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Acknowledgement to Reviewers of Geosciences in 2017
Open AccessFeature PaperArticle

Decomposition of Gasoline Hydrocarbons by Natural Microorganisms in Japanese Soils

1
College of Agriculture, Ibaraki University, 3-21-1, Chuuo, Ami, Inashiki, Ibaraki 300-0393, Japan
2
Geological Survey of Japan, AIST, 1-1-1, Higashi, Tsukuba, Ibaraki 305-8567, Japan
3
Graduate School of Environmental Studies, Tohoku University, 6-6-20, Aramaki, Aoba-ku, Sendai 980-8579, Japan
*
Author to whom correspondence should be addressed.
Geosciences 2018, 8(2), 35; https://doi.org/10.3390/geosciences8020035
Received: 4 December 2017 / Revised: 12 January 2018 / Accepted: 18 January 2018 / Published: 23 January 2018
(This article belongs to the Special Issue Soil Hydrology and Erosion)
Characterizing the mechanisms by which natural microorganisms in soil decompose gasoline hydrocarbons is of fundamental importance for a better understanding of natural attenuation and/or for predicting contaminant transport and fate in soils. To examine whether and how gasoline hydrocarbons can be decomposed under general environmental conditions, the decomposition of 10 major components generally contained in commercially available gasoline was analyzed in three arbitrarily selected Japanese soil samples. Gasoline hydrocarbons, especially aromatic hydrocarbons, are easily adsorbed by the tested Japanese soils, with straight chain hydrocarbons decomposing faster than branched hydrocarbons. Saturated monocyclic hydrocarbons were less easily decomposed than unsaturated monocyclic hydrocarbons. Enhancement of microbial decomposition of gasoline hydrocarbons requires a continuous supply of oxygen together with nutrients for the microorganisms. View Full-Text
Keywords: soil contamination; fate of gasoline hydrocarbons; microbial decomposition; batch experiment; natural attenuation soil contamination; fate of gasoline hydrocarbons; microbial decomposition; batch experiment; natural attenuation
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MDPI and ACS Style

Nishiwaki, J.; Kawabe, Y.; Komai, T.; Zhang, M. Decomposition of Gasoline Hydrocarbons by Natural Microorganisms in Japanese Soils. Geosciences 2018, 8, 35.

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