MEAN ANNUAL Pu-239 AND Pu-248 CONCENTRATIONS IN
BREATHABLE AIR DURING THE
. PERIOD 1966 - 1980

CONCENTRATIONS AT STATION

(pCi x m> x 197°)

YEAR

2-1

2-2

P

3-1

1966

1.13

1.21

0.4

6.74

1967

G41

11.94

6.1.

8.35

1968

5.19

9.59

9.07

8.09

1969

4.35

3.84

0.07

8.38

1978

9.16

5.86

1971

5.96

5.69

1972

8.28

8.05

1973

2.08

8.06

1974

9.22

9.11

1975

0.44

9.95

1976

g.12

8.05

1977

8.32

6.15

1978

9.45

9.6

1979

9.52

15

1980

9.89

9.76

:

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