National Registry of Persons Exposed to Toxic or Hazardous Substances Files

The agency created this series to collect and maintain demographic and health information about persons who had been exposed to hazardous substances in the environment at Superfund sites or sources of Superfund relevance (such as a national emergency activity, or contaminated soil, food, or water not related to a dump site). The agency collected these data to help scientists study how long-term exposure to hazardous substances might have affected human health.

It also used the system to i nform registrants of the results of new research related to their exposure. This series contains information on persons exposed to or potentially exposed to hazardous toxic substances, specifically Trichloroethylene (TCE), Trichloroethane (TCA), Benzene, and Dioxin. The data consists of demographic information (date of birth, sex, race, employment, etc.), residential history including current address, and health information and tobacco use.