TOXMAP's health data has been updated to cover the years (2009-2013). National county-level cancer and disease mortality data from the Surveillance, Epidemiology, and End Results (SEER) program of the National Cancer Institute (NCI) can be displayed as layers on the map.
For more information on displaying these layers, refer to TOXMAP Help: US Census & Health Data.
Political boundaries for the U.S. 114th congressional districts reflect the official membership as of January 5, 2016. This map layer can be toggled on and off via the Map Contents side panel.