silo 3 - U.S. Department of Energy

* nACOBS
E N 0 I N E E R I N G@
DosdConcentration Calculation at Site Air Monitorins Stations
Calculation
Project: 35H 1 9605
Calculation Number: 40430-CA-0003
PageNod o f 3
The particulate dose rate and radon isotope concentrations due to Silo 3 emissions are also calculated at
the location of 16 site air monitoring stations. The location of the monitoring stations and the respective
doses and concentrations are identified in Table 4. It should be noted that the calculated radon
concentrations are well below those that can be measured by practical techniques. The =Rn
concentrations during Phase 1 are the same as those during Phase 2. The 218Rn and "'Fin
concentrations during Phase 1 will be slightly less than the concentration during Phase 2.
Table 4. Silo 3 Stack Emission Dose-Rate at Monitoring Stations
- .Radon Isotope Concentration @CVL)
Monitoring Distance Particulate Dose (mrem/yr) Phase 2
Station Direction (m) Phase 1 Phase 2 218Rn 220Rn =Rn
AMS 28
AMS 7
AMS 27
AMS 6
AMS 26
AMS 5
AMS 25
AMS 4
AMs 24
AMS 29
AMS 3
AMS 9C
AMS 8A
AMS 22
AMs 23
AMs 2
N 993.6 2.6 x lo6 1.8 x 10"
NNW
NW
WSW
ssw
929.6 1.7 x lo*
527.3 9.4 x lo4
332.2 3.6 x lo*
582.1 2.0~ lo*
1.1 x lo"
6.3 x 10'~
2.7 x 10'
1.2x 10"
S 990.6 2.1 x 10" 1.4~10"
SSE 1389.8 2.5X lo* 1.4 X 10".
SE 1319.7 2.6Xlo" 1.8.X 10"
SE
ESE
1240.5 2.7 X lo*
1469.1 3.3 X lO*
1.8 X 10"
2.1 x lo"
E
E
ENE
NE
1453.8 4.0 X los
1456.9 4.0 x lo8
1505.6 4.0~ lo*
332 '
2.7 X 10"
2.7 x 10'
2.1 x lo"
NE 994* 6.4~ lo* 4.1 x lod
NE 1063.7 6.3~ lo4 4.2 x 10"
NE 1356.3 5.6~10~ 3.8 x 10"
NE 1496.5 5.4~ lo4 3.6 x 10"
9.9 x 1.7 x lo4 6.2 x 10"
3.8x1tf5
1.8 x 10"'
1.1 x104
1 .O x
3.8~10'
2.0 x 10"
2.6~10'
1.1 x lo-''
1.7~1019
5.6 x lo*
8.0~10'
5.6 x 10"
7.3 x loi6
7.1 X 1U2'
1.0 x la4
5.7 X lo8
5.0 x 10'
4.9 x 10"
6.9 X 10"' 8.3 X 10" 6.1 x 10"
7.2XlU" l.0XlU5 6.3~10~
1.2 X lo'" 8.3 X lo* 7.5 x 10"
2.5 X 10'" 1.0 x lo* 9.6 x 10"
2.3 x lo2' 1.0 x 10" 9.6 x 10"
5.8~10'~ 9.6~10~ 1.1 xlU3
3.7 x 10" 2.8 x 10"
1.5 x lo4
3.2 x 1O-l' 3.7 x 10" 1.5 X lo3
5.7~10'~ 1.7~10" 1.4~10'~
8.8 x lop 1.3 x lo6 1.3 x lo-'
1.The concentrations at 332 m northeast is the calculated location for maximum ewoaure/dose for
2'sRn and POAn. No monitoring station is located at this point.
2.The doses and concentrations at 994 m northeast is the calculated location for medmum
exposure/dose for paniculates and =Fin. No monitoring station is located at this point.
%me 2?h concentration (pCi) at any station can be determined by multiplying the dose (mrenJvr)
by 3.8 x lo4. The concentration of all single radionuclides is provided in the computer output files.
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5069
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000226