Biodegradation, photooxidation and dissolution of petroleum compounds in an Arctic fjord during summer

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Biodegradation, photooxidation and dissolution of petroleum compounds in an Arctic fjord during summer. / Vergeynst, Leendert; Greer, Charles W.; Mosbech, Anders; Gustavson, Kim; Meire, Lorenz; Poulsen, Kristoffer G; Christensen, Jan H.

I: Environmental Science & Technology (Washington), Bind 53, Nr. 21, 05.11.2019, s. 12197-12206.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Harvard

Vergeynst, L, Greer, CW, Mosbech, A, Gustavson, K, Meire, L, Poulsen, KG & Christensen, JH 2019, 'Biodegradation, photooxidation and dissolution of petroleum compounds in an Arctic fjord during summer', Environmental Science & Technology (Washington), bind 53, nr. 21, s. 12197-12206. https://doi.org/10.1021/acs.est.9b03336

APA

Vergeynst, L., Greer, C. W., Mosbech, A., Gustavson, K., Meire, L., Poulsen, K. G., & Christensen, J. H. (2019). Biodegradation, photooxidation and dissolution of petroleum compounds in an Arctic fjord during summer. Environmental Science & Technology (Washington), 53(21), 12197-12206. https://doi.org/10.1021/acs.est.9b03336

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Vancouver

Author

Vergeynst, Leendert ; Greer, Charles W. ; Mosbech, Anders ; Gustavson, Kim ; Meire, Lorenz ; Poulsen, Kristoffer G ; Christensen, Jan H. / Biodegradation, photooxidation and dissolution of petroleum compounds in an Arctic fjord during summer. I: Environmental Science & Technology (Washington). 2019 ; Bind 53, Nr. 21. s. 12197-12206.

Bibtex

@article{31c37a196e3e4fe0bffadd5b047d2444,
title = "Biodegradation, photooxidation and dissolution of petroleum compounds in an Arctic fjord during summer",
abstract = "Increased economic activity in the Arctic may increase the risk of oil spills. Yet, little is known about the degradation of oil spills by solar radiation and the impact of nutrient limitation on oil biodegradation under Arctic conditions. We deployed adsorbents coated with thin oil films for up to 4 months in a fjord in SW Greenland to simulate and investigate in situ biodegradation and photooxidation of dispersed oil droplets. Oil compound depletion by dissolution, biodegradation and photooxidation was untangled by GC-MS-based oil fingerprinting. Biodegradation was limited by low nutrient concentrations, reaching 97{\%} removal of nC13-26-alkanes only after 112 days. Sequencing of bacterial DNA showed the slow development of a bacterial biofilm on the oil films predominated by the known oil degrading bacteria Oleispira, Alkanindiges and Cycloclasticus. These taxa could be related to biodegradation of shorter-chain (≤C26) alkanes, longer-chain (≥C16) and branched alkanes, and polycyclic aromatic compounds (PACs), respectively. The combination of biodegradation, dissolution and photooxidation depleted most PACs at substantially faster rates than the biodegradation of alkanes. In Arctic fjords during summer, nutrient limitation may severely delay oil biodegradation, but in the photic zone, photolytic transformation of PACs may play an important role.",
keywords = "Alkanes, Arctic Regions, Biodegradation, Environmental, Estuaries, Greenland, Petroleum, Petroleum Pollution, Seawater, Solubility, Water Pollutants, Chemical",
author = "Leendert Vergeynst and Greer, {Charles W.} and Anders Mosbech and Kim Gustavson and Lorenz Meire and Poulsen, {Kristoffer G} and Christensen, {Jan H.}",
year = "2019",
month = "11",
day = "5",
doi = "10.1021/acs.est.9b03336",
language = "English",
volume = "53",
pages = "12197--12206",
journal = "Environmental Science & Technology (Washington)",
issn = "0013-936X",
publisher = "AMER CHEMICAL SOC",
number = "21",

}

RIS

TY - JOUR

T1 - Biodegradation, photooxidation and dissolution of petroleum compounds in an Arctic fjord during summer

AU - Vergeynst, Leendert

AU - Greer, Charles W.

AU - Mosbech, Anders

AU - Gustavson, Kim

AU - Meire, Lorenz

AU - Poulsen, Kristoffer G

AU - Christensen, Jan H.

PY - 2019/11/5

Y1 - 2019/11/5

N2 - Increased economic activity in the Arctic may increase the risk of oil spills. Yet, little is known about the degradation of oil spills by solar radiation and the impact of nutrient limitation on oil biodegradation under Arctic conditions. We deployed adsorbents coated with thin oil films for up to 4 months in a fjord in SW Greenland to simulate and investigate in situ biodegradation and photooxidation of dispersed oil droplets. Oil compound depletion by dissolution, biodegradation and photooxidation was untangled by GC-MS-based oil fingerprinting. Biodegradation was limited by low nutrient concentrations, reaching 97% removal of nC13-26-alkanes only after 112 days. Sequencing of bacterial DNA showed the slow development of a bacterial biofilm on the oil films predominated by the known oil degrading bacteria Oleispira, Alkanindiges and Cycloclasticus. These taxa could be related to biodegradation of shorter-chain (≤C26) alkanes, longer-chain (≥C16) and branched alkanes, and polycyclic aromatic compounds (PACs), respectively. The combination of biodegradation, dissolution and photooxidation depleted most PACs at substantially faster rates than the biodegradation of alkanes. In Arctic fjords during summer, nutrient limitation may severely delay oil biodegradation, but in the photic zone, photolytic transformation of PACs may play an important role.

AB - Increased economic activity in the Arctic may increase the risk of oil spills. Yet, little is known about the degradation of oil spills by solar radiation and the impact of nutrient limitation on oil biodegradation under Arctic conditions. We deployed adsorbents coated with thin oil films for up to 4 months in a fjord in SW Greenland to simulate and investigate in situ biodegradation and photooxidation of dispersed oil droplets. Oil compound depletion by dissolution, biodegradation and photooxidation was untangled by GC-MS-based oil fingerprinting. Biodegradation was limited by low nutrient concentrations, reaching 97% removal of nC13-26-alkanes only after 112 days. Sequencing of bacterial DNA showed the slow development of a bacterial biofilm on the oil films predominated by the known oil degrading bacteria Oleispira, Alkanindiges and Cycloclasticus. These taxa could be related to biodegradation of shorter-chain (≤C26) alkanes, longer-chain (≥C16) and branched alkanes, and polycyclic aromatic compounds (PACs), respectively. The combination of biodegradation, dissolution and photooxidation depleted most PACs at substantially faster rates than the biodegradation of alkanes. In Arctic fjords during summer, nutrient limitation may severely delay oil biodegradation, but in the photic zone, photolytic transformation of PACs may play an important role.

KW - Alkanes

KW - Arctic Regions

KW - Biodegradation, Environmental

KW - Estuaries

KW - Greenland

KW - Petroleum

KW - Petroleum Pollution

KW - Seawater

KW - Solubility

KW - Water Pollutants, Chemical

U2 - 10.1021/acs.est.9b03336

DO - 10.1021/acs.est.9b03336

M3 - Journal article

C2 - 31566367

VL - 53

SP - 12197

EP - 12206

JO - Environmental Science & Technology (Washington)

JF - Environmental Science & Technology (Washington)

SN - 0013-936X

IS - 21

ER -