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

Median Air Quality Index (US EPA) in Otoe County

Median Air Quality Index (US EPA) in Otoe County was 19 in 1998, according to the U.S. Environmental Protection Agency. That is down 3 from 1997.

1998, index19
Change on 1997-3
Series high341985
Series low181996

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 Otoe County, 1985 to 1998

152025303519851987198919911993199519981985: 34 index1986: 27 index1987: 31 index1988: 32 index1989: 27 index1990: 20 index1991: 25 index1992: 21 index1993: 21 index1994: 24 index1995: 22 index1996: 18 index1997: 22 index1998: 19 index15202530351985199019981985: 34 index1986: 27 index1987: 31 index1988: 32 index1989: 27 index1990: 20 index1991: 25 index1992: 21 index1993: 21 index1994: 24 index1995: 22 index1996: 18 index1997: 22 index1998: 19 index
index. Source: EPA, EPA AirData annual AQI by county: median daily AQI. Retrieved 2026-10-12, published 2026-07-13.
All 14 values
Periodindex
199819
199722
199618
199522
199424
199321
199221
199125
199020
198927
198832
198731
198627
198534

Otoe County compared with nearby places

Buffalo County: 14 indexCass County: 31 indexDawson County: 28 indexDouglas County: 35 indexLancaster County: 29 indexOtoe County: 19 indexScotts Bluff County: 20 index
  • Under 19
  • 19 to 23
  • 23 to 29
  • 29 to 31
  • 31 and over
  • No data
Median Air Quality Index (US EPA), 1998, index. Otoe 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), Otoe County, 1985 to 1998) [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), Otoe County, 1985 to 1998. 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/otoe-county-nebraska. 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), Otoe County, 1985 to 1998. 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/otoe-county-nebraska.

Harvard

U.S. Environmental Protection Agency (2026) EPA AirData annual AQI by county: median daily AQI, Median Air Quality Index (US EPA), Otoe County, 1985 to 1998 [Dataset]. Available at: https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual, via Invokely: https://invokely.ai/en/median-air-quality-index/otoe-county-nebraska (Accessed: 12 October 2026).

BibTeX
@misc{environmental_median_air_quality_index_1998,
  author = {{U.S. Environmental Protection Agency}},
  title = {{EPA AirData annual AQI by county: median daily AQI: Median Air Quality Index (US EPA), Otoe County, 1985 to 1998}},
  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/otoe-county-nebraska. 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), Otoe County, 1985 to 1998
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/otoe-county-nebraska
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/median-air-quality-index/otoe-county-nebraska.
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 Otoe County?

Median Air Quality Index (US EPA) in Otoe County was 19 in 1998, according to the U.S. Environmental Protection Agency. That is down 3 from 1997.

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 Otoe County?

34 in 1985, the highest value since 1985 in this series.

Related statistics for Otoe County

All statistics for Otoe County | Otoe County in figures