DBPapers

POLYCYCLIC AROMATIC HYDROCARBONS IN AMBIENT AIR PARTICLES IN THE CITY OF KONYA/TURKEY

AUTHOR/S: M. E. AYDIN, G. KARA
Sunday 1 August 2010 by Libadmin2010

10th International Multidisciplinary Scientific GeoConference - SGEM2010, www.sgem.org, SGEM2010 Conference Proceedings/ ISBN 10: 954-91818-1-2, June 20-26, 2010, Vol. 2, 261-268 pp

ABSTRACT

Ambient particulate matter contains numerous organic species, including several
polycyclic aromatic hydrocarbons (PAHs) that are known or suspected carcinogens.
Atmospheric particles were collected using low-volume sampler on glass fiber filters
among August 2007-June 2008. The study area is under the influence of heavy traffic.
Filter samples were extracted with petroleum ether /n-hexane by ultrasonic agitation,
concentrated, and measured at trace levels using gas chromatography–mass
spectrometry. The method was evaluated for sensitivity, recovery, precision. Total PAH
concentrations in the atmospheric particles were found to be 0.0001-2.898 μg m-3.
Seasonal variations of 26 polycyclic aromatic hydrocarbons (PAHs) in the TSP (total
suspended particles) of Konya city were determined. In[123]Py/B[gih]P,
B[a]Py/B[gih]P, B[e]Py/(B[a]Py+B[e]P), and Flua/(Flua+Pyre) ratios were calculated;
the results suggest a typical traffic exhaust source in central Konya during warm period
. Perylene, coronene and phenanthrene were found to be the most abundant PAHs in
airborne particles. Correlation studies between PAHs concentrations and meteorological
parameters were revealed that temperature has greater effects than other meteorological
parameters such as wind speed, relative humidity and atmospheric pressure on PAHs.
Total PAHs had positive correlations with humidity and atmospheric pressure (R=0.469
and 0.701 respectively) while negative correlations were observed with wind power and
air temperature (R=0.378 and 0.755 respectively).

Keywords: PAHs; Particulate matter; Seasonal trend; Konya, Turkey.