Set of inherent properties of a substance, mixture of substances, or a
process involving substances that, under production, usage, or
disposal conditions, make it capable of causing adverse effects
organisms or the environment, depending on the degree of exposure
in other words, it is a source of danger.
PAC, 2004, 76, 1033
(Glossary of terms used in toxicokinetics (IUPAC Recommendations 2003))
on page 1054
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook