Data/hora: 07/06/2024 09:45:22

Provedor de dados: 	5	
País: 	France	
Título: 	La qualité des eaux dans l'Estuaire de la Gironde. 1- Traitement des données. 2 - Synthèse	
Autores: 	Maurice, Laurence.	
Data: 	1993-09	
Ano: 	1993	
Palavras-chave: 	Oxygène; Sels nutritifs; Matière organique; Bactéries; Apports; Estuaire Gironde; Oxygen; Nutrients; Organic matter; Bacteria; Fluxes; Gironde estuary.	
Resumo: 	The main problem of the Girond estuary is a pollution by the cadmium. During this last ten years, the good quality of the water is proved by the analysis of the main physico - chemical and biochemical parameters and bacteria. But since 1989, straight to the Blayais power station, the BOD5 varied between 2 and 3,5 mg.l-1 and a diminution of the dissolved oxygen has been observed; it's probably caused by the accumulation of biodegradable organic matter in the maximum turbidity zone during years characterized by low river flows. For average river flow, urban discharges takes part for 20 % in total fluxes of BD05; in 1991, this part attempts 35 %. During the last 7 years, the pluriannual evolution of the nitrate concentrations measured in the Garonne river shows an encreasing of 18 %.This river is situated in conditions of probable eutrophication since some rates of chi a attempt 100 ug.l-1.	
Tipo: 	Text	
Idioma: 	Francês	
Identificador: 	http://archimer.ifremer.fr/doc/00037/14855/12178.pdf

http://archimer.ifremer.fr/doc/00037/14855/12213.pdf

http://archimer.ifremer.fr/doc/00037/14855/	
Formato: 	application/pdf	
Fonte: 	1993 Toulon

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