TABLE 4. 11 *C0 2 + 1<t CHi l produced on 223 Day Incubation of Oiled Sediments 

 with ll+ C-Hydrocarbons (12/78). 



a Initial levels ranged from 0.22-2.2 x 10 DPM/vial 



14 

 b Indicates that CO. was apparently present but was not quantifiable because levels were near detection 



limits 



40 ooo r 



FIGURE 6. 



CO2 production from [ ring- 1 '*C] -toluene during dark anaerobic 

 incubation with sediments from the Aber Wrac'h 5-10 cm interval. 

 Radiolabel was added at the beginning of the incubation period 

 or 38 hours after incubation began (late addition) . Bars indi- 

 cate one standard deviation. 



174 



