r rtnrert y renranrrnrrr 



-t ■ <t'B 



MM 



■n- 



JX 



[B.rtlJ,kr T 



L rTh , 



— nJL? 



J 



iffl 



ram 



UtU 



n d 



_d 



POBTS*LL 

 NOVEMBER "->"* 



Q. 



«rt(" W«*CH 



NOvCWBER >'9 



JL 



HE '.H»NCJf 



NOVEMBER 19'9 



nn J 



NCCCCPCCCCDCCC NCCCCpCCCCOCCC nccccpccccdccc 



1234 1234 1J3 1JJ* 1 J 3 4 1 I J l J 3 « i 2 3 4 « 2 3 



N4PHTHA PHENAN DIBENiO NAPNtHA PhENAN OlBEN/O NAPHTHA PhENAN 0«BENJO 



1 t NE fMHENE fMiQPMENE iCHt TmRENE ImiOPmENC LENC 



MRENE THlOPHENE 



FIGURE 3. Changes in the relative concentrations of aromatic hydrocarbons 

 at sites 3, 5, and 7. 



20 



