Aromatic hydrocarbons Bacteria Biodegradation Bioremediation Chemical waste Chlorophenols Concentration Creosote Ground water Hydrocarbons In situ Industrial waste Injection Microorganisms Organic compounds Pentachlorophenol Plantae Pollutants Pollution Polycyclic aromatic hydrocarbons Reclamation Remediation Soils Southern Mississippi Techniques Thallophytes Waste disposal sites Water pollution