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Istituto sull'inquinamento atmosferico

Torna all'elenco Contributi in rivista anno 2016

Contributo in rivista

Tipo: Articolo in rivista

Titolo: A Modeling Comparison of Mercury Deposition from Current Anthropogenic Mercury Emission Inventories

Anno di pubblicazione: 2016

Formato: Elettronico

Autori: Simone, Francesco De; Gencarelli, Christian N.; Hedgecock, Ian M.; Pirrone, Nicola

Affiliazioni autori: CNR-Institute of Atmospheric Pollution Research, Rende; CNR-Institute of Atmospheric Pollution Research, Rende

Autori CNR:

  • FRANCESCO DE SIMONE
  • CHRISTIAN NATALE GENCARELLI
  • IAN MICHAEL HEDGECOCK
  • NICOLA PIRRONE

Lingua: inglese

Abstract: Human activities have altered the biogeochemical cycle of mercury (Hg) since precolonial times, and anthropogenic activities will continue to perturb the natural cycle of Hg. Current estimates suggest the atmospheric burden is three to five times greater than precolonial times. Hg in the upper ocean is estimated to have doubled over the same period. The Minamata convention seeks to reduce the impact human activities have on Hg releases to the environment. A number of the Articles in the Convention concern the development of detailed inventories for Hg emissions and releases. Using the global Hg chemical transport model, ECHMERIT, the influence of the anthropogenic emission inventory (AMAP/UNEP, EDGAR, STREETS) on global Hg deposition patterns has been investigated. The results suggest that anthropogenic Hg emissions contribute 20-25% to present-day Hg deposition, and roughly two-thirds of primary anthropogenic Hg is deposited to the worlds oceans. Anthropogenic Hg deposition is significant in the North Pacific, Mediterranean and Arctic. The results indicate immediate reductions in Hg emissions would produce benefits in the short term, as well as in the long term. The most impacted regions would be suitable to assess changes in Hg deposition resulting from implementation of the Minamata convention.

Lingua abstract: inglese

Pagine da: 5154

Pagine a: 5162

Rivista:

Environmental science & technology American Chemical Society,
Paese di pubblicazione: Stati Uniti d'America
Lingua: inglese
ISSN: 0013-936X

Numero volume: 50

Numero fascicolo: 10

DOI: 10.1021/acs.est.6b00691

Referee: Sė: Internazionale

Stato della pubblicazione: Published version

Indicizzato da: Scopus [2-s2.0-84969879394]

Parole chiave:

  • Mercury Deposition
  • Anthropogenic Mercury Emission Inventories
  • models
  • Hg biogeochemical cycle

URL: http://pubs.acs.org/doi/pdf/10.1021/acs.est.6b00691

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