Polymerase chainreaction-denaturinggradientgel
electrophoresis (PCR-DGGE)revealedthateachsamplewasdominatedbyuniquemicrobialpopulations,
regardless ofsamplinglocation.TheconsortiaweredominatedbyknownPAHsdegradersincluding Sphingomonas,
Pseudomonas, and Sphingobium; andpreviouslyunknowndegraderssuchas Dokdonella and
Luteimonas.