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

The current PM10 concentration at Chattanooga, Tennessee is 102.548 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Chattanooga, Tennessee is 0.512 ppb.

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

The current ozone (O3) concentration at Chattanooga, Tennessee is 50.363 ppm.

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

The current nitrogen dioxide (NO2) concentration at Chattanooga, Tennessee is 8.275 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 24.44 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)

24.44 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

102.55 μg/m³

155

255

425

605+

Ozone (O₃)

50.36 ppb

201

201+

Sulfur Dioxide (SO₂)

0.51 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

8.28 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.38 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

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
2026-04-22T04:00:00.000Z	52 \| moderate	9.933 \| good	43.277 \| good	46.907 \| good	0.596 \| good	22.032 \| good	0.385 \| good
2026-04-22T05:00:00.000Z	58 \| moderate	12.913 \| fine	58.167 \| fine	45.853 \| good	0.536 \| good	31.574 \| good	0.444 \| good
2026-04-22T06:00:00.000Z	58 \| moderate	12.924 \| fine	58.276 \| fine	43.587 \| good	0.56 \| good	30.184 \| good	0.317 \| good
2026-04-22T07:00:00.000Z	62 \| moderate	15.31 \| fine	68.004 \| fine	43.966 \| good	0.783 \| good	28.337 \| good	0.334 \| good
2026-04-22T08:00:00.000Z	58 \| moderate	13.226 \| fine	58.658 \| fine	40.866 \| good	1.041 \| good	26.396 \| good	0.303 \| good
2026-04-22T09:00:00.000Z	58 \| moderate	12.984 \| fine	56.924 \| fine	35.206 \| good	0.733 \| good	23.669 \| good	0.286 \| good
2026-04-22T10:00:00.000Z	56 \| moderate	12.212 \| fine	54.416 \| good	33.195 \| good	0.755 \| good	21.928 \| good	0.286 \| good
2026-04-22T11:00:00.000Z	56 \| moderate	11.689 \| good	50.541 \| good	29.13 \| good	0.656 \| good	23.926 \| good	0.41 \| good
2026-04-22T12:00:00.000Z	56 \| moderate	11.748 \| good	52.278 \| good	29.633 \| good	0.77 \| good	25.093 \| good	0.425 \| good
2026-04-22T13:00:00.000Z	56 \| moderate	12.131 \| fine	54.093 \| good	20.906 \| good	0.811 \| good	22.625 \| good	0.53 \| good
2026-04-22T14:00:00.000Z	58 \| moderate	13.03 \| fine	57.285 \| fine	25.08 \| good	0.612 \| good	17.747 \| good	0.465 \| good
2026-04-22T15:00:00.000Z	60 \| moderate	13.679 \| fine	61.273 \| fine	31.521 \| good	1.156 \| good	23.206 \| good	0.54 \| good
2026-04-22T16:00:00.000Z	60 \| moderate	13.683 \| fine	61.066 \| fine	31.584 \| good	1.191 \| good	21.331 \| good	0.509 \| good
2026-04-22T17:00:00.000Z	60 \| moderate	13.643 \| fine	60.896 \| fine	37.688 \| good	0.984 \| good	14.716 \| good	0.319 \| good
2026-04-22T18:00:00.000Z	58 \| moderate	12.956 \| fine	56.952 \| fine	45.634 \| good	1.073 \| good	7.68 \| good	0.264 \| good
2026-04-22T19:00:00.000Z	56 \| moderate	12.252 \| fine	54.582 \| good	50.434 \| good	0.604 \| good	8.451 \| good	0.247 \| good
2026-04-22T20:00:00.000Z	54 \| moderate	11.364 \| good	48.947 \| good	52.766 \| good	0.603 \| good	9.274 \| good	0.293 \| good
2026-04-22T21:00:00.000Z	61 \| moderate	10.956 \| good	47.165 \| good	57.804 \| fine	1.132 \| good	7.554 \| good	0.261 \| good
