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Mercury alkylation in freshwater sediments from Scottish canals.
Cavoura, Olga; Brombach, C C; Cortis, R; Davidson, C M; Gajdosechova, Z; Keenan, H E; Krupp, E M.
Afiliación
  • Cavoura O; National School of Public Health, Dept. of Environmental and Public Health Engineering, Athens, Greece; University of Strathclyde, Dept. of Civil and Environmental Engineering, Glasgow, Scotland, UK. Electronic address: okavoura@esdy.edu.gr.
  • Brombach CC; University of Aberdeen, Dept. of Chemistry, Aberdeen, Scotland, UK.
  • Cortis R; University of Strathclyde, WestCHEM, Dept. of Pure and Applied Chemistry, Glasgow, Scotland, UK.
  • Davidson CM; University of Strathclyde, WestCHEM, Dept. of Pure and Applied Chemistry, Glasgow, Scotland, UK. Electronic address: c.m.davidson@strath.ac.uk.
  • Gajdosechova Z; University of Aberdeen, Dept. of Chemistry, Aberdeen, Scotland, UK.
  • Keenan HE; University of Strathclyde, Dept. of Civil and Environmental Engineering, Glasgow, Scotland, UK. Electronic address: h.e.kennan@strath.ac.uk.
  • Krupp EM; University of Aberdeen, Dept. of Chemistry, Aberdeen, Scotland, UK. Electronic address: e.krupp@abdn.ac.uk.
Chemosphere ; 183: 27-35, 2017 Sep.
Article en En | MEDLINE | ID: mdl-28531556
Mercury concentrations were investigated in freshwater sediment from two canals in Scotland, UK. High concentrations found in the Union Canal (35.3-1200 mg kg-1) likely originate from historical munitions manufacture, with lower levels in the Forth & Clyde Canal (0.591-9.14 mg kg-1). Concentrations of methylmercury (MeHg) were low - from 6.02 to 18.6 µg kg-1 (0.001-0.023% of total Hg) in the Union Canal and from 3.44 to 14.1 µg kg-1 (0.11-0.58% of total Hg) in the Forth & Clyde Canal - and there was a significant inverse relationship between total Hg concentration and %MeHg. Total Hg concentration was significantly negatively correlated with pH and positively correlated with Fe content (in the Union Canal only) but not with organic matter, S content or the proportion of clay present. The MeHg concentration was not correlated with any of the above sediment parameters. Ethylmercury was detected in the most highly contaminated sediments from the Union Canal.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Monitoreo del Ambiente / Sedimentos Geológicos / Agua Dulce / Mercurio / Compuestos de Metilmercurio País/Región como asunto: Europa Idioma: En Revista: Chemosphere Año: 2017 Tipo del documento: Article Pais de publicación: Reino Unido
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Monitoreo del Ambiente / Sedimentos Geológicos / Agua Dulce / Mercurio / Compuestos de Metilmercurio País/Región como asunto: Europa Idioma: En Revista: Chemosphere Año: 2017 Tipo del documento: Article Pais de publicación: Reino Unido