Zobrazeno 1 - 10 of 505 pro vyhledávání: '"E Gratz"'
1
Akademický článek
Elevated oxidized mercury in the free troposphere: analytical advances and application at a remote continental mountaintop site
Autor: E. J. Derry, T. R. Elgiar, T. Y. Wilmot, N. W. Hoch, N. S. Hirshorn, P. Weiss-Penzias, C. F. Lee, J. C. Lin, A. G. Hallar, R. Volkamer, S. N. Lyman, L. E. Gratz
Publikováno v: Atmospheric Chemistry and Physics, Vol 24, Pp 9615-9643 (2024)
Mercury (Hg) is a global atmospheric pollutant. In its oxidized form (HgII), it can readily deposit to ecosystems, where it may bioaccumulate and cause severe health effects. High HgII concentrations are reported in the free troposphere, but spatiote
Externí odkaz: https://doaj.org/article/cb19f13e4cde49cc9c8a26b3a78b8980
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2
Akademický článek
Elevated Tropospheric Iodine Over the Central Continental United States: Is Iodine a Major Oxidant of Atmospheric Mercury?
Autor: C. F. Lee, T. Elgiar, L. M. David, T. Y. Wilmot, M. Reza, N. Hirshorn, I. B. McCubbin, V. Shah, J. C. Lin, S. N. Lyman, A. G. Hallar, L. E. Gratz, R. Volkamer
Publikováno v: Geophysical Research Letters, Vol 51, Iss 17, Pp n/a-n/a (2024)
Abstract Previous efforts to measure atmospheric iodine have focused on marine and coastal regions. We report the first ground‐based tropospheric iodine monoxide (IO) radical observations over the central continental United States. Throughout April
Externí odkaz: https://doaj.org/article/5682a92a86d349ccaa4407c302529438
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3
Akademický článek
Multi-model study of mercury dispersion in the atmosphere: vertical and interhemispheric distribution of mercury species
Autor: J. Bieser, F. Slemr, J. Ambrose, C. Brenninkmeijer, S. Brooks, A. Dastoor, F. DeSimone, R. Ebinghaus, C. N. Gencarelli, B. Geyer, L. E. Gratz, I. M. Hedgecock, D. Jaffe, P. Kelley, C.-J. Lin, L. Jaegle, V. Matthias, A. Ryjkov, N. E. Selin, S. Song, O. Travnikov, A. Weigelt, W. Luke, X. Ren, A. Zahn, X. Yang, Y. Zhu, N. Pirrone
Publikováno v: Atmospheric Chemistry and Physics, Vol 17, Pp 6925-6955 (2017)
Atmospheric chemistry and transport of mercury play a key role in the global mercury cycle. However, there are still considerable knowledge gaps concerning the fate of mercury in the atmosphere. This is the second part of a model intercomparison s
Externí odkaz: https://doaj.org/article/b5577d68f01c450db856231e7f715176
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4
Akademický článek
Origin of oxidized mercury in the summertime free troposphere over the southeastern US
Autor: V. Shah, L. Jaeglé, L. E. Gratz, J. L. Ambrose, D. A. Jaffe, N. E. Selin, S. Song, T. L. Campos, F. M. Flocke, M. Reeves, D. Stechman, M. Stell, J. Festa, J. Stutz, A. J. Weinheimer, D. J. Knapp, D. D. Montzka, G. S. Tyndall, E. C. Apel, R. S. Hornbrook, A. J. Hills, D. D. Riemer, N. J. Blake, C. A. Cantrell, R. L. Mauldin III
Publikováno v: Atmospheric Chemistry and Physics, Vol 16, Pp 1511-1530 (2016)
We collected mercury observations as part of the Nitrogen, Oxidants, Mercury, and Aerosol Distributions, Sources, and Sinks (NOMADSS) aircraft campaign over the southeastern US between 1 June and 15 July 2013. We use the GEOS-Chem chemical transpo
Externí odkaz: https://doaj.org/article/3d8808f5b751407682014f59954b5655
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6
Akademický článek
Ambient Mercury Observations near a Coal-Fired Power Plant in a Western U.S. Urban Area
Autor: Lynne E. Gratz, Chris S. Eckley, Story J. Schwantes, Erick Mattson
Publikováno v: Atmosphere, Vol 10, Iss 4, p 176 (2019)
We report on the continuous ambient measurements of total gaseous mercury (TGM) and several ancillary air quality parameters that were collected in Colorado Springs, CO. This urban area, which is located adjacent to the Front Range of the Rocky Mount
Externí odkaz: https://doaj.org/article/3e00195f66384f87b417a90701f16968
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7
Akademický článek
Constraints from observations and modeling on atmosphere–surface exchange of mercury in eastern North America
Autor: Shaojie Song, Noelle E. Selin, Lynne E. Gratz, Jesse L. Ambrose, Daniel A. Jaffe, Viral Shah, Lyatt Jaeglé, Amanda Giang, Bin Yuan, Lisa Kaser, Eric C. Apel, Rebecca S. Hornbrook, Nicola J. Blake, Andrew J. Weinheimer, Roy L. Mauldin III, Christopher A. Cantrell, Mark S. Castro, Gary Conley, Thomas M. Holsen, Winston T. Luke, Robert Talbot
Publikováno v: Elementa: Science of the Anthropocene (2016)
Abstract Atmosphere–surface exchange of mercury, although a critical component of its global cycle, is currently poorly constrained. Here we use the GEOS-Chem chemical transport model to interpret atmospheric Hg0 (gaseous elemental mercury) data co
Externí odkaz: https://doaj.org/article/ef588b2cd96c4db1862b02ace5abaf0f
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8
Contrasting Controls on the Diel Isotopic Variation of Hg0 at Two High Elevation Sites in the Western United States
Autor: Joel D. Blum, Aaron Y. Kurz, Daniel A. Jaffe, Lynne E. Gratz
Publikováno v: Environmental Science & Technology. 54:10502-10513
The atmosphere is a significant global reservoir for mercury (Hg) and its isotopic characterization is important to understand sources, distribution, and deposition of Hg to the Earth’s surface. To...
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::90e62ea8228fc1d13d418243cfc230d2
https://doi.org/10.1021/acs.est.0c01918
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