نتایج جستجو برای: mercury metal

تعداد نتایج: 236533  

Journal: :Journal of immunology 2008
Jaya Vas Jochen Mattner Stewart Richardson Rachel Ndonye John P Gaughan Amy Howell Marc Monestier

The development of autoimmune diseases is frequently linked to exposure to environmental factors such as chemicals, drugs, or infections. In the experimental model of metal-induced autoimmunity, administration of subtoxic doses of mercury (a common environmental pollutant) to genetically susceptible mice induces an autoimmune syndrome with rapid anti-nucleolar Ab production and immune system ac...

Journal: :Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association 2001
S Aymaz O Gross B Krakamp M Ortmann H P Dienes M Weber

Mercury is a silvery white liquid metal that is volatile at room temperature due to its high vapour pressure. It exists in different oxidation states and can form a number of compounds. Mercury and its compounds can be absorbed into the human body by inhalation, ingestion, and through the skin. It is toxic when certain threshold values are exceeded. Acute toxicity is due to the inactivation of ...

Journal: :iranian journal of toxicology 0
مهدی بنایی mahdi banaee department of aquaculture, behbahan khatam alanbia university of technology., khuzestan, iran آمال بیت سیاح amal beitsayah behbahan khatam alanbia university of technology, khuzestan, iran. ایثار جورابدوز isar jorabdoz behbahan khatam alanbia university of technology, khuzestan, iran.

background: aquatic ecosystems are frequently subjected to contamination by toxic heavy metals and pesticides, yet very little is known about the influence of pesticides on bioaccumulation of heavy metals in aquatic organisms. mercury is a toxic metal with no known biological benefit to organisms. bioavailability of mercury in aquatic environments depends on biological and non-biological parame...

ژورنال: بوم شناسی آبزیان 2013
Pazooki, Jamileh , Razaghi, Marizeh , Savari, Ahmad , Shokri, Mohammad Reza ,

The toxicity of heavy metals in sediments of the Nayband Bay and Asaluyeh region and potential ecological risk to sediment organisms assessed. Three stations with different degrees of vulnerability of South Pars Oil and Gas Activities (1: Control - 2: medium affected and 3: severely affected) were selected in the study area. Sediment sampling at each station in both cold and hot seasons (2010) ...

1996
Jose H. Santos Malcolm R. Smyth Rosario Blanc

The advent of stripping voltammetry has improved the performance of analytical voltammetry to a considerable extent.1 The enhanced sensitivity and lower detection limits can be achieved in this technique by enrichment of the analyte prior to voltammetric determination. The common enrichment processes include reduction of metal ions through formation of metal films or amalgams, reductive or oxid...

2014
Jun Ke Xinyong Li Qidong Zhao Yang Hou Junhong Chen

Mercury is one of the most acutely toxic substances at trace level to human health and living thing. Developing a rapid, cheap and water soluble metal sensor for detecting mercury ions at ppb level remains a challenge. Herein, a metal sensor consisting of MPA coated Mn doped ZnSe/ZnS colloidal nanoparticles was utilized to ultrasensitively and selectively detect Hg(2+) ions with a low detection...

Journal: :iranian journal of toxicology 0
سید محمود قاسم پوری seyed mahmoud ghasempouri department of environment, faculty of natural resources and marine sciences, tarbiat modares university, nour, iran نرجس اوکاتی narjes okati department of environment, faculty of natural resources, zabol university,zabol , iran عباس اسماعیلی ساری abbas esmaili-sari department of environment, faculty of natural resources and marine sciences, tarbiat modares university, nour, iran

background: mercury (hg) is a hazardous metal responsible for environmental contamination and human intoxication. methyl mercury bio-accumulation through food chain can be responsible for chronic mercury exposure of south caspian sea communities with a diet rich in fish. uncertainties about exposure levels that could have damaging consequences for nervous system development of infants makes bio...

2014
Matthew A. Davis Diane Gilbert-Diamond Margaret R. Karagas Zhigang Li Jason H. Moore Scott M. Williams H. Robert Frost

BACKGROUND A growing body of evidence suggests that exposure to toxic metals occurs through diet but few studies have comprehensively examined dietary sources of exposure in US populations. PURPOSE Our goal was to perform a novel dietary-wide association study (DWAS) to identify specific dietary sources of lead, cadmium, mercury, and arsenic exposure in US children and adults. METHODS We co...

Journal: :Journal of the American Academy of Dermatology 2000
A S Boyd D Seger S Vannucci M Langley J L Abraham L E King

Human contact with mercury has been ongoing for centuries and was previously considered a legitimate means of treating different cutaneous and systemic conditions. Toxicity from this heavy metal may occur from exposure to elemental, inorganic, and organic forms of mercury. This article outlines the signs and symptoms of mercury poisoning and the different clinical conditions with assorted cutan...

Journal: :Environmental Health Perspectives 1998
W C Holton

Mercury pollution is a persistent and increasing problem in the environment. Along with some natural sources of the metal, major man-made sources of mercury pollution include incinerators, fossil fuel plants, and municipal sewage systems. The EPA estimated that in 1989, approximately 643,000 kg of mercury was discarded as municipal solid waste, with 84% of it landfilled.

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