PMID: 15352478Sep 9, 2004Paper

Degradation of petroleum hydrocarbons in two sub-antarctic soils: influence of an oleophilic fertilizer

Environmental Toxicology and Chemistry
F CoulonD Delille

Abstract

In order to determine the long-term effects of fertilizer on the degradation rate and the toxicity of hydrocarbons in sub-Antarctic soils contaminated by petroleum hydrocarbons, a field study was initiated in December 2000 on two different soils of the Kerguelen Islands (69 degrees 42'E, 49 degrees 19'S). The number of hydrocarbon-degrading bacteria (HDB) increased greatly after crude-oil and diesel-fuel contamination, and the fertilizer addition had a favorable effect on HDB growth and activity. Hydrocarbon-degrading bacteria counts remained high until the end of the experiment although the total hydrocarbon content in all contaminated soils was reduced to 80 to 90% of their initial value after 330 d. Degradation of n-alkanes was enhanced significantly in the presence of the fertilizer, while the degradation of polycyclic aromatic hydrocarbons (PAHs) was only barely enhanced. Toxicity results showed a noticeable reduction with time, although toxicity remained present and important in both soils at the end of the experiment. In addition, fertilized plots showed a toxic signal greater than unfertilized ones. Overall results clearly show that fertilizer addition improves the rate of degradation of both oil contaminants. However, ...Continue Reading

Citations

Mar 4, 2006·Extremophiles : Life Under Extreme Conditions·Jackie AislabieJulia M Foght
Jun 11, 2014·International Journal of Phytoremediation·Andrew D CartmillAlejandro Alarcón
Aug 2, 2011·Journal of Environmental Management·María C Rosano-HernándezLuis Fernández-Linares
Jun 13, 2017·International Journal of Phytoremediation·Maryam BaratiSedigheh Safarzadeh
Nov 13, 2013·Journal of Environmental Quality·Andrew D CartmillAlejandro Alarcón
Mar 26, 2020·The Science of the Total Environment·J A Van LeeuwenS M Hassanizadeh

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