Biomagnification profiles of tributyltin (TBT) and triphenyltin (TPT) in Japanese coastal food webs elucidated by stable nitrogen isotope ratios |
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| Institution: | 1. Department of Life Environment Conservation, Faculty of Agriculture, Ehime University, Tarumi, Matsuyama, Ehime 790-8566, Japan;2. Graduate School of Environmental Science / Faculty of Environmental Earth Science, Hokkaido University, N10W5, Kita-ku, Sapporo, Hokkaido 060-0810, Japan;3. Center for Marine Environmental Studies, Ehime University, Bunkyo-cho, Matsuyama Ehime 790-8577, Japan;1. Graduate School of Science and Technology, Niigata University, Niigata, Niigata 950-2181, Japan;2. Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan;3. Faculty of Science, Niigata University, Niigata, Niigata 950-2181, Japan;1. Okinawa Prefectural Fisheries Research and Extension Center, 1528 Kiyan, Itoman, Okinawa 901-0354, Japan;2. Motobu substation of Okinawa Prefectural Fisheries Research and Extension Center, 853-1 Ohama, Motobu, Okinawa 905-0212, Japan;3. Ishigaki Branch Station of Okinawa Prefectural Fisheries Research and Extension Center, 828-2 Kabira, Ishigaki, Okinawa 907-0453, Japan;1. Institute of Infectious Diseases, Faculty of Medicine, Technion, Israel Institute of Technology, Haifa 3109601, Israel;2. Division of Epidemiology and Preventive Medicine, Tel Aviv Sourasky Medical Centre, Tel Aviv, Israel;3. First Department of Medicine, Laiko General Hospital, National and Kapodistrian University of Athens, Athens, Greece;4. Department of Precision Medicine, University Campania L Vanvitelli and AORN dei Colli-Monaldi Hospital, Napoli, Italy;5. Centre for Anti-Infective Agents, Vienna, Austria;6. Department of Medical Microbiology and Infectious Diseases, Erasmus MC, Rotterdam, Netherlands;7. Department of Medicine E, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel;8. Sackler Faculty of Medicine, Tel-Aviv University, Ramat-Aviv, Israel;1. Man-Technology-Environment (MTM) Research Centre, School of Science and Technology, Örebro University, SE-701 82 Örebro, Sweden;2. Swedish Museum of Natural History, P.O. Box 50007, SE-104 05 Stockholm, Sweden;1. Red Sea Research Center (RSRC), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia;2. Australian Institute of Marine Science (AIMS), Townsville, Queensland, Australia |
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| Abstract: | The measurement of organotins in the various biotas of coastal food webs with stable nitrogen isotope ratios (δ15N), which increase 3.4‰ per trophic level, can provide a biomagnification profile of organotins through food web. In this study, various biological samples were collected from three localities in Western Japan between 2002 and 2003 for analyses. Tributyltin (TBT) and triphenyltin (TPT) were still detected with a maximum of 99.5 and 8.7 ng wet weight g?1, respectively. Unlike TBT, significant biomagnification of TPT through the food web (expressed by δ15N) was found in all three localities. The log transformed octanol–water partition coefficient (log Kow) of TPT of 2.11–3.43 was overlapped by, but was slightly lower than, that of TBT of 3.70–4.70. Thus, this study demonstrates that although these chemicals have a log Kow lower than 5, at least TPT undergoes significant biomagnification through the food web. |
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