Table 99-16. Activity Concentration of Selected Radionuclides Measured by Alpha Spectroscopy
in Brantley Lake Sediment Samples Collected during 1997-1998
See CEMRC 1999 Report
"Radiological and non-radiological constituents in surface water and sediments
at selected reservoirs" for descriptions of locations and methods of data collection.
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|
239,240Pu |
|
Collection Date |
Water Depth
(m) |
aActivity
Concentration
(mBq g-1) |
bSD
(mBq g-1) |
cMDC
(mBq g-1) |
|
3/19/97 |
12.8 |
3.26E-01 |
3.32E-02 |
9.27E-02 |
|
3/19/97 |
13.4 |
2.97E-01 |
3.34E-02 |
9.42E-02 |
|
3/20/97 |
11.9 |
1.67E-01 |
1.13E-02 |
2.96E-02 |
|
3/20/97 |
12.5 |
NA |
NA |
NA |
|
3/20/97 |
13.4 |
2.69E-01 |
1.63E-02 |
8.25E-02 |
|
1/30/98 |
12.2 |
2.59E-01 |
7.40E-02 |
1.74E-01 |
|
1/30/98 |
12.8 |
2.22E-01 |
4.44E-02 |
5.18E-02 |
|
2/4/98 |
11.6 |
2.59E-01 |
4.44E-02 |
8.51E-02 |
|
2/4/98 |
12.8 |
2.96E-01 |
5.55E-02 |
1.18E-01 |
|
10/7/98 |
11.0 |
2.46E-01 |
2.37E-02 |
2.52E-02 |
|
10/7/98 |
11.9 |
2.41E-01 |
2.11E-02 |
2.33E-02 |
|
10/8/98 |
13.4 |
2.15E-01 |
2.63E-02 |
4.07E-02 |
|
10/8/98 |
14.0 |
2.93E-01 |
2.74E-02 |
2.96E-02 |
|
238U |
235U |
234U |
|
Collection Date |
Water Depth
(m) |
Activity
Concentration
(mBq g-1) |
SD
(mBq g-1) |
MDC
(mBq g-1) |
Activity
Concentration
(mBq g-1) |
SD
(mBq g-1) |
MDC
(mBq g-1) |
Activity
Concentration
(mBq g-1) |
SD
(mBq g-1) |
MDC
(mBq g-1) |
|
3/19/97 |
12.8 |
7.49E+00 |
3.47E-01 |
3.40E-01 |
NA |
NA |
NA |
9.87E+00 |
4.34E-01 |
4.02E-01 |
|
3/19/97 |
13.4 |
3.54E+01 |
1.47E+00 |
1.82E-01 |
NA |
NA |
NA |
3.84E+01 |
1.58E+00 |
1.70E-01 |
|
3/20/97 |
11.9 |
8.21E+00 |
4.43E-01 |
3.56E-01 |
NA |
NA |
NA |
1.06E+01 |
4.19E-01 |
2.92E-01 |
|
3/20/97 |
12.5 |
2.97E+01 |
1.33E+00 |
1.19E-01 |
NA |
NA |
NA |
3.48E+01 |
1.54E+00 |
1.74E-01 |
|
3/20/97 |
13.4 |
2.38E+01 |
1.05E+00 |
3.65E-02 |
NA |
NA |
NA |
2.64E+01 |
1.16E+00 |
9.87E-02 |
|
1/30/98 |
12.2 |
4.30E+01 |
1.81E+00 |
3.70E-02 |
1.96E+00 |
1.55E-01 |
3.52E-02 |
6.52E+01 |
2.70E+00 |
4.81E-02 |
|
1/30/98 |
12.8 |
3.63E+01 |
1.52E+00 |
2.55E-02 |
1.62E+00 |
1.30E-01 |
2.55E-02 |
4.08E+01 |
1.70E+00 |
2.55E-02 |
|
2/4/98 |
11.6 |
3.53E+01 |
1.52E+00 |
2.96E-02 |
1.74E+00 |
1.48E-01 |
3.22E-02 |
5.18E+01 |
2.22E+00 |
2.89E-02 |
|
2/4/98 |
12.8 |
4.07E+01 |
1.70E+00 |
2.70E-02 |
2.53E+00 |
1.81E-01 |
3.22E-02 |
5.61E+01 |
2.33E+00 |
2.52E-02 |
|
10/7/98 |
11.0 |
4.11E+01 |
2.18E+00 |
4.07E-02 |
2.15E+00 |
1.55E-01 |
