GLAUCIA B.B. BERBEL
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Artigo IPEN-doc 20874 Impact of harbour, industry and sewage on the phosphorus geochemistry of a subtropical estuary in Brazil2015 - BERBEL, GLAUCIA B.B.; FAVARO, DEBORAH I.T.; BRAGA, ELISABETE S.The distribution of different forms of phosphorus in surface sediment from 17 sites were investigated by SEDEX method. The sites were divided into three sectors: Santos Channel (SC – influenced by harbour, fertilizers plants and phosphogypsum mountains), São Vicente Channel (SVC– domestic waste) and Santos Bay (SB – sewage outfall). The average percentage of each P fraction of the surface sediments in this region followed the sequence P–Fe (38%) > Porg (27%) > Pexch (13%) > Detrital – P (12%) > Auth – P (10%). Ptotal varied from 3.57 to 74.11 lmol g1 in both seasons. In SVC, Pexch ranged from 13% to 27% and Porg varied from 12% to 56%. These high percentages of Pexch/Ptotal (greater than 20%) may be related to low oxygen resulting from oxygen consumed by intensive organic matter decomposition as well as the salty water that leads to cation and anion flocculation. Also, the possibility of an influence related to the industrial source of Pexch is not ruled out. No significant seasonal differences were found among sites, except for sewage outfall, with changing in the grain size and hence, the P geochemistry. During the summer in the sewage outfall station, Porg represented 37% of Ptotal, which decreased to 13% in the winter. These results suggest that high percentages of organic phosphorus cannot be attributed only to autochthonous and allochthonous organic matter, but also to detergents and/or domestic waste. In contrast, spatial differences among sectors were observed, with the highest values of each fraction associated with sites near industrial and domestic waste activities.Resumo IPEN-doc 10037 Total mercury in bottom sediment samples from admiralty bay, King George Island, Antarctic Region2004 - FAVARO, D.I.T.; CAVALLARO, G.P.M.; DAMATO, S.R.; MAZZILLI, B.P.; BRAGA, E.S.; BOSQUILHA, G.E.; BERBEL, G.B.B.Resumo IPEN-doc 13663 Assessment of metal and trace elements in Cananeia esturay, Brazil, by neutron activation and atomic absorption techniques2007 - AMORIM, E.P.; FAVARO, D.I.T.; BERBEL, G.; BRAGA, E.S.Artigo IPEN-doc 12042 Metal and trace element assessment of estuary sediments from santos, Brazil, by neutron activation and atomic absorption techiniques2007 - AMORIM, EDUARDO P.; FAVARO, DEBORA I.T.; BERBEL, GLAUCIA B.B.; BRAGA, ELISABETE S.Artigo IPEN-doc 14363 Variacao temporal de componentes geoquimicos nos sedimentos superficiais de Cananeia com destaque as distribuicoes de elementos metalicos2007 - AMORIM, EDUARDO P.; BERBEL, GLAUCIA B.B.; FAVARO, DEBORAH I.T.; BRAGA, ELISABETEArtigo IPEN-doc 14365 Distribuicao espacial de CNPS e suas relacoes com metais nos sedimentos superficiais do Estuario de Cananeia, (SP) - inverno de 20052007 - BERBEL, GLAUCIA B.B.; AMORIM, EDUARDO P.; RODRIGUES, MARCELO; MAHIQUES, MICHEL M.; FAVARO, DEBORA; BRAGA, ELISABETE de S.Artigo IPEN-doc 17269 Sediment geochemistry in Admiralty Bay (Antarctica): trace, rare earth elements and radionuclides2011 - FAVARO, D.I.T.; SILVA, P.S.C.; MAZZILLI, B.P.; CAVALLARO, G.P.M.; TADDEI, M.H.T.; BERBEL, G.B.B.; BRAGA, E.S.