	44 \| good	7.795 \| good	33.932 \| good	19.791 \| good	0.249 \| good	5.264 \| good	0.275 \| good
2026-07-22T12:00:00.000Z	44 \| good	8.398 \| good	36.981 \| good	15.44 \| good	0.218 \| good	5.667 \| good	0.306 \| good
2026-07-22T13:00:00.000Z	49 \| good	8.882 \| good	38.842 \| good	18.177 \| good	0.27 \| good	6.599 \| good	0.32 \| good
2026-07-22T14:00:00.000Z	52 \| moderate	9.685 \| good	42.971 \| good	22.752 \| good	0.249 \| good	5.656 \| good	0.244 \| good
2026-07-22T15:00:00.000Z	52 \| moderate	10.404 \| good	45.929 \| good	22.283 \| good	0.345 \| good	4.96 \| good	0.244 \| good
2026-07-22T16:00:00.000Z	54 \| moderate	10.877 \| good	47.81 \| good	22.618 \| good	0.364 \| good	4.611 \| good	0.275 \| good
2026-07-22T17:00:00.000Z	54 \| moderate	10.712 \| good	48.019 \| good	25.599 \| good	0.457 \| good	3.609 \| good	0.213 \| good
2026-07-22T18:00:00.000Z	52 \| moderate	10.106 \| good	44.972 \| good	27.24 \| good	0.329 \| good	4.375 \| good	0.244 \| good
2026-07-22T19:00:00.000Z	52 \| moderate	9.819 \| good	44.013 \| good	27.302 \| good	0.297 \| good	2.901 \| good	0.213 \| good
2026-07-22T20:00:00.000Z	52 \| moderate	9.503 \| good	42.999 \| good	30.257 \| good	0.297 \| good	3.751 \| good	0.25 \| good
2026-07-22T21:00:00.000Z	49 \| good	8.989 \| good	40.976 \| good	32.472 \| good	0.281 \| good	4.681 \| good	0.282 \| good
2026-07-22T22:00:00.000Z	49 \| good	9.001 \| good	40.964 \| good	29.951 \| good	0.331 \| good	3.868 \| good	0.244 \| good
2026-07-22T23:00:00.000Z	49 \| good	8.584 \| good	37.976 \| good	31.615 \| good	0.331 \| good	3.589 \| good	0.288 \| good
2026-07-23T00:00:00.000Z	44 \| good	8.459 \| good	36.83 \| good	29.514 \| good	0.331 \| good	4.694 \| good	0.414 \| good
2026-07-23T01:00:00.000Z	49 \| good	8.59 \| good	37.911 \| good	28.949 \| good	0.205 \| good	6.937 \| good	0.396 \| good
2026-07-23T02:00:00.000Z	49 \| good	8.769 \| good	38.917 \| good	27.479 \| good	0.191 \| good	7.979 \| good	0.396 \| good
2026-07-23T03:00:00.000Z	33 \| good	6.218 \| good	27.991 \| good	21.297 \| good	0.119 \| good	5.743 \| good	0.201 \| good
2026-07-23T04:00:00.000Z	49 \| good	8.981 \| good	40.806 \| good	21.911 \| good	0.283 \| good	7.05 \| good	0.292 \| good
2026-07-23T05:00:00.000Z	49 \| good	8.682 \| good	37.786 \| good	22.118 \| good	0.202 \| good	6.14 \| good	0.292 \| good
2026-07-23T06:00:00.000Z	44 \| good	8.18 \| good	35.904 \| good	21.78 \| good	0.251 \| good	6.883 \| good	0.35 \| good
2026-07-23T07:00:00.000Z	44 \| good	8.088 \| good	35.925 \| good	20.525 \| good	0.251 \| good	5.604 \| good	0.263 \| good
2026-07-23T08:00:00.000Z	44 \| good	8.097 \| good	36.007 \| good	19.737 \| good	0.266 \| good	5.311 \| good	0.245 \| good
2026-07-23T09:00:00.000Z	49 \| good	8.68 \| good	37.868 \| good	17.709 \| good	0.329 \| good	3.863 \| good	0.187 \| good
2026-07-23T10:00:00.000Z	49 \| good	9.277 \| good	41.781 \| good	15.76 \| good	0.315 \| good	3.747 \| good	0.187 \| good
2026-07-23T11:00:00.000Z	52 \| moderate	9.681 \| good	42.796 \| good	17.178 \| good	0.299 \| good	4.572 \| good	0.277 \| good
2026-07-23T12:00:00.000Z	52 \| moderate	10.483 \| good	46.794 \| good	14.767 \| good	0.265 \| good	7.652 \| good	0.379 \| good
2026-07-23T13:00:00.000Z	52 \| moderate	10.171 \| good	44.857 \| good	20.725 \| good	0.41 \| good	6.421 \| good	0.325 \| good
2026-07-23T14:00:00.000Z	49 \| good	8.69 \| good	37.803 \| good	17.059 \| good	0.379 \| good	7.843 \| good	0.348 \| good
2026-07-23T15:00:00.000Z	49 \| good	8.68 \| good	37.83 \| good	18.281 \| good	0.206 \| good	7.253 \| good	0.288 \| good
