|
KMID : 1024520100190040389
|
|
Journal of the Environmental Sciences
2010 Volume.19 No. 4 p.389 ~ p.397
|
|
|
Toxicity on Laboratory Grown Plankton by the Oils Released from the Hebei Spirit Spill with Emphasis on a Dispersant Used in the Aftermath
|
|
Choi Keun-Hyung
Lim Sang-Min
Lee Sung-Mi
Park Gyung-Soo
|
|
|
Abstract
|
|
|
|
The in vitro toxicities of three crude oils of the Hebei Spirit were examined on laboratory grown plankton, with a focus on the effects of a dispersant. The specific growth rate of phytoplankton and the mortalities of two zooplankton were measured in response to exposure to various concentrations of water accommodated oil, dispersant or both. The effects of the oils varied among the plankton, but were generally low within the range of the oil concentrations used, with little difference in toxicity among the three oils. Such low toxicity appeared to be associated with weathering of the crude oils. Exposure to the dispersant, however, dramatically increased the mortality of zooplankton, with complete inhibition of phytoplankton growth. No synergistic toxic effect was observed with the crude oil and dispersant combination. A better decision making process could be crafted for future application of dispersant in the event of an oil spill in Korean waters to better protect the marine plankton community from the excessive use of dispersant.
|
|
|
KEYWORD
|
|
|
Hebei Spirit, Oil spill, Plankton, Toxicity, Dispersant
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|