Environment 17 : The aggregate, at any given time, of the physical, chemical and biological agents and social factors that can have a direct or indirect, immediate or late effect on living organisms and on human activities
By M. Debacker, B. Domres, Walter Hays, J. de Boer, Prehospital and Disaster Medicine, Disaster Terminology, Glossary of New Concepts in Disaster Medicine, USA 2002, http://www.eird.org/isdr-biblio/PDF/Prehospital%20 and%20disaster%20medicine.pdf, (D/DM - Amer) {831}