AN ENCLOSED ECOSYSTEM (MESOCOSM) EXPERIMENT ON THE FATE OF CRUDE OIL IN THE WATER COLUMN

Title
AN ENCLOSED ECOSYSTEM (MESOCOSM) EXPERIMENT ON THE FATE OF CRUDE OIL IN THE WATER COLUMN
Author(s)
주창규; 안준건; 정승원; 심원준; 김문구
KIOST Author(s)
An, Joon Geon(안준건)Jung, Seung Won(정승원)Shim, Won Joon(심원준)Kim, Moon Koo(김문구)
Publication Year
2010-06-03
Abstract
Marine oil spills account for a significant input of petroleum hydrocarbons into the marine environment, causing extensive damage to organisms and natural resources. Understanding the fate of spilled oil in the water column is fundamental to predicting the environmental impact of oil, and thus to developing effective response/restoration strategies. We studied the environmental fate of a simulated oil spill and the water-soluble fraction of Iranian Heavy crude oil using experimental 980 liter in situ mesocosm bags that mimic natural ecosystems. The replicated experimental treatments consist of unoiled control (?3), oil only (?3), and pre-mixed oil+dispersant (?3). The mesocosm experiment was conducted for up to 116 days (Apr. 17 to Aug. 10, 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. A much faster increase of oil concentration (TPH, PAHs, and alkylated homologues) in the water column was observed in the dispersant-treated oiled mesocosm than in the untreated oiled one by eight days after oil addition. Oil concentrations in the water column remained relatively stable thereafter, and the TPH levels in the ‥oil+dispersant… mesocosms were about two orders of magnitude higher than those in the ‥oil only… mesocosm. Depuration rates of TPH were also six times higher in the ‥oil+dispersant… mesocosm compared to those in the ‥oil only… group. Quantitative and compositional changes of oil components during the simulated weathering of crude oil were also recognized and compared between ‥oil only… and ‥oil+dispersant… treatments.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/28877
Bibliographic Citation
6th International Conference on Marine Pollution and Ecotoxicology, pp.45, 2010
Publisher
City University of Hong Kong
Type
Conference
Language
English
Publisher
City University of Hong Kong
Related Researcher
Research Interests

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

Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse