Transport and Distribution of Lindane and Simazine in a Riverine Environment: Measurements in Bed Sediments and Modelling

Simazine and lindane transport in aquatic bed sediments was monitored in flume channel experiments. Concentrations in sediments and associated pore waters were determined in sediment sections at 1 mm resolution down to 5 mm, and then at 10 mm resolution to 50 mm depth. The distributions were then an...

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Bibliographic Details
Published in:Pest management science 2004-05, Vol.69 (5), p.417-417
Main Authors: Allan, Ian J, House, William A, Parker, Andrew, Carter, Joy E
Format: Article
Language:English
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Summary:Simazine and lindane transport in aquatic bed sediments was monitored in flume channel experiments. Concentrations in sediments and associated pore waters were determined in sediment sections at 1 mm resolution down to 5 mm, and then at 10 mm resolution to 50 mm depth. The distributions were then analyzed with a sorption-diffusion-degradation model. A maximum in the concentration of the compounds was detected in pore water near the surface; concentrations in sediment increased to a maximum at the surface itself. A gradient with depth was partly explained by an increase in organic matter content and specific surface area of solids near the interface.
ISSN:1526-498X