An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.
The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.
Nominated Substances: Arsenic, Arsenic trioxide
Nomination Date: 07/06/1993
Nominator: Private Individual
Rationale: Considered carcinogenic to humans; limited evidence in experimental animals.
NTP Principles: 6