2026-04-22T22:00:00.000Z	61 \| moderate	10.558 \| good	46.175 \| good	58.392 \| fine	0.96 \| good	7.77 \| good	0.247 \| good
2026-04-22T23:00:00.000Z	64 \| moderate	10.448 \| good	45.144 \| good	59.333 \| fine	0.754 \| good	8.357 \| good	0.309 \| good
2026-04-23T00:00:00.000Z	64 \| moderate	10.256 \| good	44.241 \| good	58.507 \| fine	0.716 \| good	5.068 \| good	0.233 \| good
2026-04-23T01:00:00.000Z	61 \| moderate	10.53 \| good	46.098 \| good	58.139 \| fine	0.702 \| good	5.363 \| good	0.293 \| good
2026-04-23T02:00:00.000Z	61 \| moderate	10.437 \| good	45.657 \| good	58.219 \| fine	0.61 \| good	11.668 \| good	0.307 \| good
2026-04-23T03:00:00.000Z	54 \| moderate	10.652 \| good	46.509 \| good	54.848 \| good	0.459 \| good	30.448 \| good	0.367 \| good
2026-04-23T04:00:00.000Z	54 \| moderate	10.965 \| good	47.495 \| good	39.18 \| good	0.46 \| good	34.38 \| good	0.409 \| good
2026-04-23T05:00:00.000Z	54 \| moderate	10.98 \| good	47.197 \| good	45.106 \| good	0.429 \| good	30.966 \| good	0.437 \| good
2026-04-23T06:00:00.000Z	54 \| moderate	11.068 \| good	47.307 \| good	44.232 \| good	0.704 \| good	32.282 \| good	0.481 \| good
2026-04-23T07:00:00.000Z	56 \| moderate	11.744 \| good	49.9 \| good	34.509 \| good	0.539 \| good	29.628 \| good	0.476 \| good
2026-04-23T08:00:00.000Z	56 \| moderate	12.102 \| fine	52.621 \| good	32.709 \| good	0.744 \| good	23.91 \| good	0.433 \| good
2026-04-23T09:00:00.000Z	58 \| moderate	12.948 \| fine	56.693 \| fine	31.175 \| good	0.73 \| good	21.244 \| good	0.386 \| good
2026-04-23T10:00:00.000Z	58 \| moderate	13.146 \| fine	58.732 \| fine	25.953 \| good	0.605 \| good	22.516 \| good	0.415 \| good
2026-04-23T11:00:00.000Z	60 \| moderate	13.624 \| fine	60.378 \| fine	23.978 \| good	0.813 \| good	24.606 \| good	0.565 \| good
2026-04-23T12:00:00.000Z	60 \| moderate	13.976 \| fine	60.406 \| fine	18.329 \| good	0.606 \| good	25.696 \| good	0.623 \| good
2026-04-23T13:00:00.000Z	60 \| moderate	13.97 \| fine	60.383 \| fine	13.633 \| good	0.567 \| good	22.771 \| good	0.503 \| good
2026-04-23T14:00:00.000Z	60 \| moderate	13.979 \| fine	60.423 \| fine	17.957 \| good	0.88 \| good	22.9 \| good	0.516 \| good
2026-04-23T15:00:00.000Z	64 \| moderate	15.728 \| fine	67.958 \| fine	29.494 \| good	0.825 \| good	23.94 \| good	0.387 \| good
2026-04-23T16:00:00.000Z	66 \| moderate	16.728 \| fine	73.964 \| fine	41.061 \| good	1.152 \| good	20.998 \| good	0.379 \| good
2026-04-23T17:00:00.000Z	66 \| moderate	16.813 \| fine	73.766 \| fine	40.166 \| good	1.646 \| good	16.843 \| good	0.305 \| good
2026-04-23T18:00:00.000Z	67 \| moderate	17.639 \| fine	75.716 \| fine	48.665 \| good	1.181 \| good	10.325 \| good	0.262 \| good
2026-04-23T19:00:00.000Z	67 \| moderate	18.039 \| fine	77.38 \| fine	53.838 \| good	0.827 \| good	11.309 \| good	0.276 \| good
2026-04-23T20:00:00.000Z	67 \| moderate	18.293 \| fine	78.78 \| fine	56.207 \| fine	0.625 \| good	10.572 \| good	0.309 \| good
2026-04-23T21:00:00.000Z	71 \| moderate	19.261 \| fine	82.748 \| fine	60.724 \| fine	0.609 \| good	9.442 \| good	0.32 \| good
2026-04-23T22:00:00.000Z	73 \| moderate	20.528 \| fine	86.553 \| fine	61.461 \| fine	0.527 \| good	8.173 \| good	0.307 \| good
2026-04-23T23:00:00.000Z	73 \| moderate	21.123 \| fine	90.475 \| fine	59.065 \| fine	0.501 \| good	6.971 \| good	0.262 \| good
