Chemical speciation of mercury, sulfur and iron in a dystrophic boreal lake sediment, as controlled by the formation of mackinawite and framboidal pyrite

• Published in: Geochimica et Cosmochimica Acta
• Main Authors: Skyllberg, Ulf, Persson, Anna, Tjerngren, Ida, Kronberg, Rose-Marie, Drott, Andreas, Meili, Markus, Björn, Erik
• Format: Article in Journal/Newspaper
• Language: English
• Published: Umeå universitet, Kemiska institutionen 2021
• Subjects: Mercury; Methyl mercury; Sulfur; Iron; Pyrite; Mackinawite; Metacinnabar; Chemical speciation; Mercury biogeochemistry; Boreal lake; Geochemistry; Geokemi; Boreal Lake; Northern Sweden
• Online Access: http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-180656; https://doi.org/10.1016/j.gca.2020.11.022

The chemical speciation of mercury (Hg), methyl mercury (MeHg), sulfur and iron was investigated in the sediment and porewater of Lake Ängessjön, a boreal, shallow (maximum depth 2.5 m), oligo-/dystrophic lake in northern Sweden. The lake receives terrestrial stream runoff from surrounding coniferou...