Source apportionment of urban aerosols using receptor modelling approach: an application to Ankara

Yatın, Mustafa


Source apportionment of trace elements in Ankara
Çelik, İlke; Sanin, Faika Dilek; Department of Environmental Engineering (2014)
In this study, chemical composition of aerosol samples in Ankara is identified through receptor modeling. Within the scope of the study, 24-hr aerosol samples are collected by ‘Stack Filter Unit’ with using Nuclepore filter for 9 months at Middle East Technical University campus as a suburban sampling location. Collected filters are analyzed for fifty-seven major and minor trace elements, between z=3 Li and z = 92 (U) and black carbon. Measured concentrations of fine and coarse fractions are compared with c...
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...
Scale-up synthesis of zinc borate from the reaction of zinc oxide and boric acid in aqueous medium
Kilinc, Mert; Cakal, Gaye O.; Yesil, Sertan; Bayram, Göknur; EROĞLU, İNCİ; ÖZKAR, SAİM (2010-11-01)
Synthesis of zinc borate was conducted in a laboratory and a pilot scale batch reactor to see the influence of process variables on the reaction parameters and the final product, 2ZnO center dot 3B(2)O(3)center dot 3.5H(2)O. Effects of stirring speed, presence of baffles, amount of seed, particle size and purity of zinc oxide, and mole ratio of H3BO3:ZnO on the zinc borate formation reaction were examined at a constant temperature of 85 degrees C in a laboratory (4 L) and a pilot scale (85 L) reactor. Produ...
Improved synthesis of fine zinc borate particles using seed crystals
Guerhan, Deniz; Cakal, Gaye Oe.; Eroğlu, İnci; ÖZKAR, SAİM (2009-03-01)
Zinc borate is a flame retardant additive used in polymers, wood applications and textile products. There are different types of zinc borate having different chemical compositions and structures. in this study, the production of zinc borate having the molecular formula of 2ZnO center dot 3B(2)O(3) center dot 3.5H(2)O Was reexamined by studying the effects of reaction parameters on the properties of product as well as the reaction kinetics. Production of zinc borate from the reaction of boric acid and zinc o...
Source apportionment of volatile organic compounds in Ankara atmosphere
Uzunpınar, Elif Sena; İmamoğlu, İpek; Tuncel, Süleyman Gürdal; Department of Environmental Engineering (2015)
In this study, ambient concentrations of volatile organic compounds (VOCs) of Photochemical Assessment Monitoring Stations (PAMS) in Ankara atmosphere were measured to determine the current level and sources of these compounds. Sampling was performed at METU Department of Environmental Engineering from January, 2014 to December, 2014 with stainless-steel canisters. Mean VOC concentrations ranged between 0.04 μg m-3 (cis-2-pentene) and 10.30 μg m-3 (toluene) with average benzene concentration of 1.49 μg m-3....
Citation Formats
M. Yatın, “Source apportionment of urban aerosols using receptor modelling approach: an application to Ankara,” Ph.D. - Doctoral Program, Middle East Technical University, 1994.