46,343 results match your criteria Mercury


Biodynamics of mercury in mussel tissues as a function of exposure pathway: natural vs microplastic routes.

Sci Total Environ 2019 Apr 13;674:412-423. Epub 2019 Apr 13.

Spanish Institute of Oceanography (IEO), C/Varadero, 1, 30740 San Pedro del Pinatar, Murcia, Spain. Electronic address:

In the marine environment, metals can be present dissolved or adsorbed to suspended particles. In the last decades a new type of particle has been introduced, microplastics (MPs). The exposure route of pollutants influences their accumulation and distribution into tissues. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.04.175DOI Listing

Sea-dumped ammunition as a possible source of mercury to the Baltic Sea sediments.

Sci Total Environ 2019 Apr 6;674:363-373. Epub 2019 Apr 6.

Institute of Oceanology, Polish Academy of Sciences, ul. Powstańców Warszawy 55, 81-712 Sopot, Poland.

After World War II, as a move toward Germany demilitarization, up to 385,000 t of munitions were sunk in the Baltic Sea. Munition containing various harmful substances, including chemical warfare agents (CWA) and explosives, that can affect marine biota were dumped on the seafloor. Some of those objects contained mercury, either as elemental mercury or mercury compounds (e. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.04.058DOI Listing

The Draft Genome Sequence of Pseudomonas putida Strain TGRB4, an Aerobic Bacterium Capable of Producing Methylmercury.

Curr Microbiol 2019 Apr 19. Epub 2019 Apr 19.

College of Resources and Environment, Southwest University, Chongqing, 400715, China.

Mercury (Hg) methylation is mainly a microbial process mediated by anaerobes. The continued study of Pseudomonas putida (P. putida) strain TGRB4 genome was inspired by the fact that it can transform Hg into the highly toxic methylmercury (MeHg) under aerobic conditions. Read More

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http://link.springer.com/10.1007/s00284-019-01670-3
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http://dx.doi.org/10.1007/s00284-019-01670-3DOI Listing
April 2019
1 Read

Bioaccumulation and human health implications of essential and toxic metals in freshwater products of Northeast China.

Sci Total Environ 2019 Apr 9;673:768-776. Epub 2019 Apr 9.

CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China. Electronic address:

Bioaccumulation and human health risks of essential and toxic metals in ten species of freshwater products from Northeast China were investigated in this study. The concentrations (mg/kg wet weight) of target metals in aquatic products were: Fe (4.6-165. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.04.099DOI Listing

Terrestrial organic matter increases zooplankton methylmercury accumulation in a brown-water boreal lake.

Sci Total Environ 2019 Mar 29;674:9-18. Epub 2019 Mar 29.

Department of Bioscience, University of Oslo, Blindernveien 31, 0371 Oslo, Norway. Electronic address:

Increases in terrestrial organic matter (tOM) transport from catchments to boreal lakes can affect methylmercury (MeHg) accumulation in aquatic biota both directly by increasing concentrations of aqueous MeHg, and indirectly through effects on MeHg bioavailability and on energy pathways in the lower food web. We carried out a detailed seasonal study of water chemistry, zooplankton diet, and MeHg accumulation in zooplankton in two lakes with contrasting tOM concentrations. Between-lake differences explained 51% of the variability in our water chemistry data, with no observed effect of season or sampling depth, contrary to our expectations. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.03.446DOI Listing

How closely do mercury trends in fish and other aquatic wildlife track those in the atmosphere? - Implications for evaluating the effectiveness of the Minamata Convention.

Sci Total Environ 2019 Apr 9;674:58-70. Epub 2019 Apr 9.

Department of Marine Sciences, University of Connecticut, 1080 Shennecossett Road, Groton, CT 06340, USA.

The Minamata Convention to reduce anthropogenic mercury (Hg) emissions entered into force in 2017, and attention is now focused on how to best monitor its effectiveness at reducing Hg exposure to humans. A key question is how closely Hg concentrations in the human food chain, especially in fish and other aquatic wildlife, will track the changes in atmospheric Hg that are expected to occur following anthropogenic emission reductions. We investigated this question by evaluating several regional groups of case studies where Hg concentrations in aquatic biota have been monitored continuously or intermittently for several decades. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.04.101DOI Listing

Impact of mercury speciation on its removal from water by activated carbon and organoclay.

Water Res 2019 Apr 9;157:600-609. Epub 2019 Apr 9.

