EPA Air Quality Designations for the 2010 Sulfur Dioxide (SO2) Primary National Ambient Air Quality Standard—Round 3
On January 9, 2018, EPA published its final rule establishing the initial air quality designations for areas in the United States (U.S.) for the 2010 sulfur dioxide (SO2) primary National Ambient Air Quality Standard (NAAQS). EPA identified and designated as nonattainment tow areas in Puerto Rico, San Juan and Guayama-Salinas. The rest of the Island was designated as unclassifiable/attainment. EPA has published a table that compares its intended designations with the state recommended designations. https://www.epa.gov/sulfur-dioxide-designations/intended-sulfur-dioxide-area-designations-august-2017. Furthermore, its designations are published in the Federal Register / Vol. 83, No. 6, page 1098 (January 9, 2018).