TY - JOUR
T1 - Assessing fuel spill risks in polar waters
T2 - Temporal dynamics and behaviour of hydrocarbons from Antarctic diesel, marine gas oil and residual fuel oil
AU - Brown, Kathryn E.
AU - King, Catherine K.
AU - Kotzakoulakis, Konstantinos
AU - George, Simon C.
AU - Harrison, Peter L.
PY - 2016/9/15
Y1 - 2016/9/15
N2 - As part of risk assessment of fuel oil spills in Antarctic and subantarctic waters, this study describes partitioning of hydrocarbons from three fuels (Special Antarctic Blend diesel, SAB; marine gas oil, MGO; and intermediate grade fuel oil, IFO 180) into seawater at 0 and 5 °C and subsequent depletion over 7 days. Initial total hydrocarbon content (THC) of water accommodated fraction (WAF) in seawater was highest for SAB. Rates of THC loss and proportions in equivalent carbon number fractions differed between fuels and over time. THC was most persistent in IFO 180 WAFs and most rapidly depleted in MGO WAF, with depletion for SAB WAF strongly affected by temperature. Concentration and composition remained proportionate in dilution series over time. This study significantly enhances our understanding of fuel behaviour in Antarctic and subantarctic waters, enabling improved predictions for estimates of sensitivities of marine organisms to toxic contaminants from fuels in the region.
AB - As part of risk assessment of fuel oil spills in Antarctic and subantarctic waters, this study describes partitioning of hydrocarbons from three fuels (Special Antarctic Blend diesel, SAB; marine gas oil, MGO; and intermediate grade fuel oil, IFO 180) into seawater at 0 and 5 °C and subsequent depletion over 7 days. Initial total hydrocarbon content (THC) of water accommodated fraction (WAF) in seawater was highest for SAB. Rates of THC loss and proportions in equivalent carbon number fractions differed between fuels and over time. THC was most persistent in IFO 180 WAFs and most rapidly depleted in MGO WAF, with depletion for SAB WAF strongly affected by temperature. Concentration and composition remained proportionate in dilution series over time. This study significantly enhances our understanding of fuel behaviour in Antarctic and subantarctic waters, enabling improved predictions for estimates of sensitivities of marine organisms to toxic contaminants from fuels in the region.
KW - Fuel spills
KW - Water accommodated fraction
KW - Petroleum hydrocarbon
KW - Toxicity
KW - Antarctic pollution
UR - http://www.scopus.com/inward/record.url?scp=84990937842&partnerID=8YFLogxK
U2 - 10.1016/j.marpolbul.2016.06.042
DO - 10.1016/j.marpolbul.2016.06.042
M3 - Article
C2 - 27389459
AN - SCOPUS:84990937842
SN - 0025-326X
VL - 110
SP - 343
EP - 353
JO - Marine Pollution Bulletin
JF - Marine Pollution Bulletin
IS - 1
ER -