نتایج جستجو برای: mercury hygiene

تعداد نتایج: 65017  

Journal: :Irish medical journal 2009
P Casey J A Treacy

Mercury is a naturally occurring metal, one of the most toxic metals within the food chain and has a number of uses in the Irish health care sector. This paper reports on a mercury survey in Ireland with the purpose to present a picture of mercury use in health settings. The findings show 50% of health settings free of all mercury medical equipment. Mercury spills occur within 30% of health set...

ژورنال: سلامت و محیط زیست 2017

Background and Objective: Mercury (Hg) contamination in marine ecosystems is a major threat to human health in the developing countries like Iran. The main route of mercury exposure is from consumption of fish and seafood. Upon entering mercury in human bodies, Hg is converted into methyl mercury, which may lead to serious implications including neurological disorders, reproductive abnormalitie...

Journal: :Applied and environmental microbiology 2002
Harald von Canstein Ying Li Johannes Leonhäuser Elke Haase Andreas Felske Wolf-Dieter Deckwer Irene Wagner-Döbler

Mercury-contaminated chemical wastewater of a mercury cell chloralkali plant was cleaned on site by a technical-scale bioremediation system. Microbial mercury reduction of soluble Hg(II) to precipitating Hg(0) decreased the mercury load of the wastewater during its flow through the bioremediation system by up to 99%. The system consisted of a packed-bed bioreactor, where most of the wastewater'...

Journal: :Toxicology and applied pharmacology 1998
R K Zalups

Renal disposition of administered inorganic mercury was studied in rats that had undergone an acute bilateral ureteral ligation shortly before being injected with a nontoxic 0.5-micromol/kg iv dose of inorganic mercury with or without 2.0 micromol/kg glutathione (GSH) or cysteine. Ureteral ligation and induction of "stop-flow" conditions were carried out to decrease glomerular filtration rate t...

2017
Rajendra Prasad Singh Jiaguo Wu Alagarasan Jagadeesh Kumar Dafang Fu

The current study was aimed to investigate the mercury pollution in urban road runoff. A total of 34 rainfall events were monitored on 5 independent road catchments from 2015 to 2016 in Nanjing city, China. Events mean concentrations of mercury and the impact factors of mercury pollution in urban road runoff were also carried out in the current study. Results revealed that the concentration of ...

Journal: :Chemosphere 2000
D W Boening

Mercury at low concentrations represents a major hazard to microorganisms. Inorganic mercury has been reported to produce harmful effects at 5 microg/l in a culture medium. Organomercury compounds can exert the same effect at concentrations 10 times lower than this. The organic forms of mercury are generally more toxic to aquatic organisms and birds than the inorganic forms. Aquatic plants are ...

2014
Mark C. Houston

Mercury toxicity is highly correlated with hypertension, coronary heart disease (CHD), myocardial infarction (MI), stroke and other cardiovascular disease. Mercury has a high affinity for sulfhydryl (-SH) groups, which inactivates numerous enzymatic reactions, amino acids, and sulfur-containing antioxidants [NAC (n-acetyl cysteine, ALA (alpha lipoic acid), GSH (glutathione)], with subsequent de...

Journal: :journal of physical & theoretical chemistry 2008
m. reza shishehbore navid nasirizadeh a. mohammad akhoundi

mercury is quantitatively retained with 1, 5-diphenylcarbazone (dpc) on microcrystallinenaphthalene in the ph range 6.5-8.5 from a large volume of aqueous solutions of various samples.after filtration, the solid mass consisting of the mercury complex and naphthalene was dissolvedin 5.0 ml of dimethylformamide (dmf) and mercury was determined by spectrophotometricmethod at 542 nm against the rea...

Journal: :محیط شناسی 0
محسن احمدپور دانش آموخته کارشناسی ارشد، دانشگاه بیرجند علیرضا پورخباز عضو هیئت علمی گروه محیط زیست دانشگاه بیرجند سید محمود قاسمپوری عضو هیئت علمی گروه محیط زیست، دانشگاه تربیت مدرس

the aim of this study is to determine of mercury levels in various internal organs of the fereydunkenar international wetland’s birds for the first time and to determine the influence of this metal on their health. this study has been done in the fereydunkenar international wetland where is the most important wetland habitat of the central areas of hyrcanian ecosystem. fereydunkenar internation...

Journal: :Nihon eiseigaku zasshi. Japanese journal of hygiene 1998
T Mori T Hirai T Tomiyama K Iida S Miyakoshi K Sato Y Kusaka M Yanagihara K Ueda

We investigated mercury sensitization in relation to urinary and hair mercury concentrations. Patch tests were performed on 215 medical students and these tests demonstrated that 28 students were mercury-sensitized (13.0%). Life-styles were studied by questionnaire in 26 of the mercury sensitized students and 46 of the non-sensitized subjects. Urinary mercury concentrations were measured in 25 ...

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