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

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

Highest daily Air Quality Index (US EPA) in Schuylkill County was 17 in 2007, according to the U.S. Environmental Protection Agency. That is up 2 from 2006.

2007, index17
Change on 2006+2
Series high381992
Series low102004

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 Schuylkill County, 1990 to 2007

102030401990199319961999200220071990: 19 index1991: 27 index1992: 38 index1993: 19 index1994: 20 index1995: 35 index1996: 27 index1997: 19 index1998: 17 index1999: 18 index2000: 17 index2001: 11 index2002: 15 index2003: 16 index2004: 10 index2005: 24 index2006: 15 index2007: 17 index1020304019901996200220071990: 19 index1991: 27 index1992: 38 index1993: 19 index1994: 20 index1995: 35 index1996: 27 index1997: 19 index1998: 17 index1999: 18 index2000: 17 index2001: 11 index2002: 15 index2003: 16 index2004: 10 index2005: 24 index2006: 15 index2007: 17 index
index. Source: EPA, EPA AirData annual AQI by county: highest daily AQI. Retrieved 2026-10-12, published 2026-07-13.
All 18 values
Periodindex
200717
200615
200524
200410
200316
200215
200111
200017
199918
199817
199719
199627
199535
199420
199319
199238
199127
199019

Schuylkill County compared with nearby places

Adams County: 143 indexAllegheny County: 185 indexArmstrong County: 187 indexBeaver County: 169 indexBerks County: 161 indexBlair County: 122 indexBucks County: 217 indexCambria County: 129 indexCentre County: 140 indexChester County: 212 indexClearfield County: 126 indexCumberland County: 121 indexDauphin County: 151 indexDelaware County: 202 indexElk County: 136 indexErie County: 182 indexFranklin County: 129 indexGreene County: 133 indexIndiana County: 140 indexLackawanna County: 136 indexLancaster County: 166 indexLawrence County: 119 indexLehigh County: 164 indexLuzerne County: 133 indexLycoming County: 143 indexMercer County: 156 indexMonroe County: 151 indexMontgomery County: 164 indexNorthampton County: 169 indexPerry County: 122 indexPhiladelphia County: 205 indexSchuylkill County: 17 indexSomerset County: 122 indexTioga County: 126 indexWashington County: 157 indexWestmoreland County: 156 indexYork County: 164 index
  • Under 130
  • 130 to 140
  • 140 to 150
  • 150 to 160
  • 160 to 180
  • 180 and over
  • No data
Highest daily Air Quality Index (US EPA), 2007, index. Schuylkill 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.

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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), Schuylkill County, 1990 to 2007) [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), Schuylkill County, 1990 to 2007. 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/schuylkill-county-pennsylvania. 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), Schuylkill County, 1990 to 2007. 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/schuylkill-county-pennsylvania.

Harvard

U.S. Environmental Protection Agency (2026) EPA AirData annual AQI by county: highest daily AQI, Highest daily Air Quality Index (US EPA), Schuylkill County, 1990 to 2007 [Dataset]. Available at: https://aqs.epa.gov/aqsweb/airdata/download_files.html#Annual, via Invokely: https://invokely.ai/en/highest-daily-air-quality-index/schuylkill-county-pennsylvania (Accessed: 12 October 2026).

BibTeX
@misc{environmental_highest_daily_air_quality_2007,
  author = {{U.S. Environmental Protection Agency}},
  title = {{EPA AirData annual AQI by county: highest daily AQI: Highest daily Air Quality Index (US EPA), Schuylkill County, 1990 to 2007}},
  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/schuylkill-county-pennsylvania. 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), Schuylkill County, 1990 to 2007
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/schuylkill-county-pennsylvania
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/highest-daily-air-quality-index/schuylkill-county-pennsylvania.
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 Schuylkill County?

Highest daily Air Quality Index (US EPA) in Schuylkill County was 17 in 2007, according to the U.S. Environmental Protection Agency. That is up 2 from 2006.

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 Schuylkill County?

38 in 1992, the highest value since 1990 in this series.

Related statistics for Schuylkill County

All statistics for Schuylkill County | Schuylkill County in figures