International Journal of Environmental Sciences

Volume 4 Issue 6 2014- May 2014    Pages: 1141-1149  <<Previous    Next>>

Source Apportionment Study of Polycyclic Aromatic Hydrocarbons (PAHs) in New Delhi, India

Author Information:

Alankar Sharma1, Tyagi S.K2, Dolly Kulshrestha3, Jamson Masi4

1-Student, B.Tech. Department of Environmental Science and Engineering, Indian School of Mines, Dhanbad, Jharkhand
2-Senior Scientist, Central Pollution Control Board, New Delhi
3-Junior Scientific Assistant, Central Pollution Control Board, New Delhi
4-Assistant Professor, Wilson College, Mumbai, Maharashtra


The ambient air samples were collected at the six NAAQM sampling sites (ITO, Janakpuri, Nizamuddin, PitamPura, ShahzadaBagh, Siri Fort, Shahdra) during the study period of first three months (January, February, March) of the year 2012. The samples were analysed for their toxicity using the GC (Gas Chromatography) method in the air laboratory and the Benzo(a)Pyrene [BaP] and the Total PAH [TPAH] level in the ambient air were calculated from the chromatographs formed. The Principal Component Analysis (PCA) was conducted using the Principal Component Extraction method. The data was compiled and is presented in the form of a table in the results section. The extracts were analysed for 16 target polycyclic aromatic hydrocarbons (PAHs). The average concentration of Benzo(a)pyrene (BaP) ranged from 0.27 to 17.86 whereas, total PAH (TPAH) ranged from 4.61 to 52.96 ng/m3. Hence, an air toxic profile can be estimated by analysing the concentrations of the varities of PAHs found during the study period.

Keywords: PAHs- Polycyclic Aromatic Hydrocarbons, TPAHs- Total Polycyclic Aromatic Hydrocarbons, PCA – Principal Component Analysis, Factor Analysis, BaP – Benzo(a)Pyrene.


© 2014 Copyright by the authors, licensee Integrated Publishing Association.This is an open access article distributed under the Creative Commons Attribution License (3.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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