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. 2016 Oct 4;48(1):71–78. doi: 10.1016/j.bjm.2016.09.007

Fig. 2.

Fig. 2

A heat map of heavy metal (columns) occurrences in each sediment sample (rows). The number of blue boxes indicates that a given heavy metal has a high occurrence in that sediment sample. Dendrograms represent hierarchical clustering of sediment samples or heavy metals.