U.S. / county disease rankings

Counties with the highest air toxics cancer risk (U.S.)

Among 3,222 U.S. counties with published values, the counties with the highest air toxics cancer risk are Clackamas County, OR (80, 2.67 times the U.S. county median of 30), St. John the Baptist Parish, LA (80, 2.67 times the U.S. county median of 30) and Santa Cruz County, CA (70, 2.33 times the U.S. county median of 30). Values are in a million (EPA AirToxScreen).

Source: EPA AirToxScreen. These are county-level figures, compared with the U.S. county median. A high rate does not prove an environmental cause: age, smoking, income, access to care, screening and chance all move county rates, and small counties swing widely.