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Molecular and stable carbon isotopic characterization of PAH contaminants at McMurdo Station, Antarctica |
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| Authors: | Kim Moonkoo Kennicutt Mahlon C Qian Yaorong |
| Institution: | aGeochemical and Environmental Research Group, Texas A&M University, 833 Graham Road, College Station, TX 77845, United States |
| Abstract: | The molecular and stable carbon isotopic compositions of contaminant polycyclic aromatic hydrocarbons (PAHs) at McMurdo Station, Antarctica were analyzed in samples collected from land and sub-tidal area. PAHs in the study areas were characterized by high amounts of naphthalene and alkylated naphthalenes from petroleum products introduced by human activities in the area. Principal component analysis (PCA) of PAH composition data identified multiple sources of PAH contamination in the study area. Compositional assignments of origins were confirmed using compound specific stable carbon isotopic analysis. |
| Keywords: | PAHs Compound specific isotope analysis Source identification Sediments Antarctica McMurdo Station |
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