C CH HE EM MI IC CA AL L E EN NG GI IN NE EE ER RI IN NG G T TR RA AN NS SA AC CT TI IO ON NS S Study of Sphingopyxis Isolates in Degradation of Polycyclic Aromatic Hydrocarbons Phenenahtrene, anthracene and pyrene are polycyclic aromatic hydrocarbons (PAHs) which have been ...