نتایج جستجو برای: exposure to concentrations around 40

تعداد نتایج: 10780847  

Journal: :Journal of Infrared, Millimeter, and Terahertz Waves 2019

Journal: :Environmental pollution 2012
A L Bryan W A Hopkins J H Parikh B P Jackson J M Unrine

Birds attracted to nest around coal ash settling basins may expose their young to contaminants by provisioning them with contaminated food. Diet and tissues of Common Grackle (Quiscalus quiscala) nestlings were analyzed for trace elements to determine if nestlings were accumulating elements via dietary exposure and if feather growth limits elemental accumulation in other tissues. Arsenic, cadmi...

Journal: :Occupational and environmental medicine 1996
B H Alexander H Checkoway C van Netten C H Muller T G Ewers J D Kaufman B A Mueller T L Vaughan E M Faustman

OBJECTIVE To evaluate the effects of recent and long term occupational lead exposure on indicators of male reproductive health. METHODS In a cross sectional study of male employees of a lead smelter (n = 2469), blood samples were obtained from 152 workers including 119 who also provided semen samples. Semen analysis and serum concentrations of testosterone, follicle stimulating hormone, and l...

2016
Manny Mathuthu Caspah Kamunda Morgan Madhuku

Mining is one of the major causes of elevation of naturally-occurring radionuclide material (NORM) concentrations on the Earth's surface. The aim of this study was to evaluate the human risk associated with exposure to NORMs in soils from mine tailings around a gold mine. A broad-energy germanium detector was used to measure activity concentrations of these NORMs in 66 soil samples (56 from fiv...

2016
Brian Thomas Pavilonis Patrick T. O'Shaughnessy

Chapter II describes results from 197 rural households that were sampled over five continuous days for indoor and outdoor PM10, PM2.5, and endotoxin. Geometric mean indoor concentrations of PM10 and PM2.5 (21.2 μg m, 12.2 μg m) were larger than outdoor concentrations (19.6 μg m, 8.2 μg m; p =0.072, p<0.001), while geometric mean endotoxin levels were almost six times larger in outdoor air compa...

ژورنال: سلامت کار ایران 2011
سلیمانی, اسماعیل, نقاب, مسعود,

  Background and Aims Ethylene oxide is used as a sterilizing agent in health care industries. The present study aimed to assess and recognize the nature of pulmonary reactions, if any, associated with occupational exposure to ethylene oxide and to investigate the prevalence of dermal, visual, neurologic, reproductive, hematologic, hepatic and renal disorders .   Methods  Forty exposed and 47 u...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان - دانشکده زبانهای خارجی 1390

apart from other aspects, desert is a natural environment and is one of the appealing terrestrial elements. putting its symbolic and fictional senses aside, the term “desert” bears mystic sense more than material sense. in addition to the worlds materialistic experiences, desert has attracted the attention of writers because it creates a kind of inner experience, which returns the individual in...

A. Begum, A. Islam, J. Ferdous,

Background: The concentrations and distributions of natural and anthropogenic radioactive materials in soils of the site of Rooppur Nuclear Power Plant (RNPP) were investigated with the aim of evaluating the environmental radioactivity and radiation hazard. Materials and Methods: Soil samples were collected from 40 locations in and around the proposed site of Rooppur Power Plant and determined ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه دانشهای بنیادی (مرکز تحقیقات فیزیک نظری و - پژوهشکده علوم نانو 1392

among the low–dimensional allotropes of carbon, nanotubes and graphene have attracted very much attention from nano–science and nanotechnology specialists. they have been proposed as building blocks in nanometer device engineering. however, these structures are not defect–free. in this thesis, we focused on defective carbon nanotubes and graphene, and studied the effect of couple of very common...

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