Persistence 10 : The quality of remaining for a long period of time (such as in the environment or the body). Persistent chemicals (such as DDT and PCBs) are not easily broken down
Center for Environmental Health Outreach and Education Group, Glossary of Environmental Health Terms, New York State Department of Health, NY, USA 2012. http: //www.health.ny.gov/environmental/glossary/, (Envir Hlth and Sfty - Amer) {694}
Ministry of Business, Innovation and Employment, Glossary of terms and acronyms, Wellington, New Zealand 2010. http://wwwsosh.govt.nz/resources/glossary-u.shtml, (Occupn Hlth and Sfty - Brit) {530}