A Mesocosm Study on the Fate of Iranian Heavy Crude Oil in Water Column

Title
A Mesocosm Study on the Fate of Iranian Heavy Crude Oil in Water Column
Author(s)
주창규; 김문구; 안준건; 정승원; 심원준
KIOST Author(s)
Kim, Moon Koo(김문구)An, Joon Geon(안준건)Jung, Seung Won(정승원)Shim, Won Joon(심원준)
Publication Year
2009-10-29
Abstract
We studied the environmental fate of the water-soluble fraction of Iranian Heavy crude oil using experimental 980 liters of in situ mesocosm bags (0.5 m in diameter and 5 m in depth) that mimic natural ecosystems. Mesocosm facilites composed of nine experimental bags (‘control’ x 3, ‘oil’ x 3, ‘oil+dispersant’ x 3). Mesocosm experiment was conducted from April 17 to July 2, 2009. The fate of artificially spilled crude oil in water column and the effect of dispersant application were monitored by measuring total petroleum hydrocarbons (TPH), polycyclic aromatic hydrocarbons (PAHs) and their compositional changes with time. Much faster increase of oil concentration in water column was observed in dispersant treated oiled mesocosm (313 ppb/day) than in non-treated oiled one (3.47 ppb/day) within eight days after oil addition. Oil concentrations in water column remained relatively stable thereafter and the TPH levels in ‘oil+dispersant’ mesocosms were about two orders of magnitude higher than those in ‘oil’ mesocosm. TPH levels are relatively high according to water depth in order of surface (0.5 m) > middle (2.5 m) > bottom (4.5 m) within several folds. The difference decreased according to time. Depuration rates of oil were also 6 times higher at ‘oil+dispersant’ mesocosm compared to ‘oil’ group.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/29242
Bibliographic Citation
2nd International Conference of Environmental Health Science, pp.230, 2009
Publisher
The Korean Society of Environmental Risk Assessment and Health Science
Type
Conference
Language
English
Publisher
The Korean Society of Environmental Risk Assessment and Health Science
Related Researcher
Research Interests

Microplastic pollution,Persistent Organic Pollutants,Oil Pollution,미세플라스틱 오염,잔류성 유기오염물질,유류오염

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