Links to Exploration step
Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Environmental Aging of Polycyclic Aromatic Hydrocarbons on Soot and its Effect on Source Identification</title><author><name sortKey="Kim, Daekyun" sort="Kim, Daekyun" uniqKey="Kim D" first="Daekyun" last="Kim">Daekyun Kim</name><affiliation><nlm:aff id="A1"> Agricultural and Environmental Chemistry Graduate Group, University of California, One Shields Avenue, Davis, California 95616</nlm:aff></affiliation></author><author><name sortKey="Kumfer, Benjamin M" sort="Kumfer, Benjamin M" uniqKey="Kumfer B" first="Benjamin M." last="Kumfer">Benjamin M. Kumfer</name><affiliation><nlm:aff id="A2"> Department of Mechanical and Aeronautical Engineering, University of California, One Shields Avenue, Davis, California 95616</nlm:aff></affiliation></author><author><name sortKey="Anastasio, Cort" sort="Anastasio, Cort" uniqKey="Anastasio C" first="Cort" last="Anastasio">Cort Anastasio</name><affiliation><nlm:aff id="A1"> Agricultural and Environmental Chemistry Graduate Group, University of California, One Shields Avenue, Davis, California 95616</nlm:aff></affiliation><affiliation><nlm:aff id="A3"> Department of Land, Air, and Water Resources, University of California, One Shields Avenue, Davis, California 95616</nlm:aff></affiliation></author><author><name sortKey="Kennedy, Ian M" sort="Kennedy, Ian M" uniqKey="Kennedy I" first="Ian M." last="Kennedy">Ian M. Kennedy</name><affiliation><nlm:aff id="A2"> Department of Mechanical and Aeronautical Engineering, University of California, One Shields Avenue, Davis, California 95616</nlm:aff></affiliation></author><author><name sortKey="Young, Thomas M" sort="Young, Thomas M" uniqKey="Young T" first="Thomas M." last="Young">Thomas M. Young</name><affiliation><nlm:aff id="A1"> Agricultural and Environmental Chemistry Graduate Group, University of California, One Shields Avenue, Davis, California 95616</nlm:aff></affiliation><affiliation><nlm:aff id="A4"> Department of Civil and Environmental Engineering, University of California, One Shields Avenue, Davis, California 95616</nlm:aff></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">19443013</idno><idno type="pmc">2754578</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2754578</idno><idno type="RBID">PMC:2754578</idno><idno type="doi">10.1016/j.chemosphere.2009.04.031</idno><date when="2009">2009</date><idno type="wicri:Area/Pmc/Corpus">000111</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000111</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Environmental Aging of Polycyclic Aromatic Hydrocarbons on Soot and its Effect on Source Identification</title><author><name sortKey="Kim, Daekyun" sort="Kim, Daekyun" uniqKey="Kim D" first="Daekyun" last="Kim">Daekyun Kim</name><affiliation><nlm:aff id="A1"> Agricultural and Environmental Chemistry Graduate Group, University of California, One Shields Avenue, Davis, California 95616</nlm:aff></affiliation></author><author><name sortKey="Kumfer, Benjamin M" sort="Kumfer, Benjamin M" uniqKey="Kumfer B" first="Benjamin M." last="Kumfer">Benjamin M. Kumfer</name><affiliation><nlm:aff id="A2"> Department of Mechanical and Aeronautical Engineering, University of California, One Shields Avenue, Davis, California 95616</nlm:aff></affiliation></author><author><name sortKey="Anastasio, Cort" sort="Anastasio, Cort" uniqKey="Anastasio C" first="Cort" last="Anastasio">Cort Anastasio</name><affiliation><nlm:aff id="A1"> Agricultural and Environmental Chemistry Graduate Group, University of California, One Shields Avenue, Davis, California 95616</nlm:aff></affiliation><affiliation><nlm:aff id="A3"> Department of Land, Air, and Water Resources, University of California, One Shields Avenue, Davis, California 95616</nlm:aff></affiliation></author><author><name sortKey="Kennedy, Ian M" sort="Kennedy, Ian M" uniqKey="Kennedy I" first="Ian M." last="Kennedy">Ian M. Kennedy</name><affiliation><nlm:aff id="A2"> Department of Mechanical and Aeronautical Engineering, University