Mercury isotope signatures as tracers for Hg cycling at the New Idria Hg mine.
Identifieur interne : 002595 ( Main/Exploration ); précédent : 002594; suivant : 002596Mercury isotope signatures as tracers for Hg cycling at the New Idria Hg mine.
Auteurs : Jan G. Wiederhold [Suisse] ; Robin S. Smith ; Hagar Siebner ; Adam D. Jew ; Gordon E. Brown ; Bernard Bourdon ; Ruben KretzschmarSource :
- Environmental science & technology [ 1520-5851 ] ; 2013.
Descripteurs français
- KwdFr :
- MESH :
- analyse : Isotopes du mercure, Mercure.
- Mine, États-Unis.
- Wicri :
- geographic : États-Unis.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Mercury, Mercury Isotopes.
- geographic : United States.
- Mining.
Abstract
Mass-dependent fractionation (MDF) and mass-independent fractionation (MIF) of Hg isotopes provides a new tool for tracing Hg in contaminated environments such as mining sites, which represent major point sources of Hg pollution into surrounding ecosystems. Here, we present Hg isotope ratios of unroasted ore waste, calcine (roasted ore), and poplar leaves collected at a closed Hg mine (New Idria, CA, U.S.A.). Unroasted ore waste was isotopically uniform with δ(202)Hg values from -0.09 to 0.16‰ (± 0.10‰, 2 SD), close to the estimated initial composition of the HgS ore (-0.26‰). In contrast, calcine samples exhibited variable δ(202)Hg values ranging from -1.91‰ to +2.10‰. Small MIF signatures in the calcine were consistent with nuclear volume fractionation of Hg isotopes during or after the roasting process. The poplar leaves exhibited negative MDF (-3.18 to -1.22‰) and small positive MIF values (Δ(199)Hg of 0.02 to 0.21‰). Sequential extractions combined with Hg isotope analysis revealed higher δ(202)Hg values for the more soluble Hg pools in calcines compared with residual HgS phases. Our data provide novel insights into possible in situ transformations of Hg phases and suggest that isotopically heavy secondary Hg phases were formed in the calcine, which will influence the isotope composition of Hg leached from the site.
DOI: 10.1021/es305245z
PubMed: 23662941
Affiliations:
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Smith</name></author><author><name sortKey="Siebner, Hagar" sort="Siebner, Hagar" uniqKey="Siebner H" first="Hagar" last="Siebner">Hagar Siebner</name></author><author><name sortKey="Jew, Adam D" sort="Jew, Adam D" uniqKey="Jew A" first="Adam D" last="Jew">Adam D. Jew</name></author><author><name sortKey="Brown, Gordon E" sort="Brown, Gordon E" uniqKey="Brown G" first="Gordon E" last="Brown">Gordon E. Brown</name></author><author><name sortKey="Bourdon, Bernard" sort="Bourdon, Bernard" uniqKey="Bourdon B" first="Bernard" last="Bourdon">Bernard Bourdon</name></author><author><name sortKey="Kretzschmar, Ruben" sort="Kretzschmar, Ruben" uniqKey="Kretzschmar R" first="Ruben" last="Kretzschmar">Ruben Kretzschmar</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2013">2013</date><idno type="RBID">pubmed:23662941</idno><idno type="pmid">23662941</idno><idno type="doi">10.1021/es305245z</idno><idno type="wicri:Area/Main/Corpus">002605</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">002605</idno><idno type="wicri:Area/Main/Curation">002605</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">002605</idno><idno type="wicri:Area/Main/Exploration">002605</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Mercury isotope signatures as tracers for Hg cycling at the New Idria Hg mine.</title><author><name sortKey="Wiederhold, Jan G" sort="Wiederhold, Jan G" uniqKey="Wiederhold J" first="Jan G" last="Wiederhold">Jan G. 