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Coprostanol levels and organic enrichment in sediments of the Bilbao estuary (north of Spain) ArchiMer
Saiz-salinas, Ji; Gonzalez-oreja, Ja.
An assessment was made of the distribution of the faecal sterol coprostanol (COP) in sediments in the Bilbao estuary. Concentrations of COP ranged from 135.15 to 10.77 mu g g(-1) dry weight, from the inner to the open estuary, with a mean value of 51.43 mu g g(-1); the highest concentrations were found near the mouths of several tributaries flowing into the estuary. Comparisons with ether published values indicate that sediments from the Bilbao estuary are affected by sewage pollution in a similar degree to that reported for other estuaries in the world. Organic enrichment and anaerobic sediment conditions prevail in three-fourths of its watercourse bed. Since the spatial distribution of several organic sedimentary parameters could be clearly correlated...
Tipo: Text Palavras-chave: Estuaire de Bilbao; Coprostanol; Sédiment; Enrichissement organique; Pollution; Bilbao estuary; Coprostanol; Sediment; Organic enrichment; Sewage pollution.
Ano: 1998 URL: http://archimer.ifremer.fr/doc/00326/43689/43120.pdf
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