Background: Dental clinics are known to be one of the largest users of Toxic inorganic mercury. It is well documented that dentists and dental assistants who work with amalgam are chronically exposed to mercury vapor. This study investigates exposure to mercury vapor in a dental clinic. Methods: GBC cold vapor atomic absorption spectrometry (AAS), using sodium borohydride as the reducing age...

Three sets of experiments were carried out to determine if there is an intestinal secretory component in the fecal excretion of administered inorganic mercury. In the first set of experiments the disposition of a nontoxic 0.5-micromol/kg intravenous dose of inorganic mercury was evaluated in control rats and rats whose bile duct had been ligated. Data collected 24 h after the administration of ...

The determination of mercury(II) ions at the trace level by inhibition of the invertase enzyme-catalysed hydrolysis of sucrose into glucose and fructose coupled to electrochemical batch injection analysis was investigated using two approaches. In the first, the glucose produced was detected by injection of 100 microliters samples into the batch injection cell containing a platinum electrode mod...

The authors report a case of suicidal elemental mercury injection in the antecubital fossa, resulting in granuloma formation, which was treated with delayed resection. A 21-year-old man presented with a granuloma in the antecubital fossa after a suicide attempt by self-injection of elemental mercury. The patient was treated surgically with excision of the necrotic skin and granuloma under X-ray...

The injection of sorbents upstream of a particulate control device is one of the most promising methods for controlling mercury emissions from coal-fired utility boilers with electrostatic precipitators and fabric filters. Studies carried out at the bench-, pilot-, and fullscale have shown that a wide variety of factors may influence the mercury removal effectiveness. These factors include merc...

a 24-year-old girl injected approximately i ml of elemental mercury from a few broken thermometers to her right cubital fossa. it led to the formation of a tumoral lesion which was erythematous, lobulated, painful, with secretory sinuses in the injected area. biopsy showed foreign body granulomas with metallic mercury that appeared as dark opaque globules. x-rays showed metallic densities in th...

Recent field tests of mercury removal with activated carbon injection (ACI) have revealed that mercury capture is limited in flue gases containing high concentrations of sulfur oxides (SOx). In order to gain a more complete understanding of the impact of SOx on ACl, mercury capture was tested under varying conditions of SO2 and SO3 concentrations using a packed bed reactor and simulated flue ga...

The extensive investigations upon the mechanism by which arsenic poisons the protoplasm of cells (1, 2) and the discovery (1) that the di-thiol, 2,3-dimercaptopropanol or BAL (British AntiLewisite), possesses an avidity for Lewisite and trivalent arsenicals, thus sparing injury to the cells and their essential enzymes, led to the suggestion that the toxic action of other metals might be explain...

A 24-year-old girl injected approximately I ml of elemental mercury from a few broken thermometers to her right cubital fossa. It led to the formation of a tumoral lesion which was erythematous, lobulated, painful, with secretory sinuses in the injected area. Biopsy showed foreign body granulomas with metallic mercury that appeared as dark opaque globules. X-rays showed metallic densities i...

Minor modifications to a Coleman MAS-50A Mercury Analyser System allowed the determination of mercury by flow injection analysis. Using sample volumes of 600 mul it was possible to analyse up to 120 samples per hour, with a detection limit of 0.2 mug. l(-1) (120 pg) of mercury. The authors also report on a simple digestion procedure which replaces the time- and reagent-consuming EPA procedure, ...