2026-07-23T16:00:00.000Z	49 \| good	9.487 \| good	42.685 \| good	20.775 \| good	0.258 \| good	5.745 \| good	0.187 \| good
2026-07-23T17:00:00.000Z	52 \| moderate	9.772 \| good	43.825 \| good	20.973 \| good	0.191 \| good	5.594 \| good	0.201 \| good
2026-07-23T18:00:00.000Z	38 \| good	7.002 \| good	31.024 \| good	21.744 \| good	0.206 \| good	5.247 \| good	0.187 \| good
2026-07-23T19:00:00.000Z	33 \| good	5.809 \| good	25.056 \| good	29.755 \| good	0.161 \| good	4.679 \| good	0.187 \| good
2026-07-23T20:00:00.000Z	33 \| good	5.528 \| good	24.115 \| good	23.262 \| good	0.189 \| good	5.433 \| good	0.187 \| good
2026-07-23T21:00:00.000Z	33 \| good	5.823 \| good	25.098 \| good	29.561 \| good	0.175 \| good	5.767 \| good	0.232 \| good
2026-07-23T22:00:00.000Z	33 \| good	5.823 \| good	25.098 \| good	29.561 \| good	0.175 \| good	5.767 \| good	0.232 \| good
2026-07-23T23:00:00.000Z	44 \| good	7.812 \| good	34.236 \| good	30.009 \| good	0.208 \| good	1.266 \| good	0.19 \| good
2026-07-24T00:00:00.000Z	38 \| good	6.986 \| good	31.009 \| good	27.272 \| good	0.184 \| good	2.183 \| good	0.2 \| good
2026-07-24T01:00:00.000Z	44 \| good	8.261 \| good	36.277 \| good	23.949 \| good	0.161 \| good	3.935 \| good	0.217 \| good
2026-07-24T02:00:00.000Z	44 \| good	7.653 \| good	33.76 \| good	19.91 \| good	0.16 \| good	5.027 \| good	0.228 \| good
2026-07-24T03:00:00.000Z	44 \| good	8.124 \| good	35.767 \| good	14.198 \| good	0.166 \| good	6.059 \| good	0.238 \| good
2026-07-24T04:00:00.000Z	49 \| good	8.899 \| good	39.189 \| good	14.718 \| good	0.173 \| good	7.259 \| good	0.25 \| good
2026-07-24T05:00:00.000Z	52 \| moderate	9.951 \| good	44.121 \| good	14.816 \| good	0.179 \| good	8.713 \| good	0.264 \| good
2026-07-24T06:00:00.000Z	54 \| moderate	10.652 \| good	47.265 \| good	15.158 \| good	0.189 \| good	9.634 \| good	0.272 \| good
2026-07-24T07:00:00.000Z	54 \| moderate	11.151 \| good	49.328 \| good	14.597 \| good	0.194 \| good	9.281 \| good	0.269 \| good
2026-07-24T08:00:00.000Z	54 \| moderate	10.658 \| good	47.328 \| good	8.957 \| good	0.183 \| good	9.002 \| good	0.267 \| good
2026-07-24T09:00:00.000Z	52 \| moderate	9.727 \| good	43.04 \| good	8.976 \| good	0.181 \| good	7.695 \| good	0.257 \| good
2026-07-24T10:00:00.000Z	52 \| moderate	9.721 \| good	43.041 \| good	9.336 \| good	0.197 \| good	5.392 \| good	0.234 \| good
2026-07-24T11:00:00.000Z	44 \| good	8.243 \| good	36.223 \| good	13.086 \| good	0.213 \| good	4.254 \| good	0.221 \| good
2026-07-24T12:00:00.000Z	49 \| good	8.864 \| good	39.257 \| good	10.093 \| good	0.227 \| good	3.405 \| good	0.212 \| good
2026-07-24T13:00:00.000Z	49 \| good	8.905 \| good	39.422 \| good	10.361 \| good	0.245 \| good	2.752 \| good	0.203 \| good
2026-07-24T14:00:00.000Z	49 \| good	8.845 \| good	38.993 \| good	14.132 \| good	0.26 \| good	2.115 \| good	0.192 \| good
2026-07-24T15:00:00.000Z	49 \| good	9.243 \| good	41.112 \| good	18.562 \| good	0.251 \| good	1.337 \| good	0.18 \| good
2026-07-24T16:00:00.000Z	54 \| moderate	10.632 \| good	46.937 \| good	27.041 \| good	0.231 \| good	0.762 \| good	0.172 \| good
2026-07-24T17:00:00.000Z	52 \| moderate	9.816 \| good	43.669 \| good	31.245 \| good	0.214 \| good	0.522 \| good	0.17 \| good
2026-07-24T18:00:00.000Z	52 \| moderate	9.561 \| good	42.608 \| good	33.09 \| good	0.2 \| good	0.453 \| good	0.172 \| good
2026-07-24T19:00:00.000Z	49 \| good	9.374 \| good	41.907 \| good	35.484 \| good	0.197 \| good	0.45 \| good	0.176 \| good
