Ecological Atlas : A series of maps that describe each aspect of an area's ecosystem. For example, one map in the series would describe the biology (plant and wildlife); another would describe the geology; and so forth
U.S. Environmental Protection Agency, Radiation Glossary, Office of Radiation and Indoor Air Radiation Protection Division, Washington, DC, USA 2013. http://www.epa.gov/radiation/glossary/index.html#a , (Dzstr/ Rad Emr - Amer) {823}