4.07E-02 |
6.37E+01 |
3.33E+00 |
4.44E-02 |
|
10/7/98 |
11.9 |
4.55E+01 |
2.44E+00 |
3.37E-02 |
2.18E+00 |
1.52E-01 |
3.40E-02 |
6.79E+01 |
3.63E+00 |
5.18E-02 |
|
10/8/98 |
13.4 |
4.26E+01 |
2.81E+00 |
2.15E-02 |
2.03E+00 |
2.44E-01 |
3.70E-02 |
6.22E+01 |
4.07E+00 |
4.44E-02 |
|
10/8/98 |
14.0 |
2.97E+01 |
1.59E+00 |
3.33E-02 |
1.71E+00 |
1.37E-01 |
4.44E-02 |
4.34E+01 |
2.33E+00 |
4.81E-02 |
|
|
232Th |
230Th |
228Th |
|
Collection Date |
Water Depth
(m) |
Activity
Concentration
(mBq g-1) |
SD
(mBq g-1) |
MDC
(mBq g-1) |
Activity Concentration
(mBq g-1) |
SD
(mBq g-1) |
MDC
(mBq g-1) |
Activity
Concentration
(mBq g-1) |
SD
(mBq g-1) |
MDC
(mBq g-1) |
|
3/19/97 |
12.8 |
2.11E+01 |
1.23E+00 |
3.08E-02 |
2.67E+01 |
1.54E+00 |
3.08E-02 |
2.25E+01 |
1.33E+00 |
3.08E-02 |
|
3/19/97 |
13.4 |
9.60E+01 |
1.10E+01 |
1.67E+00 |
4.29E+01 |
5.01E+00 |
1.44E+00 |
2.85E+01 |
3.58E+00 |
7.02E+00 |
|
3/20/97 |
11.9 |
1.19E+01 |
4.56E-01 |
2.08E-03 |
1.45E+01 |
5.47E-01 |
2.08E-03 |
1.11E+01 |
4.25E-01 |
2.08E-03 |
|
3/20/97 |
12.5 |
2.44E+01 |
1.33E+00 |
2.24E-02 |
3.28E+01 |
1.84E+00 |
2.24E-02 |
2.56E+01 |
1.43E+00 |
2.24E-02 |
|
3/20/97 |
13.4 |
7.46E+01 |
4.97E+00 |
9.19E-01 |
9.69E+01 |
6.39E+00 |
1.36E+00 |
8.21E+01 |
5.38E+00 |
1.38E+00 |
|
1/30/98 |
12.2 |
2.97E+01 |
1.96E+00 |
4.44E-01 |
3.60E+01 |
2.33E+00 |
2.11E+00 |
3.06E+01 |
2.07E+00 |
1.89E+00 |
|
1/30/98 |
12.8 |
5.01E+01 |
2.63E+00 |
4.81E-01 |
6.54E+01 |
3.29E+00 |
1.67E+00 |
4.50E+01 |
2.52E+00 |
1.96E+00 |
|
2/4/98 |
11.6 |
3.47E+01 |
2.33E+00 |
6.66E-01 |
3.27E+01 |
2.37E+00 |
2.00E+00 |
3.46E+01 |
2.44E+00 |
2.11E+00 |
|
2/4/98 |
12.8 |
3.54E+01 |
2.33E+00 |
2.59E-01 |
4.28E+01 |
2.74E+00 |
2.04E+00 |
3.88E+01 |
2.52E+00 |
1.70E+00 |
|
10/7/98 |
11.0 |
2.95E+01 |
1.52E+00 |
4.81E-01 |
3.23E+01 |
1.67E+00 |
1.55E+00 |
3.35E+01 |
1.74E+00 |
2.00E+00 |
|
10/7/98 |
11.9 |
3.15E+01 |
1.74E+00 |
5.18E-01 |
3.64E+01 |
2.00E+00 |
1.89E+00 |
3.49E+01 |
1.96E+00 |
1.92E+00 |
|
10/8/98 |
13.4 |
3.62E+01 |
1.78E+00 |
4.44E-01 |
3.44E+01 |
1.78E+00 |
1.59E+00 |
3.84E+01 |
1.92E+00 |
1.63E+00 |
|
10/8/98 |
14.0 |
3.96E+01 |
2.04E+00 |
4.81E-01 |
6.02E+01 |
2.85E+00 |
1.81E+00 |
4.31E+01 |
2.22E+00 |
1.78E+00 |
aActivity concentrations of all radionuclides were measured using alpha spectroscopy
bSD=count standard deviation
cMDC = minimum detectable concentration
dNA = sample was not analyzed for target analyte or analysis failed
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