Data / Highest daily Air Quality Index (US EPA) / Hamblen County

Highest daily Air Quality Index (US EPA) in Hamblen County

Highest daily Air Quality Index (US EPA) in Hamblen County was 156 in 2006, according to the U.S. Environmental Protection Agency.

2006, index156
Series high1741994
Series low81993

Next release: Tuesday, 13 July 2027, estimated by Invokely from past publication dates (low confidence), not announced by the publisher. Release calendar

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Highest daily Air Quality Index (US EPA) in Hamblen County, 1993 to 2006

05010015020019931995199820061993: 8 index1994: 174 index1995: 39 index1997: 159 index1998: 61 index2001: 164 index2002: 100 index2006: 156 index0501001502001993199720061993: 8 index1994: 174 index1995: 39 index1997: 159 index1998: 61 index2001: 164 index2002: 100 index2006: 156 index
index. Source: EPA, EPA AirData annual AQI by county: highest daily AQI. Retrieved 2026-10-12, published 2026-07-13.
All 8 values
Periodindex
2006156
2002100
2001164
199861
1997159
199539
1994174
19938

Hamblen County compared with nearby places

Anderson County: 202 indexBlount County: 159 indexBradley County: 87 indexClaiborne County: 115 indexDavidson County: 182 indexDeKalb County: 133 indexDyer County: 153 indexHamblen County: 156 indexHamilton County: 169 indexHaywood County: 203 indexJefferson County: 179 indexKnox County: 161 indexLawrence County: 115 indexLoudon County: 166 indexMcMinn County: 106 indexMadison County: 158 indexMaury County: 93 indexMeigs County: 154 indexMontgomery County: 113 indexPutnam County: 97 indexRoane County: 96 indexRutherford County: 119 indexSevier County: 159 indexShelby County: 200 indexSullivan County: 182 indexSumner County: 182 indexUnion County: 77 indexWilliamson County: 150 indexWilson County: 151 index
  • Under 110
  • 110 to 150
  • 150 to 160
  • 160 to 180
  • 180 and over
  • No data
Highest daily Air Quality Index (US EPA), 2006, index. Hamblen County is outlined. Same source and period for every area shown. Source: U.S. Environmental Protection Agency. Boundaries: U.S. Census Bureau cartographic boundary files.

Rankings

Definition

Highest daily Air Quality Index (AQI) value recorded in a US county during the year, from the EPA AirData annual summaries. Values above 500 are beyond the AQI scale and are published as EPA computes them.

A single day decides the value, so one wildfire or dust event can set it. Dust from the dry Owens Lake bed puts Inyo and Mono counties in California in the thousands. United States counties with air quality monitors only, about 1,000 of some 3,100 in recent years; a county without monitors has no value. The number of days with an AQI differs between counties because some monitors run only in the ozone season.

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How to cite

U.S. Environmental Protection Agency, Air Quality System, AirData. EPA AirData annual AQI by county: highest daily AQI. https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Environmental Protection Agency. (2026). EPA AirData annual AQI by county: highest daily AQI (Highest daily Air Quality Index (US EPA), Hamblen County, 1993 to 2006) [Data set]. Retrieved October 12, 2026, from https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual

MLA 9

EPA AirData annual AQI by county: highest daily AQI, Highest daily Air Quality Index (US EPA), Hamblen County, 1993 to 2006. U.S. Environmental Protection Agency, 13 July 2026, https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Invokely, https://invokely.ai/en/highest-daily-air-quality-index/hamblen-county-tennessee. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Environmental Protection Agency. 2026. EPA AirData annual AQI by county: highest daily AQI. Highest daily Air Quality Index (US EPA), Hamblen County, 1993 to 2006. Dataset. Accessed October 12, 2026. https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Also distributed by Invokely, https://invokely.ai/en/highest-daily-air-quality-index/hamblen-county-tennessee.

Harvard

U.S. Environmental Protection Agency (2026) EPA AirData annual AQI by county: highest daily AQI, Highest daily Air Quality Index (US EPA), Hamblen County, 1993 to 2006 [Dataset]. Available at: https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual, via Invokely: https://invokely.ai/en/highest-daily-air-quality-index/hamblen-county-tennessee (Accessed: 12 October 2026).

BibTeX
@misc{environmental_highest_daily_air_quality_2006,
  author = {{U.S. Environmental Protection Agency}},
  title = {{EPA AirData annual AQI by county: highest daily AQI: Highest daily Air Quality Index (US EPA), Hamblen County, 1993 to 2006}},
  year = {2026},
  howpublished = {Data set},
  url = {https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/en/highest-daily-air-quality-index/hamblen-county-tennessee. Publisher attribution: U.S. Environmental Protection Agency, Air Quality System, AirData. EPA AirData annual AQI by county: highest daily AQI. https://aqs.epa.gov/aqsweb/airdata/download\_files.html\#Annual. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Environmental Protection Agency
TI  - EPA AirData annual AQI by county: highest daily AQI: Highest daily Air Quality Index (US EPA), Hamblen County, 1993 to 2006
PY  - 2026
DA  - 2026/07/13
PB  - U.S. Environmental Protection Agency
DB  - Invokely
UR  - https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual
L2  - https://invokely.ai/en/highest-daily-air-quality-index/hamblen-county-tennessee
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/highest-daily-air-quality-index/hamblen-county-tennessee.
N1  - Publisher attribution: U.S. Environmental Protection Agency, Air Quality System, AirData. EPA AirData annual AQI by county: highest daily AQI. https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Retrieved 2026-10-12.
ER  -
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Questions

What is the highest daily Air Quality Index (US EPA) in Hamblen County?

Highest daily Air Quality Index (US EPA) in Hamblen County was 156 in 2006, according to the U.S. Environmental Protection Agency.

Where does this figure come from?

U.S. Environmental Protection Agency. EPA AirData annual AQI by county: highest daily AQI. Retrieved by Invokely on 2026-10-12.

What was the highest highest daily Air Quality Index (US EPA) in Hamblen County?

174 in 1994, the highest value since 1993 in this series.

Related statistics for Hamblen County

All statistics for Hamblen County | Hamblen County in figures