Contaminant 07 : A hazardous material that physically remains on or in people, animals, the environment, or equipment, thereby creating a continuing risk of direct injury or a risk of exposure
NFPA 472 Standard for Competence of Responders to Hazardous Materials/ Weapons of Mass Destruction Incidents, 2008 ed. http://www.dps.state.ak.us/afsc/docs/Certification /HazMatAwarenessSkillSheets.pdf, (Std: Competence of Resp to Haz Mtrl/ Weapons of Mass Destruction Incid - Amer) {318 NFC}