oo
AN
Basic Considerations £3 to Eceded Anounts of Haterlals Produced by Bozb
4,
Assurptiona:
1.
5SOZ of the tracer goes into ths stratosphere.
2.
S04 of that in the stratosphcre falls uniforaly on one-quarter
of the esrth!s surfas (in the sas general latitude as the
cotonstion).
3.
Toe mern storace tine in th stratospbero is acven years.
L. Each eampling period is of one nonth's eurstion, for a total
period of thres years for tho procral.
B.
To estimate th: ratio between the srmmt (activity or mass) in the
ctratosphore versus tha snout collected at the earth's curface
per month
1.
With Teen = 7 yeors,
1.2% is reacved fron the stratosphere per month
2.
with 1h x 1ols ft° = cne-caarter of the earth's surface,
-
6.012
Lx Tols
@ 6.56 x 20718 geoction af
eaterdel in stratcsyicre thet reaches one square fcot cf
ths esrtite curfece per month.
C.
To determine eroumt criginsily needed to be produced or placec
meer the boub:
1.
Assuwsineg a three year collection period, then
the snout oricinslly meeded in the stratosphere to have «
“~given anoumt renaining there after three years is
7
A.
whee ->t
hyn hoe -(0.012) (3)
hy = 0.65 £,
45° 1.54 hy