Environmental stability of selected petroleum hydrocarbon source and weathering ratios

Article Abstract:

Ratios of alkylated dibenzothiophenes and phenanthrenes can be used to identify oil sources in soils, even after 98% depletion of total polycyclic aromatic hydrocarbons. Some ratios of alkylated naphthalenes, phenanthrenes and chrysenes are further found to provide the means to make qualitative assessments of the extent of weathering an oil has undergone since a spill. Such source and weathering ratios were successfully applied in sediment data from the M/C Haven spill in Italy, the Exxon Valdez spill in Alaska and an oil spill in the North Sea.

Industrial Organic Chemicals, Cyclic Crude and Intermediate Manufacturing, Aromatic Hydrocarbons, Research, Environmental aspects, Biodegradation, Polycyclic aromatic hydrocarbons, Oil spills, Chemical weathering

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Slow recover after Exxon Valdez oil spill

Article Abstract:

Scientists from the National Oceanic and Atmospheric Administration and Exxon Corp. disagree on the lingering effect of the Exxon Valdez oil spill ten years after the disaster. NOAA scientists point out that eight of the twenty four animal species affected still show no signs of recovery and that the remaining oil is still toxic. The Exxon scientists counter that there are only minute amounts of oil remaining on the beaches of Prince William sound and that other factors are involved in species recovery.

United States, PETROLEUM AND COAL PRODUCTS, Petroleum, Petroleum and Coal Products Manufacturing, Natural resources, Alaska, Reports, Petroleum industry, Exxon Valdez Oil Spill Disaster, 1989, XON, Exxon Mobil Corp., United States. National Oceanic and Atmospheric Administration, Prince William Sound

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