Mercury distribution in sediment profiles from lakes of the high pantanal, Mato Grosso State, Brazil

Autor:	Lacerda, Luiz Drude de, Salomons, W., Pfeiffer, Wolfgang Christian, Bastos, Wanderley Rodrigues
Jazyk:	angličtina
Rok vydání:	1991
Předmět:	Heavy metals - Mercury Mercúrio - Concentração Mercury - Concentration Mercury Distribution Metais pesados - Mercúrio Mercúrio - Distribuição
Zdroj:	Repositório Institucional da Universidade Federal do Ceará (UFC) Universidade Federal do Ceará (UFC) instacron:UFC
Popis:	For the distribution of mercury released by the local gold mining. Atmospheric transport is the only pathway of mercury contamination of these remote lakes. Mercury concentrations were higher at the surface of sediments (62 to 80 ug.kg-‘) decreasing to values of 20 to 30 ug.kg-’ in deeper layers. Mercury deposition rate was estimated as 90 to 120 ug Hg.m-*.yr-‘. Although mercury concentrations were much lower than in industrialized areas, mercury deposition rate for these Pantanal lakes is of the same order of magnitude of deposition rates measured in lakes in industrialized areas.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=od______3056::b4824656dbeba79005fbd7802e8d8983 http://www.repositorio.ufc.br/handle/riufc/66395 Zobrazit plný text záznamu