AMBIENT CONCENTRATIONS OF ELEMENTAL AND ORGANIC CARBON IN URBAN AND SUBURBAN ATMOSPHERES IN ESKİSEHİR: ESTIMATION OF THE SECONDARY ORGANIC CARBON

Year 2017, Volume: 18 Issue: 2, 429 - 438, 30.06.2017

Eftade Gaga

https://doi.org/10.18038/aubtda.299876

Cited By: 1

Abstract

Ambient air particulate matter samples were collected from
urban and suburban sites of Eskişehir in 2012. Samples were collected concurrently from both
sites between 26^th of February and 20^th of December 2012. Mass concentrations of particulate matter (fine particles-PM_2.5, coarse particles-PM_2.5-10and total suspended
particulate matter-TSP) were
determined. TSP samples were analyzed by Thermal Optical Carbon Analyzer to
determine elemental carbon (EC), organic carbon (OC) and total carbon (TC)
concentrations.  It was found that 4.9%
of the TSP is composed of EC, and 13.6 % is OC in urban sampling point. EC and
OC contributions in suburban sampling points were 2.7% and 9.6% respectively. OC/EC
ratio was found to be  almost 1.5 times
higher in suburban sampling site compared to urban sampling site. EC tracer
method was used to estimate the contribution of Secondary Organic Carbon (SOC).
The SOC percent of TSP was estimated as 7.1 % and 5.6 % for the urban and
suburban locations respectively.

Keywords

Particulate Matter, Elemental Carbon, Organic Carbon

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