Search Results - "Horowitz, Hannah M"

Total Mercury Released to the Environment by Human Activities by Streets, David G, Horowitz, Hannah M, Jacob, Daniel J, Lu, Zifeng, Levin, Leonard, ter Schure, Arnout F. H, Sunderland, Elsie M

“…We estimate that a cumulative total of 1540 (1060–2800) Gg (gigagrams, 109 grams or thousand tonnes) of mercury (Hg) have been released by human activities up…”
Get full text

Observed decrease in atmospheric mercury explained by global decline in anthropogenic emissions by Zhang, Yanxu, Jacob, Daniel J., Horowitz, Hannah M., Chen, Long, Amos, Helen M., Krabbenhoft, David P., Slemr, Franz, St. Louis, Vincent L., Sunderland, Elsie M.

“…Observations of elemental mercury (Hg⁰) at sites in North America and Europe show large decreases (∼1–2% y⁻¹) from 1990 to present. Observations in background…”
Get full text

A new mechanism for atmospheric mercury redox chemistry: implications for the global mercury budget by Horowitz, Hannah M, Jacob, Daniel J, Zhang, Yanxu, Dibble, Theodore S, Slemr, Franz, Amos, Helen M, Schmidt, Johan A, Corbitt, Elizabeth S, Marais, Eloïse A, Sunderland, Elsie M

“…Mercury (Hg) is emitted to the atmosphere mainly as volatile elemental Hg0. Oxidation to water-soluble HgII plays a major role in Hg deposition to ecosystems…”
Get full text

Historical Mercury Releases from Commercial Products: Global Environmental Implications by Horowitz, Hannah M, Jacob, Daniel J, Amos, Helen M, Streets, David G, Sunderland, Elsie M

“…The intentional use of mercury (Hg) in products and processes (“commercial Hg”) has contributed a large and previously unquantified anthropogenic source of Hg…”
Get full text

Five hundred years of anthropogenic mercury: spatial and temporal release profiles by Streets, David G, Horowitz, Hannah M, Lu, Zifeng, Levin, Leonard, Thackray, Colin P, Sunderland, Elsie M

“…Abstract When released to the biosphere, mercury (Hg) is very mobile and can take millennia to be returned to a secure, long-term repository. Understanding…”
Get full text

Effects of Sea Salt Aerosol Emissions for Marine Cloud Brightening on Atmospheric Chemistry: Implications for Radiative Forcing by Horowitz, Hannah M., Holmes, Christopher, Wright, Alicia, Sherwen, Tomás, Wang, Xuan, Evans, Mat, Huang, Jiayue, Jaeglé, Lyatt, Chen, Qianjie, Zhai, Shuting, Alexander, Becky

“…Marine cloud brightening (MCB) is proposed to offset global warming by emitting sea salt aerosols to the tropical marine boundary layer, which increases…”
Get full text

Global and regional trends in mercury emissions and concentrations, 2010–2015 by Streets, David G., Horowitz, Hannah M., Lu, Zifeng, Levin, Leonard, Thackray, Colin P., Sunderland, Elsie M.

“…Mercury (Hg) is a naturally occurring element in the Earth's crust. It can be harmful to human health when released in large quantities and/or converted to the…”
Get full text

Global Biogeochemical Implications of Mercury Discharges from Rivers and Sediment Burial by Amos, Helen M, Jacob, Daniel J, Kocman, David, Horowitz, Hannah M, Zhang, Yanxu, Dutkiewicz, Stephanie, Horvat, Milena, Corbitt, Elizabeth S, Krabbenhoft, David P, Sunderland, Elsie M

“…Rivers are an important source of mercury (Hg) to marine ecosystems. Based on an analysis of compiled observations, we estimate global present-day Hg…”
Get full text

Observational and Modeling Constraints on Global Anthropogenic Enrichment of Mercury by Amos, Helen M, Sonke, Jeroen E, Obrist, Daniel, Robins, Nicholas, Hagan, Nicole, Horowitz, Hannah M, Mason, Robert P, Witt, Melanie, Hedgecock, Ian M, Corbitt, Elizabeth S, Sunderland, Elsie M

“…Centuries of anthropogenic releases have resulted in a global legacy of mercury (Hg) contamination. Here we use a global model to quantify the impact of…”
Get full text

Evaluation of climate model aerosol seasonal and spatial variability over Africa using AERONET by Horowitz, Hannah M, Garland, Rebecca M, Thatcher, Marcus, Landman, Willem A, Dedekind, Zane, van der Merwe, Jacobus, Engelbrecht, Francois A

“…The sensitivity of climate models to the characterization of African aerosol particles is poorly understood. Africa is a major source of dust and biomass…”
Get full text

A decline in Arctic Ocean mercury suggested by differences in decadal trends of atmospheric mercury between the Arctic and northern midlatitudes by Chen, Long, Zhang, Yanxu, Jacob, Daniel J., Soerensen, Anne L., Fisher, Jenny A., Horowitz, Hannah M., Corbitt, Elizabeth S., Wang, Xuejun

“…Atmospheric mercury (Hg) in the Arctic shows much weaker or insignificant annual declines relative to northern midlatitudes over the past decade (2000–2009)…”
Get full text

Historical (1850–2010) mercury stable isotope inventory from anthropogenic sources to the atmosphere by Sun, Ruoyu, Streets, David G., Horowitz, Hannah M., Amos, Helen M., Liu, Guijian, Perrot, Vincent, Toutain, Jean-Paul, Hintelmann, Holger, Sunderland, Elsie M., Sonke, Jeroen E.

“…Abstract Mercury (Hg) stable isotopes provide a new tool to trace the biogeochemical cycle of Hg. An inventory of the isotopic composition of historical…”
Get full text

Global and regional trends in mercury emissions and concentrations, 2010–2015 by Streets, David G., Horowitz, Hannah M., Lu, Zifeng, Levin, Leonard, Thackray, Colin P., Sunderland, Elsie M.

“…Mercury (Hg) is a naturally occurring element in the Earth's crust. It can be harmful to human health when released in large quantities and/or converted to the…”
Get full text

Five hundred years of anthropogenic mercury: spatial and temporal release profiles The submitted manuscript has been created by UChicago Argonne, LLC, Operator of Argonne National Laboratory ('Argonne'). Argonne, a US Department of Energy Office of Science laboratory, is operated under Contract No. DE-AC02-06CH11357. The US Government retains for itself, and others acting on its behalf, a paid-up nonexclusive, irrevocable worldwide license in said article to reproduce, prepare derivative works, by Streets, David G, Horowitz, Hannah M, Lu, Zifeng, Levin, Leonard, Thackray, Colin P, Sunderland, Elsie M

“…When released to the biosphere, mercury (Hg) is very mobile and can take millennia to be returned to a secure, long-term repository. Understanding where and…”
Get full text