""'Dechloromonas aromatica " "'is a gram negative, facultative anaerobe bacterium from the genus of " Dechloromonas " which was isolated of the Potomac River sludge in the mid-Atlantic coast of the United States and occurs in environment soil . " Dechloromonas aromatica " has the ability to degrade benzene anaerobically, reduce perchlorate and oxidize chlorobenzoate, toluene and xylene.