نتایج جستجو برای: mercury level

تعداد نتایج: 1117774  

Journal: :محیط شناسی 0
کامران الماسیه دانشجوی کارشناسی ارشد محیط زیست دانشگاه کردستان شهرام کبودوندپور استادیار گروه محیط زیست دانشکدة منابع طبیعی دانشگاه کردستان

previous studies showed that the level of total mercury (thg) in sanandaj gheshlagh reservoir (sgr) water is higher than those limits established by who (i.e., 1 µg/l). therefore a research project to evaluate the level of total mercury in sgr sediments and benthos masses during july to december 2009 from three different sites with different depths (2 to 30 meters) was carried out. samples were...

Journal: :مجله دانشکده دندانپزشکی اصفهان 0
مجید اکبری فاطمه ولایتی مقدم امیر احمدی majid akbari fatemeh velayati moghadam amir ahmadi

introduction: dentists are exposed to mercury vapor from dental amalgam in their routine occupational practice; excess exposure to mercury is harmful. the aim of this study was to assess the influence of some possible related factors on the urine mercury levels of general dentists and restorative specialists in mashhad in 2010. materials and methods: this cross-sectional study was performed ran...

Journal: :زیست شناسی جانوری تجربی 0
کبری ایاسه دانشجوی کارشناسی ارشد محیط زیست، دانشکده منابع طبیعی و کویرشناسی رسول زمانی احمد محمودی استادیار گروه شیلات و محیط زیست، دانشکده منابع طبیعی و علوم زمین، دانشگاه شهرکرد فاطمه شهبازی دانشجوی کارشناسی ارشد محیط زیست، دانشکده منابع طبیعی و کویرشناسی، دانشگاه یزد حمید سودائی زاده استاد یار گروه مدیریت مناطق خشک و بیابانی، دانشکده منابع طبیعی و کویر شناسی، دانشگاه یزد

abstract studies have shown that birds due to being in the high trophic levels on the ecosystems, and also high sensitivity to toxic substances are a useful indicator for the evaluation of mercury pollution. the objective of the present study was to evaluate mercury level in the feathers of turdus philomelos and turdus merula in khanikan forests as an indicator of mercury contamination. to atta...

Background and Aim: Amalgam is used in dentistry cautiously, due to the toxicity of mercury in dental amalgam. Dentists are exposed to mercury vapor in their routine occupational practice, which can be harmful to their health. The aim of the present study was to measure urinary mercury concentrations in general dentists and restorative specialists in Mashhad in 2010. Materials and Methods: This...

Journal: :journal of pharmaceutical and health sciences 0
parisa ziarati pharmaceutical sciences branch, islamic azad university fatemehsadat mirmohammad makki department of food science & technology, science and research branch, islamic azad university, tehran-iran

severe discharge of sewage and industrial effluents into the persian gulf leads to the deposition of various types of heavy metals, especially lead and mercury, in the muscles of fish. total mercury and methylmercury contents were determined in the edible parts (muscle tissue, fillet) of two different most popular frozen fish species from the persian gulf to ascertain whether the concentrations...

The purpose of this study was to monitor the concentrations of mercury in the edible muscle, gill, liver, and skin of common carp (Cyprinus carpio) and silver carp (Hypophthalmichthys molitrix), in the Sanandaj Gheshlagh Reservoir, Iran. Mercury concentrations were assayed using Shimadzu AA 6600 atomic absorption spectrophotometer, and the results were given as µg/g wet weight. The level of mer...

Severe discharge of sewage and industrial effluents into the Persian Gulf leads to the deposition of various types of heavy metals, especially lead and mercury, in the muscles of fish. Total mercury and methylmercury contents were determined in the edible parts (muscle tissue, fillet) of two different most popular frozen fish species from the Persian Gulf to ascertain whether the concentrations...

ژورنال: طب کار 2019

Introduction: dentists are exposed to mercury vapor due to occupational exposure to amalgam Which can endanger their health. the aim of this study was to measure the concentration of urinary mercury in dental students and the restorative specialists one of the dental schools in Iran in order to determine the effect of mercury vapor on them. Methods: The study population Including 40 dental stu...

Journal: :محیط شناسی 0
مهدی خوشناموند دانشجوی کارشناسی ارشد محیط زیست دانشکدة منابع طبیعی دانشگاه کردستان شهرام کبودوندپور استادیار گروه محیط زیست دانشکدة منابع طبیعی دانشگاه کردستان فرزاد غیاثی استادیار گروه شیلات دانشکده منابع طبیعی دانشگاه کردستان بهمن بهرام نژاد استادیار بخش بیوتکنولوژی گروه زراعت دانشکدة کشاورزی دانشگاه کردستان

a research project was designed to compare the level of accumulated mercury in common and silver carp muscle tissues from sanandaj gheshlagh dam. these fish were the most consumed fish in the region. during july to december 2009, forty eight samples of these species were randomly caught (24 samples each). total mercury in muscle tissues was measured by advanced mercury analyzer (model, leco 254...

Journal: :iranian journal of pathology 2008
amitis ramezani ali eslamifar latif gachkar zahra pournasiri mohammad banifazl

abstract background and objective: there have been concerns over possible association between mercury and neurodevelopmental outcomes in infants. in this study we aimed to determine whether blood levels of mercury are above safe values in iranian infants or not. materials and methods:  a total of 85 infants (0, 2, 4 and 6 months old) were enrolled in this study. all of them received vaccines ac...

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