of California, One Shields Avenue, Davis, California 95616</nlm:aff></affiliation></author><author><name sortKey="Young, Thomas M" sort="Young, Thomas M" uniqKey="Young T" first="Thomas M." last="Young">Thomas M. Young</name><affiliation><nlm:aff id="A1"> Agricultural and Environmental Chemistry Graduate Group, University of California, One Shields Avenue, Davis, California 95616</nlm:aff></affiliation><affiliation><nlm:aff id="A4"> Department of Civil and Environmental Engineering, University of California, One Shields Avenue, Davis, California 95616</nlm:aff></affiliation></author></analytic><series><title level="j">Chemosphere</title><idno type="ISSN">0045-6535</idno><idno type="eISSN">1879-1298</idno><imprint><date when="2009">2009</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p id="P1">Soot associated PAHs were exposed to simulated sunlight to investigate disappearance rates under environmental aging conditions and to examine the robustness of diagnostic ratios for PAH source apportionment. Naphthalene, acenaphthylene, acenaphthene, and fluorene showed an obvious two-phase disappearance in all experiments while phenanthrene and anthracene exhibited this behavior for all but the highest soot loading. The first phase loss is 5-40 times faster than the second phase loss and occurred within 3 h for naphthalene, acenaphthylene, acenaphthene, and fluorene and within 10 h for phenanthrene and anthracene. Two-phase disappearance was not observed for any of the higher molecular weight PAHs with 4-6 rings. Each PAH has a unique loss rate via photodegradation and volatilization and these rates of some PAHs were affected by soot loadings; phenanthrene and anthracene showed similar rates in the first phase and increased loss rates in the second phase as soot loading increased. In the absence of light, the loss of PAHs was related to both temperature and molecular characteristics. Due to differences in disappearance rates of individual PAHs under illumination over extended times, prolonged exposure to sunlight could change the interpretation of some diagnostic ratios used previously for PAH source identification. This result indicates that more consistent and accurate methods that take into consideration the longevity of particulate PAHs are needed for reliable source apportionment.</p></div></front></TEI><pmc article-type="research-article" xml:lang="EN"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<pmc-dir>properties manuscript</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-journal-id">0320657</journal-id><journal-id journal-id-type="pubmed-jr-id">8583</journal-id><journal-id journal-id-type="nlm-ta">Chemosphere</journal-id><journal-title>Chemosphere</journal-title><issn pub-type="ppub">0045-6535</issn><issn pub-type="epub">1879-1298</issn></journal-meta><article-meta><article-id pub-id-type="pmid">19443013</article-id><article-id pub-id-type="pmc">2754578</article-id><article-id pub-id-type="doi">10.1016/j.chemosphere.2009.04.031</article-id><article-id pub-id-type="manuscript">NIHMS113262</article-id><article-categories><subj-group subj-group-type="heading"><subject>Article</subject></subj-group></article-categories><title-group><article-title>Environmental Aging of Polycyclic Aromatic Hydrocarbons on Soot and its Effect on Source Identification</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Kim</surname><given-names>Daekyun</given-names></name><xref rid="A1" ref-type="aff">a</xref><xref rid="FN2" ref-type="author-notes">†</xref></contrib><contrib contrib-type="author"><name><surname>Kumfer</surname><given-names>Benjamin M.</given-names></name><xref rid="A2" ref-type="aff">b</xref></contrib><contrib contrib-type="author"><name><surname>Anastasio</surname><given-names>Cort</given-names></name><xref rid="A1" ref-type="aff">a</xref><xref rid="A3" ref-type="aff">c</xref></contrib><contrib contrib-type="author"><name><surname>Kennedy</surname><given-names>Ian M.</given-names></name><xref rid="A2" ref-type="aff">b</xref></contrib><contrib contrib-type="author"><name><surname>Young</surname><given-names>Thomas M.