risk de minimis

synonyms: de minimis risk, negligible risk
https://doi.org/10.1351/goldbook.16062
Risk that is negligible and too small to be of societal concern (usually assumed to be a probability below \(\pu{E-5}\) or \(\pu{E-6}\)).
Notes:
  1. This term can also mean "virtually safe".
  2. In the United States, this is a legal term used to mean "negligible risk to the individual".
Source:
PAC, 2007, 79, 1153. (Glossary of terms used in toxicology, 2nd edition (IUPAC Recommendations 2007)) on page 1303 [Terms] [Paper]