Carnegie Mellon University, Pittsburgh, PA, 15213, United States; Center for Environmental Implications of Nanotechnology, Pittsburgh, PA, 15213, United States. Electronic address:

Mercury (Hg) speciation can affect its removal efficiency by adsorbents. This study assessed the removal of dissolved inorganic Hg(II) species (Hg(II)*), β-HgS nanoparticles (HgS NP), and Hg complexed with dissolved organic matter (Hg-DOM) by three sorbents: activated carbon (AC), sulfur-impregnated activated carbon (SAC), and organoclay (OC). The effect of ionic composition, solution ionic strength, and natural organic matter (NOM) concentration on the removal of each Hg species was also evaluated. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00431354193031
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http://dx.doi.org/10.1016/j.watres.2019.04.006DOI Listing
April 2019
3 Reads

Ecotoxicological effects of lanthanum in Mytilus galloprovincialis: Biochemical and histopathological impacts.

Aquat Toxicol 2019 Mar 25;211:181-192. Epub 2019 Mar 25.

Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal. Electronic address:

Inappropriate processing and disposal of electronic waste contributes to the contamination of aquatic systems by various types of pollutants such as the rare-earth elements (REE) in which lanthanum (La) is included. Knowledge on the toxicity of these elements in marine organisms is still scarce when compared to other metals such as mercury (Hg) and arsenic (As). Therefore, this study aims to assess the toxicity of La on the mussel Mytilus galloprovincialis, considered a good bioindicator of aquatic pollution, through the analysis of metabolic, oxidative stress, neurotoxicity and histopathological markers. Read More

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http://dx.doi.org/10.1016/j.aquatox.2019.03.017DOI Listing
March 2019
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Photocatalytic template removal by non-ozone generating UV radiation for the fabrication of well defined mesoporous inorganic coatings.

ACS Appl Mater Interfaces 2019 Apr 19. Epub 2019 Apr 19.

The processing of mesoporous inorganic coatings typically requires a high temperature calcination step to remove organic precursors that are essential during the material assembly. Lowering the fabrication energy costs and cutting back on the necessary resources would provide greater scope for the deployment in applications such as architectural glass, optical components, photovoltaic cells and energy storage and further compatibilize substrates with low temperature stability. Organic removal methods based on UV-ozone treatment are increasing in popularity but concerns remain regarding large-scale ozone generation and usage of mercury-containing UV lamps. Read More

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http://pubs.acs.org/doi/10.1021/acsami.9b01199
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http://dx.doi.org/10.1021/acsami.9b01199DOI Listing
April 2019
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Mercury detoxification by absorption, mercuric ion reductase, and exopolysaccharides: a comprehensive study.

Environ Sci Pollut Res Int 2019 Apr 18. Epub 2019 Apr 18.

Laboratory of Applied Microbiology, Department of Environmental Science & Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand, 826 004, India.

Mercury (Hg), the environmental toxicant, is present in the soil, water, and air as it is substantially distributed throughout the environment. Being extremely toxic even at low concentration, its remediation is utterly important. Therefore, it is necessary to detoxify the contaminant within the acceptable limits before threatening the environment. Read More

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http://dx.doi.org/10.1007/s11356-019-04974-wDOI Listing

Ultra-High Resolution Elemental/Isotopic Mass Spectrometry (m/Δm > 1,000,000): Coupling of the Liquid Sampling-Atmospheric Pressure Glow Discharge with an Orbitrap Mass Spectrometer for Applications in Biological Chemistry and Environmental Analysis.

J Am Soc Mass Spectrom 2019 Apr 18. Epub 2019 Apr 18.

Department of Chemistry, Clemson University, Clemson, SC, 29634, USA.

Many fundamental questions of astrophysics, biochemistry, and geology rely on the ability to accurately and precisely measure the mass and abundance of isotopes. Taken a step further, the capacity to perform such measurements on intact molecules provides insights into processes in diverse biological systems. Described here is the coupling of a combined atomic and molecular (CAM) ionization source, the liquid sampling-atmospheric pressure glow discharge (LS-APGD) microplasma, with a commercially available ThermoScientific Fusion Lumos mass spectrometer. Read More

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http://link.springer.com/10.1007/s13361-019-02183-w
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http://dx.doi.org/10.1007/s13361-019-02183-wDOI Listing
April 2019
1 Read

Blood mercury, lead, cadmium, manganese and selenium levels in pregnant women and their determinants: the Japan Environment and Children's Study (JECS).

J Expo Sci Environ Epidemiol 2019 Apr 18. Epub 2019 Apr 18.

Japan Environment and Children's Study Programme Office, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan.

The Japan Environment and Children's Study (JECS) is a birth-cohort study of 100,000 mother-child dyads that aims to investigate the effect of the environment on child health and development. Mercury (Hg), lead (Pb), cadmium (Cd), manganese (Mn) and selenium (Se) are considered to be important co-exposures when examining the effect of other chemical substances on child development. The levels of these elements in the blood of 20,000 randomly selected mid/late-term pregnant women from the whole JECS cohort were analysed using inductively coupled plasma-mass spectrometry. Read More

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http://dx.doi.org/10.1038/s41370-019-0139-0DOI Listing

Oscillatory activity regulation in an ensemble of autonomous mercury beating heart oscillators.

