Exposure to mercury vapors for an hour per working day over a period of 13 years produced in a thermometer manufacturer severe signs and symptoms of mercury poisoning. Complete disability developed insidiously over the last six months of employment. During the first two months of observation, the patient was treated in succession with three chelating agents: 2,3-dimercapto-l-propanol (BAL), D-p...

Mercury is neurotoxic, and numerous studies have confirmed its ototoxic effect. However, the diagnosis and follow-up of mercury exposure require understanding the pathophysiology of the chemical substance. Based on a systematic literature review, this study aimed to demonstrate whether mercury is ototoxic and to analyze its mechanism of action on the peripheral and central auditory system, in o...

We report the detection of three mercury-manganese stars in the Orion OB1 association. HD 37886 and BD–0 • 984 are in the approximately 1.7 million year old Orion OB1b. HD 37492 is in the approximately 4.6 million year old Orion OB1c. Orion OB1b is now the youngest cluster with known HgMn star members. This places an observational upper limit on the time scale needed to produce the chemical pec...

Mercury is a toxic heavy metal released into the environment from both natural and anthropogenic sources. It is of great interest to consumers as to whether it can cause neurological effects at low dose levels. The effects of organic mercury exposure at high levels have been demonstrated in several large-scale poisonings, particularly those in Japan and Iraq in the 1950s, ‘60s and ‘70s. These e...

introduction: chlorine gas producting by mercury cell (chlor-alkali) is one of the most widely used methods. leakage and vaporizing mercury from cells can cause occupational poisoning. mercury is the most toxic non-radioactive heavy metal ; therefore measurement of air concentration of this metal is very important. the aim of this research was measuring ambient air mercury concentration in a pe...

Methidathion, a non-systemic organophosphorous insecticide and acaricide is studied at the hanging mercury drop electrode under cathodic stripping mode by means of cyclic and square-wave voltammetry (SWV). Its electrode reaction is analyzed in the light of recent theory of cathodic stripping processes of insoluble salts of SWV. Its complex electrode mechanism is described by an electrode reacti...

We analyzed data from states that participated in the Hazardous Substances Emergency Events Surveillance (HSEES) system maintained by the Agency for Toxic Substances and Disease Registry to describe the public health consequences of mercury releases. From 1993 through 1998, HSEES captured 406 events in which mercury was the only substance released. Schools and universities, private residences, ...

In this issue (page 1439) Dr. Charles Dumont and colleagues report a substantial fall in mercury levels (as measured by the concentration of methylmercury in hair samples) from 1988 to 1993 among Crees living in the James Bay area of Quebec. Fish in hydroelectric reservoirs had been found to be contaminated with mercury and, in 1988, 14.2% of the population of the area had levels of 15.0 mg/kg ...

ed from Public Health Dispatch, MMWR, Morbidity and Mortality Weekly Report, Vol. ٥٠ Oct ١٢, ٢٠٠١ CONTRIBUTION OF ENVIRONMENTAL FACTORS TO THE RISK OF MALE INFERTILITY In creasing number of reports suggest that chemical and physical agents in the environment introduced and spread by human activity may affect male fertility in humans. The relationship between exposure to environmental agents and...