Anthropogenic petroleum signatures and biodegradation in subantarctic Macquarie Island soils

A study on Macquarie Island reveals complex petroleum contamination patterns, with evidence of multiple spills and variable biodegradation rates. Soil samples from contaminated sites, including a fuel farm and powerhouse, showed higher concentrations and diversity of hydrocarbons, indicative of repeated SAB diesel spills. However, some locations exhibited signatures suggestive of heavier fuels or crude oil, hinting at diverse contamination sources. Reference sites, though less contaminated, also displayed signs of fuel oil presence. The findings highlight the environmental impact of anthropogenic petroleum in subantarctic soils and underscore the need for robust monitoring and remediation strategies.

Houlahan, S. B., Errington, I., Hose, G. C., King, C. K., & George, S. C. (2023). Anthropogenic petroleum signatures and biodegradation in subantarctic Macquarie Island soils. Chemosphere, 325, 138395. https://doi.org/10.1016/j.chemosphere.2023.138395