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Fig. 4


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Metal concentrations insuspended particulate matterscollected in experimental channels at the upstream (♦) and downstream (♦)sites from the discharge area measured during the 5-week operation of dredging. The dotted lines are 95% prediction intervals of metal concentrations in SPM trapped in the Rhine water during the long-term monitoring (n = 16 data). For Cd, Co and Mn, concentrations were adapted by using a scaling factor.

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