Environmental Science and Pollution Research

, Volume 18, Issue 5, pp 764–771

Fine particulate phase PAHs in ambient atmosphere of Chennai metropolitan city, India

  • Rangaswamy Mohanraj
  • Govindaraj Solaraj
  • Selvaraj Dhanakumar
Research Article
  • 345 Downloads

Abstract

Background

Airborne fine particulates (PM 2.5) and its associated polycyclic aromatic hydrocarbons (PAHs) are reportedly hazardous in urban environment due to the presence of multiple emission sources.

Methods

In this study, fine particulates collected from fourth largest metropolitan city of India, Chennai, were extracted and analyzed for 11 PAHs by high-performance liquid chromatography equipped with a fluorescence detector.

Results

PM 2.5 values varied between 27.2 and 190.2 μg/m3, while average concentration of particle-associated PAHs determined was in the range from 325.7 to 790.8 ng/m3, which signaled an alarming pollution level in Chennai.

Conclusions

Factor analysis suggested vehicular emissions inclusive of petrol- and diesel-driven engines as probable sources.

Keywords

PM 2.5 Polyaromatic hydrocarbons Vehicular emissions Urban area 

Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Rangaswamy Mohanraj
    • 1
  • Govindaraj Solaraj
    • 1
  • Selvaraj Dhanakumar
    • 1
  1. 1.Department of Environmental ManagementBharathidasan UniversityTamilIndia

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