E. Hall / In laboratory / Robin D. Calfee U.S. Geological Survey Columbia Environmental Research Center / /
IndustryTerm
retardant chemicals / fire retardant chemical / chemical toxicity / fire chemical / chemical releases cyanide / ammonia-based chemicals / chemical persistence / fire-fighting chemicals / fire-retardant chemicals / long-term fire-retardant chemicals / chemical substance / ferricyanide solutions / percent solution / fire-retardant chemical products / fireretardant chemicals / chemicals / fire retardant chemicals / fire chemicals / /
NaturalFeature
Colorado River / /
Organization
American Society for Testing and Materials / U.S. Forest Service / U.S. Geological Survey Columbia Environmental Research Center / U.S. Department of the Interior U.S. Geological Survey Major Results / Bethesda Maryland / U.S. Environmental Protection Agency / Chemicals Aviation and Fire Management U.S. Forest Service Washington / Aviation Management US Forest Service / Interagency Fire Coordination Committee / American Fisheries Society / U.S. Fish and Wildlife Service / Robin D. Calfee U.S. Geological Survey Columbia Environmental Research Center Columbia / /
Person
Edward E. Little / Robin D. Calfee / Equipment / /
Before the 1950’s forest fires were largely fought with shovels and water, the advent of aircraft brought greater efficienc