title: Styrene dimers and trimers affect reproduction of daphnid (Ceriodaphnia dubia).
abstract: The endocrine disruptor activity of styrene in humans and other vertebrates appears to be negligible. However, offspring numbers were reduced in Ceriodaphnia dubia bred in polystyrene cups. Styrene dimers and trimers were found to be eluted from the polystyrene cups by hexane and methanol with gas chromatography-mass spectrometry. Styrene dimers and trimers at concentrations of 0.04-1.7 microg/l affected C. dubia fertility (25% reduction after seven days), suggesting that styrenes have the potential to impair crustacean populations in the aquatic environment.
authors.affiliation: tatarazako.norihisa@nies.go.jp
authors.forename: Norihisa
authors.initials: N
authors.lastname: Tatarazako
authors.forename: Yuji
authors.initials: Y
authors.lastname: Takao
authors.forename: Katsuyuki
authors.initials: K
authors.lastname: Kishi
authors.forename: Norio a
authors.initials: Na
authors.lastname: Onikura
authors.forename: Koji
authors.initials: K
authors.lastname: Arizono
authors.forename: Taisen
authors.initials: T
authors.lastname: Iguchi
mesh_terms: D000818:Animals; D033361:Cladocera / Q000502:physiology*; D004305:Dose-Response Relationship, Drug; D004703:Endocrine System / Q000187:drug effects; D005260:Female; D008401:Gas Chromatography-Mass Spectrometry; D011157:Population Dynamics; D012098:Reproduction / Q000187:drug effects; D013343:Styrenes / Q000009:adverse effects*; D014874:Water Pollutants, Chemical / Q000009:adverse effects*
chemical_list: D013343:Styrenes; D014874:Water Pollutants, Chemical