title: An assessment of the bioaccumulation of estrone in Daphnia magna.
abstract: The bioaccumulation of estrone by Daphnia magna was determined. Direct uptake via the aqueous medium occurred within the first 16 h. A bioconcentration factor of 228 was established over all temporal periods. Ingestion via Chlorella vulgaris gave a partitioning factor of 24, which may approximate to a biomagnification factor assuming steady state conditions. These preliminary results indicate that the partitioning to Daphnia magna via the food source, C. vulgaris is less significant than bioconcentration.
authors.affiliation: Environmental Processes and Water Technology Research Group, Department of Environmental Science and Technology, Imperial College London, Exhibition Road, London SW7 2BP, United Kingdom.
authors.forename: Rachel L
authors.initials: RL
authors.lastname: Gomes
authors.forename: Hannah E
authors.initials: HE
authors.lastname: Deacon
authors.forename: Ka M
authors.initials: KM
authors.lastname: Lai
authors.forename: Jason W
authors.initials: JW
authors.lastname: Birkett
authors.forename: Mark D
authors.initials: MD
authors.lastname: Scrimshaw
authors.forename: John N
authors.initials: JN
authors.lastname: Lester
mesh_terms: D000818:Animals; D001682:Biological Availability; D002708:Chlorella; D003621:Daphnia / Q000502:physiology*; D004781:Environmental Exposure; D004970:Estrone / Q000493:pharmacokinetics*; D014018:Tissue Distribution; D014873:Water Pollutants / Q000493:pharmacokinetics*
chemical_list: D014873:Water Pollutants; D004970:Estrone