Enclosure (1) TO COMDTINST 16478.12
areas, (UL2) less than .3 percent. These percentages were at the low end of
the range reported in the literature. (Baudo, et. al., 1990)
Tampa Bay
The percent methyl mercury found in Tampa Bay samples ranges form 0.01 percent
to 0.57 percent, and concentrations ranged from 0.000006 mg/kg to 0.000749
mg/kg. The sample with the lowest percentage of total mercury as
methylmerucry was collected at the Alafia River Rear Range AtoN. A sample
with a similar low percentage of methyl mercury (0.012 percent) was collected
at the Gadsen Point Channel Day Beacon 10 (the UB AtoN). Samples with the
highest percentage of mercury as methyl mercury were collected at station ER1
and ER5. These samples had methyl mercury percentages of 0.571 and 0.434.
With the exception of the two samples collected at the E Cut Rear Range AtoN,
all of the samples had methyl mercury values below 0.3 percent. These
percentages are at the low end of the range reported in the literature.
3-12
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