Phys Rev E 2019 Mar;99(3-1):032223

Department of Physics, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India.

Collective behavior of an ensemble of directly or indirectly coupled oscillators can be a function of population density. Experiments using autonomous mercury beating heart (MBH) oscillators coupled through their surroundings are employed, to study the existence of quorum-like (population dependent) phenomena. Two coupling mechanisms are used, namely, static and dynamic coupling. Read More

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https://link.aps.org/doi/10.1103/PhysRevE.99.032223
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http://dx.doi.org/10.1103/PhysRevE.99.032223DOI Listing
March 2019
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The three 'B' of fish mercury in China: Bioaccumulation, biodynamics and biotransformation.

Environ Pollut 2019 Apr 10;250:216-232. Epub 2019 Apr 10.

Department of Ocean Science, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, HKUST Shenzhen Research Institute, Shenzhen, 518057, China. Electronic address:

Mercury (Hg) is a global toxic pollutant and has raised the world's attention for decades. In this study, we reviewed the fish mercury levels in China (both marine and freshwater, as well as wild and farmed) documented over the past decade and their controlling environmental and biological factors. China is the largest contributor of global Hg cycling and the largest nation for the consumption and export of fish and fish product, thus Hg level in fish becomes a critical issue for food safety and public health. Read More

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http://dx.doi.org/10.1016/j.envpol.2019.04.034DOI Listing
April 2019
4 Reads

Synthesis, Structure, and Magnetic Properties of Two Mercury Selenite Antiferromagnets HgM(SeO)(HO) (M = Co, Ni).

Inorg Chem 2019 Apr 18. Epub 2019 Apr 18.

State Key Laboratory of Structural Chemistry , Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou , Fujian 350002 , PR China.

Two mercury selenite compounds HgM(SeO)(HO) (M = Co, Ni) are synthesized using a conventional hydrothermal method. Both compounds crystallize in the monoclinic structure with a C2/ c space group, and equivalent Co or Ni ions exhibit a stacked triangular lattice. Magnetic measurements suggest different magnetic properties between these two isostructural compounds, in which HgCo(SeO)(HO) undergoes a canted antiferromagnetic order below T = 7. Read More

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http://dx.doi.org/10.1021/acs.inorgchem.9b00008DOI Listing

Thermodynamics of OHgX, XHgOH, XHgOCl, XHgOBr, HOHgY Gaseous Oxidized Mercury Molecules from Isodesmic, Isogyric, and Atomization Work Reactions (X = Halogen, Y = OH, OCl, OBr).

J Phys Chem A 2019 Apr 18. Epub 2019 Apr 18.

Isogyric, isodesmic, and atomization reactions were used to determine the standard enthalpies of formation (ΔH0f) for a series of OHgX, XHgOH, XHgOCl, XHgOBr, HOHgY molecules (X = Halogen, Y = OH, OCl, OBr) from single point CCSD(T)/AVnZ//M06-2X/AVTZ (n = D, T, Q) energies extrapolated to the complete basis set limit using a 3 point mixed Gaussian exponential scheme. Standard enthalpies of formation from isogyric and isodesmic reactions are in good agreement with experimental data and values from higher level calculations, but at significantly reduced computation time. The established template work reaction scheme and methodology can potentially be extended for Hg species outside the scope of this work. Read More

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http://dx.doi.org/10.1021/acs.jpca.9b01358DOI Listing
April 2019
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Comparative analysis of in vitro neurotoxicity of methylmercury, mercury, cadmium, and hydrogen peroxide on SH-SY5Y cells.

J Vet Med Sci 2019 Apr 18. Epub 2019 Apr 18.

Department of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Kagoshima University.

Mercury (Hg) and cadmium (Cd) are the major toxic heavy metals and are known to induce neurotoxicity. Although many studies have shown that several heavy metals have neurotoxic effects, the cellular and molecular mechanisms thereof are still not clear. Oxidative stress is reported to be a common and important mechanism in cytotoxicity induced by heavy metals. Read More

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http://dx.doi.org/10.1292/jvms.19-0059DOI Listing

Mercury and methylmercury concentrations, sources and distribution in submarine canyon sediments (Capbreton, SW France): Implications for the net methylmercury production.

Sci Total Environ 2019 Apr 10;673:511-521. Epub 2019 Apr 10.

CNRS/ UNIV PAU & PAYS ADOUR/ E2S UPPA, Institut des Sciences Analytiques et de Physicochimie pour l'Environnement et les Matériaux - MIRA, UMR 5254, 64600 Anglet, France. Electronic address:

Submarine canyons are important stocks of commercial interest fish, whose consumption is one of the main monomethymercury (MeHg) exposure to humans. Currently, biogeochemistry of mercury in those biologically productive system is unknown. In this work, inorganic mercury (Hg(II)) and organic mercury (MeHg) distributions were measured in sedimentary accumulative zones (slopes and terraces) against adjacent continental shelf sediments. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.04.111DOI Listing

Recyclable fluorescent chemodosimeters based on 8-hydroxyquinoline derivatives for highly sensitive and selective detection of mercury(II) in aqueous media and test strips.

