Table 99-8. Activity Concentration of Selected Radionuclides Measured by Gamma Spectroscopy
in Lake Carlsbad Surface Water Samples Collected during 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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|
Collection Date and Sampling Depth |
|
March 19, 1998 (0.3 m depth) |
March 19, 1998 (1.5 m depth) |
|
Nuclide |
aActivity Concentration
(Bq L-1) |
bSD
(Bq L-1) |
cMDC
(Bq L-1) |
Activity Concentration
(Bq L-1) |
SD
(Bq L-1) |
MDC
(Bq L-1) |
|
228Ac |
<MDC |
|
1.55E-01 |
<MDC |
|
1.11E-01 |
|
7Be |
<MDC |
|
3.40E-01 |
<MDC |
|
3.70E-01 |
|
212Bi |
<MDC |
|
2.38E-01 |
<MDC |
|
2.49E-01 |
|
213Bi |
NA |
NA |
NA |
NA |
NA |
NA |
|
214Bi |
<MDC |
|
1.01E-01 |
<MDC |
|
1.07E-01 |
|
144Ce |
NA |
NA |
NA |
NA |
NA |
NA |
|
249Cf |
NA |
NA |
NA |
NA |
NA |
NA |
|
60Co |
<MDC |
|
2.99E-02 |
<MDC |
|
3.34E-02 |
|
134Cs |
NA |
NA |
NA |
NA |
NA |
NA |
|
137Cs |
<MDC |
|
3.02E-02 |
<MDC |
|
3.39E-02 |
|
152Eu |
NA |
NA |
NA |
NA |
NA |
NA |
|
154Eu |
NA |
NA |
NA |
NA |
NA |
NA |
|
155Eu |
NA |
NA |
NA |
NA |
NA |
NA |
|
40K |
<MDC |
|
3.89E-01 |
<MDC |
|
4.15E-01 |
|
233Pa |
NA |
NA |
NA |
NA |
NA |
NA |
|
234mPa |
<MDC |
|
4.93E+00 |
<MDC |
|
5.32E+00 |
|
210Pb |
<MDC |
|
5.45E+00 |
<MDC |
|
7.45E+00 |
|
212Pb |
<MDC |
|
7.65E-02 |
<MDC |
|
7.00E-02 |
|
214Pb |
<MDC |
|
6.08E-02 |
<MDC |
|
6.63E-02 |
|
106Rh |
NA |
NA |
NA |
NA |
NA |
NA |
|
125Sb |
NA |
NA |
NA |
NA |
NA |
NA |
|
234Th |
<MDC |
|
4.76E-01 |
<MDC |
|
5.13E-01 |
|
208Tl |
<MDC |
|
4.85E-02 |
<MDC |
|
4.10E-02 |
|
235U |
<MDC |
|
2.08E-01 |
<MDC |
|
2.23E-01 |
|
Collection Date and Sampling Depth |
|
August 19, 1998 (0.5 m depth) |
August 19, 1998 (2.1 m depth) |
|
Nuclide |
aActivity Concentration
(Bq L-1) |
bSD
(Bq L-1) |
cMDC
(Bq L-1) |
Activity Concentration
(Bq L-1) |
SD
(Bq L-1) |
MDC
(Bq L-1) |
|
228Ac |
<MDC |
|
1.62E-01 |
<MDC |
|
1.45E-01 |
|
7Be |
<MDC |
|
3.71E-01 |
<MDC |
|
3.37E-01 |
|
212Bi |
<MDC |
|
5.69E-01 |
<MDC |
|
5.28E-01 |
|
213Bi |
<MDC |
|
1.29E-01 |
<MDC |
|
1.17E-01 |
|
214Bi |
<MDC |
|
1.21E-01 |
<MDC |
|
1.15E-01 |
|
144Ce |
<MDC |
|
2.58E-01 |
<MDC |
|
2.32E-01 |
|
249Cf |
<MDC |
|
5.17E-02 |
<MDC |
|
4.69E-02 |
|
60Co |
<MDC |
|
4.57E-02 |
<MDC |
|
3.99E-02 |
|
134Cs |
<MDC |
|
3.83E-02 |
<MDC |
|
3.47E-02 |
|
137Cs |
<MDC |
|
4.43E-02 |
<MDC |
|
4.04E-02 |
|
152Eu |
<MDC |
|
1.40E-01 |
<MDC |
|
1.27E-01 |
|
154Eu |
<MDC |
|
1.27E-01 |
<MDC |
|
1.17E-01 |
|
155Eu |
<MDC |
|
1.61E-01 |
<MDC |
|
1.44E-01 |
|
40K |
<MDC |
|
7.10E-01 |
<MDC |
|
6.76E-01 |
|
233Pa |
<MDC |
|
8.42E-02 |
<MDC |
|
7.64E-02 |
|
234mPa |
<MDC |
|
4.98E+00 |
<MDC |
|
4.65E+00 |
|
210Pb |
<MDC |
|
9.37E+00 |
<MDC |
|
6.61E+00 |
|
212Pb |
<MDC |
|
9.83E-02 |
<MDC |
|
8.87E-02 |
|
214Pb |
<MDC |
|
8.25E-02 |
<MDC |
|
7.49E-02 |
|
106Rh |
<MDC |
|
3.89E-01 |
<MDC |
|
3.67E-01 |
|
125Sb |
<MDC |
|
1.14E-01 |
<MDC |
|
1.07E-01 |
|
234Th |
<MDC |
|
7.09E-01 |
<MDC |
|
6.27E-01 |
|
208Tl |
<MDC |
|
5.71E-02 |
<MDC |
|
5.31E-02 |
|
235U |
<MDC |
|
1.60E-01 |
<MDC |
|
1.45E-01 |
aActivity concentrations of all radionuclides were measured using gamma spectroscopy
bSD=count standard deviation
cMDC = minimum detectable concentration
dNA = sample was not analyzed for target analyte
|
|
