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dc.contributor.author
Daga, Romina Betiana  
dc.contributor.author
Ribeiro, Sergio  
dc.contributor.author
Pavlin, Majda  
dc.contributor.author
Rizzo, Andrea Paula  
dc.contributor.author
Lojen, Sonja  
dc.contributor.author
Vreca, Polona  
dc.contributor.author
Horvat, Milena  
dc.contributor.author
Arribere, Maria Angelica  
dc.date.available
2018-10-08T18:10:27Z  
dc.date.issued
2016-05  
dc.identifier.citation
Daga, Romina Betiana; Ribeiro, Sergio; Pavlin, Majda; Rizzo, Andrea Paula; Lojen, Sonja; et al.; Historical records of mercury in southern latitudes over 1600 years: Lake Futalaufquen, Northern Patagonia; Elsevier Science; Science of the Total Environment; 553; 5-2016; 541-550  
dc.identifier.issn
0048-9697  
dc.identifier.uri
http://hdl.handle.net/11336/61876  
dc.description.abstract
Mercury is released to the environment from natural and anthropogenic sources, and through atmospheric transport is distributed globally. Lake Futalaufquen (42.8°S) is an oligotrophic lake located in Los Alerces National Park (Northern Patagonia), providing a remote and unpolluted study system. A lacustrine sedimentary sequence revealed 1600 years of Hg deposition, identifying natural baselines and marked peaks not correlated with long-range atmospheric transport. Organic matter and catchment erosion were discarded as Hg drivers. Natural background, pre-1300 CE Hg concentrations, ranged between 27 and 47 ng g-1 (accumulation rates from 8 to 15 μg m-2 y-1). From 1300 CE on, the Hg background profile did not follow the generally increasing Hg pattern observed in both Southern and Northern Hemisphere since pre-industrial times. It was not until the last century that a 1.6-fold increase is observed in the Hg accumulation rate, considered among the lowest increments in southern South America. Noteworthy local/regional sources of Hg for this area, along with global transport, are forest fires and volcanic activity. Between approx. 1340 and 1510 CE, sharp increase in Hg concentration and accumulation rate (up to 204 ng g-1 and 51 μg m-2 y-1, respectively) were clearly associated with extended fire episodes. Furthermore, high Hg peaks during the last 300 years were associated with volcanic eruptions in northernmost Patagonia together with fairly irregular fire episodes, caused by anthropogenic burning by settling population in the Andes.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Elsevier Science  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Argentina  
dc.subject
Atmospheric Deposition  
dc.subject
Fires  
dc.subject
Global Pollutant  
dc.subject
Lakes  
dc.subject
Volcanism  
dc.subject.classification
Meteorología y Ciencias Atmosféricas  
dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
Historical records of mercury in southern latitudes over 1600 years: Lake Futalaufquen, Northern Patagonia  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2018-10-04T16:22:59Z  
dc.journal.volume
553  
dc.journal.pagination
541-550  
dc.journal.pais
Países Bajos  
dc.journal.ciudad
Amsterdam  
dc.description.fil
Fil: Daga, Romina Betiana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina  
dc.description.fil
Fil: Ribeiro, Sergio. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina  
dc.description.fil
Fil: Pavlin, Majda. Jožef Stefan Institute; Eslovenia  
dc.description.fil
Fil: Rizzo, Andrea Paula. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina  
dc.description.fil
Fil: Lojen, Sonja. Jožef Stefan Institute; Eslovenia. University of Nova Gorica; Eslovenia  
dc.description.fil
Fil: Vreca, Polona. Jožef Stefan Institute; Eslovenia  
dc.description.fil
Fil: Horvat, Milena. Jožef Stefan Institute; Eslovenia  
dc.description.fil
Fil: Arribere, Maria Angelica. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina  
dc.journal.title
Science of the Total Environment  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1016/j.scitotenv.2016.02.114  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0048969716303242