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

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

Highest daily Air Quality Index (US EPA) in Haywood County was 93 in 2008, according to the U.S. Environmental Protection Agency. That is down 29 from 2007.

2008, index93
Change on 2007-29
Series high2051993
Series low932008

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 Haywood County, 1993 to 2008

7510012515017520022519931995199719992001200320081993: 205 index1994: 192 index1995: 164 index1996: 174 index1997: 151 index1998: 205 index1999: 192 index2000: 187 index2001: 161 index2002: 177 index2003: 166 index2006: 203 index2007: 122 index2008: 93 index501001502002501993199820081993: 205 index1994: 192 index1995: 164 index1996: 174 index1997: 151 index1998: 205 index1999: 192 index2000: 187 index2001: 161 index2002: 177 index2003: 166 index2006: 203 index2007: 122 index2008: 93 index
index. Source: EPA, EPA AirData annual AQI by county: highest daily AQI. Retrieved 2026-10-12, published 2026-07-13.
All 14 values
Periodindex
200893
2007122
2006203
2003166
2002177
2001161
2000187
1999192
1998205
1997151
1996174
1995164
1994192
1993205

Haywood County compared with nearby places

Anderson County: 151 indexBlount County: 154 indexBradley County: 36 indexClaiborne County: 115 indexDavidson County: 129 indexDeKalb County: 97 indexHamilton County: 182 indexHaywood County: 93 indexJefferson County: 164 indexKnox County: 174 indexLawrence County: 96 indexLoudon County: 136 indexMcMinn County: 57 indexMadison County: 38 indexMeigs County: 129 indexMontgomery County: 91 indexPutnam County: 44 indexRoane County: 50 indexRutherford County: 108 indexSevier County: 151 indexShelby County: 190 indexSullivan County: 169 indexSumner County: 161 indexUnion County: 97 indexWilliamson County: 126 indexWilson County: 136 index
  • Under 91
  • 91 to 110
  • 110 to 140
  • 140 to 160
  • 160 and over
  • No data
Highest daily Air Quality Index (US EPA), 2008, index. Haywood 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), Haywood County, 1993 to 2008) [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), Haywood County, 1993 to 2008. 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/haywood-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), Haywood County, 1993 to 2008. 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/haywood-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), Haywood County, 1993 to 2008 [Dataset]. Available at: https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual, via Invokely: https://invokely.ai/en/highest-daily-air-quality-index/haywood-county-tennessee (Accessed: 12 October 2026).

BibTeX
@misc{environmental_highest_daily_air_quality_2008,
  author = {{U.S. Environmental Protection Agency}},
  title = {{EPA AirData annual AQI by county: highest daily AQI: Highest daily Air Quality Index (US EPA), Haywood County, 1993 to 2008}},
  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/haywood-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), Haywood County, 1993 to 2008
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/haywood-county-tennessee
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/highest-daily-air-quality-index/haywood-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 Haywood County?

Highest daily Air Quality Index (US EPA) in Haywood County was 93 in 2008, according to the U.S. Environmental Protection Agency. That is down 29 from 2007.

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 Haywood County?

205 in 1993, the highest value since 1993 in this series.

Related statistics for Haywood County

All statistics for Haywood County | Haywood County in figures