نتایج جستجو برای: in particular mercury

تعداد نتایج: 16994155  

Journal: :international journal of environmental research 0

mercury is one of the most toxic heavy metals present in aquatic systems, exhibiting a complex behaviour in the environment, where it may persist for decades after the source of pollution is stopped. hence, it is important develop new techniques for its removal from the aquatic systems. in this context, a particularly promising line of research is the use of new materials capable of up taking m...

Journal: :Environmental toxicology and pharmacology 2005
Farhana Zahir Shamim J Rizwi Soghra K Haq Rizwan H Khan

Post Minamata incident there has been awareness about mercury toxicity even among the general public. Previous researches contributed a vast amount of data regarding acute mercury exposure, but gradually information about the low dose [Ninomiya, T., Ohmori, H., Hashimoto, K., Tsuruta, K., Ekino, S., 1995. Expansion of methylmercury poisoning outside minamata: an epidemiological study on chronic...

Journal: :مجله دانشگاه علوم پزشکی کرمانشاه 0
sayed bagher mortazavi associate professor in occupational health, tarbiat modarres university of medical sciences ramezan mirzae . director of hse in national petrochemical company ali khavanin assistant professor in occupational health, tarbiat modarres university of medical sciences hasan asilian assistant professor in occupational health, tarbiat modarres university of medical sciences mohsen nourshargh msc in occupational health, tarbiat modarres university of medical sciences. ardalan soleimani msc in occupational health, tarbiat modarres university of medical sciences.

introduction: chlorine gas producting by mercury cell (chlor-alkali) is one of the most widely used methods. leakage and vaporizing mercury from cells can cause occupational poisoning. mercury is the most toxic non-radioactive heavy metal ; therefore measurement of air concentration of this metal is very important. the aim of this research was measuring ambient air mercury concentration in a pe...

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: مجله دندانپزشکی 2007
حسنی طباطبائی, معصومه , شریعتی, بتول , گلبابائی, فریده ,

Background and Aim: Dental Amalgam is a common restorative material for posterior teeth. Because of Hg content in the composition of amalgam, during the handling of material, mercury may release as vapor in the environment. Excess amount of mercury vapor can cause serious health problems in dental personnel. The aim of this investigation was to determine mercury vapor concentration in working e...

اعظم بختیاریان, , زهرا فرقانی, , سحر سیادتیان, , سیما سبزه‌خواه, , صفیه محبی‌تبار, , عباس محقق, , فیروزه امامی خوانساری, , محمود قاضی خوانساری, , میرجمال حسینی, , نسرین کلانتری, ,

Background: Hypertension is a very common and important disease. There are conflicting reports about mercury, a trace element, in the genesis of hypertension.Methods: In this study we examined the relationship between blood mercury levels and hypertension prevalence in a population-based sample of hypertensive and normotensive patients at the Shariati Hospital and the Tehran Heart Center in Teh...

Journal: :Journal of Applied Mathematics and Physics 2023

Based on the kinetic theory of gases, a simple model for droplet vaporization, in particular mercury, is developed to study variation radius as function time. This agreement with more sophisticated models water, such and Kulmala model. Findings indicate that complete evaporation 1-mm-radius mercury droplet, ventilated room at normal temperatures, should take about 1.8 × 104 seconds or 5 hours. ...

Abbas Esmaili Sari, Mojtaba Shirood Najafi, Neda Khosravi, Seyed Mahmoud Ghasempouri, Sharif Joorabian Shooshtari,

Background: Mercury (Hg) is considered a global pollutant because Hg0 which is the predominant form of atmospheric Hg resides in the atmosphere for as long as 0.5 to 2 years. Mercury has many negative effects on the reproductive, respiratory, and immune systems. Methods: In this study, 24 Caspian lampreys (Caspiomyzon wagneri) were transported to the university laboratory and then stored in ...

Journal: :international journal of occupational and environment medicine 0
ma al-batanony public health and community medicine department, faculty of medicine, menoufiya university, egypt gm abdel-rasul public health and community medicine department, faculty of medicine, menoufiya university, egypt ma abu-salem public health and community medicine department, faculty of medicine, menoufiya university, egypt mm al-dalatony public health and community medicine department, faculty of medicine, menoufiya university, egypt hk allam public health and community medicine department, faculty of medicine, menoufiya university, egypt

background: with the fast growth in the market of fluorescent lamps, particularly compact fluorescent light, the associated risk of mercury exposure, which is an essential component in all types of fluorescent lamps, has received increasing public attention worldwide. even low doses of mercury are toxic. objective: to study the health consequences of occupational exposure to mercury in workers ...

2005
Philippe Grandjean Esben Budtz-Jørgensen Poul J. Jørgensen Pál Weihe

Biomarkers are often applied to assess prenatal exposure to methylmercury in research and surveillance. In a prospective study in the Faroe Islands, the main exposure biomarkers were the mercury concentrations in cord blood and maternal hair obtained at parturition. We have now supplemented these exposure biomarkers with mercury analyses of umbilical cord tissue from 447 births. In particular, ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید