Diffuse and Point Sources of Silica in the River Watershed

The importance of different dissolved silica (DSi) and amorphous silica (ASi) inputs, both diffuse inputs and from point sources, to the highly anthropogenically impacted Seine River watershed was determined. The total per capita point source inputs of Si(DSi + ASi) were found to be 1.0 and 0.8 g Si...

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Bibliographic Details
Published in:Environmental science & technology 2006-11, Vol.40 (21), p.6630-6630
Main Authors: Sferratore, Agata, Garnier, Josette, Billen, Gilles, Conley, Daniel J, Pinault, Severine
Format: Article
Language:English
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Summary:The importance of different dissolved silica (DSi) and amorphous silica (ASi) inputs, both diffuse inputs and from point sources, to the highly anthropogenically impacted Seine River watershed was determined. The total per capita point source inputs of Si(DSi + ASi) were found to be 1.0 and 0.8 g Si inhabitant super(-1) d super(-1) in raw and treated waters of the Acheres wastewater treatment plant, in agreement with calculations based on average food intake and silica-containing washing products consumption. Diffuse sources of Si were of 1775 kg Si km super(-2) y super(-1) in wet conditions and 762 kh Si km super(-2)y super(-1) in dry conditions, with the proportion of ASi around 6 percent.
ISSN:0013-936X