The objective of this study was to evaluate stable Pb isotope signatures as a tracer for Pb contamination in Lake Andong. For Pb isotope analysis, we collected water and sediment from Lake Andong, particles in the air, soils, and stream water, mine tailings, sludge and wastewater from zinc smelting around lake Andong watershed. The results showed that Pb isotope ratios (Pb/Pb, Pb/Pb, and Pb/Pb)...

The observed imbalance between the unsustainable consumption of available natural metal resources and finite deposits makes recovery recycling metals from metal-containing wastes an imperative. Here, ionic-liquid-based aqueous biphasic systems (IL-based ABSs) are proposed as efficient alternative for selective real copper acid mine drainage (AMD) effluents. ABSs composed different ILs Na?SO? we...

Concentrations of Pb, Cd, Cu, Zn, Cr and Ni in soybean (Glycine max L.) grown near the Dabaoshan Mine were investigated, and their potential risk to the health of inhabitants was estimated. In the Fandong (FD) and Zhongxin (ZX) villages, which are near the Dabaoshan mineral deposit, concentrations of Pb (0.34 mg kg−1 for FD), Cd (0.23 mg kg−1 for ZX) and Cr (1.14 and 1.75 mg kg−1 for FD and ZX,...

St. Kevin Gulch, a headwater stream of the Rocky Mountains of Colorado, receives acid mine drainage that maintains low pH, high concentrations of heavy metals, and high rates of metal hydroxide deposition. An acidtolerant alga, Ulothrix sp., is present below the source of mine drainage in St. Kevin Gulch, but its biomass is limited by the deposition rates of iron hydroxides, which are especiall...

Super-Secondary structure elements (super-SSEs) are the structurally conserved ensembles of secondary structure elements (SSEs) within a protein. They are of great biological interest. In this work, we present a method to formally represent and mine the sequence order independent super-SSE motifs that occur repeatedly in large data sets of protein structures. We represent a protein structure as...