Spectrochim Acta A Mol Biomol Spectrosc 2019 Apr 4;218:196-205. Epub 2019 Apr 4.

School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China. Electronic address:

Four novel highly selective 8-hydroxyquinoline-based fluorescent chemodosimeters (1-4) were synthesized for the rapid analysis of Hg in aqueous solution and on paper strips, which probably attributed to the excited state intramolecular proton transfer (ESIPT) process. Chemodosimeter 1 was evaluated as a Hg-ratiometric fluorescent sensor while others (2, 3 and 4) displayed fluorescence turn-on response for Hg among the various survey metal ions. We demonstrated that chemodosimeters (1-4) could recognized Hg ions based on a 1:1 stoichiometric binding event with fast detection time. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S13861425193037
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http://dx.doi.org/10.1016/j.saa.2019.04.004DOI Listing
April 2019
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Alterations Resulting From Exposure to Mercury in Normotensive and Hypertensive Rats.

Arq Bras Cardiol 2019 Apr;112(4):381-382

Faculdade de Medicina de Botucatu - Universidade Estadual Paulista (UNESP), Botucatu, SP - Brazil.

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http://dx.doi.org/10.5935/abc.20190025DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6459425PMC

Fast Determination of Auramine O in Food by Adsorptive Stripping Voltammetry.

J Anal Methods Chem 2019 12;2019:8639528. Epub 2019 Mar 12.

Department of Analytical Chemistry, Faculty of Chemistry, VNU University of Science, 19 Le Thanh Tong Street, Hanoi, Vietnam.

The electrochemical behaviour of auramine O on the hanging mercury drop electrode has been investigated by cyclic and square wave voltammetry method. Reduction peak of auramine O was irreversible and adsorptive on the hanging mercury drop electrode. The optimal conditions were chosen to be Briton-Robinson buffer pH 9. Read More

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https://www.hindawi.com/journals/jamc/2019/8639528/
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http://dx.doi.org/10.1155/2019/8639528DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6434281PMC
March 2019
1 Read

Unprecedented E-stereoselectivity on the sigmatropic Hurd-Claisen rearrangement of Morita-Baylis-Hillman adducts: a joint experimental-theoretical study.

Org Biomol Chem 2019 Apr 16. Epub 2019 Apr 16.

Instituto de Química, Universidade de Brasília, Campus Darcy Ribeiro, 70910-900 - Brasília, DF, Brazil.

Herein we report the first systematic investigation of the tandem mercury(ii) catalysed transvinylation/Hurd-Claisen rearrangement of MBH adducts derived from alkyl acrylates. This is the first report of E-selectivity for MBH adducts with alkyl side chains and is complementary to the previously reported Johnson-Claisen and Eschenmoser-Claisen rearrangements. The rearrangement products were obtained in good yields and could be readily converted to 2-alkenyl δ-valerolactones. Read More

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http://xlink.rsc.org/?DOI=C9OB00533A
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http://dx.doi.org/10.1039/c9ob00533aDOI Listing
April 2019
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Assessing the air-surface exchange and fate of mercury in a subtropical forest using a novel passive exchange-meter device.

Environ Sci Technol 2019 Apr 16. Epub 2019 Apr 16.

A novel passive exchange meter (EM) device was developed based on the mass balance approach, and on the use of 202Hg as field internal standard. It simultaneously and dynamically resolves Hg budgets in vegetation litter and assess the fate of Hg in the air and forest soil interface. Measurements of Hg fluxes were carried out in a subtropical forest ecosystem during a full year. Read More

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http://dx.doi.org/10.1021/acs.est.8b06343DOI Listing

Toxicological effects of toxic metals (cadmium and mercury) on blood and the thyroid gland and pharmacological intervention by vitamin C in rabbits.

Environ Sci Pollut Res Int 2019 Apr 16. Epub 2019 Apr 16.

Department of Zoology, University of the Punjab, Lahore, Pakistan.

Cadmium and mercury are non-biodegradable toxic metals that may cause many detrimental effects to the thyroid gland and blood. Vitamin C has been found to be a significant chain-breaking antioxidant and enzyme co-factor against metal toxicity and thus make them less available for animals. The current study was performed to find the effect of individual metals (cadmium and mercury), their co-administration, and the ameliorative effects of vitamin C on some of the parameters that indicate oxidative stress and thyroid dysfunction. Read More

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http://dx.doi.org/10.1007/s11356-019-04886-9DOI Listing
April 2019
1 Read

Technologies applicable to the removal of heavy metals from landfill leachate.

