Speciation and Concentrations of Mercury in Certain Coastal Marine Sediments

ISSN： 0049-6979

Source： Water, Air, and Soil Pollution, Vol.103, Iss.1-4, 1998-04, pp. : 129-136

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

Concentrations of total mercury (Hg), methyl Hg and Hg(II) were determined in coastal marine sediments collected from the Baltic, South China and the Bering Seas. Methyl Hg concentrations in sediments were between 0.01 and 2 ng g^-1 on a dry weight basis, accounting for only <1% of="" the="" total="" hg="" concentrations.="" the="" percentage="" of="" hg(ii)="" (i.e.="" available="" hg)="" in="" total="" hg="" was="" between="" 5="" and="" 13="" suggesting="" that="" most="" of="" the="" hg="" in="" sediments="" was="" bound="" as="" hgs="" and/or="" hg-humic="" complexes.="" relatively="" larger="" proportion="" of="" methyl="" hg="" was="" found="" in="" less="" polluted="" freshwater="" sediments="" than="" in="" marine="" sediments.="" methyl="" hg="" concentrations="" in="" marine="" sediments="" were="" not="" found="" to="" be="" correlated="" with="" total="" hg="" and/or="" hg="" (ii)="" concentrations.="">