Biodegradation of crude oil in Arctic subsurface water from the Disko Bay (Greenland) is limited

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Standard

Biodegradation of crude oil in Arctic subsurface water from the Disko Bay (Greenland) is limited. / Scheibye, Katrine; Christensen, Jan H.; Johnsen, Anders R.

I: Environmental Pollution, Bind 223, 2017, s. 73-80.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Scheibye, K, Christensen, JH & Johnsen, AR 2017, 'Biodegradation of crude oil in Arctic subsurface water from the Disko Bay (Greenland) is limited', Environmental Pollution, bind 223, s. 73-80. https://doi.org/10.1016/j.envpol.2016.12.032

APA

Scheibye, K., Christensen, J. H., & Johnsen, A. R. (2017). Biodegradation of crude oil in Arctic subsurface water from the Disko Bay (Greenland) is limited. Environmental Pollution, 223, 73-80. https://doi.org/10.1016/j.envpol.2016.12.032

Vancouver

Scheibye K, Christensen JH, Johnsen AR. Biodegradation of crude oil in Arctic subsurface water from the Disko Bay (Greenland) is limited. Environmental Pollution. 2017;223:73-80. https://doi.org/10.1016/j.envpol.2016.12.032

Author

Scheibye, Katrine ; Christensen, Jan H. ; Johnsen, Anders R. / Biodegradation of crude oil in Arctic subsurface water from the Disko Bay (Greenland) is limited. I: Environmental Pollution. 2017 ; Bind 223. s. 73-80.

Bibtex

@article{f9017663ed494c0a80f887f826a27656,

title = "Biodegradation of crude oil in Arctic subsurface water from the Disko Bay (Greenland) is limited",

abstract = "Biological degradation is the main process for oil degradation in a subsurface oil plume. There is, however, little information on the biodegradation potential of Arctic, marine subsurface environments. We therefore investigated oil biodegradation in microcosms at 2 °C containing Arctic subsurface seawater from the Disko Bay (Greenland) and crude oil at three concentrations of 2.5-10 mg/L. Within 71 days, the total petroleum hydrocarbon concentration decreased only by 18 ± 18% for an initial concentration of 5 mg/L. The saturated alkanes nC13-nC30 and the isoprenoids iC18-iC21 were biodegraded at all concentrations indicating a substantial potential for biodegradation of these compound classes. Polycyclic aromatic compounds (PACs) disappeared from the oil phase, but dissolution was the main process of removal. Analysis of diagnostic ratios indicated almost no PAC biodegradation except for the C1-naphthalenes. To conclude, the marine subsurface microorganisms from the Disko Bay had the potential for biodegradation of n-alkanes and isoprenoids while the metabolically complex and toxic PACs and their alkylated homologs remained almost unchanged.",

keywords = "Arctic Regions, Bays, Biodegradation, Environmental, Greenland, Naphthalenes, Petroleum, Seawater, Water Pollutants, Chemical, Journal Article",

author = "Katrine Scheibye and Christensen, {Jan H.} and Johnsen, {Anders R.}",

year = "2017",

doi = "10.1016/j.envpol.2016.12.032",

language = "English",

volume = "223",

pages = "73--80",

journal = "Environmental Pollution",

issn = "0269-7491",

publisher = "Pergamon Press",

}

RIS

TY - JOUR

T1 - Biodegradation of crude oil in Arctic subsurface water from the Disko Bay (Greenland) is limited

AU - Scheibye, Katrine

AU - Christensen, Jan H.

AU - Johnsen, Anders R.

PY - 2017

Y1 - 2017

N2 - Biological degradation is the main process for oil degradation in a subsurface oil plume. There is, however, little information on the biodegradation potential of Arctic, marine subsurface environments. We therefore investigated oil biodegradation in microcosms at 2 °C containing Arctic subsurface seawater from the Disko Bay (Greenland) and crude oil at three concentrations of 2.5-10 mg/L. Within 71 days, the total petroleum hydrocarbon concentration decreased only by 18 ± 18% for an initial concentration of 5 mg/L. The saturated alkanes nC13-nC30 and the isoprenoids iC18-iC21 were biodegraded at all concentrations indicating a substantial potential for biodegradation of these compound classes. Polycyclic aromatic compounds (PACs) disappeared from the oil phase, but dissolution was the main process of removal. Analysis of diagnostic ratios indicated almost no PAC biodegradation except for the C1-naphthalenes. To conclude, the marine subsurface microorganisms from the Disko Bay had the potential for biodegradation of n-alkanes and isoprenoids while the metabolically complex and toxic PACs and their alkylated homologs remained almost unchanged.

AB - Biological degradation is the main process for oil degradation in a subsurface oil plume. There is, however, little information on the biodegradation potential of Arctic, marine subsurface environments. We therefore investigated oil biodegradation in microcosms at 2 °C containing Arctic subsurface seawater from the Disko Bay (Greenland) and crude oil at three concentrations of 2.5-10 mg/L. Within 71 days, the total petroleum hydrocarbon concentration decreased only by 18 ± 18% for an initial concentration of 5 mg/L. The saturated alkanes nC13-nC30 and the isoprenoids iC18-iC21 were biodegraded at all concentrations indicating a substantial potential for biodegradation of these compound classes. Polycyclic aromatic compounds (PACs) disappeared from the oil phase, but dissolution was the main process of removal. Analysis of diagnostic ratios indicated almost no PAC biodegradation except for the C1-naphthalenes. To conclude, the marine subsurface microorganisms from the Disko Bay had the potential for biodegradation of n-alkanes and isoprenoids while the metabolically complex and toxic PACs and their alkylated homologs remained almost unchanged.

KW - Arctic Regions

KW - Bays

KW - Biodegradation, Environmental

KW - Greenland

KW - Naphthalenes

KW - Petroleum

KW - Seawater

KW - Water Pollutants, Chemical

KW - Journal Article

U2 - 10.1016/j.envpol.2016.12.032

DO - 10.1016/j.envpol.2016.12.032

M3 - Journal article

C2 - 28162802

VL - 223

SP - 73

EP - 80

JO - Environmental Pollution

JF - Environmental Pollution

SN - 0269-7491

ER -

ID: 180763145