020 



& S 



T- CM CO irt 



S § S 1 



•^ CM eo ift 



I 5 S 1 



Figure 6.4. Predicted (□) and observed( - )conc.ntrations of ar^e^c and sele^^^^^ 



right) Barbizon, Peck and Pryse evaporation ponds. The TDECF method .8 used. 



page 6.5 



