Data / Median Air Quality Index (US EPA) / Tazewell County

Median Air Quality Index (US EPA) in Tazewell County

Median Air Quality Index (US EPA) in Tazewell County was 13 in 1999, according to the U.S. Environmental Protection Agency. That is down 3 from 1998. That is the 41st highest of 42 counties in 1999.

1999, index13
Change on 1998-3
Rank41st of 42Counties in Virginia ranked
Series high191995
Series low131997

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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Median Air Quality Index (US EPA) in Tazewell County, 1995 to 1999

1214161820199519961997199819991995: 19 index1996: 16 index1997: 13 index1998: 16 index1999: 13 index12141618201995199719991995: 19 index1996: 16 index1997: 13 index1998: 16 index1999: 13 index
index. Source: EPA, EPA AirData annual AQI by county: median daily AQI. Retrieved 2026-10-12, published 2026-07-13.
All 5 values
Periodindex
199913
199816
199713
199616
199519

Tazewell County compared with nearby places

Arlington County: 48 indexCaroline County: 35 indexCarroll County: 17 indexCharles City County: 43 indexChesterfield County: 50 indexCulpeper County: 16 indexFairfax County: 56 indexFauquier County: 51 indexFrederick County: 50 indexGiles County: 49 indexHanover County: 50 indexHenrico County: 54 indexKing William County: 14 indexLoudoun County: 44 indexMadison County: 51 indexNorthumberland County: 12 indexPage County: 52 indexPrince Edward County: 42 indexPrince William County: 37 indexRoanoke County: 34 indexRockbridge County: 61 indexRockingham County: 21 indexStafford County: 54 indexTazewell County: 13 indexWarren County: 18 indexWise County: 19 indexWythe County: 71 indexAlexandria city: 43 indexBristol city: 62 indexCharlottesville city: 17 indexChesapeake city: 56 indexFredericksburg city: 16 indexHampton city: 44 indexLynchburg city: 59 indexNewport News city: 16 indexNorfolk city: 34 indexRichmond city: 56 indexRoanoke city: 15 indexSalem city: 58 indexSuffolk city: 51 indexVirginia Beach city: 57 indexWinchester city: 19 index
  • Under 17
  • 17 to 34
  • 34 to 44
  • 44 to 51
  • 51 to 56
  • 56 and over
  • No data
Median Air Quality Index (US EPA), 1999, index. Tazewell 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

Median of the daily Air Quality Index (AQI) values of a US county over the days of the year with an AQI, from the EPA AirData annual summaries.

More on how it is measured
  • The daily county AQI is the highest AQI among the monitors and pollutants reported that day (ozone, PM2.5, PM10, carbon monoxide and nitrogen dioxide).
  • Lower is cleaner: 0 to 50 is good, 51 to 100 moderate and above 100 unhealthy for sensitive groups.

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: median 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: median daily AQI (Median Air Quality Index (US EPA), Tazewell County, 1995 to 1999) [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: median daily AQI, Median Air Quality Index (US EPA), Tazewell County, 1995 to 1999. U.S. Environmental Protection Agency, 13 July 2026, https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Invokely, https://invokely.ai/en/median-air-quality-index/tazewell-county-virginia. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Environmental Protection Agency. 2026. EPA AirData annual AQI by county: median daily AQI. Median Air Quality Index (US EPA), Tazewell County, 1995 to 1999. Dataset. Accessed October 12, 2026. https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Also distributed by Invokely, https://invokely.ai/en/median-air-quality-index/tazewell-county-virginia.

Harvard

U.S. Environmental Protection Agency (2026) EPA AirData annual AQI by county: median daily AQI, Median Air Quality Index (US EPA), Tazewell County, 1995 to 1999 [Dataset]. Available at: https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual, via Invokely: https://invokely.ai/en/median-air-quality-index/tazewell-county-virginia (Accessed: 12 October 2026).

BibTeX
@misc{environmental_median_air_quality_index_1999,
  author = {{U.S. Environmental Protection Agency}},
  title = {{EPA AirData annual AQI by county: median daily AQI: Median Air Quality Index (US EPA), Tazewell County, 1995 to 1999}},
  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/median-air-quality-index/tazewell-county-virginia. Publisher attribution: U.S. Environmental Protection Agency, Air Quality System, AirData. EPA AirData annual AQI by county: median 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: median daily AQI: Median Air Quality Index (US EPA), Tazewell County, 1995 to 1999
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/median-air-quality-index/tazewell-county-virginia
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/median-air-quality-index/tazewell-county-virginia.
N1  - Publisher attribution: U.S. Environmental Protection Agency, Air Quality System, AirData. EPA AirData annual AQI by county: median 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 median Air Quality Index (US EPA) in Tazewell County?

Median Air Quality Index (US EPA) in Tazewell County was 13 in 1999, according to the U.S. Environmental Protection Agency. That is down 3 from 1998. That is the 41st highest of 42 counties in 1999.

Where does this figure come from?

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

What was the highest median Air Quality Index (US EPA) in Tazewell County?

19 in 1995, the highest value since 1995 in this series.

Related statistics for Tazewell County

All statistics for Tazewell County | Tazewell County in figures