ADSORPTION CHARACTERISTICS OF PFCS AND PAHS ON MICROPLASTICS IN LAKE BIWA AND OSAKA BAY
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- NABETANI Yoshiki
- 京都大学大学院工学研究科
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- TANAKA Shuhei
- 京都大学大学院地球環境学堂
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- SUZUKI Yuji
- 京都大学大学院地球環境学堂
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- YUKIOKA Satoru
- 京都大学大学院地球環境学堂
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- FUJII Shigeo
- 京都大学大学院地球環境学堂
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- TAKADA Hideshige
- 東京農工大学 農学部 環境資源科学科
Bibliographic Information
- Other Title
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- 琵琶湖・大阪湾におけるマイクロプラスチックへのペルフルオロ化合物類および多環芳香族炭化水素類の吸着特性
- ビワコ ・ オオサカワン ニ オケル マイクロプラスチック エ ノ ペルフルオロ カゴウブツルイ オヨビ タカン ホウコウゾク タンカスイソルイ ノ キュウチャク トクセイ
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Description
Main objective of this study was to understand the adsorption characteristics of perfluorinated compounds (PFCs) and polycyclic aromatic hydrocarbons (PAHs) on microplastics in Lake Biwa and Osaka Bay. Microplastics (315 μm-5 mm) in surface water were collected and 15 types of PFCs, 16 types of PAHs and 4 types of harogenated PAHs were analyzed simultaneously. Target chemicals on microplastics were found at 49-218 ng/g-dry (Σ15 PFCs), 1,730-27,100 ng/g-dry (Σ16 PAHs) and 29-799 ng/g-dry (Σ4 harogenated PAHs), respectively. It was suggested that each compound was adsorbed on microplastics by hydrophobic effect, because target chemicals' contents ratio (chemical content on microplastics/that in dissolved phase of surface water) increased as their octanol/water partition coefficient (log Kow) increased. In addition, it was assumed that micoroplastics with smaller diameter tended to con-tain more PAHs.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)
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Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 73 (7), III_1-III_8, 2017
Japan Society of Civil Engineers