# henderson-webster-counties-ky · KENTUCKY · Webster County · Sulfur Dioxide (2010) — Current EPA nonattainment county designations by pollutant For henderson-webster-counties-ky · KENTUCKY · Webster County · Sulfur Dioxide (2010), pollutant / naaqs is Sulfur Dioxide (2010); nonattainment area name is Henderson-Webster Counties, KY; partial county is yes; county or area is Webster County; state is KENTUCKY; data current as of is August 31, 2026, recorded from its source on 2026-08-31. - **Row ID:** henderson-webster-counties-ky _(our reading, not quoted from the source)_ - **State:** KENTUCKY _(our reading, not quoted from the source)_ - **County or area:** Webster County _(verified: appears in the quote below)_ - **Pollutant / NAAQS:** Sulfur Dioxide (2010) _(verified: appears in the quote below)_ - **Partial county:** yes _(our reading, not quoted from the source)_ - **Nonattainment area name:** Henderson-Webster Counties, KY _(verified: appears in the quote below)_ - **Data current as of:** August 31, 2026 _(verified: appears in the quote below)_ ## What the source says > Webster County | Sulfur Dioxide (2010) | * | Henderson-Webster Counties, KY ## Source - https://www3.epa.gov/airquality/greenbook/ancl.html Last verified: 2026-08-31. Review by: 2027-02-27. Part of [Current EPA nonattainment county designations by pollutant](https://referencesource.org/nonattainment-county-designations-by-pollutant/).