Route of Entry 5 : The method by which a contaminant can enter the body. There are four main routes of entry. Contaminants can be breathed in, swallowed, absorbed through the skin, or injected into the bloodstream
Industrial Accident Prevention Association (IAPA), Centre for Health & Safety Innovation, Glossary of Occupational Health & Safety Terms, Ontario, Canada 2007. http://www.iapa.ca/pdf/iapa_glossary.pdf, (Occupn Hlth and Sfty - Canad) {93}