-29-
HW-s0991
TABLE VII
ANNUAL AVERAGE EMISSION RATES
OF SEVERAL RADIONUCLIDES FROM SEPARATIONS PLANT STACKS
curies/day
Radionuclide
pal
Zr-Nb??
1963
0.38
-
Rul93
Rul
ceit#l
cel44
Filterable
Gross Beta
-
1962
1961
0.35
0.7
0.0009
0.0036
0.0002
0.015
0.003
0.005
0.006
0.01
0.0024
0.013
0.005
-
-
TABLE IX
AVERAGE 1!3! concENTRATIONS IN ATMOSPHERE
Units of pe/m?
Distance from
Location
Benton City
Separation Stacks
miles
20
1963
1962
L9S1
1960
0.03
0.08
0.02
0.05
0.04
North Richiand*
20
-
0.10
0.04
Richland
23
0.02
0.04
0.02
0.023
Pasco
32
0.02
0.08
0.04
0.02
* The North Richland sampling location was discontinued in
October 1963. A new sampling location was installed at
the Prosser Barricade which lies in the same direction
from the separations areas but is about 6 miles closer.
The four locations listed in Table IX lie within a 45 degree sector
southeast to south of the Separations centers.
The annual average 331 concentrations in air during 1963 returned to
the levels observed in 1961 prior to resumption of nuclear testing by the USSR.
The long-term average release closely approximated the restrictive local