2026-04-24T00:00:00.000Z	73 \| moderate	21.21 \| fine	90.592 \| fine	56.041 \| fine	0.484 \| good	6.243 \| good	0.307 \| good
2026-04-24T01:00:00.000Z	75 \| moderate	21.866 \| fine	92.431 \| fine	52.82 \| good	0.462 \| good	6.751 \| good	0.291 \| good
2026-04-24T02:00:00.000Z	79 \| moderate	24.44 \| fine	102.548 \| fine	50.363 \| good	0.512 \| good	8.275 \| good	0.382 \| good
2026-04-24T03:00:00.000Z	64 \| moderate	15.79 \| fine	70.151 \| fine	44.142 \| good	0.889 \| good	7.064 \| good	0.255 \| good
2026-04-24T03:00:00.000Z	79 \| moderate	24.44 \| fine	102.548 \| fine	50.363 \| good	0.512 \| good	8.275 \| good	0.382 \| good
2026-04-24T04:00:00.000Z	64 \| moderate	15.535 \| fine	69.581 \| fine	37.158 \| good	0.896 \| good	7.946 \| good	0.268 \| good
2026-04-24T05:00:00.000Z	69 \| moderate	18.718 \| fine	82.731 \| fine	38.265 \| good	0.837 \| good	6.982 \| good	0.261 \| good
2026-04-24T06:00:00.000Z	67 \| moderate	18.193 \| fine	80.798 \| fine	40.555 \| good	0.778 \| good	6.018 \| good	0.253 \| good
2026-04-24T07:00:00.000Z	69 \| moderate	18.713 \| fine	82.643 \| fine	36.051 \| good	0.727 \| good	5.308 \| good	0.243 \| good
2026-04-24T08:00:00.000Z	69 \| moderate	18.775 \| fine	83.08 \| fine	33.825 \| good	0.676 \| good	4.598 \| good	0.233 \| good
2026-04-24T09:00:00.000Z	67 \| moderate	17.729 \| fine	78.583 \| fine	31.612 \| good	0.626 \| good	3.888 \| good	0.223 \| good
2026-04-24T10:00:00.000Z	62 \| moderate	14.6 \| fine	65.155 \| fine	27.803 \| good	0.624 \| good	3.811 \| good	0.222 \| good
2026-04-24T11:00:00.000Z	56 \| moderate	12.262 \| fine	55.185 \| fine	21.535 \| good	0.623 \| good	3.734 \| good	0.22 \| good
2026-04-24T12:00:00.000Z	58 \| moderate	12.906 \| fine	57.966 \| fine	21.633 \| good	0.621 \| good	3.657 \| good	0.219 \| good
2026-04-24T13:00:00.000Z	62 \| moderate	15.482 \| fine	69.454 \| fine	26.898 \| good	0.692 \| good	2.73 \| good	0.199 \| good
2026-04-24T14:00:00.000Z	62 \| moderate	14.696 \| fine	65.64 \| fine	35.829 \| good	0.764 \| good	1.802 \| good	0.18 \| good
2026-04-24T15:00:00.000Z	54 \| moderate	11.084 \| good	48.893 \| good	42.966 \| good	0.835 \| good	0.875 \| good	0.161 \| good
2026-04-24T16:00:00.000Z	54 \| moderate	10.617 \| good	47.119 \| good	48.351 \| good	0.685 \| good	0.716 \| good	0.155 \| good
2026-04-24T17:00:00.000Z	52 \| moderate	9.503 \| good	42.29 \| good	51.859 \| good	0.535 \| good	0.557 \| good	0.149 \| good
2026-04-24T18:00:00.000Z	52 \| moderate	9.804 \| good	43.569 \| good	52.023 \| good	0.386 \| good	0.398 \| good	0.143 \| good
2026-04-24T19:00:00.000Z	52 \| moderate	9.824 \| good	43.576 \| good	51.975 \| good	0.373 \| good	0.415 \| good	0.141 \| good
2026-04-24T20:00:00.000Z	52 \| moderate	9.89 \| good	44.29 \| good	53.724 \| good	0.361 \| good	0.433 \| good	0.139 \| good
2026-04-24T21:00:00.000Z	58 \| moderate	9.444 \| good	42.245 \| good	56.82 \| fine	0.349 \| good	0.451 \| good	0.136 \| good
2026-04-24T22:00:00.000Z	58 \| moderate	9.395 \| good	41.99 \| good	57.373 \| fine	0.387 \| good	1.035 \| good	0.143 \| good
2026-04-24T23:00:00.000Z	52 \| moderate	10.391 \| good	45.99 \| good	54.741 \| good	0.425 \| good	1.619 \| good	0.149 \| good
2026-04-25T00:00:00.000Z	52 \| moderate	9.72 \| good	43.415 \| good	52.507 \| good	0.463 \| good	2.202 \| good	0.155 \| good
