Topic
Bioaccumulation
About: Bioaccumulation is a research topic. Over the lifetime, 7112 publications have been published within this topic receiving 208953 citations. The topic is also known as: bioakumulace.
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TL;DR: In this paper, organochlorine (OC) pesticides in ice algae, phytoplankton, and micro-zooplankton during summer months and in meso-and macro-zoplankton throughout 1993 in the Canadian archipelago (Barrow Strait) were compared with seasonal changes in seawater (upper 50 m) concentrations.
Abstract: Organochlorine (OC) pesticides in ice algae, phytoplankton, and microzooplankton during summer months and in meso- and macrozooplankton throughout 1993 in the Canadian archipelago (Barrow Strait) were compared with seasonal changes in seawater (upper 50 m) concentrations. α-HCH, HCB, ΣCHL, dieldrin, γ-HCH, ΣPCB, and ΣDDT ( 100 ng g-1 lipid, >10 ng g-1 wet weight) than ice algae and phytoplankton. Highest OC concentrations occurred in macrozooplankton during the winter−spring period of ice cover. Concentrations for all compounds except HCHs decreased during the open water period when bioaccumulation factors (BAFs) (tissue:water concentrations) were maximum (106−107 lipid weight basis) for CHBs and ΣDDT and minimum (103−104) for HCHs. BAFs on a wet weight basis mirrored lipid-based values but were approximately 10-fold lower. Meso- and macrozooplankton had minimal BAFs in July and Aug...
71 citations
TL;DR: Almost all of the studied compounds, with exception of sertraline (BAF of 6200), were found to not be bioaccumulative in fish livers, and favourable conditions for natural pharmaceutical removal were proposed.
70 citations
TL;DR: There appears to be no overall trend in the global measured concentrations reported in cetaceans between 1975 and 2010, although differences between areas show that the highest concentrations in recent decades have been measured in the tissues of Mediterranean odontocetes.
70 citations
TL;DR: Mercury levels in fish inhabiting the dam at the discharge site were found to be approximately 2-fold higher than those from an upstream site; while mercury pollution progressively increased downstream of the hot spot, indicating downstream transport and increased mercury bioavailability as a function of distance downstream from the contamination source.
70 citations
TL;DR: The biokinetic modeling results showed that MeHg was the greater contributor to the overall mercury bioaccumulation and dietary exposure was the predominant pathway.
70 citations