According to the World Health Organization (WHO), mercury is among one of ten substances that represent a significant health problem. Contamination environment with and its compounds possible through natural artificial ways from ill-conceived or deliberate actions. These include human consumption mercury-contaminated seafood fumes released during...

Total mercury (THg) and methylmercury (MeHg) concentrations were measured in the muscle of Arctic charr (Salvelinus alpinus) and in the water column of 4 lakes that are located in the French Alps. Watershed characteristics were determined (6 coverage classes) for each lake in order to evaluate the influence of watershed composition on mercury and methylmercury concentrations in fish muscle and ...

BACKGROUND Recent policies attempting to reduce adverse effects of methylmercury exposure from fish consumption in the United States have targeted reductions in anthropogenic emissions from U.S. sources. OBJECTIVES To analyze the prospects for future North American and international emissions controls, we assessed the potential contributions of anthropogenic, historical, and natural mercury t...

A fish consumption survey was developed and administered by telephone to 820 Wyoming fishing license holders. Survey respondents provided the frequency, species, and quantity of Wyoming-caught and store-bought fish consumed for license holder and household members. Deterministic and probabilistic methylmercury exposure distributions were estimated by multiplying fish consumption by speciesspeci...

OBJECTIVE To examine whether an FFQ can be used for assessing exposure to methylmercury (MeHg) by estimating MeHg intake from seafood consumption using the FFQ and confirming the accuracy of the estimated value. DESIGN Seafood consumption of pregnant women was assessed using the FFQ. Total mercury (T-Hg) concentrations of maternal red blood cells (RBC) and hair were measured as exposure indic...

Mercury is a serious neurotoxic agent, and the control monitoring of emissions are important. Optical spectroscopy powerful technique for measurement mercury, which in atmosphere predominantly appears atomic form. The mercury resonance line close to 254 nm can be utilized long-path absorption measurements average concentrations or light detection ranging (lidar) studies, where range-resolved co...

Stability constants from molecular weigth measurements for the complexes R2Hgbpy (bpy = 2,2'-bipyridyl) in carbon tetrachloride and benzene at 25 °C decrease in the order R = CaF5 > > p-HC6F4 = p-MeOC6F4 2':: o-HC5F4, and for R2HgOPPha, in the order R = o-HC6F4 > C5F5 > p-HC5F4 = p-MeOC5F4 with higher values in the former solvent. The unexpectedly greater stability of (o-HC5F4)2HgOPPha than (C5...

Macromolecular dextrans carrying substituents terminated by sulfhydryl groups or terminated by aromatic amines effectively inhibit the growth of a fibrosarcoma and of a mammary adenocarcinoma in a syngeneic mouse model. These compounds have no or very low toxicity to animals and are nontoxic to fibrosarcoma cells in vitro. Small-molecular-weight compounds carrying the same substituents as the a...