C30BT:177ng g 



1 * ? » I — I — I I I I 1 I I 1 I — I » 1 I 1 T I I I I I I 



ABCDEFGHIJKLMNOPQRSTUVWirZAA 



J I IL 



C3DBT:75ng 8 



I I I i I — r— i — i — i i I f f I I I f 



ABCDEFGHIJKIMNOPORSTUVWKYZ 



4— r-f 



J L 



C30BT: ling g 



i i i — i — i— i — ii i i r t t r i — i i i r r f , f f i i — r 



ABCOEFGH IJ K LMNOPQRSTUVWXT 2W 

 I I I II II II 1 



FIGURE 3.30. (Top) Aromatic hydrocarbons, station 7, July 1979; normal- 

 ized to C3DBT. 



FIGURE 3.31. (Middle) Aromatic hydrocarbons, station 7, November 1979; 

 normalized to C3DBT. 



FIGURE 3.32. (Bottom) Aromatic hydrocarbons, station 7, March 1980; nor- 

 malized to C3DBT. 



(See Figure 3.14 for key.) 



60 



