Hydrochemistry and mercury cycling in a High Arctic watershed.

  title={Hydrochemistry and mercury cycling in a High Arctic watershed.},
  author={Raymond G Semkin and Greg Mierle and Roy J Neureuther},
  journal={The Science of the total environment},
  volume={342 1-3},
Mass budgets for total mercury, major ions and nutrients were calculated for Amituk Lake, located on Cornwallis Island, Nunavut, Canada. Total mercury in two distinct snowpacks averaged 1.25 and 4.21 ng L(-1); the discharge-weighted concentration of influent streams averaged 0.76 ng L(-1). The recent and pre-industrial Hg(T) fluxes in atmospheric deposition to the catchment were estimated to be 0.57 and 0.23 microg m(-2) but through retention within the catchment and/or re-volatilization from… CONTINUE READING