Impact of industrial and mine drainage wastes on the heavy metal distribution in the drainage basin and estuary of the Sado River (Portugal).
作者： Philippe Quevauviller , Renaud Lavigne , Leopoldo Cortez
DOI: 10.1016/0269-7491(89)90155-3
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摘要: This paper presents results from a survey of the heavy metal distribution in sediments drainage basin and estuary Sado River (Portugal). In basin, metals originate mostly pyrite outcrop erosion mining activities (Cd, Zn, Cu locally Hg, Pg), also crust (Sn, Ni, Ti, Zr). These sources are not correlated with particulate organic carbon (POC) so thought to be inorganic forms this area. Anthropogenic (urban industrial) found lower Cd, Pb Cu) along high POC concentrations. zone, these strongly adsorbed onto particles. Furthermore, organo-metallic species likely present, as demonstrated case Sn, since methyl- butyl-tin were detected suggests need for detection understand geochemical cycles. No long-term changes concentrations sediment cores, except middle (Zn, due development on an industrial scale 1860s.
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