%0 Journal Article
%A Borgå, Katrine
%A Fjeld, Eirik
%A Kierkegaard, Amelie
%A McLachlan, Michael
S.
%D 2013
%T Consistency
in Trophic Magnification Factors of Cyclic
Methyl Siloxanes in Pelagic Freshwater Food Webs Leading to Brown
Trout
%U https://acs.figshare.com/articles/journal_contribution/Consistency_in_Trophic_Magnification_Factors_of_Cyclic_Methyl_Siloxanes_in_Pelagic_Freshwater_Food_Webs_Leading_to_Brown_Trout/2341318
%R 10.1021/es404374j.s001
%2 https://ndownloader.figshare.com/files/3978931
%K legacy POP TMFs
%K Trophic Magnification Factors
%K Cyclic Methyl Siloxanes
%K Randsfjorden
%K pelagic food web
%K Food web biomagnification
%K D 5
%K wastewater treatment plants
%K Pelagic Freshwater Food Webs
%K Lake Mj øsa
%K LOQ
%K cVMS
%K trophic magnification factors
%K Mj øsa
%X Cyclic volatile methyl siloxanes
(cVMS) concentrations were analyzed
in the pelagic food web of two Norwegian lakes (Mjøsa, Randsfjorden),
and in brown trout (Salmo trutta) and Arctic char
(Salvelinus alpinus) collected in a reference lake
(Femunden), in 2012. Lakes receiving discharge from wastewater treatment
plants (Mjøsa and Randsfjorden) had cVMS concentrations in trout
that were up to 2 orders of magnitude higher than those in Femunden,
where most samples were close to the limit of quantification (LOQ).
Food web biomagnification of cVMS in Mjøsa and Randsfjorden was
quantified by estimation of trophic magnification factors (TMFs).
TMF for legacy persistent organic pollutants (POPs) were analyzed
for comparison. Both decamethylcyclopentasiloxane (D5) and dodecamethylcyclohexasiloxane
(D6) biomagnified with TMFs of 2.9 (2.1–4.0) and 2.3 (1.8–3.0),
respectively. Octamethylcyclotetrasiloxane (D4) was below the LOQ
in the majority of samples and had substantially lower biomagnification
than for D5 and D6. The cVMS TMFs did not differ between the lakes,
whereas the legacy POP TMFs were higher in Mjøsa than inRandsfjorden.
Whitefish had lower cVMS bioaccumulation compared to legacy POPs,
and affected the TMF significance for cVMS, but not for POPs. TMFs
of D5 and legacy contaminants in Lake Mjøsa were consistent with
those previously measured in Mjøsa.
%I ACS Publications