Heavy metal transport in the Acarí‐São João de Merití River System, Brazil

V.S. Rego Laboratorio de Radioisótopos, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, IIha do Fundão, CCS, Bloco G, Rio de Janeiro, RJ, CEP 21941, Brazil

W.C. Pfeiffer Laboratorio de Radioisótopos, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, IIha do Fundão, CCS, Bloco G, Rio de Janeiro, RJ, CEP 21941, Brazil

C.C. Barcellos Laboratorio de Radioisótopos, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, IIha do Fundão, CCS, Bloco G, Rio de Janeiro, RJ, CEP 21941, Brazil

C.E. Rezende Laboratorio de Radioisótopos, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, IIha do Fundão, CCS, Bloco G, Rio de Janeiro, RJ, CEP 21941, Brazil

O. Malm Laboratorio de Radioisótopos, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, IIha do Fundão, CCS, Bloco G, Rio de Janeiro, RJ, CEP 21941, Brazil

C.M.M. Souza Laboratorio de Radioisótopos, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, IIha do Fundão, CCS, Bloco G, Rio de Janeiro, RJ, CEP 21941, Brazil

Abstract

Discharge of heavy metals from the Acari‐São João de Merití River System into Guanabara Bay and the physico‐chemical mechanisms involved in the transport of these pollutants to the sea are evaluated. Determination of Hg, Cd, Pb, Zn, Mn, Fe, Cr, Cu and Ni concentrations by atomic absorption spectrophotometry were carried out for water, suspended particulate matter and bottom sediment samples. Transport of heavy metals occurs primarily via the particulate phase where mobile forms of metals prevail. Contamination of bottom sediments are indicated for Hg, Cd, Pb, Zn, Cu and Cr.

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Heavy metal transport in the Acarí‐São João de Merití River System, Brazil

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Heavy metal transport in the Acarí‐São João de Merití River System, Brazil

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