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Five-year records of mercury wet deposition flux at GMOS sites in the Northern and Southern hemispheres
IVL Swedish Environmental Research Institute.
IVL Swedish Environmental Research Institute.
IVL Swedish Environmental Research Institute.
IVL Swedish Environmental Research Institute.
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2017 (English)In: Atmospheric Chemistry And Physics, ISSN 1680-7316, E-ISSN 1680-7324, Vol. 17, p. 2689-2708Article in journal (Refereed) Published
Abstract [en]

The atmospheric deposition of mercury (Hg) occurs via several mechanisms, including dry and wet scavenging by precipitation events. In an effort to understand the atmospheric cycling and seasonal depositional characteristics of Hg, wet deposition samples were collected for approximately 5 years at 17 selected GMOS monitoring sites located in the Northern and Southern hemispheres in the framework of the Global Mercury Observation System (GMOS) project.

Total mercury (THg) exhibited annual and seasonal patterns in Hg wet deposition samples. Interannual differences in total wet deposition are mostly linked with precipitation volume, with the greatest deposition flux occurring in the wettest years. This data set provides a new insight into baseline concentrations of THg concentrations in precipitation worldwide, particularly in regions such as the Southern Hemisphere and tropical areas where wet deposition as well as atmospheric Hg species were not investigated before, opening the way for future and additional simultaneous measurements across the GMOS network as well as new findings in future modeling studies.

Place, publisher, year, edition, pages
2017. Vol. 17, p. 2689-2708
Identifiers
URN: urn:nbn:se:ivl:diva-3748DOI: 10.5194/acp-17-2689-2017OAI: oai:DiVA.org:ivl-3748DiVA, id: diva2:1572959
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A-rapport, A2249Available from: 2021-06-24 Created: 2021-06-24

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Hageström, UllaHansson, KatarinaSpandow, PiaMunthe, JohnWängberg, Ingvar
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  • asciidoc
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