**Table 4.**

*Sediment texture and organic matter (OM) in %.*

Porvenir" site with 24.20 μg/g. The results for Fe in the rainy season were higher at the "El Porvenir" site with 224.75 μg/g.

To analyze a contaminated site, it is important to establish correlations with the physical and chemical characteristics of the sediments, because different contaminants are related to organic matter and fine fractions. In this study, the texture of the sediments, organic matter, and their relationships with heavy metals (**Table 4**). The organic matter content is high and is related to the extensive area of mangroves, various species of macrophytes, and human settlements, which contributes to the variability of organic matter.
