Worldwide deposition of strontium-90 through 1990 | Zendy

M.A. Monetti | Zendy

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Worldwide deposition of strontium-90 through 1990

Author(s) -

M.A. Monetti

Publication year - 1996

Language(s) - English

Resource type - Reports

DOI - 10.2172/243453

Subject(s) - strontium , strontium 90 , deposition (geology) , radiochemistry , isotopes of strontium , environmental science , atmosphere (unit) , fission products , period (music) , environmental chemistry , mineralogy , chemistry , radionuclide , nuclear physics , geology , meteorology , physics , paleontology , sediment , acoustics

Strontium-90 results from the Environmental Measurements Laboratory`s (EML) Global Fallout Program (GFP) are presented for the years 1987 through 1990. Quarterly {sup 90}Sr deposition results for the 66 sampling locations of EML`s GFP were generally low, indicating that there was no significant release of fission products into the atmosphere during this period. The global {sup 90}Sr deposition during these 4 years was lower than it has been for any similar period since this program began in 1958. Since there was no major atmospheric source of {sup 90}Sr during this period, the global cumulative deposit of {sup 90}Sr continued to decrease by radioactive decay to a 27 year low of 311.4 Pbq

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