Research School for Socio-Economic and
Natural Sciences of the Environment
Research School for Socio-Economic and
Natural Sciences of the Environment
Agenda

Artem Krasnobaev

Date: 16 June 2020
Time: 16:00 - 17:30
Location: Auditorium, Wageningen University

Dissertation title: 

Quantification and modelling of Fluxes of Persistent organic pollutants (POPs) to Antarctic marine benthic organisms (FluxPOPs)

Group: Toxicology, Wageningen University
Promotor: Ivonne Rietjens
Co-promotors: Nico van den Brink, Lloyd Peck

Abstract:

The thesis established concentrations of PCBs, OCPs and PBDEs in birds, benthic invertebrates and water in the Antarctic costal ecosystems. For birds, the POPs concentrations wee comparable to the ones from the previous studies of the last decade. For invertebrates, the concentrations were 10-100 smaller than previously reported. For the first time, BDE-209 was found in the Antarctic benthos. The patterns of POPs were closely linked to their physico-chemical properties and the traits of the species. The concentrations in water demonstrated clear seasonal dynamics, with the highest values corresponding to the periods of the melting of the sea ice and phytoplankton bloom. Finally, a toxicodynamic study demonstrated that reaction of the Antarctic invertebrates to exposure to PCBs was linked to the patterns to the composition of lipids in these animals. At the same time, current bioassays may not be suitable for establishing POPs burden.

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