The evasion of elemental mercury represents a significant pathway for reducing the level of this potentially toxic material in aquatic ecosystems. The evasion rate is controlled by the concentration of dissolved gaseous mercury (DGM) across the air-water interface, water, and air temperature as well as wind speed. Here we investigate the role of microbial mercury oxidation and reduction in regu...

OBJECTIVES To estimate the prevalence of mercury poisoning, to estimate the knowledge level that mercury can be a poison, and to establish the frequency of gold panning and doing retorts. DESIGN Cross sectional study. SETTING Chiweshe and Tafuna communal lands. SUBJECTS Gold panners. MAIN OUTCOME MEASURE Mercury levels in blood and urine. RESULTS Totals of 23 respondents from Chiweshe...

The highly leachable mercury contaminants of brine purification sludge (BPS) generated from the Hg-cell electrolysis process in chlorine production can be stabilized in the treatment procedure employing ferric-lignin derivatives (FLD) (Ligmet binder) and Portland cement (PC). The stabilization effectiveness has been examined by time-based multiple toxicity characteristic leaching procedure (TCL...

A procedure using an automated microwave flow digestion technique was developed and validated for the digestion of samples of certifiable color additives before mercury determination by cold vapor atomic absorption spectrometry. Recovery studies were performed by spiking most of the color additives subject to batch certification by the U.S. Food and Drug Administration with inorganic mercury (H...

Mercury is a global pollutant that biomagnifies in food webs, placing wildlife at risk of reduced reproductive fitness and survival. Songbirds are the most diverse branch of the avian evolutionary tree; many are suffering persistent and serious population declines and we know that songbirds are frequently exposed to mercury pollution. Our objective was to determine the effects of environmentall...

The Zeeman and hyperfine splittings of the emission spectra from mercury vapor lamps are investigated through the use of a Fabry-Perot interferometer. In the absence of a magnetic field, a low-intensity peak near the major 5461 Å emission line can be observed; this yields a hyperfine shift of frequency 12.70 ± 0.19 GHz, consistent with the bHg emission shift of 12.21 GHz. In the presence of dif...

OBJECTIVE Exposure to mercury can occur in occupational and environmental settings. During clinical work with dental amalgam, the dental personnel are exposed to both metallic mercury and mercury vapor. The aim of the present study was to investigate blood mercury level (BML) and its determinants among dentists practicing in Hamadan city, Iran. MATERIALS AND METHODS This cross sectional study...

Mercury is a toxic pollutant emitted from both natural sources and through human 7 activities. A global interest in atmospheric mercury has risen ever since the discovery of the 8 Minamata disease in 1956. Properties of gaseous elemental mercury enable long range transport 9 which can cause pollution even in pristine environments. Total gaseous mercury (TGM) was 10 measured from winter 2016 to ...

Considerable effort has been made to address the issue of occupational health and environmental exposure to mercury. This review reports on the current literature of mercury exposure and health impacts on dental personnel. Citations were searched using four comprehensive electronic databases for articles published between 2002 and 2015. All original articles that evaluated an association betwee...

To assess the impact of elevated levels of inorganic mercury in soil and dust and organic mercury in fish, biological monitoring was conducted among Native Americans living next to an inactive mercury mine in Clear Lake, California. Of resident tribal members, 46% (n = 56) participated in biomonitoring. Urine mercury levels are equivalent to background, indicating that soil and dust exposures a...