Respiratory Hazard 1 : A particular concentration of an airborne contaminant that, when it enters the body by way of the respiratory system or by being breathed into the lungs, results in some bodily function impairment
Internet gateway for occupational health and safety resources and information, Basic Safety and Health Terms (An Article dedicated to the novice health and safety professional, Sep. 2000), CA, USA 2000, http://www.osh.net/articles/archive/osh_basics_200 0_sept30.htm, (Hlth and Sfty - Amer) {108}
United States Department of Labor, Occupational Safety & Health Administration (OSHA), Personal Protective Equipment Glossary (OSHA 29 CFR 1910.132), Washington, DC USA 2012. http://www.osha.gov/dte/grant_materials/fy07/sh-16 625-07/ppeglossary3.pdf, (OSHA/ Pers Prot Equip - Amer) {498}