title: Accumulation of endocrine disrupting chemicals (EDCs) in the polychaete Paraprionospio sp. from the Yodo River mouth, Osaka Bay, Japan.
abstract: This study presents the levels of endocrine disrupting chemicals (EDCs) accumulated by Paraprionospio sp. from the Yodo River mouth, Osaka Bay. Since high concentrations of nonylphenol (NP), bisphenol A (BP), octylphenol (OP), 17β-estradiol (E2), and estrone (E1) have been measured in sediment from Osaka Bay, some bioaccumulation could be expected particularly in benthic animals. EDCs were analysed in Paraprionospio sp., a dominant benthic species in Osaka Bay. The results showed that Paraprionospio sp. had accumulated varying concentrations (wet weight; w.w.) of NP at 1,460-4,410 ng/g; BP at 22.5-39.6 ng/g; OP at 18.9-45.4 ng/g; E2 at 0.89-4.35 ng/g; and E1 at 0.06-2.50 ng/g. Accumulation of NP and OP were highest among the samples gathered in summer (July 2008), while concentrations of BP, E2, and E1 did not much differs within 3 years. EDC levels in Paraprionospio sp. were apparently greater than those in sediments showing bioaccumulation.
authors.affiliation: United Graduate School of Agricultural Sciences, Kagoshima University, 4-50-20 Shimoarata, Kagoshima, 890-0056, Japan.
authors.forename: Mohd Yusoff
authors.initials: MY
authors.lastname: Nurulnadia
authors.forename: Jiro
authors.initials: J
authors.lastname: Koyama
authors.forename: Seiichi
authors.initials: S
authors.lastname: Uno
authors.forename: Asami
authors.initials: A
authors.lastname: Kito
authors.forename: Emiko
authors.initials: E
authors.lastname: Kokushi
authors.forename: Eugene Tan
authors.initials: ET
authors.lastname: Bacolod
authors.forename: Kazuki
authors.initials: K
authors.lastname: Ito
authors.forename: Yasutaka
authors.initials: Y
authors.lastname: Chuman
mesh_terms: D000818:Animals; D061006:Bays / Q000737:chemistry; D052244:Endocrine Disruptors / Q000378:metabolism*; D004784:Environmental Monitoring; D007564:Japan; D011077:Polychaeta / Q000378:metabolism*; D014874:Water Pollutants, Chemical / Q000378:metabolism*
chemical_list: D052244:Endocrine Disruptors; D014874:Water Pollutants, Chemical