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

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

Highest daily Air Quality Index (US EPA) in Augusta County was 140 in 1994, according to the U.S. Environmental Protection Agency. That is down 16 from 1993.

1994, index140
Change on 1993-16
Series high2181988
Series low1261989

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

Get an email when a new figure is out or this one is revised.
Keep it in a collection in your library.

Highest daily Air Quality Index (US EPA) in Augusta County, 1985 to 1994

120140160180200220198519871989199119941985: 195 index1986: 150 index1987: 192 index1988: 218 index1989: 126 index1990: 151 index1991: 147 index1992: 166 index1993: 156 index1994: 140 index1251501752002251985198919941985: 195 index1986: 150 index1987: 192 index1988: 218 index1989: 126 index1990: 151 index1991: 147 index1992: 166 index1993: 156 index1994: 140 index
index. Source: EPA, EPA AirData annual AQI by county: highest daily AQI. Retrieved 2026-10-12, published 2026-07-13.
All 10 values
Periodindex
1994140
1993156
1992166
1991147
1990151
1989126
1988218
1987192
1986150
1985195

Augusta County compared with nearby places

Arlington County: 205 indexAugusta County: 140 indexCampbell County: 38 indexCaroline County: 151 indexCarroll County: 40 indexCharles City County: 156 indexChesterfield County: 161 indexCulpeper County: 41 indexFairfax County: 200 indexFauquier County: 182 indexFrederick County: 169 indexGiles County: 166 indexHanover County: 213 indexHenrico County: 200 indexHenry County: 151 indexIsle of Wight County: 41 indexKing William County: 41 indexLoudoun County: 48 indexMadison County: 161 indexNorthumberland County: 44 indexPrince Edward County: 161 indexPrince William County: 150 indexRoanoke County: 172 indexRockbridge County: 95 indexSmyth County: 44 indexStafford County: 161 indexWarren County: 151 indexWise County: 54 indexWythe County: 174 indexYork County: 38 indexAlexandria city: 177 indexBristol city: 46 indexCharlottesville city: 37 indexChesapeake city: 46 indexCovington city: 45 indexFredericksburg city: 38 indexHampton city: 179 indexLynchburg city: 47 indexMartinsville city: 54 indexNewport News city: 41 indexNorfolk city: 95 indexRichmond city: 80 indexRoanoke city: 73 indexSuffolk city: 202 indexWinchester city: 52 index
  • Under 41
  • 41 to 48
  • 48 to 95
  • 95 to 160
  • 160 to 180
  • 180 and over
  • No data
Highest daily Air Quality Index (US EPA), 1994, index. Augusta 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.

Report a problem with this figure

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), Augusta County, 1985 to 1994) [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), Augusta County, 1985 to 1994. 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/augusta-county-virginia. 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), Augusta County, 1985 to 1994. 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/augusta-county-virginia.

Harvard

U.S. Environmental Protection Agency (2026) EPA AirData annual AQI by county: highest daily AQI, Highest daily Air Quality Index (US EPA), Augusta County, 1985 to 1994 [Dataset]. Available at: https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual, via Invokely: https://invokely.ai/en/highest-daily-air-quality-index/augusta-county-virginia (Accessed: 12 October 2026).

BibTeX
@misc{environmental_highest_daily_air_quality_1994,
  author = {{U.S. Environmental Protection Agency}},
  title = {{EPA AirData annual AQI by county: highest daily AQI: Highest daily Air Quality Index (US EPA), Augusta County, 1985 to 1994}},
  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/augusta-county-virginia. 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), Augusta County, 1985 to 1994
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/augusta-county-virginia
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/highest-daily-air-quality-index/augusta-county-virginia.
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  -
Embed this chart

Paste this code into a web page or a blog post. The chart shows the latest figures as they are published, with the source and a link back to this page.

Sites that read oEmbed links, such as WordPress, can show the chart when you paste the link to this page.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

What is the latest highest daily Air Quality Index (US EPA) in Augusta County? Cite the source.
get_value {"indicator":"aqi_max","place":"us-county-51015"}
GET https://invokely.ai/api/v1/value?indicator=aqi_max&place=us-county-51015

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

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

Highest daily Air Quality Index (US EPA) in Augusta County was 140 in 1994, according to the U.S. Environmental Protection Agency. That is down 16 from 1993.

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 Augusta County?

218 in 1988, the highest value since 1985 in this series.

Related statistics for Augusta County

All statistics for Augusta County | Augusta County in figures