“…Extraction activity ceased in 1981 and left many abandoned mines, and waste dumps, mineral deposits, and heavy metals and metalloids (As, Cr, Co, Cu, Pb, Ni, and Zn) related to iron extraction and processing, with consequent water and soil contamination [45]. Those metals likely accumulated in coastal sediments due to weathering processes [44,46,47]. In the same way, metals (Ni, Pb, Hg, Cu, and Zn) found in sediment in the PB area can be attributed to the steel industry and power plants located in the industrial area, as suggested by previous studies [46,48].…”