Abstract:

Characterize the fate of hydrocarbons, associated heavy metals, and dispersants in oil-contaminated saline and freshwater marshes with emphasis on petroleum hydrocarbons based on both chemical and microbiological approaches. Specific objectives are: 1) Characterize the bioavailable fractions of hydrocarbons and associated heavy metals in marsh soils, 2) Determine environmental constraints governing microbial degradation of petroleum hydrocarbon and associated community functional response in wetland soils, and 3) Develop bioremediation strategies for enhancing the degradation of hydrocarbons. Both fresh and weathered crude oil samples were used in this project. The fresh crude oil sample (MC252) was obtained from BP whereas the weathered crude oil was obtained from the shore of a contaminated site on the Barrier Island.

Suggested Citation:

Wang, Jim. 2015. Bioavailable and leachable petroleum hydrocarbons of different Louisiana marsh soils. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N7M61H6B

Purpose:

Characterize the fate of hydrocarbons, associated heavy metals, and dispersants in oil-contaminated saline and freshwater marshes with emphasis on petroleum hydrocarbons based on both chemical and microbiological approaches.

Data Parameters and Units:

Bioavailable TPH Total Petroleum Hydrocarbons: [saline marsh soil, freshwater marsh soil], TPH (mg/kg). TPH Total Petroleum Hydrocarbons leachable from marsh soils: [saline, freshwater], [CaSO4 extraction 1, CaSO4 extraction 2, CaSO4 extraction 3, DCM dichloromethane extractable], TPH (mg/kg).

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