An increased worldwide usage of platinum group elements (PGE) has been observed during recent decades. high amounts of PGE are applied in such areas as chemical industry and jewellery production, but the increased demand for these metals primarily depends on the introduction of automobile catalytic converter systems. Catalytic converters have also been considered to be a major source of PGE pol...

Introduction: Although chondrites are among the most primitive materials accessible to us, their chemical compositions are highly variable among groups of chondrites, reflecting several fractionation processes including condensation and accretion processes in the early solar system. Considering that CI chondrites represent a solar system standard in the elemental abundance [1] and that calcium ...

Accumulation of platinum group elements (PGEs) in the environment has been increased over the time. Catalytic converters of modern vehicles are considered to be the main sources of PGE pollution, since the correlation is between the Pt:Rh ratios in various environmental compartments and in converter units. The present literature survey shows that the concentration of these metals has increased ...

The prevalence of asthma and allergies often observed in urban metropolitan areas as compared to rural and farm communities is still an enigma. Westernized life styles, type of farming and exposure to environmental pollutants seem to simultaneously interact in the determination of this phenotype in genetically predisposed individuals. In this scenario, we asked whether and to what extent we cou...

Platinum group elements (PGE: Ru, Rh, Pd, Os Ir, Pt) are rare metals with low abundance in the continental crust. The of palladium subgroup PGE (PPGE: Pt, Rh) have been exploited more and over last thirty years for their physicochemical properties such as high melting point, resistance to corrosion, mechanical strength ductility. This led emerging environmental contamination different media air...