2026-04-25T01:00:00.000Z	52 \| moderate	9.503 \| good	42.392 \| good	45.682 \| good	0.517 \| good	2.589 \| good	0.16 \| good
2026-04-25T02:00:00.000Z	52 \| moderate	10.092 \| good	44.89 \| good	40.413 \| good	0.571 \| good	2.977 \| good	0.166 \| good
2026-04-25T03:00:00.000Z	54 \| moderate	10.951 \| good	48.567 \| good	36.054 \| good	0.625 \| good	3.364 \| good	0.172 \| good
2026-04-25T04:00:00.000Z	52 \| moderate	10.183 \| good	45.262 \| good	32.122 \| good	0.621 \| good	3.14 \| good	0.169 \| good
2026-04-25T05:00:00.000Z	54 \| moderate	11.038 \| good	48.69 \| good	33.796 \| good	0.618 \| good	2.916 \| good	0.167 \| good
2026-04-25T06:00:00.000Z	49 \| good	9.002 \| good	40.021 \| good	26.838 \| good	0.614 \| good	2.693 \| good	0.165 \| good
2026-04-25T07:00:00.000Z	44 \| good	7.654 \| good	33.577 \| good	21.308 \| good	0.587 \| good	2.512 \| good	0.161 \| good
2026-04-25T08:00:00.000Z	33 \| good	6.492 \| good	28.649 \| good	24.295 \| good	0.56 \| good	2.332 \| good	0.156 \| good
2026-04-25T09:00:00.000Z	38 \| good	6.979 \| good	30.789 \| good	27.325 \| good	0.533 \| good	2.152 \| good	0.152 \| good
2026-04-25T10:00:00.000Z	38 \| good	6.623 \| good	29.488 \| good	32.852 \| good	0.54 \| good	2.142 \| good	0.151 \| good
2026-04-25T11:00:00.000Z	54 \| moderate	10.987 \| good	48.618 \| good	21.778 \| good	0.547 \| good	2.132 \| good	0.151 \| good
2026-04-25T12:00:00.000Z	38 \| good	7.056 \| good	31.204 \| good	20.14 \| good	0.554 \| good	2.123 \| good	0.15 \| good
2026-04-25T13:00:00.000Z	27 \| good	5.21 \| good	22.463 \| good	22.199 \| good	0.502 \| good	1.944 \| good	0.147 \| good
2026-04-25T14:00:00.000Z	38 \| good	6.969 \| good	30.901 \| good	32.835 \| good	0.45 \| good	1.766 \| good	0.144 \| good
2026-04-25T15:00:00.000Z	39 \| good	7.116 \| good	31.597 \| good	41.851 \| good	0.399 \| good	1.588 \| good	0.141 \| good
2026-04-25T16:00:00.000Z	45 \| good	5.189 \| good	22.298 \| good	49.39 \| good	0.379 \| good	1.394 \| good	0.139 \| good
2026-04-25T17:00:00.000Z	47 \| good	5.914 \| good	25.842 \| good	50.831 \| good	0.36 \| good	1.201 \| good	0.137 \| good
2026-04-25T18:00:00.000Z	45 \| good	6.042 \| good	26.928 \| good	49.399 \| good	0.341 \| good	1.007 \| good	0.135 \| good
2026-04-25T19:00:00.000Z	46 \| good	5.997 \| good	26.822 \| good	49.63 \| good	0.325 \| good	1.082 \| good	0.136 \| good
2026-04-25T20:00:00.000Z	46 \| good	5.874 \| good	25.715 \| good	49.556 \| good	0.308 \| good	1.158 \| good	0.137 \| good
2026-04-25T21:00:00.000Z	45 \| good	4.506 \| good	19.531 \| good	48.535 \| good	0.292 \| good	1.233 \| good	0.139 \| good
2026-04-25T22:00:00.000Z	41 \| good	4.694 \| good	20.498 \| good	44.174 \| good	0.267 \| good	1.67 \| good	0.143 \| good
2026-04-25T23:00:00.000Z	44 \| good	6.966 \| good	30.922 \| good	47.345 \| good	0.241 \| good	2.107 \| good	0.148 \| good
2026-04-26T00:00:00.000Z	32 \| good	3.484 \| good	3.916 \| good	35.385 \| good	0.216 \| good	2.552 \| good	0.152 \| good
2026-04-26T01:00:00.000Z	45 \| good	1.281 \| good	5.122 \| good	48.795 \| good	0.25 \| good	4.149 \| good	0.172 \| good
2026-04-26T02:00:00.000Z	43 \| good	2.544 \| good	10.47 \| good	46.37 \| good	0.285 \| good	5.753 \| good	0.192 \| good
2026-04-26T03:00:00.000Z	38 \| good	4.621 \| good	19.901 \| good	40.617 \| good	0.319 \| good	7.358 \| good	0.212 \| good

