نتایج جستجو برای: zn smelter
تعداد نتایج: 39743 فیلتر نتایج به سال:
Background and aims: Biological monitoring plays an important role in occupational exposure assessment. The aim of present study was to assess Manganese-Iron Ratio (MIR) as a potential biomarker for manganese. Methods: This cross-sectional study was carried out in an automotive parts manufacturing industry in Tehran, Iran. 31 ferroalloy smelters as exposed group (cases) and 30 office workers...
δ13C and δ15N were analyzed in the leaves of Pinus sylvestris L. Betula spp. under conditions severe heavy metal (Zn, Cu, Cd, Pb) contamination. Twenty-seven plots located near Karabash copper smelter (Russia) studied. No reliable correlation 13C tree with level pollution was observed. δ15N, both spp., increased similarly polluted areas. by 2.3‰ needles 1.6‰ compared to background ones. The pro...
In our study we showed the importance of holistic approach to evaluation of chemical stabilization using phosphate amendments, where all aspects of chemical treatments were observed. An extensive evaluation of metal stabilization in contaminated soil and an evaluation of the leaching of phosphorus induced after treatment were performed. The soil from the former zinc smelter area in the Celje re...
A study was established near a former Zn and Pb smelter to test the ability of soil amendments to reduce the availability of Pb, Zn, and Cd in situ. Soil collected from the field was amended in the lab with P added as 1% P-H3PO4, biosolids compost added at 10% (referred to hereafter as "compost"), and a high-Fe by-product (referred to hereafter as "Fe") + P-triple superphosphate (TSP) (2.5% Fe ...
The methylation-demethylation processes in sediments of the Deûle River were determined using well-established isotope experiments. For this purpose, species-specific isotopically enriched tracers in the form of inorganic mercury IHg ((199)Hg) and methylmercury MeHg (Me(201)Hg) were used to determine Hg dynamics in the Deûle River. Sediment cores were collected at two sampling locations chosen ...
A field of growing interest in environmental health is that of lead speciation, the study of the various chemical forms of lead. Different lead compounds have different solubilities, which in turn affect bioavailability. Descriptions of lead exposure such as concentrations in air or settled dust are telling quantities, but can only relate part of the story. A variety of biological and geochemic...
this study was aimed to investigate the effects of environmental pollution with heavy metals from ferro-nickel smelter on aminolevulinic acid dehydratase (alad) activity, and to analyze the blood lead level of feral pigeon ( columba livia ) in ferro-nickel smelter courtyard in drenas city, republic of kosovo. for this purpose, twenty specimens of feral pigeon (20 birds, males and females), were...
A field of growing interest in environmental health is that of lead speciation, the study of the various chemical forms of lead. Different lead compounds have different solubilities, which in turn affect bioavailability. Descriptions of lead exposure such as concentrations in air or settled dust are telling quantities, but can only relate part of the story. A variety of biological and geochemic...
Metals have been used by humans for thousands of years, and this has resulted in increased concentrations in the biosphere. The environment around pointsources, such as mines and smelters, are of particular concern, as metals may accumulate to high concentrations, and potentially reach levels toxic to the local flora and fauna. This thesis focuses on the effects on pied flycatcher populations o...
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