期刊
MARINE POLLUTION BULLETIN
卷 161, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2020.111718
关键词
Exxon; Valdez; Earthquake; Petroleum; Asphalt; Tar
资金
- National Academies Gulf Research Program [2000005809]
Spectroscopic techniques including X-ray fluorescence (XRF) and attenuated total reflectance - Fourier trans form infrared spectroscopy (ATR-FTIR) are used to examine oil residues persisting on shorelines in Prince William Sound that originate from the 1989 Exxon Valdez oil spill and oil released as a consequence of the 1964 Great Alaska earthquake. When coupled to classification models, ATR-FTIR and XRF spectral data can be used to distinguish between the two sources of oil with 92% and 86% success rates for the two techniques respectively. Models indicate that the ATR-FTIR data used to determine oil source includes the C=O stretch, the twisting-scissoring of the CH2 group, and the C=C stretch. For XRF data, decision tree models primarily utilize the abundance of nickel and zinc present in the oil as a means to classify source. This approach highlights the utility of rapid, field-based spectroscopic techniques to distinguish different inputs of oil to coastal environments.
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