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

Highest daily Air Quality Index (US EPA) in Jeff Davis County

Highest daily Air Quality Index (US EPA) in Jeff Davis County was 59 in 2010, according to the U.S. Environmental Protection Agency. That is down 29 from 2009.

2010, index59
Change on 2009-29
Series high882009
Series low462004

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 Jeff Davis County, 2002 to 2010

405060708090200220042006200820102002: 53 index2003: 77 index2004: 46 index2005: 67 index2006: 57 index2007: 57 index2008: 63 index2009: 88 index2010: 59 index4060801002002200520102002: 53 index2003: 77 index2004: 46 index2005: 67 index2006: 57 index2007: 57 index2008: 63 index2009: 88 index2010: 59 index
index. Source: EPA, EPA AirData annual AQI by county: highest daily AQI. Retrieved 2026-10-12, published 2026-07-13.
All 9 values
Periodindex
201059
200988
200863
200757
200657
200567
200446
200377
200253

Jeff Davis County compared with nearby places

Bell County: 115 indexBexar County: 154 indexBowie County: 73 indexBrazoria County: 172 indexBrewster County: 97 indexCameron County: 105 indexCollin County: 154 indexCulberson County: 72 indexDallas County: 150 indexDenton County: 143 indexEctor County: 72 indexEllis County: 115 indexEl Paso County: 191 indexFayette County: 78 indexGalveston County: 164 indexGregg County: 133 indexHarris County: 179 indexHarrison County: 126 indexHays County: 133 indexHidalgo County: 91 indexHood County: 133 indexHunt County: 126 indexJeff Davis County: 59 indexJefferson County: 164 indexJohnson County: 140 indexKaufman County: 93 indexKleberg County: 92 indexLubbock County: 75 indexMcLennan County: 115 indexMaverick County: 82 indexMontgomery County: 143 indexNavarro County: 105 indexNueces County: 126 indexOrange County: 136 indexParker County: 164 indexPolk County: 150 indexPotter County: 65 indexRandall County: 84 indexRockwall County: 150 indexSmith County: 115 indexTarrant County: 172 indexTravis County: 122 indexVictoria County: 112 indexWebb County: 100 indexWichita County: 65 index
  • Under 79
  • 79 to 100
  • 100 to 120
  • 120 to 140
  • 140 to 150
  • 150 and over
  • No data
Highest daily Air Quality Index (US EPA), 2010, index. Jeff Davis 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), Jeff Davis County, 2002 to 2010) [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), Jeff Davis County, 2002 to 2010. 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/jeff-davis-county-texas. 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), Jeff Davis County, 2002 to 2010. 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/jeff-davis-county-texas.

Harvard

U.S. Environmental Protection Agency (2026) EPA AirData annual AQI by county: highest daily AQI, Highest daily Air Quality Index (US EPA), Jeff Davis County, 2002 to 2010 [Dataset]. Available at: https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual, via Invokely: https://invokely.ai/en/highest-daily-air-quality-index/jeff-davis-county-texas (Accessed: 12 October 2026).

BibTeX
@misc{environmental_highest_daily_air_quality_2010,
  author = {{U.S. Environmental Protection Agency}},
  title = {{EPA AirData annual AQI by county: highest daily AQI: Highest daily Air Quality Index (US EPA), Jeff Davis County, 2002 to 2010}},
  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/jeff-davis-county-texas. 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), Jeff Davis County, 2002 to 2010
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/jeff-davis-county-texas
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/highest-daily-air-quality-index/jeff-davis-county-texas.
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 Jeff Davis County?

Highest daily Air Quality Index (US EPA) in Jeff Davis County was 59 in 2010, according to the U.S. Environmental Protection Agency. That is down 29 from 2009.

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 Jeff Davis County?

88 in 2009, the highest value since 2002 in this series.

Related statistics for Jeff Davis County

All statistics for Jeff Davis County | Jeff Davis County in figures