Fig. 7. Growth balance of strain Bacillus sp. B-UM during a degradation test. Hatched and crosshatched bars represent bacterial growth from metabolizing phenanthrene (PHE) and each surfactant, respectively. CMC, critical micelle concentration; P. 9027, Pseudomonas aeruginosa ATCC 9027; P-CG3, Pseudomonas aeruginosa strain P-CG3.