Assertion: tritium | /r/AtLocation | the environment
Facets:
value: naturally
type: MANNER
Source sentences:
text: Tritium exists naturally in the environment, but in very small quantities.
text: Tritium is also present in the environment as a result of atmospheric nuclear weapons testing in the 1950s and 1960s.
text: Tritium exists naturally in the environment, but in very small quantities.
text: It exists in the environment as both a naturally occurring and human-made substance and is usually present and undetectable in the human body as part of its watery composition.
text: Tritium exists naturally in the environment, but in very small quantities.