气候变化领域集成服务门户(CCPortal): Biogeochemical controls on biodegradation of buried oil along a coastal headland beach

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DOI	10.1016/j.marpolbul.2020.111051
	Biogeochemical controls on biodegradation of buried oil along a coastal headland beach
	Collins A.W.; Elango V.; Curtis D.; Rodrigue M.; Pardue J.H.
发表日期	2020
ISSN	0025326X
卷号	154
英文摘要	Laboratory experiments investigated oxygen dynamics in buried oiled sands sampled from areas impacted by the Macondo spill. Measured oxygen fluxes in oil deposits that were permeable to tidal water ranged from 10−3 to 10−4 μmol/cm2-sec, orders of magnitude higher than fluxes in non-permeable deposits (10−6 to 10−7 μmol/cm2-sec). Oxygen dynamics were well described by 1-d models that represent increased oxygen consumption in oiled sands. Experiments demonstrated that when oxygen is present and the oil deposit is permeable to tidal water, biodegradation of alkylated phenanthrenes and dibenzothiophenes proceeded over time scales (i.e., weeks) to have a significant impact on the mass and quality of buried oil. For this biodegradation process to proceed, two independent conditions must be met, a source of oxygenated water has to be present (e.g., tidal flushing in the intertidal zone) and the oiled deposit has to be permeable to water (i.e., pores cannot be completely saturated with oil). © 2020 Elsevier Ltd
英文关键词	Biodegradation; Gulf Coast; MC252 oil; Oxygen; PAHs; Weathering
语种	英语
scopus关键词	Deposits; Oxygen; Polycyclic aromatic hydrocarbons; Weathering; Biodegradation process; Biogeochemical controls; Dibenzothiophenes; Gulf coast; Laboratory experiments; MC252 oil; Orders of magnitude; Oxygen consumption; Biodegradation; acenaphthene; acenaphthylene; chrysene; chrysene derivative; dibenzothiophene derivative; fluoranthene; fluorene; fluorene derivative; naphthalene; naphthalene derivative; oil; oxygen; phenanthrene; phenanthrene derivative; pyrene; water; oil; petroleum; phenanthrene derivative; beach; biodegradation; biogeochemistry; marine pollution; oil pollution; oxygen; PAH; weathering; Article; biodegradation; biogeochemistry; controlled study; dynamics; mass; oil spill; oxygen consumption; permeability; seashore; stoichiometry; weathering; bioremediation; oil spill; water pollutant; Gulf Coast [United States]; United States; Biodegradation, Environmental; Oils; Petroleum; Petroleum Pollution; Phenanthrenes; Water Pollutants, Chemical
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/149044
作者单位	Department of Civil & Environmental Engineering, Louisiana State University, Baton Rouge, LA 70803, United States; Hazardous Substance Research Center, Louisiana State University, Baton Rouge, LA 70803, United States
推荐引用方式 GB/T 7714	Collins A.W.,Elango V.,Curtis D.,et al. Biogeochemical controls on biodegradation of buried oil along a coastal headland beach[J],2020,154.
APA	Collins A.W.,Elango V.,Curtis D.,Rodrigue M.,&Pardue J.H..(2020).Biogeochemical controls on biodegradation of buried oil along a coastal headland beach.Marine Pollution Bulletin,154.
MLA	Collins A.W.,et al."Biogeochemical controls on biodegradation of buried oil along a coastal headland beach".Marine Pollution Bulletin 154(2020).