The hydrology and methylmercury dynamics of a Precambrian Shield headwater peatland

Abstract

Hydrobiogeochemical investigation of a small headwater peatland located in the Experimental Lakes Area, northwestern Ontario, Canada, examined the surface and subsurface hydrologic pathways and their relation to the movement and spatial variability of methylmercury (CH 3Hg+).T he hydrology of the peatland controls the mass flux of CH3Hg+ to a downstream pond from the terrestrial ecosystems and influences the production and/or accumulation of CH3Hg+ in the peatland