Lee, Chang-Hoon
(Institute of Environmental Protection and Safety, NeoEnBiz Co.)
,
Lee, Ji-Hye
(Institute of Environmental Protection and Safety, NeoEnBiz Co.)
,
Sung, Chan-Gyoung
(Institute of Environmental Protection and Safety, NeoEnBiz Co.)
,
Moon, Seong-Dae
(Institute of Environmental Protection and Safety, NeoEnBiz Co.)
,
Kang, Sin-Kil
(Institute of Environmental Protection and Safety, NeoEnBiz Co.)
,
Lee, Jong-Hyeon
(Institute of Environmental Protection and Safety, NeoEnBiz Co.)
,
Yim, Un Hyuk
(Oil & POPs Research Group, South Sea Research Institute, KIOST)
,
Shim, Won Joon
(Oil & POPs Research Group, South Sea Research Institute, KIOST)
,
Ha, Sung Yong
(Oil & POPs Research Group, South Sea Research Institute, KIOST)
The bioaccumulation of 16 United States Environmental Protection Agency (USEPA) priority polycyclic aromatic hydrocarbons (PAHs) and alkylated PAHs in the Manila clam, Ruditapes philippinarum exposed to sediments artificially contaminated by Iranian Heavy Crude Oil was measured and the biota-sedimen...
The bioaccumulation of 16 United States Environmental Protection Agency (USEPA) priority polycyclic aromatic hydrocarbons (PAHs) and alkylated PAHs in the Manila clam, Ruditapes philippinarum exposed to sediments artificially contaminated by Iranian Heavy Crude Oil was measured and the biota-sediment accumulation factor (BSAF) was estimated through laboratory experiments. The proportion of 16 PAHs accumulated in the tissue of R. philippinarum was only from 3 to 7% of total PAHs. Among 16 PAHs, the concentration of naphthalene was highest in the tissue. Alkylated PAHs were highly accumulated more than 93% of total PAHs. The C3 dibenzothiophene was most highly accumulated. The relative composition of alkylated naphthalenes in the tissue of R. philippinarum was lower than in the sediments. In contrast, those of alkylated compounds of fluorenes, phenanthrenes, dibenzothiophenes were higher in the tissue than the sediments. The BSAF for sum of 16 PAHs was 0.11 to 0.13 g carbon/g lipid and that for alkylated PAHs was 0.05 to 0.06 g carbon/g lipid. Naphthalene showed the highest BSAF value. Alkylated PAHs with the same parent compound, BSAF tended to increase with the number of alkylated branch increased, except for alkylated chrysenes. BSAF of total PAHs lies between that of field-based values, and are also similar to those of other persistent organic pollutants (PCBs, DDTs, HCHs). This study provides the BSAF values of individual alkylated PAHs accumulated in R. philippinarum for the first time and will be used as a basis for further understanding the bioaccumulation of organic contaminants in the marine benthic organisms.
The bioaccumulation of 16 United States Environmental Protection Agency (USEPA) priority polycyclic aromatic hydrocarbons (PAHs) and alkylated PAHs in the Manila clam, Ruditapes philippinarum exposed to sediments artificially contaminated by Iranian Heavy Crude Oil was measured and the biota-sediment accumulation factor (BSAF) was estimated through laboratory experiments. The proportion of 16 PAHs accumulated in the tissue of R. philippinarum was only from 3 to 7% of total PAHs. Among 16 PAHs, the concentration of naphthalene was highest in the tissue. Alkylated PAHs were highly accumulated more than 93% of total PAHs. The C3 dibenzothiophene was most highly accumulated. The relative composition of alkylated naphthalenes in the tissue of R. philippinarum was lower than in the sediments. In contrast, those of alkylated compounds of fluorenes, phenanthrenes, dibenzothiophenes were higher in the tissue than the sediments. The BSAF for sum of 16 PAHs was 0.11 to 0.13 g carbon/g lipid and that for alkylated PAHs was 0.05 to 0.06 g carbon/g lipid. Naphthalene showed the highest BSAF value. Alkylated PAHs with the same parent compound, BSAF tended to increase with the number of alkylated branch increased, except for alkylated chrysenes. BSAF of total PAHs lies between that of field-based values, and are also similar to those of other persistent organic pollutants (PCBs, DDTs, HCHs). This study provides the BSAF values of individual alkylated PAHs accumulated in R. philippinarum for the first time and will be used as a basis for further understanding the bioaccumulation of organic contaminants in the marine benthic organisms.
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문제 정의
This study provides for the first time the BSAF values of individual alkylated PAHs accumulated in R. philippinarum. However, our values are merely rough estimation of BSAF for some reasons.
philippinarum is not well-understood yet. To this ends, we set the purpose of this study to know the bioaccumulation pattern of PAHs originated from crude oil in the R. philippinarum. We exposed R.
제안 방법
3. Comparison of biota-sediment accumulation factors (BSAFs) of alkylated PAHs among different number of alkyl branches estimated from laboratory experiments with Ruditapes philippinarum exposed to crude oil contaminated sediments for 14 days (NAP: naphthalene, FLU: fluorene, PHE: phenanthrene, DIB: dibenzothiophene, CHR: chrysene). Vertical bar indicates the standard deviation of 3 different treatments (1.
대상 데이터
A 30 m × 0.25 mm I.D. DB-5MS capillary column was used in an Agilent Model 5890 GC with Agilent Model 5972 MSD.
Clean sediments were collected at a muddy tidal flat in Songak, Dangjin. After collection, sediments was passed through a 300-μm standard sieve to remove larger particles and other macrofauna.
Six individuals of R. philippinarum with shell height of 20.9 ± 1.35 mm (shell length of 29.2 ± 2.0 mm) were transferred into each beaker.
Injector temperature was set at 300℃ and transfer line at 280℃. Sixteen USEPA priority PAHs and alkylated PAHs were analyzed. The studied PAHs ranged from the diaromatics (naphthalene) to the hexaaromatics (benzo[ghi]perylene).
Sixteen USEPA priority PAHs and alkylated PAHs were analyzed. The studied PAHs ranged from the diaromatics (naphthalene) to the hexaaromatics (benzo[ghi]perylene). Alkylated PAHs include C1 to C4 naphthalene, C1 to C3 fluorene, C1 to C4 phenanthrene, C1 to C3 dibenzothiophene, and C1 to C3 chrysene.
성능/효과
3). BSAFs for C2 to C4 naphthalenes, C1 to C3 fluorenes, C1 to C3 phenanthrenes, and C1 to C3 dibenzothiophenes increased as the number of alkylation increased, whereas BSAFs for C1 to C3 chrysene decreased as the number of alkylation increased.
후속연구
If our values were estimated before steady state, it might also lead to underestimation of them. Therefore, additional researches to understand the effects of suspended particles on the accumulation of PAHs in clams and to reveal the time required to reach steady state of tissue concentrations of PAHs are needed.
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