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301
Mercury and Methyl Mercury in Sediments of Northern Lakes-Egypt
"... Fifty-four sediment samples of the five Northern Egyptian lakes, (Mariout, Edku, El-Burullus, El-Manzallah, and El-Bardaweel) were analyzed to investigate the pollution status of mercury (Hg). The total mercury (T-Hg) content in sediment samples ranged from 15.33 to 171.29 ng·g–1 dry wt). The result ..."
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). The results showed that T-Hg were lower than the back ground values reported and also lower than the ranges of uncontaminated sediments. Moreover, the T-Hg concentra-tions in all sediments were under the upper chemical Exceedance level (1 µg·g–1). The concentrations of Methyl mer-cury (MeHg) in surface
Distribution of Total Mercury and Methyl Mercury in Water, Sediment, and Fish
, 1997
"... Abstract. Concentrations of total mercury and methyl mercury were determined in sediment and fish collected from estuarine waters of Florida to understand their distribution and partition-ing. Total mercury concentrations in sediments ranged from 1 to 219 ng/g dry wt. Methyl mercury accounted for, o ..."
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Abstract. Concentrations of total mercury and methyl mercury were determined in sediment and fish collected from estuarine waters of Florida to understand their distribution and partition-ing. Total mercury concentrations in sediments ranged from 1 to 219 ng/g dry wt. Methyl mercury accounted for
Determination of methyl mercury in dental-unit wastewater
, 2002
"... Objective. The objective of this investigation was to establish whether monomethyl mercury (MMHg) is present in dental-unit wastewater and if present, to determine the concentration relative to total mercury. Methods. Wastewater samples were collected over an 18-month period from three locations: at ..."
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.74) for the 30-chair facility, and 26.77 mg/l (n 13; SD 34.50) for 107-chair facility. By way of comparison, the MMHg levels for the open ocean, lakes and rain are orders of magnitude lower than methyl mercury levels seen in dental wastewater (part per billion levels for dental wastewater samples compared
Laboratory Investigations Effects of Lead, Mercury, and Methyl Mercury on Gap Junctions and
, 1997
"... Abstract. Heavy metals such as lead (Pb), mercury (Hg), and methyl mercury (MeHg) impair cell functions. For bone it is known that Pb changes bone formation rates, which depend on intracellular free calcium concentration ([Ca2+]i). Since heavy metals compete with Ca2+ at multiple sites and increased ..."
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Abstract. Heavy metals such as lead (Pb), mercury (Hg), and methyl mercury (MeHg) impair cell functions. For bone it is known that Pb changes bone formation rates, which depend on intracellular free calcium concentration ([Ca2+]i). Since heavy metals compete with Ca2+ at multiple sites
Environmental Medicine | Articles Methyl Mercury and Inorganic Mercury in Swedish Pregnant Women and
"... We studied exposure to methyl mercury (MeHg) in Swedish pregnant women (total mercury [T-Hg] in hair) and their fetuses (MeHg in cord blood) in relation to fish intake. The women were recruited at antenatal care clinics in late pregnancy to participate in an exposure study of environmental pollutant ..."
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We studied exposure to methyl mercury (MeHg) in Swedish pregnant women (total mercury [T-Hg] in hair) and their fetuses (MeHg in cord blood) in relation to fish intake. The women were recruited at antenatal care clinics in late pregnancy to participate in an exposure study of environmental
615.9:547.25.49 POISONING BY METHYL MERCURY COMPOUNDS1
, 1940
"... ORGAOTO compounds of mercury were first used in chemical researoh in 1863, in therapeutics in 1887, and in the manufacture of seed dressings in 1914. Those with hydrocarbon groups of low molecular weight have been found the most toxio, and the only cases of poisoning recorded in man have been due to ..."
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to methyl derivatives. Frankland and Duppa (1863) used di-methyl mercury in the course of some research work undertaken at St. Bartholomew's Hospital to determine the valency of metals and metallic compounds, and two laboratory techni-cians engaged in this work developed symptoms of poisoning and died
Modulation of vasodilator response via the nitric oxide pathway after acute methyl mercury chloride exposure
- in rats,” BioMed Research International, vol. 2013, Article ID 530603
"... Mercury exposure induces endothelial dysfunction leading to loss of endothelium-dependent vasorelaxation due to decreased nitric oxide (NO) bioavailability via increased oxidative stress. Our aim was to investigate whether acute treatment with methyl mercury chloride changes the endothelium-depende ..."
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Mercury exposure induces endothelial dysfunction leading to loss of endothelium-dependent vasorelaxation due to decreased nitric oxide (NO) bioavailability via increased oxidative stress. Our aim was to investigate whether acute treatment with methyl mercury chloride changes the endothelium
Research Article Modulation of Vasodilator Response via the Nitric Oxide Pathway after Acute Methyl Mercury Chloride Exposure in Rats
"... Copyright © 2013 S. Omanwar et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Mercury exposure induces endothelial dysfunction l ..."
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leading to loss of endothelium-dependent vasorelaxation due to decreased nitric oxide (NO) bioavailability via increased oxidative stress. Our aim was to investigate whether acute treatment with methyl mercury chloride changes the endothelium-dependent vasodilator response and to explore the possible
Cytogenetic damage related to low levels of methyl mercury contamination in the Brazilian Amazon
- An. Acad. Bras. Cienc
, 2000
"... The mercury rejected in the water system, from mining operations and lixiviation of soils after deforesta-tion, is considered to be the main contributors to the contamination of the ecosystem in the Amazon Basin. The objectives of the present study were to examine cytogenetic functions in peripheral ..."
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The mercury rejected in the water system, from mining operations and lixiviation of soils after deforesta-tion, is considered to be the main contributors to the contamination of the ecosystem in the Amazon Basin. The objectives of the present study were to examine cytogenetic functions
Results 1 - 10
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301