Chattanooga

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Chattanooga, Tennessee air quality map: Track AQI near you

0.38ppm

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 02:00:00 on 2026-04-24.

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 06:00:00 on 2026-04-23.

What is the current air quality in Chattanooga, Tennessee?

The current air quality in Chattanooga, Tennessee is 79, 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 24.44 μg/m³.

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

The current PM₁₀ concentration at Chattanooga, Tennessee is 102.548 μg/m³.

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

The current carbon monoxide (CO) concentration at Chattanooga, Tennessee is 0.382 ppm.

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

The current sulfur dioxide (SO₂) concentration at Chattanooga, Tennessee is 0.512 ppb.

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

The current ozone (O₃) concentration at Chattanooga, Tennessee is 50.363 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Chattanooga, Tennessee is 8.275 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-04-22T04:00:00.000Z	52 \| moderate	9.933 \| good	43.277 \| good	46.907 \| good	0.596 \| good	22.032 \| good	0.385 \| good
2026-04-22T05:00:00.000Z	58 \| moderate	12.913 \| fine	58.167 \| fine	45.853 \| good	0.536 \| good	31.574 \| good	0.444 \| good
2026-04-22T06:00:00.000Z	58 \| moderate	12.924 \| fine	58.276 \| fine	43.587 \| good	0.56 \| good	30.184 \| good	0.317 \| good
2026-04-22T07:00:00.000Z	62 \| moderate	15.31 \| fine	68.004 \| fine	43.966 \| good	0.783 \| good	28.337 \| good	0.334 \| good
2026-04-22T08:00:00.000Z	58 \| moderate	13.226 \| fine	58.658 \| fine	40.866 \| good	1.041 \| good	26.396 \| good	0.303 \| good
2026-04-22T09:00:00.000Z	58 \| moderate	12.984 \| fine	56.924 \| fine	35.206 \| good	0.733 \| good	23.669 \| good	0.286 \| good
2026-04-22T10:00:00.000Z	56 \| moderate	12.212 \| fine	54.416 \| good	33.195 \| good	0.755 \| good	21.928 \| good	0.286 \| good
2026-04-22T11:00:00.000Z	56 \| moderate	11.689 \| good	50.541 \| good	29.13 \| good	0.656 \| good	23.926 \| good	0.41 \| good
2026-04-22T12:00:00.000Z	56 \| moderate	11.748 \| good	52.278 \| good	29.633 \| good	0.77 \| good	25.093 \| good	0.425 \| good
2026-04-22T13:00:00.000Z	56 \| moderate	12.131 \| fine	54.093 \| good	20.906 \| good	0.811 \| good	22.625 \| good	0.53 \| good
2026-04-22T14:00:00.000Z	58 \| moderate	13.03 \| fine	57.285 \| fine	25.08 \| good	0.612 \| good	17.747 \| good	0.465 \| good
2026-04-22T15:00:00.000Z	60 \| moderate	13.679 \| fine	61.273 \| fine	31.521 \| good	1.156 \| good	23.206 \| good	0.54 \| good
2026-04-22T16:00:00.000Z	60 \| moderate	13.683 \| fine	61.066 \| fine	31.584 \| good	1.191 \| good	21.331 \| good	0.509 \| good
2026-04-22T17:00:00.000Z	60 \| moderate	13.643 \| fine	60.896 \| fine	37.688 \| good	0.984 \| good	14.716 \| good	0.319 \| good
2026-04-22T18:00:00.000Z	58 \| moderate	12.956 \| fine	56.952 \| fine	45.634 \| good	1.073 \| good	7.68 \| good	0.264 \| good
2026-04-22T19:00:00.000Z	56 \| moderate	12.252 \| fine	54.582 \| good	50.434 \| good	0.604 \| good	8.451 \| good	0.247 \| good
2026-04-22T20:00:00.000Z	54 \| moderate	11.364 \| good	48.947 \| good	52.766 \| good	0.603 \| good	9.274 \| good	0.293 \| good