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Brown</name></author><author><name sortKey="Bourdon, Bernard" sort="Bourdon, Bernard" uniqKey="Bourdon B" first="Bernard" last="Bourdon">Bernard Bourdon</name></author><author><name sortKey="Kretzschmar, Ruben" sort="Kretzschmar, Ruben" uniqKey="Kretzschmar R" first="Ruben" last="Kretzschmar">Ruben Kretzschmar</name></author></analytic><series><title level="j">Environmental science & technology</title><idno type="eISSN">1520-5851</idno><imprint><date when="2013" type="published">2013</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Mercury (analysis)</term><term>Mercury Isotopes (analysis)</term><term>Mining (MeSH)</term><term>United States (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Isotopes du mercure (analyse)</term><term>Mercure (analyse)</term><term>Mine (MeSH)</term><term>États-Unis (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Mercury</term><term>Mercury Isotopes</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>United States</term></keywords><keywords scheme="MESH" qualifier="analyse" xml:lang="fr"><term>Isotopes du mercure</term><term>Mercure</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Mining</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Mine</term><term>États-Unis</term></keywords><keywords scheme="Wicri" type="geographic" xml:lang="fr"><term>États-Unis</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Mass-dependent fractionation (MDF) and mass-independent fractionation (MIF) of Hg isotopes provides a new tool for tracing Hg in contaminated environments such as mining sites, which represent major point sources of Hg pollution into surrounding ecosystems. Here, we present Hg isotope ratios of unroasted ore waste, calcine (roasted ore), and poplar leaves collected at a closed Hg mine (New Idria, CA, U.S.A.). Unroasted ore waste was isotopically uniform with δ(202)Hg values from -0.09 to 0.16‰ (± 0.10‰, 2 SD), close to the estimated initial composition of the HgS ore (-0.26‰). In contrast, calcine samples exhibited variable δ(202)Hg values ranging from -1.91‰ to +2.10‰. Small MIF signatures in the calcine were consistent with nuclear volume fractionation of Hg isotopes during or after the roasting process. The poplar leaves exhibited negative MDF (-3.18 to -1.22‰) and small positive MIF values (Δ(199)Hg of 0.02 to 0.21‰). Sequential extractions combined with Hg isotope analysis revealed higher δ(202)Hg values for the more soluble Hg pools in calcines compared with residual HgS phases. Our data provide novel insights into possible in situ transformations of Hg phases and suggest that isotopically heavy secondary Hg phases were formed in the calcine, which will influence the isotope composition of Hg leached from the site.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">23662941</PMID><DateCompleted><Year>2014</Year><Month>03</Month><Day>20</Day></DateCompleted><DateRevised><Year>2013</Year><Month>06</Month><Day>18</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1520-5851</ISSN><JournalIssue CitedMedium="Internet"><Volume>47</Volume><Issue>12</Issue><PubDate><Year>2013</Year><Month>Jun</Month><Day>18</Day></PubDate></JournalIssue><Title>Environmental science & technology</Title><ISOAbbreviation>Environ Sci Technol</ISOAbbreviation></Journal><ArticleTitle>Mercury isotope signatures as tracers for Hg cycling at the New Idria Hg mine.</ArticleTitle><Pagination><MedlinePgn>6137-45</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1021/es305245z</ELocationID><Abstract><AbstractText>Mass-dependent fractionation (MDF) and mass-independent fractionation (MIF) of Hg isotopes provides a new tool for tracing Hg in contaminated environments such as mining sites, which represent major point sources of Hg pollution into surrounding ecosystems. Here, we present Hg isotope ratios of unroasted ore waste, calcine (roasted ore), and poplar leaves collected at a closed Hg mine (New Idria, CA, U.S.A.). Unroasted ore waste was isotopically uniform with δ(202)Hg values from -0.09 to 0.16‰ (± 0.10‰, 2 SD), close to the estimated initial composition of the HgS ore (-0.26‰). In contrast, calcine samples exhibited variable δ(202)Hg values ranging from -1.91‰ to +2.10‰. Small MIF signatures in the calcine were consistent with nuclear volume fractionation of Hg isotopes during or after the roasting process. The poplar leaves exhibited negative MDF (-3.18 to -1.22‰) and small positive MIF values (Δ(199)Hg of 0.02 to 0.21‰). Sequential extractions combined with Hg isotope analysis revealed higher δ(202)Hg values for the more soluble Hg pools in calcines compared with residual HgS phases. Our data provide novel insights into possible in situ transformations of Hg phases and suggest that isotopically heavy secondary Hg phases were formed in the calcine, which will influence the isotope composition of Hg leached from the site.