Environ Sci Pollut Res Int 2019 Apr 15. Epub 2019 Apr 15.

Facultad de Minas, Universidad Nacional de Colombia, Medellín, Colombia.

This article presents a review of the main physical, chemical, electrochemical, and biological technologies used for treating heavy metals in the wastewater of industrial processes and in synthetic aqueous solutions which could be applied to leachate from landfills. This paper outlines the generalities, operating principles, and modifications made to the technologies described. It discusses and assesses which of these have better removal rates and higher levels of efficiency in minimizing the heavy metal concentrations contained in leachates, such as mercury, chromium, lead, nickel, and copper among others. Read More

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http://link.springer.com/10.1007/s11356-019-04888-7
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http://dx.doi.org/10.1007/s11356-019-04888-7DOI Listing
April 2019
4 Reads

Correction to: Mercury accumulation, speciation, and temporal trends in Atlantic Stingrays (Hypanus sabinus).

Ecotoxicology 2019 Apr 15. Epub 2019 Apr 15.

Department of Biological Sciences and Advanced Environmental Research Institute, University of North Texas, Denton, TX, USA.

The corrections are: In the 2nd sentence of the Statistical Analyses section, the current sentence lacks important statistical assumption wording. Read More

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http://dx.doi.org/10.1007/s10646-019-02039-9DOI Listing

Multiple Lines of Evidences Reveal Mechanisms Underpinning Mercury Resistance and Volatilization by Stenotrophomonas sp. MA5 Isolated from the Savannah River Site (SRS), USA.

Cells 2019 Apr 3;8(4). Epub 2019 Apr 3.

Environmental Biotechnology Laboratory, School of the Environment, 1515 S. Martin Luther King Jr. Blvd., Suite 305B, FSH Science Research Center, Florida A&M University, Tallahassee, FL 32307, USA.

A largely understudied microbially mediated mercury (Hg) bioremediative pathway includes the volatilization of Hg to Hg⁰. Therefore, studies on Hg resistant bacteria (HgR), isolated from historically long-term contaminated environments, can serve as models to understand mechanisms underpinning Hg cycling. Towards this end, a mercury resistant bacterial strain, identified as sp. Read More

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http://dx.doi.org/10.3390/cells8040309DOI Listing

Highly Hydrophilic TiO₂ Nanotubes Network by Alkaline Hydrothermal Method for Photocatalysis Degradation of Methyl Orange.

Nanomaterials (Basel) 2019 Apr 3;9(4). Epub 2019 Apr 3.

Key Lab of Poyang Lake Environment and Resource Utilization (Ministry of Education), Nanchang University, Nanchang 330031, China.

High-density and highly cross-coated anatase TiO₂ nanotubes networks have been successfully prepared on the surface of Ti foil by alkaline hydrothermal using NaOH and Ti foil as the precursors. The nanotubes networks were analyzed using X-ray diffraction (XRD), energy dispersive X-ray spectrometer (EDX), transmission electron microscope (TEM), scanning electron microscopy (SEM), optical contact angle tester, and ultraviolet (UV) fluorescence spectrophotometer, respectively. The results showed that the nanotubes network with diameters of 30-50 nm were obtained on the Ti foil surface. Read More

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http://dx.doi.org/10.3390/nano9040526DOI Listing

Spatial and temporal patterns of metallic pollution in Québec City, Canada: Sources and hazard assessment from reservoir sediment records.

Sci Total Environ 2019 Apr 4;673:136-147. Epub 2019 Apr 4.

Département de Géographie, Université Laval, Pavillon Abitibi-Price, 2405 Rue de la Terrasse, Québec, QC G1V 0A6, Canada.

Québec City (QC, Canada) is an important urban center developed along the Saint-Charles River, at the confluence with the Saint-Lawrence River. Here, environmental issues related to pollution have been recently raised for sediments trapped upstream a dam built in the early 1970s. The major concern is about downstream transport of sediments and contaminants toward the Saint-Lawrence Estuary, a protected marine area of high socioeconomic value. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.04.021DOI Listing
April 2019
1 Read

Characterization of mercury-reducing potential bacteria isolated from Keputih non-active sanitary landfill leachate, Surabaya, Indonesia under different saline conditions.

J Environ Manage 2019 Apr 12;241:113-122. Epub 2019 Apr 12.

Study Program of Environmental Engineering, Department of Biology, Faculty of Science and Technology, Universitas Airlangga, Kampus C UNAIR, Jalan Mulyorejo, Surabaya, 60115, Indonesia. Electronic address:

The objectives of this research were to identify the capability of bacteria isolated from a non-active sanitary landfill to remove mercury under different saline conditions and to understand the removal kinetics. The mercury concentrations used in the minimum inhibitory concentration (MIC) test were 0, 5, 10, 15 and 20 mg/L. The capability of one selected bacterium from the MIC test to remove mercury under different saline conditions (0, 10, 20, and 30‰) was also tested. Read More

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http://dx.doi.org/10.1016/j.jenvman.2019.04.017DOI Listing

Elemental mercury removal by a novel advanced oxidation process of ultraviolet/chlorite-ammonia: Mechanism and kinetics.

