Search Results - "Johnson, C. Annette"

Groundwater Arsenic Contamination Throughout China by Rodríguez-Lado, Luis, Sun, Guifan, Berg, Michael, Zhang, Qiang, Xue, Hanbin, Zheng, Quanmei, Johnson, Annette

“…Arsenic-contaminated groundwater used for drinking in China is a health threat that was first recognized in the 1960s. However, because of the sheer size of…”
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Environmental Selenium Research: From Microscopic Processes to Global Understanding by Winkel, Lenny H. E, Johnson, C. Annette, Lenz, Markus, Grundl, Tim, Leupin, Olivier X, Amini, Manouchehr, Charlet, Laurent

“…Selenium is a natural trace element that is of fundamental importance to human health. The extreme geographical variation in selenium concentrations in soils…”
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Sorption of Sb(III) and Sb(V) to Goethite:  Influence on Sb(III) Oxidation and Mobilization by Leuz, Ann-Kathrin, Mönch, Hermann, Johnson, C. Annette

“…Antimony is an element of growing interest for a variety of industrial applications, even though Sb compounds are classified as priority pollutants by the…”
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Predicting groundwater arsenic contamination in Southeast Asia from surface parameters by Berg, Michael, Winkel, Lenny, Amini, Manouchehr, Hug, Stephan J, Annette Johnson, C

“…Arsenic contamination of groundwater resources threatens the health of millions of people worldwide, particularly in the densely populated river deltas of…”
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Uptake of Fluoride from Aqueous Solution on Nano-Sized Hydroxyapatite: Examination of a Fluoridated Surface Layer by Sternitzke, Vanessa, Kaegi, Ralf, Audinot, Jean-Nicolas, Lewin, Erik, Hering, Janet G, Johnson, C. Annette

“…Hydroxyapatite (Ca10(PO4)6(OH)2, HAP), both as a synthetic material and as a constituent of bone char, can serve as an effective and relatively inexpensive…”
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Statistical Modeling of Global Geogenic Fluoride Contamination in Groundwaters by Amini, Manouchehr, Mueller, Kim, Abbaspour, Karim C, Rosenberg, Thomas, Afyuni, Majid, Møller, Klaus N, Sarr, Mamadou, Johnson, C. Annette

“…The use of groundwater with high fluoride concentrations poses a health threat to millions of people around the world. This study aims at providing a global…”
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Statistical Modeling of Global Geogenic Arsenic Contamination in Groundwater by Amini, Manouchehr, Abbaspour, Karim C, Berg, Michael, Winkel, Lenny, Hug, Stephan J, Hoehn, Eduard, Yang, Hong, Johnson, C. Annette

“…Contamination of groundwaters with geogenic arsenic poses a major health risk to millions of people. Although the main geochemical mechanisms of arsenic…”
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Arsenic and Other Geogenic Contaminants in Groundwater - A Global Challenge by Hug, Stephan J, Winkel, Lenny H E, Voegelin, Andreas A, Berg, Michael, Johnson, C Annette

“…Groundwater is a much safer and more dependable source of drinking water than surface water. However, natural (geogenic) hazardous elements can contaminate…”
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Solubility of antimony and other elements in samples taken from shooting ranges by Johnson, C.A, Moench, H, Wersin, P, Kugler, P, Wenger, C

“…The aim of this study was to determine whether or not Sb and other elements (Ni, Cu, Bi, Tl, and Hg) originating from Pb alloy (2-5 wt. % Sb) bullets become…”
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A high-capacity aluminum hydroxide-based adsorbent for water defluoridation by Mulugeta, Eyobel, Zewge, Feleke, Annette Johnson, C., Chandravanshi, Bhagwan Singh

“…In this study, the properties and fluoride-uptake capacity of aluminum hydroxide-based (AO) adsorbent has been investigated. AO was synthesized, characterized,…”
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Predicting the risk of arsenic contaminated groundwater in Shanxi Province, Northern China by Zhang, Qiang, Rodríguez-Lado, Luis, Johnson, C. Annette, Xue, Hanbin, Shi, Jianbo, Zheng, Quanmei, Sun, Guifan

