An assessment of the bioaccumulation of estrone in Daphnia magna.
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.
Gomes
Rachel L
RL
Environmental Processes and Water Technology Research Group, Department of Environmental Science and Technology, Imperial College London, Exhibition Road, London SW7 2BP, United Kingdom.
Deacon
Hannah E
HE
Lai
Ka M
KM
Birkett
Jason W
JW
Scrimshaw
Mark D
MD
Lester
John N
JN
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*
D014873:Water Pollutants; D004970:Estrone