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Aysen Müezzinoğlu Tolga Elbir Abdurrahman Bayram 《Environmental Engineering and Policy》1998,1(2):109-116
In this study, an inventory of air pollutant emission estimates from major air polluting sources in Turkey for period between 1985 and 2005 with 5-year intervals were estimated. Inventory covers anthropogenic sources of five major air pollutants of particulate matter, sulfur dioxide, carbon monoxide, nitrogen oxides and non-methane volatile organic compounds. Their break-down with respect to main activity sectors were shown and their distribution by the largest industrial source categories were worked out as annual estimates. This inventory and its analysis point to serious environmental implications of air pollutants and a need to develop a policy plan for reducing these emissions. 相似文献
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Monitoring urban growth and detecting land-cover changes on the Istanbul metropolitan area 总被引:1,自引:0,他引:1
Istanbul is the most populated city of Turkey with a population of around 10.58 M (2000) living on around 5,750 km2. In 1980, the population was only 4.7 M and then it has been more than doubled in only two decades. The population has been
increasing as a result of mass immigration. An urbanization process continues and it causes serious increases in urban areas
while decreasing the amount of green areas. This rapid, uncontrolled, and illegal urbanization accompanied by insufficient
infrastructure has caused degradation of forest and barren lands in the metropolitan area, especially through the last two
decades. The watershed basins inside the metropolitan area and the transportation network have accelerated the land-cover
changes, which have negative impacts on water quality of the basins. Monitoring urban growth and land cover change will enable
better management of this complex urban area by the Greater Istanbul Metropolitan Municipality (GIMM). A temporal assessment
of land-cover changes of Istanbul has been documented in this study. The study mainly focuses on the acquisition and analysis
of Landsat TM and Landsat GeoCover LC satellite images reflecting the significant land-cover changes between the years of
1990 and 2005. Raster data were converted to vector data and used in Geographic Information Systems (GIS). A database was
created for Istanbul metropolitan area to plan, manage, and utilize statistical attribute data covering population, water,
forest, industry, and topographic position. Consequently an overlay analysis was carried out and land use/cover changes through
years have been detected for the case study area. The capability of Landsat images in determining the alterations in the macro
form of the city are also discussed. 相似文献
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Halil Yavuz Gokalp O. Guler Abdurrahman Aktumsek Yavuz S. Cakmak Haluk Ozparlak 《Environmental monitoring and assessment》2010,168(1-4):277-283
In this study, 24 organochlorine pesticide residues in 109 different honey samples collected from stores and open markets in Konya, Turkey were analyzed by gas chromatography-electron capture detection. Aldrin, cis-chlordane, trans-chlordane, oxy-chlordane, 2,4′ -DDE, and 4,4′ -DDE were found in all honey samples. The mean value was 0.0540 μg g???1 for oxy-chlordane. In the 55 samples of 109, levels of organochlorine pesticide residues of oxy-chlordane were determined as higher than those of Turkish Alimentarius Codex maximum residual limits (MRLs). Other organochlorine pesticide residues also exceeded MRLs except for cis-heptachlor epoxide and α-hexachlorocyclohexane. Since all of the honey samples are found contaminated and most of these samples exceeded MRLs, a control of organochlorine pesticide residues in honey is necessary for consumer health. 相似文献
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Salami Babatunde Abiodun Oyehan Tajudeen Adeyinka Gambo Yahya Badmus Suaibu O. Tanimu Gazali Adamu Sagir Lateef Saheed A. Saleh Tawfik A. 《Environmental science and pollution research international》2022,29(28):42560-42600
Environmental Science and Pollution Research - Water and wastewater treatment applications stand to benefit immensely from the design and development of new materials based on silica nanoparticles... 相似文献
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Lermi Abdurrahman Sunkari Emmanuel Daanoba 《Environmental science and pollution research international》2023,30(10):25080-25092
Environmental Science and Pollution Research - Globally, potentially toxic elements (PTEs) are regarded as an important group of pollutants for the wider environment because of their intrinsic... 相似文献
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Muezzinoglu Aysen Elbir Tolga Bayram Abdurrahman 《Water, Air, & Soil Pollution: Focus》2003,3(5-6):307-316
Future (24 h later) daily ground level SO2 concentration in Istanbul was modeled and predicted using a new and powerful technique, Artificial Neural Networks (ANN) in the case of meteorological parameters as input variables. Results show that the trend of SO2 from higher values in winter to lower values in spring and summer, and again to higher values towards winter can be correctly represented by the neural networks. The model better predicted the lower SO2 values in spring and summer seasons when compared to higher values in winter season because of the pattern distribution in training data sets. Beside the amount of the database, the more the variation of the values of the parameters in their own ranges, the more the network learns the database. As a result of this study, considerably successful results were obtained when considering the complex and nonlineer structure of the atmosphere, which is the source of the database. 相似文献
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Nahit Aktaş Nurettin Şahiner Ömer Kantoğlu Bekir Salih Abdurrahman Tanyolaç 《Journal of Polymers and the Environment》2003,11(3):123-128
Enzymatic polymerization of catechol was conducted batch-wise using laccase enzyme produced by the culture Trametes versicolor (ATCC 200801). The polymerization reaction was carried out in 1:1 (v/v) aqueous-acetone solution, buffered at pH 5.0 with sodium acetate (50 mM) in a sealed, temperature-controlled reactor at 25°C. The molecular weight of the produced polymer was determined with GPC. FT-IR, DSC, and TGA were employed to investigate the structure and thermal behavior of synthesized poly(catechol). It was found that catechol units were linked together with ether bonds and thermal stability of the catechol increased in the poly(catechol) polymeric structure effectively. The number average molecular weight of poly(catechol) was found as 813 ± 3 Da with a very narrow polydispersity value of 1.17 showing selective polymerization of catechol by the enzyme. 相似文献
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Melik Kara Yetkin Dumanoğlu Hasan Altıok Tolga Elbir Mustafa Odabası Abdurrahman Bayram 《Environmental monitoring and assessment》2014,186(10):6017-6038
Topsoil samples (n?=?40) were collected from a heavily industrialized region in Turkey. The region includes several scrap processing iron–steel plants with electric arc furnaces (EAFs), a petroleum refinery, a petrochemical complex, steel rolling mills, a natural gas-fired power plant, ship-breaking yards and very dense transportation activities. The region has undergone a rapid transition from an agricultural region to a heavily industrialized region in the last three decades. Collected soil samples were analyzed for 48 trace elements using inductively coupled plasma-mass spectrometry (ICP-MS). The elemental distribution pattern in the region indicated that Nemrut area with dense iron–steel production activities was a hotspot for elemental pollution. In addition to crustal elements, concentrations of anthropogenic trace elements (i.e., Fe, Zn, Pb, Mn, Cu, Cd, Cr and Mo) were very high in the area influencing many parts of the region. Elemental compositions of fugitive sources polluting the soil (i.e., paved and unpaved roads, slag piles, EAFs filter dust piles and coal piles) were also determined. The methods (enrichment factors [EFs] and the index of geoaccumulation [I geo]) used for determination of pollution status of soil showed that Cr, Ag, Zn, As and Pb were the strongly contaminating elements for the region. Principal component analysis (PCA) clearly indicated that anthropogenic sources (steel production, refinery and petrochemical processes and traffic) were important sources in this region. 相似文献