Results 21 to 30 of about 1,136,821 (226)

X-ray fluorescence mapping of mercury on suspended mineral particles and diatoms in a contaminated freshwater system [PDF]

Biogeosciences, 2014
Mercury (Hg) bioavailability and geochemical cycling is affected by its partitioning between the aqueous and particulate phases. We applied a synchrotron-based X-ray fluorescence (XRF) microprobe to visualize and quantify directly the spatial ...
B. Gu, B. Mishra, C. Miller, W. Wang, B. Lai, S. C. Brooks, K. M. Kemner, L. Liang   +7 more
doaj   +1 more source

Transformations of mercury in processes of solid fuel combustion – review

Archives of Environmental Protection, 2017
The paper presents current reports on kinetics and mechanisms of reactions with mercury which take place in the exhaust gases, discharged from the processes of combustion of solid fuels (coals). The three main stages were considered.
Czaplicka Marianna, Pyta Halina
doaj   +1 more source

Solar‐driven co‐evolution of H2 and H2O2 from pure water splitting over emerging photocatalysts: Detailed mechanism and future outlook

PhotoMat, EarlyView., 2023
Photocatalytic water splitting for co‐evolution of H2 and H2O2 is deemed as a sustainable and promising strategy to address energy and environment issues, thus receiving increasing attention and realizing continuous achievements. This review aims to offer a deep understanding of the mechanism for H2 and H2O2 co‐evolution and the design principle of ...
Qiaohong Zhu, Jiaqi Wu, Mengmeng Du, Ning Zhang, Bocheng Qiu   +4 more
wiley   +1 more source

An overview of atmospheric mercury monitoring at Auchencorth Moss, the UK EMEP Supersite in southern Scotland: trends, patterns and a source analysis

E3S Web of Conferences, 2013
Speciated atmospheric mercury has been measures semi-continuously at the Auchencorth Moss field site in southern Scotland since 2004. Here we present an analysis of the data from 2009 to 2011 for the three species: elemental, gaseous oxidized (GOM) and ...
Kentisbeer J., Leeson S., Malcolm H., Leith I., Cape J. N.   +4 more
doaj   +1 more source

Long-Term Observations of Atmospheric Speciated Mercury at a Coastal Site in the Northern Gulf of Mexico during 2007–2018

Atmosphere, 2020
Atmospheric mercury species (gaseous elemental mercury (GEM), gaseous oxidized mercury (GOM), and particulate-bound mercury (PBM)), trace pollutants (O3, SO2, CO, NO, NOY, and black carbon), and meteorological parameters have been continuously measured ...
Xinrong Ren, Winston T. Luke, Paul Kelley, Mark D. Cohen, Mark L. Olson, Jake Walker, Ronald Cole, Michael Archer, Richard Artz, Ariel A. Stein   +9 more
doaj   +1 more source

Gas-particle partitioning of atmospheric Hg(II) and its effect on global mercury deposition [PDF]

Atmospheric Chemistry and Physics, 2012
Atmospheric deposition of Hg(II) represents a major input of mercury to surface environments. The phase of Hg(II) (gas or particle) has important implications for deposition.
H. M. Amos, D. J. Jacob, C. D. Holmes, J. A. Fisher, Q. Wang, R. M. Yantosca, E. S. Corbitt, E. Galarneau, A. P. Rutter, M. S. Gustin, A. Steffen, J. J. Schauer, J. A. Graydon, V. L. St. Louis, R. W. Talbot, E. S. Edgerton, Y. Zhang, E. M. Sunderland   +17 more
doaj   +1 more source

Comparison of Atmospheric Mercury Speciation at a Coastal and an Urban Site in Southeastern Texas, USA

Atmosphere, 2020
Sixteen months of continuous measurements and the analysis of atmospheric mercury (gaseous elemental mercury GEM, gaseous oxidized mercury GOM, and particulate bound mercury PBM) under urban and coastal settings were conducted in Southeastern Texas.
Travis Griggs, Lei Liu, Robert W. Talbot, Azucena Torres, Xin Lan   +4 more
doaj   +1 more source

Atmospheric speciated mercury concentrations on an island between China and Korea: sources and transport pathways [PDF]

Atmospheric Chemistry and Physics, 2016
As a global pollutant, mercury (Hg) is of particular concern in East Asia, where anthropogenic emissions are the largest. In this study, speciated Hg concentrations were measured on Yongheung Island, the westernmost island in Korea, located between ...
G.-S. Lee, P.-R. Kim, Y.-J. Han, T. M. Holsen, Y.-S. Seo, Y.-S. Seo, S.-M. Yi   +6 more
doaj   +1 more source

Evaluation of various methods to measure particulate bound mercury and associated artifacts [PDF]

, 2013
Abstract. This study was performed to determine how sampling artifacts associated with various sampling methods including open faced filter (OFF) pack, micro orifice uniform deposit impactor (MOUDI), and Tekran speciation system (TekSpec) impact particulate bound mercury (PBM) measurements.
Wang, S., Holsen, T. M., Huang, J., Han, Y.-J.   +3 more
openaire   +2 more sources

Chlor-alkali industrial contamination and riverine transport of mercury: Distribution and partitioning of mercury between water, suspended matter, and bottom sediment of the Thur River, France [PDF]

, 2006
Total dissolved and total particulate Hg mass balances were estimated during one hydrological period (July 2001–June 2002) in the Thur River basin, which is heavily polluted by chlor-alkali industrial activity.
Probst, Jean-Luc, Hissler, Christophe
core   +1 more source