Mercury Concentrations in the North Atlantic in Relation to Cadmium, Aluminium and Oceanographic Parameters

摘要: The water masses investigated are derived from both arctic and temperate regions. mean reactive mercury concentration in 73 samples is 8.5± 3.5 pmol 1−1 the total 47 11± 5.0 1−1. distribution dissimilar to that of cadmium aluminium it has not a simple correlation with dissolved silicate. strongly related nutrients nitrate phosphate, but Δ Cd: NO3 PO4 slope values significantly lower than have been found Pacific. concentrations range 8.1–25 nmol increase generally depth. At deep station south Iceland Irminger Water at intermediate depths, this mass had higher concentrations, 17 1−1, surface or bottom water. It suggested atmospheric input may effective when formed by convective mixing winter. East Greenland Current which receives glacial melt low 7.0± insignificantly different Arctic Intermediate Water, 9.5± Bottom 2.5 Previous hypotheses large scale effects geothermal emanations examined concluded proximity alone body site such an activity no indication its concentration.