Data/hora: 01/06/2024 09:35:44

Provedor de dados: 	5	
País: 	France	
Título: 	Coprostanol levels and organic enrichment in sediments of the Bilbao estuary (north of Spain)	
Autores: 	Saiz-salinas, Ji; Gonzalez-oreja, Ja.	
Data: 	1998-03	
Ano: 	1998	
Palavras-chave: 	Estuaire de Bilbao; Coprostanol; Sédiment; Enrichissement organique; Pollution; Bilbao estuary; Coprostanol; Sediment; Organic enrichment; Sewage pollution.	
Resumo: 	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 with COP levels, we can conclude the existence of major pollution by the addition of untreated sewage, coming from mainly domestic sources. The implementation of a sewerage treatment plan by the local water authority needs the monitoring of reliable sewage tracers, such as faecal sterols, to assess the effectiveness of the plan in reducing the effects of pollution.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	http://archimer.ifremer.fr/doc/00326/43689/43120.pdf

DOI:10.1016/S0399-1784(98)80018-2

http://archimer.ifremer.fr/doc/00326/43689/	
Editor: 	Gauthier-villars/editions Elsevier	
Formato: 	application/pdf	
Fonte: 	Oceanologica Acta (0399-1784) (Gauthier-villars/editions Elsevier), 1998-03 , Vol. 21 , N. 2 , P. 319-324	
Fonte: 	Elsevier, Paris

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