 |
|
|
|
Effects of ultraviolet radiation on the toxicity of water-accommodated fraction and chemically enhanced water-accommodated fraction of Hebei Spirit crude oil to the embryonic development of the Manila clam, Ruditapes philippinarum
|
|
| Chang-Hoon Lee, Chan-Gyoung Sung, Sin-Kil Kang, Seong-Dae Moon, Ji-Hye Lee and Jong-Hyeon Lee |
|
| Institute of Environmental Protection and Safety, NeoEnBiz Co., Bucheon 420-806, Republic of Korea
Department of Energy and Environmental System Engineering, University of Seoul, Seoul 130-743, Republic of Korea
Department of Biological Science, Chungna |
|
The purpose of this study is to evaluate the effects of oil dispersant and ultraviolet (UV) radiation on the toxicity of crude oil. The toxicity of water-accommodated fraction (WAF) and chemically enhanced water-accommodated fraction (CEWAF) of Hebei Spirit crude oil was investigated in the embryo of the Manila clam, Ruditapes philippinarum with- and without ultraviolet radiation. The WAF and CEWAF with- and without UV radiation affected significantly the embryonic development of R. philippinarum. The EC50s of WAF without UV, WAF with UV, CEWAF without UV, and CEWAF with UV were 2.82, 0.79, 1.60, and 0.45 g/L, respectively. CEWAF was 1.6 times more toxic than WAF. UV radiation increased crude oil toxicity to 3.6 times for both WAF and CEWAF. The oil dispersant and UV radiation did not affect the acute toxicity to the embryo but retarded the period of embryonic development up to 26%. R. philippinarum proved to be a sensitive species to reflect the toxic effects of oil spill combined with oil dispersant and UV radiation. It is suggested that the chemical analyses on the WAF and CEWAF is important for the identification and quantitative explanation of the phototoxic compounds in crude oil.
|
|
 v29_1_23-32.pdf (748.6K), Down : 108, 2013-04-22 13:43:35
| |
|
|
|
 |
|
사무국 & 편집국
: 충남 아산시 신창면 순천향로 22 자연과학대학 3317호
/ Tel: 041-530-3040 / E-mail : malacol@naver.com
|
 |
|
|