2026-04-22T21:00:00.000Z	61 \| moderate	10.956 \| good	47.165 \| good	57.804 \| fine	1.132 \| good	7.554 \| good	0.261 \| good
2026-04-22T22:00:00.000Z	61 \| moderate	10.558 \| good	46.175 \| good	58.392 \| fine	0.96 \| good	7.77 \| good	0.247 \| good
2026-04-22T23:00:00.000Z	64 \| moderate	10.448 \| good	45.144 \| good	59.333 \| fine	0.754 \| good	8.357 \| good	0.309 \| good
2026-04-23T00:00:00.000Z	64 \| moderate	10.256 \| good	44.241 \| good	58.507 \| fine	0.716 \| good	5.068 \| good	0.233 \| good
2026-04-23T01:00:00.000Z	61 \| moderate	10.53 \| good	46.098 \| good	58.139 \| fine	0.702 \| good	5.363 \| good	0.293 \| good
2026-04-23T02:00:00.000Z	61 \| moderate	10.437 \| good	45.657 \| good	58.219 \| fine	0.61 \| good	11.668 \| good	0.307 \| good
2026-04-23T03:00:00.000Z	54 \| moderate	10.652 \| good	46.509 \| good	54.848 \| good	0.459 \| good	30.448 \| good	0.367 \| good
2026-04-23T04:00:00.000Z	54 \| moderate	10.965 \| good	47.495 \| good	39.18 \| good	0.46 \| good	34.38 \| good	0.409 \| good
2026-04-23T05:00:00.000Z	54 \| moderate	10.98 \| good	47.197 \| good	45.106 \| good	0.429 \| good	30.966 \| good	0.437 \| good
2026-04-23T06:00:00.000Z	54 \| moderate	11.068 \| good	47.307 \| good	44.232 \| good	0.704 \| good	32.282 \| good	0.481 \| good
2026-04-23T07:00:00.000Z	56 \| moderate	11.744 \| good	49.9 \| good	34.509 \| good	0.539 \| good	29.628 \| good	0.476 \| good
2026-04-23T08:00:00.000Z	56 \| moderate	12.102 \| fine	52.621 \| good	32.709 \| good	0.744 \| good	23.91 \| good	0.433 \| good
2026-04-23T09:00:00.000Z	58 \| moderate	12.948 \| fine	56.693 \| fine	31.175 \| good	0.73 \| good	21.244 \| good	0.386 \| good
2026-04-23T10:00:00.000Z	58 \| moderate	13.146 \| fine	58.732 \| fine	25.953 \| good	0.605 \| good	22.516 \| good	0.415 \| good
2026-04-23T11:00:00.000Z	60 \| moderate	13.624 \| fine	60.378 \| fine	23.978 \| good	0.813 \| good	24.606 \| good	0.565 \| good
2026-04-23T12:00:00.000Z	60 \| moderate	13.976 \| fine	60.406 \| fine	18.329 \| good	0.606 \| good	25.696 \| good	0.623 \| good
2026-04-23T13:00:00.000Z	60 \| moderate	13.97 \| fine	60.383 \| fine	13.633 \| good	0.567 \| good	22.771 \| good	0.503 \| good
2026-04-23T14:00:00.000Z	60 \| moderate	13.979 \| fine	60.423 \| fine	17.957 \| good	0.88 \| good	22.9 \| good	0.516 \| good
2026-04-23T15:00:00.000Z	64 \| moderate	15.728 \| fine	67.958 \| fine	29.494 \| good	0.825 \| good	23.94 \| good	0.387 \| good
2026-04-23T16:00:00.000Z	66 \| moderate	16.728 \| fine	73.964 \| fine	41.061 \| good	1.152 \| good	20.998 \| good	0.379 \| good
2026-04-23T17:00:00.000Z	66 \| moderate	16.813 \| fine	73.766 \| fine	40.166 \| good	1.646 \| good	16.843 \| good	0.305 \| good
2026-04-23T18:00:00.000Z	67 \| moderate	17.639 \| fine	75.716 \| fine	48.665 \| good	1.181 \| good	10.325 \| good	0.262 \| good
2026-04-23T19:00:00.000Z	67 \| moderate	18.039 \| fine	77.38 \| fine	53.838 \| good	0.827 \| good	11.309 \| good	0.276 \| good
2026-04-23T20:00:00.000Z	67 \| moderate	18.293 \| fine	78.78 \| fine	56.207 \| fine	0.625 \| good	10.572 \| good	0.309 \| good
2026-04-23T21:00:00.000Z	71 \| moderate	19.261 \| fine	82.748 \| fine	60.724 \| fine	0.609 \| good	9.442 \| good	0.32 \| good
2026-04-23T22:00:00.000Z	73 \| moderate	20.528 \| fine	86.553 \| fine	61.461 \| fine	0.527 \| good	8.173 \| good	0.307 \| good
2026-04-23T23:00:00.000Z	73 \| moderate	21.123 \| fine	90.475 \| fine	59.065 \| fine	0.501 \| good	6.971 \| good	0.262 \| good
