mahi PReT ee ITES a
a[2 SRR ya ee be
Sr-90 (me/mi*)
sncdtactialte at aa tds EOE ee kh saab= elie lmbspaarites
haat
Phat
ee rE
tee
ree ee
ee
SNS
»
~ oO we
~
ieeAS
y
SAASSS ~;
=
ty
:
=
a
ss
Fig. 7
Cumulative Sr-90 from Rainfall? Collections at Pittsburgh.