4.160 r>g g 



r t t f 



f i t f f t t 



i i i i ■ i i 



CDEFGH1JKLMNOPORSTUVWKYZAA 



I f M 



J L 



480 ng g 



t 1 t i t t t I t t 



i — I I I l — l — l — r 



ABCDEFGHIJKLMNOPOflSTUVWXrZM 



J L 



ffftfi tff 



-M- 



T— f" 



— I 1 I I I 1 P 



ABCDEFGMijKl-MNOPQflSTUVWXYZA* 



I I I II II II 1 



FIGURE 3.21. (Top) Aromatic hydrocarbons, station 5, October 1978; nor- 

 malized to C 3 DBT. 



FIGURE 3.22. (Middle) Aromatic hydrocarbons, station 5, December 1978; 

 normalized to C3DBT. 



FIGURE 3.23. (Bottom) Aromatic hydrocarbons, station 5, March 1979; nor- 

 malized to C3DBT. 



(See Figure 3.14 for key.) 



57 