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Wiederhold</LastName><ForeName>Jan G</ForeName><Initials>JG</Initials><AffiliationInfo><Affiliation>Soil Chemistry Group, Institute of Biogeochemistry and Pollutant Dynamics, ETH Zurich , Switzerland.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Smith</LastName><ForeName>Robin S</ForeName><Initials>RS</Initials></Author><Author ValidYN="Y"><LastName>Siebner</LastName><ForeName>Hagar</ForeName><Initials>H</Initials></Author><Author ValidYN="Y"><LastName>Jew</LastName><ForeName>Adam D</ForeName><Initials>AD</Initials></Author><Author ValidYN="Y"><LastName>Brown</LastName><ForeName>Gordon E</ForeName><Initials>GE</Initials><Suffix>Jr</Suffix></Author><Author ValidYN="Y"><LastName>Bourdon</LastName><ForeName>Bernard</ForeName><Initials>B</Initials></Author><Author ValidYN="Y"><LastName>Kretzschmar</LastName><ForeName>Ruben</ForeName><Initials>R</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013486">Research Support, U.S. Gov't, Non-P.H.S.</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2013</Year><Month>05</Month><Day>28</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Environ Sci Technol</MedlineTA><NlmUniqueID>0213155</NlmUniqueID><ISSNLinking>0013-936X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D008629">Mercury Isotopes</NameOfSubstance></Chemical><Chemical><RegistryNumber>FXS1BY2PGL</RegistryNumber><NameOfSubstance UI="D008628">Mercury</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D008628" MajorTopicYN="N">Mercury</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="Y">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D008629" MajorTopicYN="N">Mercury Isotopes</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="Y">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D008906" MajorTopicYN="Y">Mining</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014481" MajorTopicYN="N" Type="Geographic">United States</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2013</Year><Month>5</Month><Day>14</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2013</Year><Month>5</Month><Day>15</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2014</Year><Month>3</Month><Day>22</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">23662941</ArticleId><ArticleId IdType="doi">10.1021/es305245z</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Suisse</li></country></list><tree><noCountry><name sortKey="Bourdon, Bernard" sort="Bourdon, Bernard" uniqKey="Bourdon B" first="Bernard" last="Bourdon">Bernard Bourdon</name><name sortKey="Brown, Gordon E" sort="Brown, Gordon E" uniqKey="Brown G" first="Gordon E" last="Brown">Gordon E. Brown</name><name sortKey="Jew, Adam D" sort="Jew, Adam D" uniqKey="Jew A" first="Adam D" last="Jew">Adam D. Jew</name><name sortKey="Kretzschmar, Ruben" sort="Kretzschmar, Ruben" uniqKey="Kretzschmar R" first="Ruben" last="Kretzschmar">Ruben Kretzschmar</name><name sortKey="Siebner, Hagar" sort="Siebner, Hagar" uniqKey="Siebner H" first="Hagar" last="Siebner">Hagar Siebner</name><name sortKey="Smith, Robin S" sort="Smith, Robin S" uniqKey="Smith R" first="Robin S" last="Smith">Robin S. Smith</name></noCountry><country name="Suisse"><noRegion><name sortKey="Wiederhold, Jan G" sort="Wiederhold, Jan G" uniqKey="Wiederhold J" first="Jan G" last="Wiederhold">Jan G. Wiederhold</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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