Data / Share of days with good air quality (US EPA AQI) / Linn County

Share of days with good air quality (US EPA AQI) in Linn County

Share of days with good air quality (US EPA AQI) in Linn County was 100% in 2014, according to EPA. That is up 19 pts from 2013.

2014100%
Change on 2013+19 pts
Series high1002014
Series low58.21999

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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Share of days with good air quality (US EPA AQI) in Linn County, 1998 to 2014

50607080901001998200120042007201020141998: 62.5 %1999: 58.2 %2000: 62 %2001: 59.9 %2002: 67.4 %2003: 59.5 %2004: 79.5 %2005: 63.5 %2006: 65.3 %2007: 71 %2008: 75.8 %2009: 81.3 %2010: 77.5 %2011: 69.3 %2012: 69.7 %2013: 81 %2014: 100 %4060801001998200420141998: 62.5 %1999: 58.2 %2000: 62 %2001: 59.9 %2002: 67.4 %2003: 59.5 %2004: 79.5 %2005: 63.5 %2006: 65.3 %2007: 71 %2008: 75.8 %2009: 81.3 %2010: 77.5 %2011: 69.3 %2012: 69.7 %2013: 81 %2014: 100 %
%. Source: Invokely calculation with data from EPA. Retrieved 2026-10-12, published 2026-07-13.
All 17 values
Period%
2014100
201381
201269.7
201169.3
201077.5
200981.3
200875.8
200771
200665.3
200563.5
200479.5
200359.5
200267.4
200159.9
200062
199958.2
199862.5

Linn County compared with nearby places

Chase County: 70 %Ford County: 99.2 %Johnson County: 85.2 %Leavenworth County: 91.2 %Linn County: 100 %Neosho County: 77.3 %Sedgwick County: 67.7 %Shawnee County: 80.3 %Sherman County: 100 %Sumner County: 80.2 %Trego County: 78.2 %Wyandotte County: 43.3 %
  • Under 71
  • 71 to 79
  • 79 to 83
  • 83 to 98
  • 98 and over
  • No data
Share of days with good air quality (US EPA AQI), 2014, %. Linn 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

Days with a daily Air Quality Index of 0 to 50 (good) as a percentage of the days of the year with an AQI in a US county. Calculated by Invokely from the day counts in the EPA AirData annual summaries; both counts are stored with each value.

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: good days as a share of days with an AQI, calculated with stored counts. 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: good days as a share of days with an AQI, calculated with stored counts (Share of days with good air quality (US EPA AQI), Linn County, 1998 to 2014) [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: good days as a share of days with an AQI, calculated with stored counts, Share of days with good air quality (US EPA AQI), Linn County, 1998 to 2014. U.S. Environmental Protection Agency, 13 July 2026, https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Invokely, https://invokely.ai/en/good-air-quality-days-share/linn-county-kansas. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Environmental Protection Agency. 2026. EPA AirData annual AQI by county: good days as a share of days with an AQI, calculated with stored counts. Share of days with good air quality (US EPA AQI), Linn County, 1998 to 2014. Dataset. Accessed October 12, 2026. https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Also distributed by Invokely, https://invokely.ai/en/good-air-quality-days-share/linn-county-kansas.

Harvard

U.S. Environmental Protection Agency (2026) EPA AirData annual AQI by county: good days as a share of days with an AQI, calculated with stored counts, Share of days with good air quality (US EPA AQI), Linn County, 1998 to 2014 [Dataset]. Available at: https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual, via Invokely: https://invokely.ai/en/good-air-quality-days-share/linn-county-kansas (Accessed: 12 October 2026).

BibTeX
@misc{environmental_share_of_days_with_2014,
  author = {{U.S. Environmental Protection Agency}},
  title = {{EPA AirData annual AQI by county: good days as a share of days with an AQI, calculated with stored counts: Share of days with good air quality (US EPA AQI), Linn County, 1998 to 2014}},
  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/good-air-quality-days-share/linn-county-kansas. Publisher attribution: U.S. Environmental Protection Agency, Air Quality System, AirData. EPA AirData annual AQI by county: good days as a share of days with an AQI, calculated with stored counts. 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: good days as a share of days with an AQI, calculated with stored counts: Share of days with good air quality (US EPA AQI), Linn County, 1998 to 2014
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/good-air-quality-days-share/linn-county-kansas
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/good-air-quality-days-share/linn-county-kansas.
N1  - Publisher attribution: U.S. Environmental Protection Agency, Air Quality System, AirData. EPA AirData annual AQI by county: good days as a share of days with an AQI, calculated with stored counts. https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual. Retrieved 2026-10-12.
ER  -
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Questions

What is the share of days with good air quality (US EPA AQI) in Linn County?

Share of days with good air quality (US EPA AQI) in Linn County was 100% in 2014, according to EPA. That is up 19 pts from 2013.

Where does this figure come from?

U.S. Environmental Protection Agency. EPA AirData annual AQI by county: good days as a share of days with an AQI, calculated with stored counts. Retrieved by Invokely on 2026-10-12.

What was the highest share of days with good air quality (US EPA AQI) in Linn County?

100% in 2014, the highest value since 1998 in this series.

Related statistics for Linn County

All statistics for Linn County | Linn County in figures