STUDIES OF ENVIRONMENTAL PLUTONIUM AND OTHER TRANSURANICS IN DESERT ECOSYSTEMS NEVADA APPLIED ECOLOGY GROUP PROGRESS REPORT (WORKSHOP SESSION-MAY, 1975)

摘要

Comparison of particle size analysis of two soil samples (one under shrubbery and the other without vegetative cover) with and without ultrasonic dispersion showed that in both soils, the silt and clay contents increased with the treatment. The major change in plutonium distribution following the treatment was an increase in contribution by the medium silt size fraction and a decrease in the fine sand contribution. Although the field survey instrument (FIDLER) recorded a higher reading for the sample under shrubbery as compared with nonvegetated soil, the analysis showed that the nonvegetated soil had a higher plutonium content in the 0-5 cm depth.