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Time course study on the growth of Mycobacterium strains czh-101 (A) and czh-3 (B) during the degradation of PYR and PHE as sole substrates and as a binary PAH mixture. The initial PYR or PHE concentration was 100 ppm (200 ppm total PAH in mixture). The error bars are the standard deviations. Abiotic controls of PYR and PHE contained, respectively, 97% ± 2% and 83% ± 1% PAH remaining after 14 days of incubation.