2026-04-24T00:00:00.000Z	73 \| moderate	21.21 \| fine	90.592 \| fine	56.041 \| fine	0.484 \| good	6.243 \| good	0.307 \| good
2026-04-24T01:00:00.000Z	75 \| moderate	21.866 \| fine	92.431 \| fine	52.82 \| good	0.462 \| good	6.751 \| good	0.291 \| good
2026-04-24T02:00:00.000Z	79 \| moderate	24.44 \| fine	102.548 \| fine	50.363 \| good	0.512 \| good	8.275 \| good	0.382 \| good
2026-04-24T03:00:00.000Z	64 \| moderate	15.79 \| fine	70.151 \| fine	44.142 \| good	0.889 \| good	7.064 \| good	0.255 \| good
2026-04-24T03:00:00.000Z	79 \| moderate	24.44 \| fine	102.548 \| fine	50.363 \| good	0.512 \| good	8.275 \| good	0.382 \| good
2026-04-24T04:00:00.000Z	64 \| moderate	15.535 \| fine	69.581 \| fine	37.158 \| good	0.896 \| good	7.946 \| good	0.268 \| good
2026-04-24T05:00:00.000Z	69 \| moderate	18.718 \| fine	82.731 \| fine	38.265 \| good	0.837 \| good	6.982 \| good	0.261 \| good
2026-04-24T06:00:00.000Z	67 \| moderate	18.193 \| fine	80.798 \| fine	40.555 \| good	0.778 \| good	6.018 \| good	0.253 \| good
2026-04-24T07:00:00.000Z	69 \| moderate	18.713 \| fine	82.643 \| fine	36.051 \| good	0.727 \| good	5.308 \| good	0.243 \| good
2026-04-24T08:00:00.000Z	69 \| moderate	18.775 \| fine	83.08 \| fine	33.825 \| good	0.676 \| good	4.598 \| good	0.233 \| good
2026-04-24T09:00:00.000Z	67 \| moderate	17.729 \| fine	78.583 \| fine	31.612 \| good	0.626 \| good	3.888 \| good	0.223 \| good
2026-04-24T10:00:00.000Z	62 \| moderate	14.6 \| fine	65.155 \| fine	27.803 \| good	0.624 \| good	3.811 \| good	0.222 \| good
2026-04-24T11:00:00.000Z	56 \| moderate	12.262 \| fine	55.185 \| fine	21.535 \| good	0.623 \| good	3.734 \| good	0.22 \| good
2026-04-24T12:00:00.000Z	58 \| moderate	12.906 \| fine	57.966 \| fine	21.633 \| good	0.621 \| good	3.657 \| good	0.219 \| good
2026-04-24T13:00:00.000Z	62 \| moderate	15.482 \| fine	69.454 \| fine	26.898 \| good	0.692 \| good	2.73 \| good	0.199 \| good
2026-04-24T14:00:00.000Z	62 \| moderate	14.696 \| fine	65.64 \| fine	35.829 \| good	0.764 \| good	1.802 \| good	0.18 \| good
2026-04-24T15:00:00.000Z	54 \| moderate	11.084 \| good	48.893 \| good	42.966 \| good	0.835 \| good	0.875 \| good	0.161 \| good
2026-04-24T16:00:00.000Z	54 \| moderate	10.617 \| good	47.119 \| good	48.351 \| good	0.685 \| good	0.716 \| good	0.155 \| good
2026-04-24T17:00:00.000Z	52 \| moderate	9.503 \| good	42.29 \| good	51.859 \| good	0.535 \| good	0.557 \| good	0.149 \| good
2026-04-24T18:00:00.000Z	52 \| moderate	9.804 \| good	43.569 \| good	52.023 \| good	0.386 \| good	0.398 \| good	0.143 \| good
2026-04-24T19:00:00.000Z	52 \| moderate	9.824 \| good	43.576 \| good	51.975 \| good	0.373 \| good	0.415 \| good	0.141 \| good
2026-04-24T20:00:00.000Z	52 \| moderate	9.89 \| good	44.29 \| good	53.724 \| good	0.361 \| good	0.433 \| good	0.139 \| good
2026-04-24T21:00:00.000Z	58 \| moderate	9.444 \| good	42.245 \| good	56.82 \| fine	0.349 \| good	0.451 \| good	0.136 \| good
2026-04-24T22:00:00.000Z	58 \| moderate	9.395 \| good	41.99 \| good	57.373 \| fine	0.387 \| good	1.035 \| good	0.143 \| good
2026-04-24T23:00:00.000Z	52 \| moderate	10.391 \| good	45.99 \| good	54.741 \| good	0.425 \| good	1.619 \| good	0.149 \| good
2026-04-25T00:00:00.000Z	52 \| moderate	9.72 \| good	43.415 \| good	52.507 \| good	0.463 \| good	2.202 \| good	0.155 \| good
