Campoy-Diaz, Alejandra D. Malanga, Gabriela Giraud-Billoud, Maximiliano Vega, Israel A.
Published in
Frontiers in Physiology
The freshwater gastropod Pomacea canaliculata fulfills the ideal conditions of a bioindicator species since its digestive gland bioconcentrates elements toxic for human and ecosystems health. The aim of this work was to study the balance between production of free radicals and antioxidant defenses, and the generation of oxidative damage in the dige...
Libchaber, Albert
Published in
Annual Review of Condensed Matter Physics
The overall effect of temperature gradients is stressed for the Earth's core and surface, but also for the Sun's surface. Using Rayleigh–Bénard convection in helium and mercury, we measured all of the scaling properties of the period-doubling cascade and quasiperiodicity. Hard turbulence scaling properties are presented in an experiment using heliu...
Toro-Valdivieso, Constanza Jugdaohsingh, Ravin Powell, Jonathan J Hoffman, Joseph I Forcada, Jaume Moore, Charles Blacklaws, Barbara
Funder: Newnham College / Funder: Department of Veterinary Medicine, University of Cambridge / Funder: Research and Development Agency of Chile / Funder: Cambridge Trust / Heavy metals, including mercury (Hg) and cadmium (Cd), occur naturally or anthropogenically and are considered toxic to the environment and human health. However, studies on heav...
de Pao Mendonca, Kassandra Angeletti, Bernard Dufour, Aurélie Borchiellini, Carole Heimbürger-Boavida, Lars-Eric Renard, Emmanuelle Issartel, Julien
The biomonitoring of metallic contamination in marine ecosystems is often focused on animal species of commercial interest and in lesser extent on non-model marine invertebrates. The aim of this study was to compare the metal concentrations (Li, Al, Ti, Cr, Fe, Ni, Cu, Zn, As, Ag, Cd, Hg, Pb) in seven marine sponges with a particular interest in th...
Kushner, D. Skye Lopez, Taryn M. Wallace, Kristi L. Damby, David E. Kern, Christoph Cameron, Cheryl E.
Published in
Frontiers in Earth Science
Ash is a potential sink of volcanically sourced atmospheric mercury (Hg), and the concentration of particle-bound Hg may provide constraints on Hg emissions during eruptions. We analyze Hg concentrations in 227 bulk ash samples from the Mount Spurr (1992), Redoubt Volcano (2009), and Augustine Volcano (2006) volcanic eruptions to investigate large-...
Chen, Wenhao Yu, Zhigang Yang, Xu Wang, Tantan Li, Zihao Wen, Xin He, Yubo Zhang, Chang
Published in
International journal of environmental research and public health
Biochar can effectively reduce the phytoavailability of mercury (Hg) in soil, but the mechanisms are not fully understood. In this study, the dynamic changes in Hg content adsorbed by the biochar (BC-Hg), Hg phytoavailability in the soil (P-Hg), and soil dissolved organic matter (DOM) characteristics were determined over a 60-day treatment period. ...
Zhu, Sihua Yang, Caiyun Chen, Hong Wang, Yongmin Li, Jieqin Zhang, Ruixi Yang, Yu Zhang, Cheng Wang, Dingyong
Published in
International journal of environmental research and public health
The particular condition of the water-level-fluctuation zone (WLFZ) in the Three Gorges Reservoir (TGR), the largest hydroelectric reservoir in China, raises great concerns about mercury (Hg) contamination and ecological risk. In addition, previous research found that soil organic carbon (SOC) plays an essential role in controlling Hg distribution ...
Eckley, Chris S. Eagles-Smith, Collin Luxton, Todd P. Hoffman, Joel Janssen, Sarah
Published in
Frontiers in Environmental Chemistry
Ecosystems downstream of mercury (Hg) contaminated sites can be impacted by both localized releases as well as Hg deposited to the watershed from atmospheric transport. Identifying the source of Hg in water, sediment, and fish downstream of contaminated sites is important for determining the effectiveness of source-control remediation actions. This...
Alqahtani, Mohammed A El-Ghiaty, Mahmoud A El-Kadi, Ayman O S
Published in
Journal of biochemical and molecular toxicology
The cytochrome P450 1 A (CYP1A) subfamily enzymes are involved in the metabolic activation of several xenobiotics to toxic metabolites and reactive intermediates, resulting ultimately in carcinogenesis. Mercury and halogenated aromatic hydrocarbons (HAHs), typified by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), are persistent environmental pollutan...
Andrews, Lester S Tsegaw, Yetsedaw A Cho, Han-Gook Riedel, Sebastian
Published in
Chemistry (Weinheim an der Bergstrasse, Germany)
Mercuric oxide is a well-known and stable solid, but the diatomic molecule Hg-O is very fragile and does not survive detection in the gas phase. However, laser ablation of Hg atoms from a dental amalgam alloy target into argon or neon containing about 0.3 % of 16 O2 or of 18 O2 during their condensation into a cryogenic matrix at 4 K allows the for...
