Environmental Monitoring and Assessment

, Volume 136, Issue 1, pp 183–196

Receptor modeling for source apportionment of polycyclic aromatic hydrocarbons in urban atmosphere

  • Kunwar P. Singh
  • Amrita Malik
  • Ranjan Kumar
  • Puneet Saxena
  • Sarita Sinha
Article

DOI: 10.1007/s10661-007-9674-6

Cite this article as:
Singh, K.P., Malik, A., Kumar, R. et al. Environ Monit Assess (2008) 136: 183. doi:10.1007/s10661-007-9674-6

Abstract

This study reports source apportionment of polycyclic aromatic hydrocarbons (PAHs) in particulate depositions on vegetation foliages near highway in the urban environment of Lucknow city (India) using the principal components analysis/absolute principal components scores (PCA/APCS) receptor modeling approach. The multivariate method enables identification of major PAHs sources along with their quantitative contributions with respect to individual PAH. The PCA identified three major sources of PAHs viz. combustion, vehicular emissions, and diesel based activities. The PCA/APCS receptor modeling approach revealed that the combustion sources (natural gas, wood, coal/coke, biomass) contributed 19–97% of various PAHs, vehicular emissions 0–70%, diesel based sources 0–81% and other miscellaneous sources 0–20% of different PAHs. The contributions of major pyrolytic and petrogenic sources to the total PAHs were 56 and 42%, respectively. Further, the combustion related sources contribute major fraction of the carcinogenic PAHs in the study area. High correlation coefficient (R2 > 0.75 for most PAHs) between the measured and predicted concentrations of PAHs suggests for the applicability of the PCA/APCS receptor modeling approach for estimation of source contribution to the PAHs in particulates.

Keywords

Source apportionment Polycyclic aromatic hydrocarbons Particulates Vegetation foliage PCA/APCS Multiple linear regression Receptor modeling 

Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  • Kunwar P. Singh
    • 1
  • Amrita Malik
    • 1
  • Ranjan Kumar
    • 1
  • Puneet Saxena
    • 2
  • Sarita Sinha
    • 3
  1. 1.Environmental Chemistry DivisionIndustrial Toxicology Research CentreLucknowIndia
  2. 2.AAI – DUAllahabadIndia
  3. 3.National Botanical Research InstituteLucknowIndia

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