2026-04-25T01:00:00.000Z	52 \| moderate	9.503 \| good	42.392 \| good	45.682 \| good	0.517 \| good	2.589 \| good	0.16 \| good
2026-04-25T02:00:00.000Z	52 \| moderate	10.092 \| good	44.89 \| good	40.413 \| good	0.571 \| good	2.977 \| good	0.166 \| good
2026-04-25T03:00:00.000Z	54 \| moderate	10.951 \| good	48.567 \| good	36.054 \| good	0.625 \| good	3.364 \| good	0.172 \| good
2026-04-25T04:00:00.000Z	52 \| moderate	10.183 \| good	45.262 \| good	32.122 \| good	0.621 \| good	3.14 \| good	0.169 \| good
2026-04-25T05:00:00.000Z	54 \| moderate	11.038 \| good	48.69 \| good	33.796 \| good	0.618 \| good	2.916 \| good	0.167 \| good
2026-04-25T06:00:00.000Z	49 \| good	9.002 \| good	40.021 \| good	26.838 \| good	0.614 \| good	2.693 \| good	0.165 \| good
2026-04-25T07:00:00.000Z	44 \| good	7.654 \| good	33.577 \| good	21.308 \| good	0.587 \| good	2.512 \| good	0.161 \| good
2026-04-25T08:00:00.000Z	33 \| good	6.492 \| good	28.649 \| good	24.295 \| good	0.56 \| good	2.332 \| good	0.156 \| good
2026-04-25T09:00:00.000Z	38 \| good	6.979 \| good	30.789 \| good	27.325 \| good	0.533 \| good	2.152 \| good	0.152 \| good
2026-04-25T10:00:00.000Z	38 \| good	6.623 \| good	29.488 \| good	32.852 \| good	0.54 \| good	2.142 \| good	0.151 \| good
2026-04-25T11:00:00.000Z	54 \| moderate	10.987 \| good	48.618 \| good	21.778 \| good	0.547 \| good	2.132 \| good	0.151 \| good
2026-04-25T12:00:00.000Z	38 \| good	7.056 \| good	31.204 \| good	20.14 \| good	0.554 \| good	2.123 \| good	0.15 \| good
2026-04-25T13:00:00.000Z	27 \| good	5.21 \| good	22.463 \| good	22.199 \| good	0.502 \| good	1.944 \| good	0.147 \| good
2026-04-25T14:00:00.000Z	38 \| good	6.969 \| good	30.901 \| good	32.835 \| good	0.45 \| good	1.766 \| good	0.144 \| good
2026-04-25T15:00:00.000Z	39 \| good	7.116 \| good	31.597 \| good	41.851 \| good	0.399 \| good	1.588 \| good	0.141 \| good
2026-04-25T16:00:00.000Z	45 \| good	5.189 \| good	22.298 \| good	49.39 \| good	0.379 \| good	1.394 \| good	0.139 \| good
2026-04-25T17:00:00.000Z	47 \| good	5.914 \| good	25.842 \| good	50.831 \| good	0.36 \| good	1.201 \| good	0.137 \| good
2026-04-25T18:00:00.000Z	45 \| good	6.042 \| good	26.928 \| good	49.399 \| good	0.341 \| good	1.007 \| good	0.135 \| good
2026-04-25T19:00:00.000Z	46 \| good	5.997 \| good	26.822 \| good	49.63 \| good	0.325 \| good	1.082 \| good	0.136 \| good
2026-04-25T20:00:00.000Z	46 \| good	5.874 \| good	25.715 \| good	49.556 \| good	0.308 \| good	1.158 \| good	0.137 \| good
2026-04-25T21:00:00.000Z	45 \| good	4.506 \| good	19.531 \| good	48.535 \| good	0.292 \| good	1.233 \| good	0.139 \| good
2026-04-25T22:00:00.000Z	41 \| good	4.694 \| good	20.498 \| good	44.174 \| good	0.267 \| good	1.67 \| good	0.143 \| good
2026-04-25T23:00:00.000Z	44 \| good	6.966 \| good	30.922 \| good	47.345 \| good	0.241 \| good	2.107 \| good	0.148 \| good
2026-04-26T00:00:00.000Z	32 \| good	3.484 \| good	3.916 \| good	35.385 \| good	0.216 \| good	2.552 \| good	0.152 \| good
2026-04-26T01:00:00.000Z	45 \| good	1.281 \| good	5.122 \| good	48.795 \| good	0.25 \| good	4.149 \| good	0.172 \| good
2026-04-26T02:00:00.000Z	43 \| good	2.544 \| good	10.47 \| good	46.37 \| good	0.285 \| good	5.753 \| good	0.192 \| good
2026-04-26T03:00:00.000Z	38 \| good	4.621 \| good	19.901 \| good	40.617 \| good	0.319 \| good	7.358 \| good	0.212 \| 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?