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

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

Highest daily Air Quality Index (US EPA) in Wicomico County was 34 in 2001, according to the U.S. Environmental Protection Agency. That is down 3 from 2000.

2001, index34
Change on 2000-3
Series high2181986
Series low311999

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 Wicomico County, 1984 to 2001

0501001502002501984198719911994199720011984: 84 index1985: 212 index1986: 218 index1987: 105 index1988: 133 index1990: 69 index1991: 52 index1992: 42 index1993: 41 index1994: 39 index1995: 32 index1996: 37 index1997: 45 index1998: 42 index1999: 31 index2000: 37 index2001: 34 index0501001502002501984199120011984: 84 index1985: 212 index1986: 218 index1987: 105 index1988: 133 index1990: 69 index1991: 52 index1992: 42 index1993: 41 index1994: 39 index1995: 32 index1996: 37 index1997: 45 index1998: 42 index1999: 31 index2000: 37 index2001: 34 index
index. Source: EPA, EPA AirData annual AQI by county: highest daily AQI. Retrieved 2026-10-12, published 2026-07-13.
All 17 values
Periodindex
200134
200037
199931
199842
199745
199637
199532
199439
199341
199242
199152
199069
1988133
1987105
1986218
1985212
198484

Wicomico County compared with nearby places

Anne Arundel County: 206 indexBaltimore County: 218 indexCalvert County: 164 indexCarroll County: 200 indexCecil County: 212 indexCharles County: 179 indexDorchester County: 201 indexFrederick County: 197 indexHarford County: 225 indexKent County: 201 indexMontgomery County: 202 indexPrince George's County: 206 indexWashington County: 161 indexWicomico County: 34 indexBaltimore city: 172 index
  • Under 170
  • 170 to 200
  • 200 to 210
  • 210 and over
  • No data
Highest daily Air Quality Index (US EPA), 2001, index. Wicomico 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), Wicomico County, 1984 to 2001) [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), Wicomico County, 1984 to 2001. 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/wicomico-county-maryland. 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), Wicomico County, 1984 to 2001. 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/wicomico-county-maryland.

Harvard

U.S. Environmental Protection Agency (2026) EPA AirData annual AQI by county: highest daily AQI, Highest daily Air Quality Index (US EPA), Wicomico County, 1984 to 2001 [Dataset]. Available at: https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual, via Invokely: https://invokely.ai/en/highest-daily-air-quality-index/wicomico-county-maryland (Accessed: 12 October 2026).

BibTeX
@misc{environmental_highest_daily_air_quality_2001,
  author = {{U.S. Environmental Protection Agency}},
  title = {{EPA AirData annual AQI by county: highest daily AQI: Highest daily Air Quality Index (US EPA), Wicomico County, 1984 to 2001}},
  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/wicomico-county-maryland. 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), Wicomico County, 1984 to 2001
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/wicomico-county-maryland
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/highest-daily-air-quality-index/wicomico-county-maryland.
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 Wicomico County? Cite the source.
get_value {"indicator":"aqi_max","place":"us-county-24045"}
GET https://invokely.ai/api/v1/value?indicator=aqi_max&place=us-county-24045

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 Wicomico County?

Highest daily Air Quality Index (US EPA) in Wicomico County was 34 in 2001, according to the U.S. Environmental Protection Agency. That is down 3 from 2000.

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 Wicomico County?

218 in 1986, the highest value since 1984 in this series.

Related statistics for Wicomico County

All statistics for Wicomico County | Wicomico County in figures