J Hazard Mater 2019 Apr 1;374:120-128. Epub 2019 Apr 1.

Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding, 071003, PR China; MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, PR China.

A novel advanced oxidation process (AOP) of ultraviolet/chlorite-ammonia (UV/NaClO-NHOH) was developed to remove Hg from flue gas. The distribution of mercury concentration in three solutions of NaClO-NHOH, KCl, and HSO-KMnO was determined by cold atom fluorescence spectrometry (AFS). The role of NHOH was to help NaClO preserving and/or stabilizing Hg meanwhile inhibiting the photo-production of ClO. Read More

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http://dx.doi.org/10.1016/j.jhazmat.2019.03.134DOI Listing
April 2019
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Practical application of the ATOM study: Treatment efficacy of antihypertensive drugs in monotherapy or combination (ATOM metaanalysis according to PRISMA statement); tables for the use of antihypertensive drugs in monotherapy or combination.

Medicine (Baltimore) 2019 Apr;98(15):e15010

Department of Medical Sciences, University of Girona, Girona.

Background: The response to antihypertensive drugs is predictable. The absence of precise prescription recommendations to treat arterial hypertension (HT) lead to use drugs unable to reduce blood pressure (BP) to target values.We published ATOM study, in which we found significant differences in the ability to reduce BP between the different drugs. Read More

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http://dx.doi.org/10.1097/MD.0000000000015010DOI Listing

Oral exposure to cadmium and mercury alone and in combination causes damage to the lung tissue of Sprague-Dawley rats.

Environ Toxicol Pharmacol 2019 Mar 28;69:86-94. Epub 2019 Mar 28.

Department of Anatomy, Faculty of Health Sciences, University of Pretoria, Private Bag x323, Arcadia, 0007, South Africa. Electronic address:

Environmental presence and human exposure to heavy metals in air and cigarette smoke has led to a worldwide increase in respiratory disease. The effects of oral exposure to heavy metals in liver and kidney structure and function have been widely investigated and the respiratory system as a target is often overlooked. The aim of the study was to investigate the possible structural changes in the lung tissue of Sprague-Dawley rats after oral exposure for 28 days to cadmium (Cd) and mercury (Hg), alone and in combination at 1000 times the World Health Organization's limit for each metal in drinking water. Read More

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http://dx.doi.org/10.1016/j.etap.2019.03.021DOI Listing
March 2019
3 Reads

Concentration, spatiotemporal distribution, and sources of mercury in Mt. Yulong, a remote site in southeastern Tibetan Plateau.

Environ Sci Pollut Res Int 2019 Apr 13. Epub 2019 Apr 13.

State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Donggang West Rd. 320, Lanzhou, 730000, China.

The unique geographic location of Mt. Yulong in the Tibetan Plateau (TP) makes it a favorable site for mercury (Hg) study. Various snow samples, such as surface snow, snow pit, and snowmelt water were collected from Mt. Read More

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http://dx.doi.org/10.1007/s11356-019-05005-4DOI Listing
April 2019
2.828 Impact Factor

Rapid detection of heavy metal-induced toxicity in water using a fed-batch sulfur-oxidizing bacteria (SOB) bioreactor.

J Microbiol Methods 2019 Apr 9. Epub 2019 Apr 9.

Department of Biological Environment, Kangwon National University, 192-1 Hyoja-dong, Gangwon-do, Chuncheon-si 200-701, Republic of Korea. Electronic address:

A fed-batch bioreactor based on sulfur-oxidizing bacteria (SOB) was tested for rapid detection of heavy metal-induced toxicity in water. For this evaluation, SOB were exposed to water contaminated by selenium, mercury, hexavalent chromium, arsenic, cyanide, cadmium, and lead for 2 h and their inhibition rates were analyzed based on changes in electrical conductivity (EC). The results demonstrate that SOB were highly inhibited by selenium, mercury, hexavalent chromium, and arsenic but not by cyanide, cadmium, and lead. Read More

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http://dx.doi.org/10.1016/j.mimet.2019.04.007DOI Listing
April 2019
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Evaluation of amalgam-related retinal neurotoxicity with optical coherence tomography findings.

Hum Exp Toxicol 2019 Apr 12:960327119842637. Epub 2019 Apr 12.

1 Department of Ophthalmology, School of Medicine, Adıyaman University, Adıyaman, Turkey.

Purpose: To evaluate the neurotoxic effect of amalgam dental fillings on plasma mercury (Hg) levels and retino-choroidal layers measured by spectral domain optical coherence tomography (SD-OCT).