“…Shanxi Province is one of the regions in northern China where endemic arsenicosis occurs. In this study, stepwise logistic regression was applied to analyze…”
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Solid Solutions between CrO4- and SO4-Ettringite Ca6(Al(OH)6)2[(CrO4) x (SO4)1-x ]326 H2O by Leisinger, Sabine M, Lothenbach, Barbara, Saout, Gwenn Le, Kägi, Ralf, Wehrli, Bernhard, Johnson, C. Annette

“…Chromate is a toxic contaminant of potential concern, as it is quite soluble in the alkaline pH range and could be released to the environment. In cementitous…”
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Strontium hydroxyapatite and strontium carbonate as templates for the precipitation of calcium-phosphates in the absence and presence of fluoride by Sternitzke, Vanessa, Janousch, Markus, Heeb, Michèle B., Hering, Janet G., Johnson, C. Annette

“…The heterogeneous precipitation of calcium-phosphates on calcium hydroxyapatite (Ca10(PO4)6(OH)2 or HAP) in the presence and absence of fluoride is important…”
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Thermodynamic modeling of solid solutions between monosulfate and monochromate 3CaO • Al2O3 • Ca[(CrO4)X(SO4)1-X] • nH2O by LEISINGER, Sabine M, LOTHENBACH, Barbara, LE SAOUT, Gwenn, ANNETTE JOHNSON, C

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Sorption of Selenite and Selenate to Cement Minerals by Baur, Isabel, Johnson, C. Annette

“…The sorption of selenite and selenate to ettringite (3CaO·Al2O3·3CaSO4·32H2O), “monosulfate” (3CaO·Al2O3·CaSO4·12H2O), and calcium silicate hydrate (C−S−H) was…”
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Challenge of Micropollutants in Aquatic Systems by Schwarzenbach, René P, Escher, Beate I, Fenner, Kathrin, Hofstetter, Thomas B, Johnson, C. Annette, Gunten, Urs von, Wehrli, Bernhard

“…The increasing worldwide contamination of freshwater systems with thousands of industrial and natural chemical compounds is one of the key environmental…”
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Layered Double Hydroxide and Its Calcined Product for Fluoride Removal from Groundwater of Ethiopian Rift Valley by Dessalegne, Meseret, Zewge, Feleke, Pfenninger, Numa, Johnson, C. Annette, Diaz, Isabel

“…In this study, batch experiments have been carried out to investigate the mechanism of fluoride uptake by layered double hydroxide (LDH) and calcined layered…”
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Multi-criteria assessment of community-based fluoride-removal technologies for rural Ethiopia by Osterwalder, Lars, Johnson, C. Annette, Yang, Hong, Johnston, Richard B.

“…Elevated concentrations of naturally-occurring fluoride in groundwater pose a serious health risk to millions of people living in the Ethiopian Rift Valley. In…”
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Sorption Mechanisms of Zinc to Calcium Silicate Hydrate:  X-ray Absorption Fine Structure (XAFS) Investigation by Ziegler, Felix, Scheidegger, André M, Johnson, C. Annette, Dähn, Rainer, Wieland, Erich

“…In this study, X-ray absorption fine structure (XAFS) spectroscopy has been used to further elucidate the binding mechanisms of Zn(II) to calcium silicate…”
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Quantitative antimony speciation in shooting-range soils by EXAFS spectroscopy by Scheinost, Andreas C., Rossberg, Andre, Vantelon, Delphine, Xifra, Irene, Kretzschmar, Ruben, Leuz, Ann-Kathrin, Funke, Harald, Johnson, C. Annette

“…The Sb speciation in soil samples from Swiss shooting ranges was determined using Sb K-edge X-ray absorption spectroscopy (XAS) and advanced statistical data…”
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