Photooxidation and biodegradation potential of a light crude oil in first-year sea ice

被引：12

作者：

Desmond, Durell S. ^{[1
]}

Saltymakova, Diana ^{[1
]}

Smith, Alastair ^{[2
]}

Wolfe, Teresinha ^{[1
]}

Snyder, Nolan ^{[1
]}

Polcwiartek, Katarzyna ^{[1
]}

Bautista, Maria ^{[2
]}

Lemes, Marcos ^{[1
]}

Hubert, Casey R. J. ^{[2
]}

Barber, David G. ^{[1
]}

Isleifson, Dustin ^{[1
]}

Stern, Gary A. ^{[1
]}

机构：

[1] Univ Manitoba, Winnipeg, MB, Canada

[2] Univ Calgary, Calgary, AB, Canada

来源：

MARINE POLLUTION BULLETIN | 2021年 / 165卷

关键词：

Arctic sea ice; Crude oil weathering; Complex permittivity (dielectrics); Biodegradation; Photooxidation; PETROLEUM COMPOUNDS; COMMUNITIES; TEMPERATE; BACTERIA; FUEL;

D O I：

10.1016/j.marpolbul.2021.112154

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Disappearing sea ice in the Arctic region results in a pressing need to develop oil spill mitigation techniques suitable for ice-covered waters. The uncertainty around the nature of an oil spill in the Arctic arises from the icecovered waters and sub-zero temperatures, and how they may influence natural attenuation efficiency. The Sea-ice Environmental Research Facility was used to create a simulated Arctic marine setting. This paper focuses on the potential for biodegradation of the bulk crude oil content (encapsulated in the upper regions of the ice), to provide insight regarding the possible fate of crude oil in an Arctic marine setting. Cheaper and faster methods of chemical composition analysis were applied to the samples to assess for weathering and transformation effects. Results suggest that brine volume in ice may not be sufficient at low temperatures to encompass biodegradation and that seawater is more suitable for biodegradation.

引用

页数：13