Mercury in the Environment Articles

238 Results found
  • Category: Health & Safety ×

  • Subcategory: Mercury in the Environment ×

The impacts of organic matter on the distribution and methylation of mercury in a hydroelectric reservoir in Wujiang River, Southwest China

by John Wiley & Sons, Ltd.  (Jul. 26, 2015)

In order to understand the impacts of organic matter on geochemical process of Hg in hydroelectric reservoir, spatial and seasonal distributions of total mercury (THg) and methylmercury (MeHg) both in solid and liquid phases of sediment cores were investigated in Wujiangdu Reservoir (WJD) in Guizhou province, China. Four sampling sites with ...

Efficacy of vacuum ultraviolet photolysis for bromate and chlorate removal

by IWA Publishing  (Jul. 24, 2015)

We introduce vacuum ultraviolet (VUV) photolysis at 172 nm as a more efficient process for bromate and chlorate removal than conventional ultraviolet (UV) photolysis at 254 nm. We discuss the effects of pH and coexisting salts on VUV photolysis. In experiments at various pH levels, the VUV photolysis performance decreased in the alkaline region ...

The role of melano‐macrophage aggregates in the storage of mercury and other metals: An example from yelloweye rockfish (Sebastes ruberrimus)

by John Wiley & Sons, Ltd.  (Jul. 14, 2015)

Melano‐macrophage aggregates, collections of specialized cells of the innate immune system of fish, are considered a general biomarker for contaminant toxicity. To elucidate further the relationship between macrophage aggregates and metals exposure, yelloweye rockfish (Sebastes ruberrimus), a long‐lived species, were sampled from the east and ...

Surface Decontamination of Mercury Compounds (Mercury(II) Oxide (HgO)) by DeconGel 1101

by METIS Scientific  (Jun. 29, 2015)

Abstract Surface decontamination efficacy determination of DeconGel™ 1101 on stainless steel, carbon steel, and concrete surfaces contaminated with mercury compounds (mercury(ll) oxide (HgO)) was performed with ICP-OES (Inductively Coupled Plasma-Optical Emission Spectroscopy) according to Environmental Protection Agency (EPA) SW-846 ...

Surface Decontamination of Mercury (elemental) by DeconGel 1101

by METIS Scientific  (Jun. 29, 2015)

Abstract Surface decontamination efficacy determination of DeconGel™ 1101 on stainless steel, porcelain tile, composite tile (unwaxed), linoleum tile, and concrete surfaces contaminated with mercury (elemental) was performed with Mercury Vapor Analysis Sensor (Mercury Tracker 3000) according to Environmental Protection Agency (EPA) SW-846 ...

Influence of in ovo mercury exposure, lake acidity, and other factors on common loon egg and chick quality in Wisconsin

by John Wiley & Sons, Ltd.  (Jun. 11, 2015)

We conducted a field study in Wisconsin to characterize in ovo mercury (Hg) exposure in common loons (Gavia immer). Total Hg mass fractions ranged from 0.17 to 1.23 µg/g wet weight (ww) in eggs collected from nests on lakes representing a wide range of pH (5.0 ‐ 8.1) and were modeled as a function of maternal loon Hg exposure and egg laying ...

Removal of trace mercury (II) from aqueous solution by in situ MnOx combined with poly-aluminum chloride

by IWA Publishing  (Jun. 8, 2015)

Removal of trace mercury from aqueous solution by Mn (hydr)oxides formed in situ during coagulation with poly-aluminum chloride (PAC) (in situ MnOx combined with PAC) was investigated. The efficiency of trace mercury removal was evaluated under the experimental conditions of reaction time, Mn dosage, pH, and temperature. In addition, the ionic ...

Mercury and selenium concentrations in skeletal muscle, liver and regions of the heart and kidney in bearded seals from Alaska

by John Wiley & Sons, Ltd.  (May 27, 2015)

Mean concentrations of total mercury [THg] and selenium [TSe] (mass and molar based) were determined for five regions of the heart and two regions of the kidney of bearded seals (Erignathus barbatus) harvested in Alaska in 2010–2011. Mean [THg] and [TSe] of bearded seal liver and skeletal muscle tissues were used for intertissular comparison. ...

An environmental problem hidden in plain sight? Small Human‐made ponds, emergent insects, and mercury contamination of biota in the Great Plains

by John Wiley & Sons, Ltd.  (May 25, 2015)

Mercury (Hg) contamination of small human‐made ponds and surrounding terrestrial communities may be 1 of the largest unstudied Hg‐pollution problems in the United States. Humans have built millions of small ponds in the Great Plains of the United States, and these ponds have become contaminated with atmospherically deposited mercury. In aquatic ...

Mercury free solutions for autoclave temperature monitoring

by Camlab Limited  (May 22, 2015)

Mercury is a naturally occurring element found in the air, water and soil however exposure to the substance, even in small amounts, can lead to severe health and ecosystem issues. Mercury in products can find it’s way into the environment in all sorts of ways such as manufacturing, spills, recycling and disposal. Due to the health ...

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