Results 251 to 260 of about 236,959 (307)
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Trace element deficiency and toxicity
Current Opinion in Clinical Nutrition and Metabolic Care, 1998Trace elements are involved in enzymatic activities, immunological reactions, physiological mechanisms and carcinogenesis. Deficiency in some trace elements, such as iron and iodine, is still an important health problem, especially in developing countries. Some groups of individuals are more likely to develop trace element deficiency. The role of trace
Van Gossum, André, Neve, Jean
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Analysis of food for toxic elements
Analytical and Bioanalytical Chemistry, 2007The levels of the toxic elements Al, As, Cd, Hg, Pb and Sn are routinely monitored in food to protect the consumer. Increasingly, the chemical forms of As and Hg are also monitored. Analyses are performed to enforce regulatory standards and to accumulate background levels for assessing long-term exposure.
Stephen G, Capar +2 more
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Partitioning and transformation behavior of toxic elements during circulated fluidized bed combustion of coal gangue [PDF]
Fuel, 2014 A study on toxic elements behaviors from a 330 MW coal gangue circulated fluidized bed co-combustion power plant equipped with electrostatic precipitators (ESPs) was performed.
Chuncai Zhou +2 more
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Nature, 1970
THE soils over serpentine rocks are renowned for their barrenness, the causes of which vary enormously because the term “serpentine” embraces a wide variety of soil types. Sometimes, for a variety of reasons, these soils are very toxic to certain plants.
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THE soils over serpentine rocks are renowned for their barrenness, the causes of which vary enormously because the term “serpentine” embraces a wide variety of soil types. Sometimes, for a variety of reasons, these soils are very toxic to certain plants.
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Toxic element contaminations of prenatal vitamins
Toxicology and Applied Pharmacology, 2023The detrimental effects of gestational and lactational exposure to adverse chemical agents are gathering increasing attention. In our study, the presence of toxic heavy metals in several prenatal vitamins from six brands available in supermarkets and pharmacies was measured using ICP mass spectrometry.
Zhuo, Zhang, Thomas, Kluz, Max, Costa
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Toxic elements in silicate cements
European Journal of Oral Sciences, 1979Abstract – Six brands of silicate cements have been characterized by means of optical emission spectrography with respect to the contents of elements in minor or trace quantities in a search for presence of possible toxic elements. Beryllium was observed in two powders at levels of 1.3 and 1.6%. Cadmium was found in two powders at levels of 0.02 and 0.
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Differential toxicity of potentially toxic elements to human gut microbes
Chemosphere, 2022Specific microorganisms in the human gut (i.e., gut microbes) provide mutually beneficial outcomes such as microbial balance by inhibiting the growth of pathogenic organisms, immune system modulation, fermentation of ingested products, and vitamin production.
Shiv Bolan +6 more
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Biological toxicity of lanthanide elements on algae
Chemosphere, 2010The biological toxicity of lanthanides on marine monocellular algae was investigated. The specific objective of this research was to establish the relationship between the abundance in the seawater of lanthanides and their biological toxicities on marine monocellular algae.
Peidong, Tai +4 more
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The Human Toxicity of Certain Trace Elements
Annals of Internal Medicine, 1972Abstract A review of the medical toxicology of cadmium, cobalt, selenium, arsenic, nickel, copper, manganese, tellurium, vanadium, molybdenum, zinc, and tin; emphasis is on industrial sources of in...
D B, Louria, M M, Joselow, A A, Browder
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Airborne toxic elements and organic substances
Environmental Science & Technology, 1986The Airborne Toxic Elements and Organic Substances (ATEOS) project was designed to simultaneously measure atmospheric levels of more than 50 toxic and carcinogenic chemicals within three urban population centers and one rural area. On an average and daily basis, the Newark site had the highest concentrations of individual contaminants, even though the ...
P J, Lioy, J M, Daisey
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