Abstract
The effects of filter paper type and solvent type on the shaking method for the leachability of dioxins contaminated in marine sediments were examined. The leachability test results were significantly affected by the leakage of fine particle-binded dioxins, which was dependent on the type of filter paper used. Moreover, an increase in the solubility of dioxins due to the association with dissolved organic matter and an incomplete desorption due to insufficient shaking time were identified as other influential factors. Because the test results greatly affect the specification of marine disposal sites and thus the total cost of disposal, revision of the solid-liquid separation procedure in the test protocol is needed to reduce the variability in results.
