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

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

Highest daily Air Quality Index (US EPA) in Whitley County was 33 in 2002, according to the U.S. Environmental Protection Agency. That is down 8 from 2001.

2002, index33
Change on 2001-8
Series high892000
Series low332002

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 Whitley County, 1991 to 2002

204060801001991199319951997199920021991: 47 index1992: 43 index1993: 50 index1994: 59 index1995: 62 index1996: 42 index1997: 52 index1998: 43 index1999: 63 index2000: 89 index2001: 41 index2002: 33 index2040608010019911995199920021991: 47 index1992: 43 index1993: 50 index1994: 59 index1995: 62 index1996: 42 index1997: 52 index1998: 43 index1999: 63 index2000: 89 index2001: 41 index2002: 33 index
index. Source: EPA, EPA AirData annual AQI by county: highest daily AQI. Retrieved 2026-10-12, published 2026-07-13.
All 12 values
Periodindex
200233
200141
200089
199963
199843
199752
199642
199562
199459
199350
199243
199147

Whitley County compared with nearby places

Bell County: 182 indexBoone County: 187 indexBoyd County: 202 indexBullitt County: 197 indexCampbell County: 209 indexCarter County: 172 indexChristian County: 179 indexDaviess County: 190 indexEdmonson County: 187 indexFayette County: 156 indexFranklin County: 130 indexGraves County: 182 indexGreenup County: 187 indexHancock County: 179 indexHardin County: 185 indexHarlan County: 40 indexHenderson County: 197 indexJefferson County: 197 indexJessamine County: 169 indexKenton County: 206 indexLaurel County: 118 indexLivingston County: 177 indexMcCracken County: 169 indexMcLean County: 179 indexMadison County: 136 indexMarshall County: 52 indexMorgan County: 187 indexMuhlenberg County: 97 indexOldham County: 200 indexPerry County: 156 indexPike County: 151 indexPulaski County: 166 indexScott County: 151 indexSimpson County: 154 indexTrigg County: 182 indexWarren County: 185 indexWashington County: 197 indexWhitley County: 33 index
  • Under 140
  • 140 to 170
  • 170 to 180
  • 180 to 190
  • 190 to 200
  • 200 and over
  • No data
Highest daily Air Quality Index (US EPA), 2002, index. Whitley 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), Whitley County, 1991 to 2002) [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), Whitley County, 1991 to 2002. 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/whitley-county-kentucky. 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), Whitley County, 1991 to 2002. 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/whitley-county-kentucky.

Harvard

U.S. Environmental Protection Agency (2026) EPA AirData annual AQI by county: highest daily AQI, Highest daily Air Quality Index (US EPA), Whitley County, 1991 to 2002 [Dataset]. Available at: https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual, via Invokely: https://invokely.ai/en/highest-daily-air-quality-index/whitley-county-kentucky (Accessed: 12 October 2026).

BibTeX
@misc{environmental_highest_daily_air_quality_2002,
  author = {{U.S. Environmental Protection Agency}},
  title = {{EPA AirData annual AQI by county: highest daily AQI: Highest daily Air Quality Index (US EPA), Whitley County, 1991 to 2002}},
  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/whitley-county-kentucky. 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), Whitley County, 1991 to 2002
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/whitley-county-kentucky
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/highest-daily-air-quality-index/whitley-county-kentucky.
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 Whitley County?

Highest daily Air Quality Index (US EPA) in Whitley County was 33 in 2002, according to the U.S. Environmental Protection Agency. That is down 8 from 2001.

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 Whitley County?

89 in 2000, the highest value since 1991 in this series.

Related statistics for Whitley County

All statistics for Whitley County | Whitley County in figures