Global Concentrations of Gaseous Elemental Mercury and Reactive Gaseous Mercury in the Marine Boundary Layer
Gaseous elemental mercury (GEM) and reactive gaseous mercury (RGM) were measured during an eight month circumnavigation to obtain knowledge of their worldwide distributions in the marine boundary layer (MBL). Background GEM concentrations were found to be \(1.32 \pm 0.2 ng/m^3\) (summer) and \(2.62...
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ftharvardudash:oai:dash.harvard.edu:1/33490486 2023-05-15T13:36:21+02:00 Global Concentrations of Gaseous Elemental Mercury and Reactive Gaseous Mercury in the Marine Boundary Layer Soerensen, Anne L. Skov, Henrik Jacob, Daniel J. Soerensen, Britt T. Johnson, Matthew S. 2010 application/pdf http://nrs.harvard.edu/urn-3:HUL.InstRepos:33490486 https://doi.org/10.1021/es903839n en_US eng American Chemical Society (ACS) doi:10.1021/es903839n http://www.ncbi.nlm.nih.gov/pubmed/20822101 Environmental Science & Technology Soerensen, Anne L., Henrik Skov, Daniel J. Jacob, Britt T. Soerensen, and Matthew S. Johnson. 2010. Global Concentrations of Gaseous Elemental Mercury and Reactive Gaseous Mercury in the Marine Boundary Layer. Environmental Science & Technology 44, no. 19: 7425–7430. doi:10.1021/es903839n. http://dx.doi.org/10.1021/es903839n.Soerensen, Anne L., Henrik Skov, Daniel J. Jacob, Britt T. Soerensen, and Matthew S. Johnson. 2010. Global Concentrations of Gaseous Elemental Mercury and Reactive Gaseous Mercury in the Marine Boundary Layer. Environmental Science & Technology 44, no. 19: 7425–7430. doi:10.1021/es903839n. 0013-936X 1520-5851 http://nrs.harvard.edu/urn-3:HUL.InstRepos:33490486 Journal Article 2010 ftharvardudash https://doi.org/10.1021/es903839n 2022-04-04T12:47:08Z Gaseous elemental mercury (GEM) and reactive gaseous mercury (RGM) were measured during an eight month circumnavigation to obtain knowledge of their worldwide distributions in the marine boundary layer (MBL). Background GEM concentrations were found to be \(1.32 \pm 0.2 ng/m^3\) (summer) and \(2.62 \pm 0.4 ng/m^3\) (spring) in the northern hemisphere and \(1.27 \pm 0.2 ng/m^3\) (spring and summer) in the southern hemisphere. Radiation and relative humidity are shown to control diurnal cycles of RGM. During the cruise the ship passed areas of clean MBL air, air influenced by biomass burning (South Atlantic) and air with high concentrations of GEM and RGM of unknown origin (Antarctic). High GEM concentrations above the Atlantic indicate that emission from the ocean can be an important GEM source. Our data combined with data from earlier cruises provides adequate information to establish a seasonal cycle for the Atlantic. Results show a cycle similar to that found at Mace Head, Ireland but with larger amplitude. We have improved the basic knowledge of mean GEM and RGM concentrations in the MBL worldwide and shown how natural sources and reemissions can affect GEM concentrations in the MBL. Engineering and Applied Sciences Version of Record Article in Journal/Newspaper Antarc* Antarctic Harvard University: DASH - Digital Access to Scholarship at Harvard Antarctic Mace ENVELOPE(155.883,155.883,-81.417,-81.417) Environmental Science & Technology 44 19 7425 7430 |
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Open Polar |
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Harvard University: DASH - Digital Access to Scholarship at Harvard |
op_collection_id |
ftharvardudash |
language |
English |
description |
