title: Species- and tissue-specific bioaccumulation of arsenicals in various aquatic organisms from a highly industrialized area in the Pohang City, Korea.
abstract: Contamination of water and sediment with arsenic (As) in a highly industrialized area of Pohang City, Korea was investigated, with emphasis on in situ bioaccumulation of arsenicals by various aquatic organisms. Species- and tissue-specific concentrations of arsenicals were determined by use of HPLC-ICP/MS and μ-X-ray absorption near-edge structure (μ-XANES). Concentrations of arsenic in aquatic organisms were strongly associated with corresponding water concentrations, which indicates point sources associated with land use and activities. Arsenobetaine was the most dominant form of arsenic found in fishes, bivalves, crabs, and shrimps, while As(III) was predominant in freshwater snails. The μ-XANES analysis provided additional information about the unidentified arsenicals such as As-thiol. Arsenicals were mainly localized in intestine of mullet and marsh clam. Distribution and bioaccumulation of arsenic were strongly correlated with salinity, which indicates that natural processes controlling biogeochemistry of arsenic would be important in estuarine lotic system.
authors.affiliation: School of Earth and Environmental Sciences & Research Institute of Oceanography, Seoul National University, Seoul, Republic of Korea.
authors.forename: Seongjin
authors.initials: S
authors.lastname: Hong
authors.affiliation: School of Earth and Environmental Sciences & Research Institute of Oceanography, Seoul National University, Seoul, Republic of Korea. Electronic address: jskocean@snu.ac.kr.
authors.forename: Jong Seong
authors.initials: JS
authors.lastname: Khim
authors.affiliation: School of Earth and Environmental Sciences & Research Institute of Oceanography, Seoul National University, Seoul, Republic of Korea.
authors.forename: Jinsoon
authors.initials: J
authors.lastname: Park
authors.affiliation: Environmental Analysis Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea.
authors.forename: Hee-Sik
authors.initials: HS
authors.lastname: Son
authors.affiliation: Environmental Analysis Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea; School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea.
authors.forename: Sung-Deuk
authors.initials: SD
authors.lastname: Choi
authors.affiliation: School of Public Health, Seoul National University, Seoul, Republic of Korea.
authors.forename: Kyungho
authors.initials: K
authors.lastname: Choi
authors.affiliation: Department of Marine Biotechnology, Anyang University, Ganghwa, Incheon, Republic of Korea.
authors.forename: Jongseong
authors.initials: J
authors.lastname: Ryu
authors.affiliation: Canadian Light Source, Saskatoon, SK, Canada.
authors.forename: Chang-Yong
authors.initials: CY
authors.lastname: Kim
authors.affiliation: Department of Physics and Engineering Physics, University of Saskatchewan, Saskatoon, SK, Canada.
authors.forename: Gap Soo
authors.initials: GS
authors.lastname: Chang
authors.affiliation: Department of Veterinary Biomedical Sciences & Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada; Department of Biology & Chemistry and State Key Laboratory in Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China; School of the Environment, Nanjing University, Nanjing, China.
authors.forename: John P
authors.initials: JP
authors.lastname: Giesy
mesh_terms: D000818:Animals; D059001:Aquatic Organisms / Q000378:metabolism*; D001151:Arsenic / Q000032:analysis; D001152:Arsenicals / Q000378:metabolism*; D049872:Bivalvia / Q000378:metabolism; D002851:Chromatography, High Pressure Liquid; D002947:Cities; D003445:Crustacea / Q000378:metabolism; D004784:Environmental Monitoring; D005399:Fishes / Q000378:metabolism; D013058:Mass Spectrometry; D056910:Republic of Korea; D014874:Water Pollutants, Chemical / Q000378:metabolism*
chemical_list: D001152:Arsenicals; D014874:Water Pollutants, Chemical; D001151:Arsenic
keywords: Arsenic speciation; Arsenobetaine; Bioaccumulation; HPLC-ICP/MS; μ-XANES