Determination of the personal, indoor and outdoor exposure levels of inorganic gaseous pollutants in different microenvironments in an industrial city

Tuncel, Süleyman Gürdal
We measured SO2, NO2 and O-3 concentrations during the summer and winter in Kocaeli, Turkey. The sampling was carried out indoors and outdoors at homes, schools and offices. Personal samplers were also used to determine personal exposures to these pollutants. High NO2 and SO2 concentrations were observed in outdoor samples collected close to locations characterized by heavy urban traffic. Concentrations of O-3, on the other hand, were higher in rural areas around the city due to ozone distillation. For both sampling periods, the concentrations of outdoor SO2 and O-3 were higher than for indoor and personal samples; however, the NO2 concentrations were higher in indoor and personal samples, indicating that outdoor sources significantly contribute to indoor SO2 and O-3 levels and that indoor NO2 concentrations are primarily modulated by sources within buildings. Seasonal variations in pollutant concentrations showed statistically significant differences. Indoor and outdoor concentrations of NO2 and SO2 measured in the winter were higher than the levels measured in the summer; O-3 concentrations, on the other hand, exhibited the opposite trend. Active-to-passive concentration ratios for NO2, SO2 and O-3 were 0.99, 1.08 and 1.16, respectively; the corresponding outdoor ratios were 0.95, 0.99 and 1.00.


Investigation of Turkey's carbon dioxide problem by numerical modeling
Can, Ali; Tokdemir, Turgut; Department of Engineering Sciences (2006)
CO2 emission is very important, because it is responsible for about 60% of the "Greenhouse Effect". The major objectives of this study were to prepare a CO2 emission inventory of Turkey based on districts and provinces by using the fuel consumption data with respect to its sources, to find the CO2 uptake rate of forests in Turkey based on provinces and districts, and to estimate the ground level concentration of CO2 across Turkey using U.S. EPA's ISCLT3 model for the preparation of ground level concentratio...
Calculation of the compressibility and heat capacity of ice I in the pre-melting region
Yurtseven, Hasan Hamit (Informa UK Limited, 2009-01-01)
The isothermal compressibility and the heat capacity are calculated here using the experimental data for the heat expansion of ice I in the pre-melting region. By analysing the data at various pressures, compressibility and the heat capacity are predicted as functions of temperature and pressure near the melting point (p(m) 202.4 MPa, T-m 252.3 K) in ice I. Our predicted compressibility and heat capacity exhibit anomalous behaviour as the heat expansion in the pre-melting region of ice I.
TOKATLI, K; OZILGEN, M (Wiley, 1993-01-01)
Permeation of CO2 and O2 through a low density polyethylene film was studied with CO2-N2 MiXtures in the temperature range 263-283 K, and with CO2-O2-N2 mixtures in the range 257-313 K. The temperature dependence of the permeabilities of these gases agreed with the Arrhenius expression. The activation energy for carbon dioxide diffusion was between 3.53 x 10(4) and 3.74 x 10(4) J/mol; the activation energy for oxygen diffusion was 3.13 x 10(4) J/mol. The pre-exponential constant for oxygen was higher than t...
Assessment of energetic heterogeneity of coals for gas adsorption and its effect on mixture predictions for coalbed methane studies
Karacan, CO; Okandan, E (2000-12-01)
This study explains the single-component and binary mixture adsorption studies on two different coals from the Zonguldak Basin (Northwestern Turkey). Assessment of energetic heterogeneity of coal surface and its effect on the equilibrium binary gas adsorption are discussed. Single component adsorption tests were performed using methane and carbon dioxide at 30 degreesC. Binary mixtures prepared with 10, 15 and 20% carbon dioxide were also tested at the same temperature. Various single-component adsorption i...
Determination of source apportionment of volatile organic compounds in Ankara
Sert, Ezgi; Tuncel, Süleyman Gürdal; Aslan Kılavuz, Seda; Department of Environmental Engineering (2017)
In this study, ambient concentrations of fifty-one volatile organic compounds (VOCs) were measured to determine their current level, emission sources and contributions in both urban and suburban atmosphere of Ankara. Two sampling stations were established in Ankara, one in Ankara University (AU), Faculty of Agriculture, other in Middle East Technical University (METU). AU stations is for representing the urban atmosphere while METU represents suburban atmosphere. In these stations with canister sampling, be...
Citation Formats
Z. BOZKURT et al., “Determination of the personal, indoor and outdoor exposure levels of inorganic gaseous pollutants in different microenvironments in an industrial city,” ENVIRONMENTAL MONITORING AND ASSESSMENT, pp. 0–0, 2015, Accessed: 00, 2020. [Online]. Available: