DOE/ORO/2327 Oak Ridge Reservation Annual Site Environmental ...

Annual Site Environmental Report
Table 6.3. Average radionuclide concentrations at ORR perimeter
air monitoring stations, 2009
Parameter
No. detected/
no. total
Concentration (pCi/mL) a
Average Minimum Maximum
7
Be 4/4
Station 35
2.79E–08 1.73E–08 3.85E–08
40
K 0/4 1.85E–10 1.04E–11 4.56E–10
3
H 1/4 4.03E–06 6.78E–07 8.02E–06
234
U 4/4 1.30E–11 5.29E–12 2.24E–11
235
U 2/4 5.17E–13 –6.30E–14 9.06E–13
238
U 4/4 5.62E–12
Station 37
2.60E–12 7.96E–12
7
Be 4/4 2.90E–08 1.82E–08 3.54E–08
40
K 0/4 3.18E–10 –6.78E–11 5.37E–10
3
H 2/4 2.68E–05 –6.12E–07 9.26E–05
234
U 4/4 4.37E–12 3.64E–12 5.82E–12
235
U 1/4 3.54E–13 1.86E–13 6.31E–13
238
U 4/4 3.63E–12
Station 38
2.22E–12 5.31E–12
7
Be 4/4 2.94E–08 2.40E–08 4.32E–08
40
K 0/4 –8.39E–11 –3.00E–10 5.92E–11
3
H 0/4 2.07E–06 3.14E–08 4.38E–06
234
U 4/4 4.10E–12 3.20E–12 5.54E–12
235
U 1/4 2.42E–13 6.10E–14 4.02E–13
238
U 4/4 3.18E–12
Station 39
2.20E–12 5.00E–12
7
Be 4/4 2.65E–08 2.09E–08 3.78E–08
40
K 0/4 1.35E–10 5.01E–12 2.37E–10
3
H 1/4 1.03E–06 –3.99E–06 6.14E–06
234
U 4/4 2.61E–12 1.28E–12 3.76E–12
235
U 0/4 1.06E–13 0 2.19E–13
238
U 4/4 2.76E–12
Station 40
2.22E–12 3.48E–12
7
Be 4/4 2.71E–08 1.41E–08 5.01E–08
40
K 0/4 –1.34E–10 –3.34E–10 –9.65E–12
3
H 1/4 9.65E–06 –1.39E–08 2.84E–05
234
U 4/4 1.20E–11 6.40E–12 2.12E–11
235
U 2/4 3.55E–13 2.20E–13 5.21E–13
238
U 4/4 2.97E–12
Station 42
1.78E–12 4.44E–12
7
Be 4/4 2.85E–08 2.24E–08 3.31E–08
40
K 0/4 –1.39E–10 –5.00E–10 3.90E–10
3
H 1/4 3.83E–06 1.14E–06 6.73E–06
234
U 4/4 1.60E–11 6.08E–12 2.94E–11
235
U 2/4 5.11E–13 1.66E–13 8.16E–13
238
U 4/4 3.70E–12
Station 46
3.16E–12 4.61E–12
7
Be 4/4 2.85E–08 2.01E–08 4.65E–08
40
K 0/4 1.76E–10 –2.68E–10 4.71E–10
3
H 1/4 1.29E–05 4.94E–07 3.63E–05
234
U 4/4 7.38E–12 3.34E–12 1.33E–11
235
U 2/4 3.42E–13 1.28E–13 5.90E–13
238
U 4/4 2.87E–12 2.14E–12 4.43E–12
ORR Environmental Monitoring Program 6-7