Materials/methods: Study participants included 56 cases with amalgam dental fillings and 44 healthy controls. All participants were examined in terms of detailed ophthalmic examination, oral examination, and body mass index (BMI). Read More

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http://dx.doi.org/10.1177/0960327119842637DOI Listing
April 2019
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Membranous nephropathy due to chronic mercury poisoning from traditional Indian medicines: report of five cases.

Clin Kidney J 2019 Apr 3;12(2):239-244. Epub 2018 Jun 3.

Department of Nephrology, Apollo Hospitals, Chennai, Tamil Nadu, India.

Mercury contained in traditional medicines can cause chronic poisoning, which can cause membranous nephropathy (MN). We report five cases of nephrotic syndrome caused by MN with evidence of chronic mercury poisoning due to consumption of traditional Indian medicines such as Siddha and Ayurveda, which to our knowledge are the first such reports. All patients were seronegative for antibodies against phospholipase A2 receptor (PLA2R). Read More

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http://dx.doi.org/10.1093/ckj/sfy031DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6452196PMC
April 2019
1 Read

Production and characteristics of sewage sludge in Italy.

Water Sci Technol 2019 Feb;79(4):619-626

UTILITALIA Association of the Water, Energy and Environment Utilities, Rome, Italy.

Results of an extended survey on the production and quality of sewage sludge produced in Italy are herewith reported and discussed. Data are relevant to 2015. They were provided by 84 Italian water utilities responsible for municipal wastewater treatment serving approximately 35 million persons. Read More

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https://iwaponline.com/wst/article/79/4/619/65979/Production
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http://dx.doi.org/10.2166/wst.2019.064DOI Listing
February 2019
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The Potential of Ladle Slag and Electric Arc Furnace Slag use in Synthesizing Alkali Activated Materials; the Influence of Curing on Mechanical Properties.

Materials (Basel) 2019 Apr 10;12(7). Epub 2019 Apr 10.

Slovenian National Building and Civil Engineering Institute, Dimičeva 12, 1000 Ljubljana, Slovenia.

Alkali activation is studied as a potential technology to produce a group of high performance building materials from industrial residues such as metallurgical slag. Namely, slags containing aluminate and silicate form a useful solid material when activated by an alkaline solution. The alkali-activated (AA) slag-based materials are promising alternative products for civil engineering sector and industrial purposes. Read More

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http://dx.doi.org/10.3390/ma12071173DOI Listing

Maternal exposure to arsenic and mercury in small-scale gold mining areas of Northern Tanzania.

Environ Res 2019 Mar 19;173:432-442. Epub 2019 Mar 19.

Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada; Department of Pediatrics, Cumming School of Medicine, University of Calgary, 28 Oki Drive NW, Calgary, AB, T3A 6A8, Canada; Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Room 294, Heritage Medical Research Building, 3330 Hospital Drive, NW, Calgary, AB, T2N 4N1, Canada. Electronic address:

Artisanal and small-scale gold mining (ASGM) in Tanzania results in occupational exposures and environmental contamination to toxic chemical elements such as arsenic and mercury. Populations living in such areas may be exposed by various routes, and prenatal exposure to arsenic and mercury has been associated with adverse birth outcomes and developmental delays. The aim of this study was to determine if levels of arsenic and mercury differed among pregnant women living in areas with and without ASGM activities in Northern Tanzania. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00139351193015
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http://dx.doi.org/10.1016/j.envres.2019.03.031DOI Listing
March 2019
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Fluorescence-sensitive adsorbent based on cellulose using for mercury detection and removal from aqueous solution with selective "on-off" response.

Int J Biol Macromol 2019 Apr 8;132:1185-1192. Epub 2019 Apr 8.

Department of Chemical Engineering, University of New Brunswick, Fredericton E3B 5A3, Canada. Electronic address:

A new fluorogenic bio-adsorbent was successfully synthesized for detection and adsorption of mercury ions in aqueous solution. It showed high sensitivity in removing Hg (II) at low concentration with a detection limit of 84 ppb which was below the maximum discharge standard in enterprise drain off water in China, besides, the adsorbent had good selectivity towards Hg (II) among numerous kinds of cations in water that it showed fluorescent quenching properties for Hg (II) ions due to photo-induced electron transfer. In addition, batch adsorption experiments were investigated to study the influence of initial concentration of metal ions, contact time, pH of the solution on the adsorption capacity. Read More

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http://dx.doi.org/10.1016/j.ijbiomac.2019.04.048DOI Listing

Synthesis of silver-loaded ZnO nanorods and their enhanced photocatalytic activity and photoconductivity study.

Photochem Photobiol Sci 2019 Apr 11. Epub 2019 Apr 11.

Centre for Materials for Electronics Technology, Off Pashan Road, Panchvati, Pune-411008, India.

