1 - paducah environmental information center
1 - paducah environmental information center
1 - paducah environmental information center
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Annual Site Environmental Report for 1999<br />
99<br />
Table 5.6 Five-Year Tc Concentrations<br />
In Sediment<br />
99<br />
Tc (pCi/kg)<br />
1995 1996 1997 1998 1999<br />
Reference Locations<br />
Bayou Creek<br />
SS 20 516 100 334 810 ND<br />
little Bayou Creek<br />
SS 21 534 114 220 450 ND<br />
Massac Creek<br />
SS 28 624 174 332 210 ND<br />
Downstream Locations<br />
Bayou Creek<br />
SS 1 795 597 742 90730 ND<br />
little Bayou Creek<br />
SS 2 495 508 621 590 17850<br />
SS 27 560 4935 6042 3600 4005<br />
deer. Uranium-234 was found above detectable<br />
levels in two WKWMA deer. Uranium-235 was<br />
found above detectable levels in two WKWMA<br />
deer. Uranium-238 was found above detectable<br />
levels in one WKWMA deer. The concentrations<br />
of radionuclides detected were not significantly<br />
higher than background deer.<br />
Additional data is provided in Appendix C.<br />
Non-Routine Rabbit Sampling<br />
In deer bone, 237Np was found slightly<br />
above the detection leyel in one background<br />
deer. Strontium-90 was found above detection<br />
levels in two WKWMA deer. Thorium-230 was<br />
found above detection levels in three WKWMA<br />
deer and one background deer. Uranium-234<br />
was found above detection levels in four<br />
WKWMA deer. Uranium-235 was found above<br />
detection levels in one background deer.<br />
Uranium-238 was found above detection levels<br />
in two WKWMA deer. Although detectable<br />
levels of radionuclides were found none of the<br />
concentrations were significantly above<br />
background concentrations. In addition, the<br />
bone of deer are not consumed by humans and<br />
are not normally considered a source of human<br />
dose.<br />
In the deer liver, 237Np was found above the<br />
detection level in one WKWMAdeer. Thorium-<br />
230 was found above detection levels· i~· two<br />
WiKWMA deer. Although detectable, no<br />
significant concentrations of radionuclides were<br />
found.<br />
Table 5.7 Summary.of Radionuclldes<br />
Detected in Deer Samples In 1999<br />
Deer Sample<br />
#I Type<br />
1<br />
1<br />
I<br />
1 Dup<br />
1 Dup<br />
3<br />
2<br />
3<br />
3<br />
4<br />
5<br />
6<br />
6<br />
7<br />
7<br />
7<br />
7<br />
8<br />
8<br />
8<br />
Radionuclide<br />
WKWMADeer<br />
Bone Thorium - 230 .<br />
Bone Uranium - 234<br />
Liver Neptunium - 237<br />
Muscle Thorium - 230<br />
Muscle Uranium - 234<br />
Bone Thorium - 230<br />
Bone Uranium - 238<br />
Liver Thorium - 230<br />
Muscle Uranium - 235<br />
Muscle Uranium - 238<br />
Bone Uranium - 234<br />
Bone Uranium - 234<br />
Bone Uranium - 238<br />
Bone Strontium -90<br />
Liver Thorium - 230<br />
Muscle Thorium - 230<br />
Muscle Uranium - 234<br />
Bone Strontium -90<br />
Bone Thorium - 230<br />
Bone Uranium - 234<br />
Results<br />
(pCilg)<br />
0.29<br />
0.047<br />
0.009<br />
0.005<br />
0.012<br />
0.015<br />
0.008<br />
0.012<br />
0.006<br />
0.006<br />
0.022<br />
0.029<br />
0.012<br />
. 3.4<br />
0.017<br />
0.005<br />
0.02<br />
3.2<br />
0.03<br />
0.029<br />
In the deer muscle, which is normally<br />
considered to be edible to humans,· 231l'fh was<br />
found above detectable levels in two WKWMA<br />
9<br />
10<br />
Background Deer<br />
Bone Neptunium - 237<br />
Bone Thorium - 230<br />
Bone Uranium - 235<br />
0.013<br />
0.03<br />
0.018<br />
Radiological Environmental Surveillance<br />
5-7
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