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No.74 (2002/9) >

 
Title :Polychlorinated Biphenyls (PCBs) in a Sub-tropical Marine Environment : A Case Study in Seawaters Collected around Ryukyu Islands, Japan
Authors :Sheikh, Mohammed A
Oomori, Tamotsu
Odo, Yoshitaka
Authors alternative :大森, 保
Issue Date :Sep-2002
Abstract :Seawater samples collected around Ryukyu Islands during the Nagasaki Maru expedition in September 22 to October 2, 2001 were analyzed for total PCBs and some nutrients. The PCBs were detected in all stations (W-1 to W-4), in concentrations ranging between 0.053-0.28 ngL^<-1>. The concentration of PCBs increased from surface water down to 600 m, thereafter decreasing with depth to 1200 m at W-4. At W-1, PCBs increased from surface water down to 55 m. Chromatogram patterns varied among the sampling stations, implying the possibility of having different compositions of PCBs. The trend of the nutrients such as phosphates (PO_4-P) and silicates (SiO_2-Si) showed a general increase with depth.
Type Local :紀要論文
ISSN :0286-9640
Publisher :琉球大学理学部
URI :http://hdl.handle.net/20.500.12000/12167
Citation :琉球大学理学部紀要 = Bulletin of the College of Science. University of the Ryukyus no.74 p.65 -72
Appears in Collections:No.74 (2002/9)

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