RELATIVE CONCENTRATION AT SOURCE 
tN 
(K=!1cm2;sec, V= APPROX. 5OGAL OR 190 LITERS) 
O.1hr thr !Ohrs 
ASYMPTOTE: 
Vv 
4(MKt)3/2 
4 56769! 
FIGURE 3 
DIFFUSIVE DECAY OF CONCENTRATION AT SOURCE 
SOURCE ON BOTTOM 
D=0 
22 
100 
