Microplastics in the Hamburg port area-an analysis of sediment depth profiles along the upper Elbe river, Germany.

However, a correlation according to Spearman between the microplastic concentration per kg dw and organic matter could not be detected (rho = 0.2, p -value > 0.05) whereas a highly significant positive correlation was found between microplastic content and water content (rho = 0.5, p -value < 0.05).

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