3 documents found, page 1 of 1
Flood pulse and spatial dynamics of mercury in sediments in Puruzinho lake, Bra...
Almeida, Ronaldo de; Bernardi, José Vicente Elias; Oliveira, Ronaldo Cavalcante; Carvalho, Dario Pires de; Manzatto, Angelo GilbertoThe study was conducted in Puruzinho lake (Humaitá, AM) considering seasonal periods of rainy and dry in way to elucidate the flood pulse importance in the deposition, remobilization and distributions of mercury and organic matter in bottom sediments in the Madeira River Basin (Brazilian Amazon). Bottom sediments and soils samples were analyzed for total mercury and organic matter. Mercury concentrations obtain...
Mercury spatiality and mobilization in roadside soils adjacent to a savannah ec...
Rodrigues, Ygor O.S.; Dórea, José G.; Landim, P. M.B. [UNESP]; Bernardi, José Vicente Elias; Monteiro, Lucas Cabrera; de Souza, João Pedro RudriguesMade available in DSpace on 2022-04-29T08:37:24Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-04-01; Universidade de Brasília; Mercury (Hg) is a persistent environmental pollutant of global concern. Recognized anthropic contributions to environmental Hg pollution include fuel fossil emissions, soil erosion, and industrial and mining activities. Environmental Hg that enters water bodies can be methylate...
Variação sazonal de elementos-traço associados aos sólidos em suspensão no alto...
Galvão, R.C.F.; Gomes, J. P. O.; Almeida, Ronaldo de; Bernardi, José Vicente Elias; Bastos, Wanderley Rodrigues; Lacerda, Luiz Drude deNatural and anthropogenic factors contribute to the increase in suspension solids production in the Madeira River basin, being trace elements the main substances carried in suspension. Among these elements Hg is one representing greater risk to human health. This study on the high Madeira River basin investigate the seasonal variation of suspended matter and associated trace elements in two contrasting hydrolog...