2026-07-24T20:00:00.000Z	52 \| moderate	9.957 \| good	44.316 \| good	35.376 \| good	0.199 \| good	0.437 \| good	0.179 \| good
2026-07-24T21:00:00.000Z	49 \| good	9.449 \| good	42.045 \| good	34.739 \| good	0.2 \| good	0.492 \| good	0.183 \| good
2026-07-24T22:00:00.000Z	52 \| moderate	10.183 \| good	45.04 \| good	33.726 \| good	0.195 \| good	0.694 \| good	0.185 \| good
2026-07-24T23:00:00.000Z	52 \| moderate	9.58 \| good	42.619 \| good	31.015 \| good	0.172 \| good	1.269 \| good	0.191 \| good
2026-07-25T00:00:00.000Z	49 \| good	8.551 \| good	37.643 \| good	26.739 \| good	0.154 \| good	2.479 \| good	0.206 \| good
2026-07-25T01:00:00.000Z	49 \| good	9.149 \| good	40.5 \| good	25.95 \| good	0.151 \| good	3.745 \| good	0.216 \| good
2026-07-25T02:00:00.000Z	38 \| good	7.415 \| good	32.793 \| good	24.328 \| good	0.15 \| good	4.29 \| good	0.214 \| good
2026-07-25T03:00:00.000Z	38 \| good	7.034 \| good	31.173 \| good	18.92 \| good	0.148 \| good	4.533 \| good	0.21 \| good
2026-07-25T04:00:00.000Z	38 \| good	6.799 \| good	30.093 \| good	19.876 \| good	0.145 \| good	5.083 \| good	0.211 \| good
2026-07-25T05:00:00.000Z	38 \| good	7.141 \| good	31.537 \| good	14.368 \| good	0.143 \| good	5.418 \| good	0.211 \| good
2026-07-25T06:00:00.000Z	44 \| good	7.675 \| good	33.753 \| good	16.265 \| good	0.136 \| good	5.466 \| good	0.209 \| good
2026-07-25T07:00:00.000Z	44 \| good	8.452 \| good	37.333 \| good	16.226 \| good	0.126 \| good	5.376 \| good	0.205 \| good
2026-07-25T08:00:00.000Z	44 \| good	8.435 \| good	37.233 \| good	14.71 \| good	0.118 \| good	5.025 \| good	0.2 \| good
2026-07-25T09:00:00.000Z	44 \| good	7.998 \| good	35.187 \| good	15.39 \| good	0.119 \| good	4.196 \| good	0.191 \| good
2026-07-25T10:00:00.000Z	49 \| good	8.598 \| good	37.807 \| good	12.258 \| good	0.116 \| good	3.876 \| good	0.187 \| good
2026-07-25T11:00:00.000Z	44 \| good	8.493 \| good	37.456 \| good	13.451 \| good	0.118 \| good	3.682 \| good	0.187 \| good
2026-07-25T12:00:00.000Z	54 \| moderate	10.967 \| good	48.576 \| good	15.125 \| good	0.135 \| good	2.951 \| good	0.184 \| good
2026-07-25T13:00:00.000Z	54 \| moderate	10.812 \| good	47.897 \| good	21.764 \| good	0.163 \| good	2.642 \| good	0.185 \| good
2026-07-25T14:00:00.000Z	52 \| moderate	10.27 \| good	45.552 \| good	29.452 \| good	0.191 \| good	2.07 \| good	0.183 \| good
2026-07-25T15:00:00.000Z	52 \| moderate	10.478 \| good	46.225 \| good	38.431 \| good	0.208 \| good	1.534 \| good	0.184 \| good
2026-07-25T16:00:00.000Z	54 \| moderate	10.684 \| good	47.265 \| good	42.889 \| good	0.197 \| good	1.224 \| good	0.186 \| good
2026-07-25T17:00:00.000Z	52 \| moderate	10.28 \| good	45.712 \| good	44.604 \| good	0.194 \| good	0.893 \| good	0.184 \| good
2026-07-25T18:00:00.000Z	52 \| moderate	10.308 \| good	45.898 \| good	42.699 \| good	0.163 \| good	0.874 \| good	0.181 \| good
2026-07-25T19:00:00.000Z	52 \| moderate	10.408 \| good	46.059 \| good	39.812 \| good	0.133 \| good	0.924 \| good	0.179 \| good
2026-07-25T20:00:00.000Z	54 \| moderate	10.514 \| good	46.579 \| good	38.658 \| good	0.115 \| good	1.003 \| good	0.174 \| good
2026-07-25T21:00:00.000Z	52 \| moderate	9.915 \| good	43.853 \| good	34.835 \| good	0.115 \| good	1.103 \| good	0.174 \| good
2026-07-25T22:00:00.000Z	52 \| moderate	10.242 \| good	45.575 \| good	30.785 \| good	0.124 \| good	1.067 \| good	0.175 \| 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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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?