Analytical data from one of the four laboratories (Laboratory D) that analyzed
samples from the Northern Marshall Islands Radiological Survey did not, for the most
part, meet the quality contro! criteria established for the analysis of samples.
These
data, which represent about 18% of the total wet chemistry analyses performed by all
four laboratories and 55% of the work performed by Laboratory D, were not accepted by
90, 2394240
LLNL. Thus, there are some islands in the following tables where
Pu, or
24)
Am concentrations are unavailable. These missing data are identified by dashes. Data
for these three radionuclides are available, however, for the residence islands at each
atoll. The 80% of the wet chemistry data from all laboratories that did meet our quality
control criteria ‘is sufficient to give an evaluation of the 995, 23942405, and 24k A
concentrations at most islands and atall atolls.
The 137
Cs concentration data for all samples is complete.
This radionuclide
accounts for more than 90% of the estimated doses in the Marshall Islands.