نتایج جستجو برای: pb and cd
تعداد نتایج: 16839860 فیلتر نتایج به سال:
We examined the interrelationships between phenotype of hepatic cytochrome P450 2A6 (CYP2A6), nephropathy, and exposure to cadmium and lead in a group of 118 healthy Thai men and women who had never smoked. Their urinary Cd excretion ranged from 0.05 to 2.36 microg/g creatinine, whereas their urinary Pb excretion ranged from 0.1 to 12 microg/g creatinine. Average age and Cd burden of women and ...
The activity of delta-aminolevulinate dehydratase (ALAD) of erythrocytes, the lead (Pb-B) and cadmium (Cd-B) concentration in whole blood, the content of reduced glutathion (GSH) in erythrocytes, and the regeneration rate of GSH by intact erythrocytes were measured during an epidemiological survey of 84 men employed in a Belgian cadmium and lead producing plant. A control group of 26 persons (s...
Water and sediment samples were collected from six different stations, located along the Nil River between February and June 2015. Concentrations of cadmium, lead, zinc, and copper were determined. The extent of the sediment pollution was assessed, using the multiple pollution indices, namely contamination factor (CF), pollution load index (PLI), and the geoaccumulation index (Igeo). The result...
anzali wetland is one of the most important aquatic ecosystems of iran located at southwest of the caspian sea. this wetland is a habitat for valuable fish with vital role in life cycle of this ecosystem. assessment of pollutants concentration is rational due to complications of determining biological effects in a habitat. the present study examined the concentration of lead (pb) and cadmium (c...
dry and wet atmospheric depositions as well as urban surface soil samples were collected in eight different land use zones (during 2010) of the most important and largest industrial city, southwest iran for determining cadmium, chromium, lead and zinc. the average of cd, cr, pb and zn concentrations in the study area for wet precipitation were 17.8 μg/l, 49.97 μg/l, 2.31 μg/l, and 0.53 μg/l, re...
Background and Objective: Limited water resources in arid and semi-arid regions are one of the major limiting factors in agricultural production. Thus, unconventional water resources, such as urban treated wastewater, may be used for irrigation. Application of wastewater to the soil may cause accumulation of heavy metals (HMs). Soil pollution causes uptake of these metals by plants and their en...
background: heavy metals contaminated environment constitutes a serious problem for human and other organisms. moreover, metals such as cd, pb, and cr are toxic metals. therefore, the purpose of this study was to evaluation of cd, pb, and cr in the muscle of cow, calf, and sheep slaughtered in sanandaj city from iran. methods: this was a descriptive cross-sectional study in sanandaj city in nov...
To investigate the characteristics and potential sources of heavy metals pollution, surface sediments collected from Bohai Bay, North China, were analyzed for the selected metals (Cd, Cr, Cu, Ni, Pb, and Zn). The Geoaccumulation Index was used to assess the level of heavy metal pollution. Pb isotopic compositions in sediments were also measured to effectively identify the potential Pb sources. ...
Concentration of heavy and toxic metals Cu, Zn, Cd, Pb and Hg were determined in liver and muscles of Rutilus frisii kutum and their relationships with growth parameters (length, age, condition factor) and hepatosomatic index were examined. Thirty-six fish samples were collected from February through March 2009 caught by beach seine in the southwest parts of the Caspian Sea. Atomic ab...
Roels, H. A., Buchet, J. P., Lauwerys, R. R., and Sonnet, J. (1975). British JournalofIndustrial Medicine, 32, 181-192. Comparison of in vivo effect of inorganic lead and cadmium on glutathione reductase system and 8-aminolevulinate dehydratase in human erythrocytes. The activity of 8-aminolevulinate dehydratase (ALAD) of erythrocytes, the lead (Pb-B) and cadmium (Cd-B) concentration in whole b...
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