Geochemical fractionation of metals and semimetals in surface sediments from tropical impacted estuary (Guanabara Bay, Brazil)

Ecological risk evaluation of sediment metals in a tropical Euthrophic Bay, Guanabara Bay, Southeast Atlantic

“…Extreme concentration values were attributed to point sources of contamination, such as the contribution of São João de Meriti river with a considerable decrease away from the river mouth (Wasserman et al, 2000). It is also emphasized as important sources of anthropogenic input the harbor areas, as was properly demonstrated by Baptista-Neto et al (2005) and Cordeiro et al (2015), corresponding to the stations 13, 14 and 15, situated in Sector 5.…”

Controlling Factors on the Abundance, Diversity and Size of Living Benthic Foraminifera in the Ne Sector of Guanabara Bay (Brazil)

“…Concentrations of these metals in most of the sites can be considered relatively low when compared with other regions of Guanabara Bay (e.g., Baptista Neto et al 2000, 2005, 2006Faria and Sanchez, 2001;Covelli et al, 2012;Donnici et al, 2012;Cordeiro et al, 2015). According to the results of these authors, the studied area can be considered one of the least polluted parts by metals of Guanabara Bay.…”

“…Deforestation, rivers rectification, release of about 8 million of domestic untreated sewage, maritime terminals, ports, refineries and shipyards are among the human activities that mostly contribute to the environmental degradation of GB (Vilela et al, 2014). Because of this, GB was identified as one of the most polluted coastal environments in Brazilian coastline (e.g., Rebello et al, 1986;Vandenberg and Rebello, 1986;Leal and Wagener 1993;Barrocas and Wasserman, 1995;Perin et al, 1997;Baptista Neto et al 2000, 2005, 2006Faria and Sanchez, 2001;Covelli et al, 2012;Donnici et al, 2012;Cordeiro et al, 2015). The effects of pollution on organisms living in this environment are still poorly understood.…”

Northeast Guanabara Bay and Coastal Plain Holocene Sedimentary Evolution (Brazil): A Contribution

“…This setting shows that the bay acts as a sink, especially for fine sediment particles. Nowadays, considering the alarming environmental quality of Guanabara Bay Fonseca et al, 2013;Abuchacra et al, 2015;Cordeiro et al, 2015;Fistarol et al, 2015;Abreu et al, 2016;Aguiar et al, 2016;Carvalho and Baptista Neto, 2016;Silva et al, 2016;Soares-Gomes et al, 2016), we assume that the bay acts as a sink not only for sediments but also for pollutants.…”

“…Amador (1997Amador ( , 2012 suggested that Guanabara Bay doubled in size during the Maximum Holocene Transgression (Angulo et al, 2006) and showed that it was drastically altered by post-colonial human induced activities. Guanabara Bay is surrounded by the metropolitan area of Rio de Janeiro and is considered a highly impacted environment, particularly in view of industrial activities, urban and agricultural runoff, trace metals, sewage discharge, anthropogenic debris, dredging, coastal interventions and landfills Fonseca et al, 2013;Abuchacra et al, 2015;Cordeiro et al, 2015;Fistarol et al, 2015;Aguiar et al, 2016;Carvalho and Baptista Neto, 2016;Silva et al, 2016;Soares-Gomes et al, 2016).…”