The objective of this study was to investigate the variation of levels of organic pollution and metal contamination (Al, Ca, Cd, Cu, Cr, Fe, K, Mg, Mn, Na, Pb and Zn) in the sediments of the drainage channels from Una basin in 2002 and 2015, after implementation of the Una Basin...
Open access
Research Article10.9734/JALSI/2018/43188
The objectives of this research were to evaluate the quality and to determine the degree of vulnerability and accessibility of groundwater destined to the public supply of the municipality of Abaetetuba (State of Pará - Brazil), allowing to establish an environmental management p...
Open access
Research Article10.9734/JALSI/2018/41619
Trace elements or trace metals are of great interest in environmental studies due to their toxic and cumulative properties in the biological and sedimentary compartments. The discharge area of the Amazon River mouth receives an immense volume of suspended material with adsorbed t...
Open access
Research Article10.9734/ijecc/2018/v8i127131
Aims: The objective of this research was to evaluate the water pollution levels in the Aurá River basin and to provide subsidies to public decisions for the protection, preservation and conservation of basins for the supply the Metropolitan Region of Belém (MRB). Study Area and M...
Open access
Research Article10.9734/ACRI/2016/28249
Place and Aims: Total concentrations of Hg and geochemical analysis of sediments from the Amazon Continental Shelf (47º52'W-4º19'N, 51º04'W-2º16'S) were determined in 25 sampling sites, during the months of lowest flow of the Amazon River. The aim of this study was to determine t...
Open access
Research Article10.9734/ACSJ/2016/26625
This research aimed to correlate the sedimentary transport with the diagenetic processes in the coastal zone and Amazon Continental Shelf (ACS). Physical and physical-chemical parameters, trace element contents (Cr, Pb, Ni, Zn and Hg), and O2, CO2 and iron flux were determined in...
Open access
Research Article10.9734/jgeesi/2019/v20i430113
This study evaluated the quality of groundwater in the municipality of Abaetetuba (PA, Brazil 1°43'46'' S e 48°52'27'' W) based on the hydrogeological characterization and degree of vulnerability of the aquifer system. The municipality of Abaetetuba is practically all supplied by...
Aims and Place: The Doce River is one of the largest rivers of southeastern Brazil, and has been target of strong environmental impact in recent decades due to mining and farming activities. Influenced by lithological factors and human disturbance, the Doce River has brought chan...
Open access
Research Article10.9734/BJECC/2016/25454