Gaseous elemental mercury (GEM) and reactive gaseous mercury (RGM) were measured during an eight month circumnavigation to obtain knowledge of their worldwide distributions in the marine boundary layer (MBL). Background GEM concentrations were found to be \(1.32 \pm 0.2 ng/m^3\) (summer) and \(2.62 \pm 0.4 ng/m^3\) (spring) in the northern hemisphere and \(1.27 \pm 0.2 ng/m^3\) (spring and summer) in the southern hemisphere. Radiation and relative humidity are shown to control diurnal cycles of RGM. During the cruise the ship passed areas of clean MBL air, air influenced by biomass burning (South Atlantic) and air with high concentrations of GEM and RGM of unknown origin (Antarctic). High GEM concentrations above the Atlantic indicate that emission from the ocean can be an important GEM source. Our data combined with data from earlier cruises provides adequate information to establish a seasonal cycle for the Atlantic. Results show a cycle similar to that found at Mace Head, Ireland but with larger amplitude. We have improved the basic knowledge of mean GEM and RGM concentrations in the MBL worldwide and shown how natural sources and reemissions can affect GEM concentrations in the MBL. Engineering and Applied Sciences Version of Record |
format |
Article in Journal/Newspaper |
author |
Soerensen, Anne L. Skov, Henrik Jacob, Daniel J. Soerensen, Britt T. Johnson, Matthew S. |
spellingShingle |
Soerensen, Anne L. Skov, Henrik Jacob, Daniel J. Soerensen, Britt T. Johnson, Matthew S. Global Concentrations of Gaseous Elemental Mercury and Reactive Gaseous Mercury in the Marine Boundary Layer |
author_facet |
Soerensen, Anne L. Skov, Henrik Jacob, Daniel J. Soerensen, Britt T. Johnson, Matthew S. |
author_sort |
Soerensen, Anne L. |
title |
Global Concentrations of Gaseous Elemental Mercury and Reactive Gaseous Mercury in the Marine Boundary Layer |
title_short |
Global Concentrations of Gaseous Elemental Mercury and Reactive Gaseous Mercury in the Marine Boundary Layer |
title_full |
Global Concentrations of Gaseous Elemental Mercury and Reactive Gaseous Mercury in the Marine Boundary Layer |
title_fullStr |
Global Concentrations of Gaseous Elemental Mercury and Reactive Gaseous Mercury in the Marine Boundary Layer |
title_full_unstemmed |
Global Concentrations of Gaseous Elemental Mercury and Reactive Gaseous Mercury in the Marine Boundary Layer |
title_sort |
global concentrations of gaseous elemental mercury and reactive gaseous mercury in the marine boundary layer |
publisher |
American Chemical Society (ACS) |
publishDate |
2010 |
url |
http://nrs.harvard.edu/urn-3:HUL.InstRepos:33490486 https://doi.org/10.1021/es903839n |
long_lat |
ENVELOPE(155.883,155.883,-81.417,-81.417) |
geographic |
Antarctic Mace |
geographic_facet |
Antarctic Mace |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
doi:10.1021/es903839n http://www.ncbi.nlm.nih.gov/pubmed/20822101 Environmental Science & Technology Soerensen, Anne L., Henrik Skov, Daniel J. Jacob, Britt T. Soerensen, and Matthew S. Johnson. 2010. Global Concentrations of Gaseous Elemental Mercury and Reactive Gaseous Mercury in the Marine Boundary Layer. Environmental Science & Technology 44, no. 19: 7425–7430. doi:10.1021/es903839n. http://dx.doi.org/10.1021/es903839n.Soerensen, Anne L., Henrik Skov, Daniel J. Jacob, Britt T. Soerensen, and Matthew S. Johnson. 2010. Global Concentrations of Gaseous Elemental Mercury and Reactive Gaseous Mercury in the Marine Boundary Layer. Environmental Science & Technology 44, no. 19: 7425–7430. doi:10.1021/es903839n. 0013-936X 1520-5851 http://nrs.harvard.edu/urn-3:HUL.InstRepos:33490486 |
op_doi |
https://doi.org/10.1021/es903839n |
container_title |
Environmental Science & Technology |
container_volume |
44 |
container_issue |
19 |
container_start_page |
7425 |
op_container_end_page |
7430 |
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1766077528704811008 |