Streamwater from a stream network of 15 small boreal catchments (0.03–67 km) in northern Swedenwas analyzed for unfiltered (total) and filtered (<0.4 lm) concentrations of iron (Fetot andFe<0.4) andmanganese (Mntot andMn<0.4). The purposewas to investigate the temporal and spatial dynamics of Fe,Mn and dissolved organic carbon (DOC) as influenced by snowmelt driven spring floods and landscape p...

The aim of this study is to evaluate total arsenic (As) concentrations in drinking water (main pathway of human exposure) and its hydrogeochemical controls in the "Morro do Ouro" gold mine region, which is the largest gold mine in Brazil, characterized by gold-arsenopyrite association. Arsenic concentration was generally below the detection limit (LOD < 0.5 μg L(-1)). Thus, water ingestion may ...

In this study, we analyzed the hydrogeochemistry of 350 underground wells in northern region state Minas Gerais, Brazil, for water-chemical parameters that may contribute to chemical clogging emitters drip irrigation systems. Risk class maps were generated each parameter, and area was classified based on water characteristics, considering degree water-use restriction micro-irrigation (i.e., no,...

Acid Mine Drainage (AMD) generates a great concern worldwide due to its severe impact water resources during hundreds and even thousands of years after the cessation mining activity if control measures are not implemented. AMD treatment is an environmental necessity, but also constitute tremendous opportunity for valorization potential secondary sources elements economic interest. The knowledge...