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Pollution by hexachlorobenzene and pentachlorophenol in the coastal plain of São Paulo state, Brazil
(2004-08-01)
Organochlorine compounds were dumped by chemical industries during the 1970s in many areas of the coastal plain of São Paulo state in Brazil. These dumps, located on hillsides and in valleys, in both rural and urban ...
Electrochemical oxidation of wastewater containing aromatic amines using a flow electrolytic reactor
(2013-04-16)
Aromatic amines are environmental pollutants and represent one of the most important classes of industrial and natural chemicals. Some types of complex effluents containing these chemical species, mainly those originated ...
Radon emissions related to the granitic Precambrian shield in southern Brazil
(2013-03-01)
The equivalent uranium (eU) activity concentration was analysed in selected granite samples at several sites in Porto Alegre, Southern Brazil, to obtain information on the radon (222Rn) generation by the aquifer rock ...
Residues of organochlorine pesticides and PCBs in some Brazilian municipal solid waste compost
(2007-08-01)
Persistent organic pollutants (POPs), organochlorine pesticides and polychlorinated biphenyls (PCBs), listed as per the Stockholm Convention (α -HCH, β -HCH, γ -HCH, p,p′-DDT, o,p′-DDT, p,p′-DDD, p,p′-DDE, aldrin, endrin, ...
Uso de macroalgas para avaliação da Poluição orgânica no Rio Preto, noroeste do estado de São Paulo.
(1994-12-01)
The Preto River, located in the northwest of São Paulo State, receives a total wastewater load of 15.150 kg DBO day-1, from which 13.685 kg DBO day-1 (90.5%) corresponds to domestic sewage, and the city of São José do Rio ...
Concentrations of Cu, Fe, Mn, and Zn in tropical soils amended with sewage sludge and composted sewage sludge
(2013-04-01)
Sewage sludge may be used as an agricultural fertilizer, but the practice has been criticized because sludge may contain trace elements and pathogens. The aim of this study was to compare the effectiveness of total and ...
Evaluation of seasonal dynamics and bioindication potential of macroalgal communities in a polluted tropical stream
(E Schweizerbart'sche Verlags, 2002-08-01)
Macroalgal communities and environmental variables were analyzed seasonally along a polluted tropical stream in São Paulo State, Brazil, We aimed to improve the knowledge of tropical macroalgal communities, to study the ...
Mapping soil pollution by spatial analysis and fuzzy classification
(Springer, 2010-04-01)
Spatial analysis and fuzzy classification techniques were used to estimate the spatial distributions of heavy metals in soil. The work was applied to soils in a coastal region that is characterized by intense urban occupation ...