</given-names></name><xref rid="A1" ref-type="aff">a</xref><xref rid="A4" ref-type="aff">d</xref><xref rid="FN1" ref-type="author-notes">*</xref></contrib></contrib-group><aff id="A1"><label>a</label> Agricultural and Environmental Chemistry Graduate Group, University of California, One Shields Avenue, Davis, California 95616</aff><aff id="A2"><label>b</label> Department of Mechanical and Aeronautical Engineering, University of California, One Shields Avenue, Davis, California 95616</aff><aff id="A3"><label>c</label> Department of Land, Air, and Water Resources, University of California, One Shields Avenue, Davis, California 95616</aff><aff id="A4"><label>d</label> Department of Civil and Environmental Engineering, University of California, One Shields Avenue, Davis, California 95616</aff><author-notes><corresp id="FN1"><label>*</label> Corresponding author. Address: Department of Civil and Environmental Engineering, University of California, One Shields Avenue, Davis, CA 95616, USA. Tel.: +1 530 7549399; fax: +1 530 7527872; <email>tyoung@ucdavis.edu</email></corresp><fn id="FN2" fn-type="present-address"><label>†</label><p>Present address: School of Public and Environmental Affairs, Indiana University, Bloomington, IN 47405</p></fn></author-notes><pub-date pub-type="nihms-submitted"><day>5</day><month>5</month><year>2009</year></pub-date><pub-date pub-type="epub"><day>13</day><month>5</month><year>2009</year></pub-date><pub-date pub-type="ppub"><month>8</month><year>2009</year></pub-date><pub-date pub-type="pmc-release"><day>1</day><month>8</month><year>2010</year></pub-date><volume>76</volume><issue>8</issue><fpage>1075</fpage><lpage>1081</lpage><abstract><p id="P1">Soot associated PAHs were exposed to simulated sunlight to investigate disappearance rates under environmental aging conditions and to examine the robustness of diagnostic ratios for PAH source apportionment. Naphthalene, acenaphthylene, acenaphthene, and fluorene showed an obvious two-phase disappearance in all experiments while phenanthrene and anthracene exhibited this behavior for all but the highest soot loading. The first phase loss is 5-40 times faster than the second phase loss and occurred within 3 h for naphthalene, acenaphthylene, acenaphthene, and fluorene and within 10 h for phenanthrene and anthracene. Two-phase disappearance was not observed for any of the higher molecular weight PAHs with 4-6 rings. Each PAH has a unique loss rate via photodegradation and volatilization and these rates of some PAHs were affected by soot loadings; phenanthrene and anthracene showed similar rates in the first phase and increased loss rates in the second phase as soot loading increased. In the absence of light, the loss of PAHs was related to both temperature and molecular characteristics. Due to differences in disappearance rates of individual PAHs under illumination over extended times, prolonged exposure to sunlight could change the interpretation of some diagnostic ratios used previously for PAH source identification. This result indicates that more consistent and accurate methods that take into consideration the longevity of particulate PAHs are needed for reliable source apportionment.</p></abstract><kwd-group><kwd>PAH</kwd><kwd>soot</kwd><kwd>environmental aging</kwd><kwd>two-phase degradation</kwd><kwd>source apportionment</kwd></kwd-group><contract-num rid="ES1">P42 ES004699-19</contract-num><contract-sponsor id="ES1">National Institute of Environmental Health Sciences : NIEHS</contract-sponsor></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Bois/explor/CheneBelgiqueV1/Data/Pmc/Corpus
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000111 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Pmc/Corpus/biblio.hfd -nk 000111 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Bois
|area= CheneBelgiqueV1
|flux= Pmc
|étape= Corpus
|type= RBID
|clé=
|texte=
}}
| This area was generated with Dilib version V0.6.27. |  |