نتایج جستجو برای: toxic metals
تعداد نتایج: 135892 فیلتر نتایج به سال:
Exposure to toxic metals has become an increasingly recognized source of illness worldwide. Both cadmium and arsenic are ubiquitous in the environment, and exposure through food and water as well as occupational sources can contribute to a well-defined spectrum of disease. The symptom picture of arsenic toxicity is characterized by dermal lesions, anemia, and an increased risk for cardiovascula...
Citation: Hauton C, Brown A, Thatje S, Mestre NC, Bebianno MJ, Martins I, Bettencourt R, Canals M, Sanchez-Vidal A, Shillito B, Ravaux J, Zbinden M, Duperron S, Mevenkamp L, Vanreusel A, Gambi C, Dell’Anno A, Danovaro R, Gunn V and Weaver P (2017) Identifying Toxic Impacts of Metals Potentially Released during Deep-Sea Mining—A Synthesis of the Challenges to Quantifying Risk. Front. Mar. Sci. 4...
Microbe-metal interactions in aquatic environments and their exact role in transport and transformations of toxic metals are poorly understood. This paper will briefly review our understanding of these interactions. Ongoing research in Lake Chapala, Mexico, the major water source for the City of Guadalajara, provides an opportunity to study the microbiological aspects of metal-cycling in the wa...
Contamination of toxic metals in the aquatic environment is one of the most debated problems in the world with industrial development. Thus, the minimization and recovery of harmful pollutants such as heavy metals in natural environment is very significant [1]. Various treatment technologies such as ion exchange, precipitation, ultrafiltration, reverse osmosis and electrodialysis have been used...
Airborne particulate matter (PM10 ) was collected from the atmosphere of the city of Isfahan. The concentration of heavy metals and anions associated with airborne particulate matter were determined using atomic absorption spectrometric and ion chromatographic techniques. A comparison was made between the variation in the concentration of PM10 and that for heavy metals and...
Levels of cadmium, chromium, lead, copper, manganese and zinc in city rabbits were determined to evaluate the edibility of the meat. Mean concentrations of toxic metals were 0.011 mg/kg for cadmium and 0.037 mg/kg for lead. Cadmium and lead concentrations were below the admissible maximum levels set by the EU. Concentrations of toxic metals in the meat were sufficiently low as to assume that co...
Aquatic macrophytes are unchangeable biological filters and they carry out purification of the water bodies by accumulating dissolved metals and toxins in their tissue. In view of their potential to entrap several toxic heavy metals, 45 macrophytes belonging to 8 families collected from two different physiographic locations (36 from Sevan Lake, Armenia; 9 from Carambolim Lake, Old Goa, India) w...
background: toxic and hazardous heavy metals like arsenic, lead, mercury, zinc, chromium and iron are found in a variety of personal care products, e.g. lipstick, whitening toothpaste, eyeliner and nail color. the nails absorb the pigments of nail polishes and vaporized or soluble metals can easily pass it. the goal of this survey was to assess whether the different colors of nail polishes comp...
Human civilization and concomitant increase in industrial activity have gradually influenced in redistribution of many toxic metals form the earth’s crust to the surrounding environment resulting in exposure of human population. Among different toxic elements, heavy metals, lead in particular, have high prevalence in the environment. Understanding of lead toxicity has advanced substantially ove...
Metals have been used in clinical practice for hundreds of years and for a variety of indications. Although potent agents whose activity may be adapted by manipulation of their chemistry and that of associated ligands, their use has been limited by toxic effects. There is now a burgeoning series of delivery technologies available which may be adapted to the administration of metal based drugs. ...
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