1 Ocak 2011 Dergi makalesi Açık Erişim

Gaga, Eftade O.; Ari, Akif

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/20967</identifier>
  <creators>
    <creator>
      <creatorName>Gaga, Eftade O.</creatorName>
      <givenName>Eftade O.</givenName>
      <familyName>Gaga</familyName>
      <affiliation>Anadolu Univ, Dept Environm Engn, TR-26470 Eskisehir, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Ari, Akif</creatorName>
      <givenName>Akif</givenName>
      <familyName>Ari</familyName>
      <affiliation>Anadolu Univ, Dept Environm Engn, TR-26470 Eskisehir, Turkey</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Gas-Particle Partitioning Of Polycyclic Aromatic Hydrocarbons (Pahs) In An Urban Traffic Site In Eskisehir, Turkey</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2011</publicationYear>
  <dates>
    <date dateType="Issued">2011-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/20967</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1016/j.atmosres.2010.10.013</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
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  <descriptions>
    <description descriptionType="Abstract">Gas and particle-phase ambient air samples were collected at a traffic site in Eskisehir over a six-month period between January and October 2006. Gas/particle concentrations of 15 PAHs were determined by analyzing integrated glass fiber and polyurethane foam samples. On average, 66% of the total concentrations of PAHs were found in the gas-phase in heating and 69% in the non-heating period samples. Heating period PAH concentrations were found to be 7 to 8 times greater than concentrations in non-heating period samples. Multiple linear regression analysis was carried out to determine the effect of meteorological parameters on measured individual PAH concentrations. Temperature, wind speed and wind direction explained 43% (dibenzo[a,h]anthracene and benzo[a]pyrene) to 78% (phenanthrene) of the variability in atmospheric PAH concentrations. Results of the multiple linear regression analysis indicated that temperature and wind speed were statistically significant factors for the measured concentrations of PAHs. Gas-particle partitioning coefficients, (K-p) and particle-phase fractions (Phi) of PAHs, were correlated with supercooled vapor pressures (P-L(o)). Application of non-linear fitting for Phi versus log P-L(o) plots was found to be more robust than linear logarithmic regressions of log K-p versus log P-L(o) plots. Particle-phase fractions (Phi) for each PAH were also calculated using octanol-air and soot-air partitioning models. Soot model resulted better predictions of Phi for fluorene, phenanthrene, anthracene, fluoranthene and pyrene. Both two models yielded very similar particle-phase fractions having very close results to experimentally obtained Phi values for the rest of PAHs measured. (C) 2010 Elsevier B.V. All rights reserved.</description>
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