Arctic permafrost contains twice the amount of mercury (Hg) present in the world ocean, atmosphere and soils combined [1]. This Hg can potentially be remobilized during permafrost thaw, methylated and released to ecosystems. To identify and quantify Hg and methylmercury (MeHg) levels and their transformation rates, permafrost soils, thaw lake waters and sediments were sampled in the Canadian Arctic and analyzed for Hg and MeHg content. Mercury methylation and MeHg demethylation rates were also calculated using Hg stable isotope techniques.
Mercury Methylation in Permafrost Thaw Ecosystems
Lodi, Rachele;
2020-01-01
Abstract
Arctic permafrost contains twice the amount of mercury (Hg) present in the world ocean, atmosphere and soils combined [1]. This Hg can potentially be remobilized during permafrost thaw, methylated and released to ecosystems. To identify and quantify Hg and methylmercury (MeHg) levels and their transformation rates, permafrost soils, thaw lake waters and sediments were sampled in the Canadian Arctic and analyzed for Hg and MeHg content. Mercury methylation and MeHg demethylation rates were also calculated using Hg stable isotope techniques.
File in questo prodotto:
| File | Dimensione | Formato | |
|---|---|---|---|
|
314.pdf
accesso aperto
Tipologia:
Documento in Post-print
Licenza:
Accesso libero (no vincoli)
Dimensione
107.52 kB
Formato
Adobe PDF
|
107.52 kB | Adobe PDF | Visualizza/Apri |
I documenti in ARCA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
