OpenData by Socrata

This represents the EPA's 2002 national-scale assessment estimates across the United States plus Puerto Rico, the Virgin Islands, and the District of Columbia using 2002 national air toxics emission inventory as input to an air dispersion model (ASPEN model), and an inhalation exposure model (HAPEM5). Exposure modeling is an important step in this assessment because it takes into account that people move from one location to another, (e.g., from outside environments to inside environments). Originally from http://www.epa.gov/ttn/atw/nata2002/tables.html. All risks are per million residents.