A survey might have been done at first glance deposit examples of 10 stations across the Feni River estuary had been reviewed so you’re able to reputation the new accumulation, sources and you can pollution amounts of heavy precious metals. The outcome showed that the typical content material (?g g-1) away from eight picked big precious metals implemented the transaction off Mn () > Cr () > Ni () > Co () > Pb (6.47) > Ag (step one.09) > Since (0.85) > Hg (0.71), and also the concentrations ranged spatially and seasonally having relatively high membership at the upward station and you may inside the rainy season.

Seguir leyendo