A large volume of waste mercury chloride catalyst (HgCl2) is generated by calcium carbide-based polyvinyl chloride production in China, which accounts for 30% of global mercury consumption. However, there are few studies on the leaching behavior and risk control of waste catalyst where mercury is in the form of HgCl2, which is more soluble than metal mercury and poses great threat to human heal...

In regions affected by artisanal and small-scale gold mining (ASGM), the inhalation of mercury vapor and the ingestion of fish contaminated with this metal constitute the main sources of mercury contamination that affect human health. Nevertheless, according to the World Health Organization, another source of contamination is polluted water. Although mercury in freshwater is usually found in ve...

Many patients attribute their health problems to amalgam and other dental metals. In genetically susceptible indviduals, mercury and gold may function as haptens and elicit allergic and autoimmune reactions. The frequency of metal-induced lymphocyte responses was examined in 3,162 patients in three European laboratories using MELISA(R), an optimized lymphocyte proliferation test. The patients s...

Electrochemical methods of analysis are of practical advantage in many areas. These include use for determining relevant values in trace-metal pollution studies and remediation; understanding the roles these metals play in biological systems and medicine; characterising materials in the microelectronics industry; developing new energy technologies; and even in fields such as archaeology and for...

We determined total and methyl mercury contents in soil, three earthworm species and their vomitus to study the species-specific differences of mercury bioconcentration in Huludao City, a heavily polluted region by chlor-alkali and nonferrous metal smelting industry in Liaoning Province, northeast China. Total and methyl mercury contents were 7.20 mg/kg and 6.94 ng/g in soil, 1.43 mg/kg and 43....

The present study is aimed at assessing the ability of Pseudomonas sp. AN29 to uptake Hg from the metal contaminated environment. The minimum inhibitory concentration (MICs) of Hg was 500 μg/ml. Pseudomonas sp. AN29 could tolerate Pb (600 g/ml), Cu (200 g/ml), Cd (50 g/ml), Zn (50 g/ml), Ni (550 g/ml) and Cr (150 g/ml). The isolate showed typical growth curve but phases (lag and log) exte...

The variations in size and spatial and temporal variations in concentrations of toxic metals (cadmium, mercury, and lead) in oyster tissues were studied. Samples were collected at monthly intervals over a 1-year period from three locations along the southern coast of Oman (Mirbat, Hadbeen, and Sadah). Cadmium and lead were analyzed using an inductively coupled plasma atomic emission spectromete...

background: mercury (hg) is considered a global pollutant because hg0 which is the predominant form of atmospheric hg resides in the atmosphere for as long as 0.5 to 2 years. mercury has many negative effects on the reproductive, respiratory, and immune systems. methods: in this study, 24 caspian lampreys (caspiomyzon wagneri) were transported to the university laboratory and then stored in -20...

Voltammetric studies of rabbit liver metallothioneins (MTs) adsorbed onto thin mercury films preformed onto glassy carbon electrodes were carried out in MT-free phosphate buffers in an attempt to shed light on the possible redox-modulated MT metal-transfer processes. The redox behavior of the surface-confined MTs was studied by cyclic voltammetry and differential pulse voltammetry, and the amou...