Herein, we synthesized ZnO nanorods using a solvothermal reaction technique at 200 °C for 24 h, and the prepared ZnO nanorods were decorated with silver (Ag) nanoparticles to enhance their photocatalytic activity. The Ag nanoparticles were photochemically deposited on the ZnO rods with varying molar concentrations (from 0.5 to 10 mol%), and their various physicochemical properties were studied. Read More

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http://dx.doi.org/10.1039/c9pp00099bDOI Listing

How do breast cancer surgery scars impact survivorship? Findings from a nationwide survey in the United States.

BMC Cancer 2019 Apr 11;19(1):342. Epub 2019 Apr 11.

Mercury Medical Research & Writing, New York, NY, USA.

Background: The surgical treatment of breast cancer has been associated with negative consequences for patients' body image, sexual functioning, mental health, and social adjustment. Recent advances in the surgical approach to breast cancer allow the oncologic surgeon to safely optimize cosmetic outcomes. Little is known about the possible relevance of surgical scars. Read More

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http://dx.doi.org/10.1186/s12885-019-5553-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6458748PMC

Sediment organic carbon and temperature effects on methylmercury concentration: A mesocosm experiment.

Sci Total Environ 2019 May 20;666:1316-1326. Epub 2019 Feb 20.

Department of Biological Sciences, Dartmouth College, Hanover, NH, United States of America.

The fate and mobility of mercury, and its bioaccumulation primarily as methylmercury (MeHg), in marine ecosystems are influenced by climate related environmental factors, including increased temperature and carbon loading. To investigate the interactions between sediment organic carbon and temperature MeHg bioaccumulation, mesocosm experiments were conducted examining relationships between sediment, water column and biota (sediment-dwelling amphipod and juvenile oyster) MeHg concentration. Experimental treatments consisted of a two by two design of high and low temperature (15 & 25 °C) and high and low sediment organic carbon (4-5% and 13% LOI, pre-experiment). Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.02.302DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6461384PMC

Changes in the mercury isotopic composition of sediments from a remote alpine lake in Wyoming, USA.

Sci Total Environ 2019 Jun 13;669:973-982. Epub 2019 Mar 13.

Department of Geology, Wayne State University, Detroit, MI 48201, United States.

Mercury (Hg) deposition from the atmosphere has increased dramatically since 1850 and Hg isotope records in lake sediments can be used to identify changes in the sources and cycling of Hg. We collected a sediment core from a remote lake (Lost Lake, Wyoming, USA) and measured vertical variation of Hg concentration and isotopic composition as well as Pb and Cs activities to establish a chronology. We also analyzed vegetation and soil samples from the watershed which has a small ratio of watershed area to lake surface area (2. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.03.165DOI Listing

Comparisons between different blood pressure measurement techniques in patients with chronic kidney disease.

Kidney Res Clin Pract 2019 Apr 8. Epub 2019 Apr 8.

Shiraz Nephro-Urology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.

Background: Automated office blood pressure (AOBP) machines measure blood pressure (BP) multiple times over a brief period. We aimed to compare the results of manual office blood pressure (MOBP) and AOBP methods with ambulatory BP monitoring (ABPM) in patients with chronic kidney disease (CKD).

Methods: This study was performed on 64 patients with CKD (stages 3-4). Read More

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http://dx.doi.org/10.23876/j.krcp.18.0109DOI Listing

In situ remediation of mercury-contaminated soil using thiol-functionalized graphene oxide/Fe-Mn composite.

J Hazard Mater 2019 Apr 1;373:783-790. Epub 2019 Apr 1.

Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou, 511443, China.

Mercury (Hg) contamination in soil is a paramount concern to the environment and public health. Yet, effective in situ remediation technologies have been lacking. In this study, a novel thiol-functionalized graphene oxide/Fe-Mn (SGO/Fe-Mn) composite was prepared and investigated for in situ immobilization of Hg in contaminated soil. Read More

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http://dx.doi.org/10.1016/j.jhazmat.2019.03.132DOI Listing

Mobilization of mercury species under dynamic laboratory redox conditions in a contaminated floodplain soil as affected by biochar and sugar beet factory lime.

Sci Total Environ 2019 Mar 29;672:604-617. Epub 2019 Mar 29.

University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany; Department of Environment, Energy & Geoinformatics, Sejong University, 98 Gunja-Dong, Guangjin-Gu, Seoul, South Korea. Electronic address:

Mercury and its species are toxic and therefore strategies to immobilize them or to impede the formation of bioaccumulative MeHg are a hot topic of ongoing research. Biochar (BC) and sugar beet factory lime (SBFL) are suggested to have the potential to meet these goals. However, their ability to restrain the mobilization of total Hg (Hg), methylmercury (MeHg), and ethylmercury (EtHg) or the formation of MeHg and EtHg has not been examined to date. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.03.401DOI Listing