Data / Highest daily Air Quality Index (US EPA) / Chesapeake city

Highest daily Air Quality Index (US EPA) in Chesapeake city

Highest daily Air Quality Index (US EPA) in Chesapeake city was 34 in 2004, according to the U.S. Environmental Protection Agency. That is down 120 from 2003.

2004, index34
Change on 2003-120
Series high1971981
Series low342004

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 Chesapeake city, 1980 to 2004

05010015020019801989199219951998200120041980: 185 index1981: 197 index1988: 55 index1989: 54 index1990: 49 index1991: 52 index1992: 50 index1993: 43 index1994: 46 index1995: 37 index1996: 44 index1997: 57 index1998: 51 index1999: 120 index2000: 108 index2001: 120 index2002: 135 index2003: 154 index2004: 34 index0501001502001980199320041980: 185 index1981: 197 index1988: 55 index1989: 54 index1990: 49 index1991: 52 index1992: 50 index1993: 43 index1994: 46 index1995: 37 index1996: 44 index1997: 57 index1998: 51 index1999: 120 index2000: 108 index2001: 120 index2002: 135 index2003: 154 index2004: 34 index
index. Source: EPA, EPA AirData annual AQI by county: highest daily AQI. Retrieved 2026-10-12, published 2026-07-13.
All 19 values
Periodindex
200434
2003154
2002135
2001120
2000108
1999120
199851
199757
199644
199537
199446
199343
199250
199152
199049
198954
198855
1981197
1980185

Chesapeake city compared with nearby places

Arlington County: 190 indexCaroline County: 151 indexCarroll County: 28 indexCharles City County: 164 indexChesterfield County: 126 indexCulpeper County: 42 indexFairfax County: 219 indexFauquier County: 164 indexFrederick County: 159 indexGiles County: 108 indexHanover County: 129 indexHenrico County: 119 indexKing William County: 20 indexLoudoun County: 202 indexMadison County: 154 indexPage County: 129 indexPrince Edward County: 136 indexPrince William County: 179 indexRoanoke County: 126 indexRockbridge County: 108 indexRockingham County: 47 indexStafford County: 182 indexWarren County: 41 indexWythe County: 133 indexAlexandria city: 204 indexBristol city: 106 indexCharlottesville city: 43 indexChesapeake city: 34 indexFredericksburg city: 44 indexHampton city: 150 indexLynchburg city: 97 indexNorfolk city: 93 indexRichmond city: 108 indexRoanoke city: 111 indexSalem city: 103 indexSuffolk city: 185 indexVirginia Beach city: 114 indexWinchester city: 44 index
  • Under 44
  • 44 to 110
  • 110 to 120
  • 120 to 150
  • 150 to 180
  • 180 and over
  • No data
Highest daily Air Quality Index (US EPA), 2004, index. Chesapeake city 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), Chesapeake city, 1980 to 2004) [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), Chesapeake city, 1980 to 2004. 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/chesapeake-city-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), Chesapeake city, 1980 to 2004. 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/chesapeake-city-virginia.

Harvard

U.S. Environmental Protection Agency (2026) EPA AirData annual AQI by county: highest daily AQI, Highest daily Air Quality Index (US EPA), Chesapeake city, 1980 to 2004 [Dataset]. Available at: https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual, via Invokely: https://invokely.ai/en/highest-daily-air-quality-index/chesapeake-city-virginia (Accessed: 12 October 2026).

BibTeX
@misc{environmental_highest_daily_air_quality_2004,
  author = {{U.S. Environmental Protection Agency}},
  title = {{EPA AirData annual AQI by county: highest daily AQI: Highest daily Air Quality Index (US EPA), Chesapeake city, 1980 to 2004}},
  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/chesapeake-city-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), Chesapeake city, 1980 to 2004
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/chesapeake-city-virginia
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/highest-daily-air-quality-index/chesapeake-city-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  -
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Questions

What is the highest daily Air Quality Index (US EPA) in Chesapeake city?

Highest daily Air Quality Index (US EPA) in Chesapeake city was 34 in 2004, according to the U.S. Environmental Protection Agency. That is down 120 from 2003.

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 Chesapeake city?

197 in 1981, the highest value since 1980 in this series.

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All statistics for Chesapeake city | Chesapeake city in figures