Ontology highlight
ABSTRACT:
SUBMITTER: Jonsson S
PROVIDER: S-EPMC4908375 | biostudies-literature | 2016 Jun
REPOSITORIES: biostudies-literature
Jonsson Sofi S Mazrui Nashaat M NM Mason Robert P RP
Scientific reports 20160615
Underlying formation pathways of dimethylmercury ((CH3)2Hg) in the ocean are unknown. Early work proposed reactions of inorganic Hg (Hg(II)) with methyl cobalamin or of dissolved monomethylmercury (CH3Hg) with hydrogen sulfide as possible bacterial mediated or abiotic pathways. A significant fraction (up to 90%) of CH3Hg in natural waters is however adsorbed to reduced sulfur groups on mineral or organic surfaces. We show that binding of CH3Hg to such reactive sites facilitates the formation of ...[more]