# san-juan-pr · PUERTO RICO · Bayamon Municipio · Sulfur Dioxide (2010) — Current EPA nonattainment county designations by pollutant For san-juan-pr · PUERTO RICO · Bayamon Municipio · Sulfur Dioxide (2010), pollutant / naaqs is Sulfur Dioxide (2010); nonattainment area name is San Juan, PR; partial county is yes; county or area is Bayamon Municipio; state is PUERTO RICO; data current as of is August 31, 2026, recorded from its source on 2026-08-31. - **Row ID:** san-juan-pr _(our reading, not quoted from the source)_ - **State:** PUERTO RICO _(our reading, not quoted from the source)_ - **County or area:** Bayamon Municipio _(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:** San Juan, PR _(verified: appears in the quote below)_ - **Data current as of:** August 31, 2026 _(verified: appears in the quote below)_ ## What the source says > Bayamon Municipio | Sulfur Dioxide (2010) | * | San Juan, PR ## 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/).