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Chemical Composition and Acidity of Rain at the Gulf of Iskenderun, North-East Mediterranean

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Water, Air, & Soil Pollution: Focus

Abstract

The purpose of the present work was to investigate the chemistry of rain in the Gulf of Iskenderun, North East Mediterranean, Turkey. The Gulf region has a large number of industries. Main industries existing in the region are iron and steel works, fertilizer plants, a cement plant, and several medium and mini size steel mills in addition to the international pipe line terminals. This study aims to apportion the local sources contributing to the overall pollution of the region. To this end a precipitation sampling program was started in January 2000, and over 48 precipitation samples were collected from each of 5 stations located at Iskenderun city center, Iskenderun industrial zone, Payas city center, the campus of Iskenderun Technical College and the campus of Mustafa Kemal University. Samples were analysed for pH, NO3 +, Cl-. Ca, Al, Ba, Na, Cd, Co, Cr, Cu, Pb, Li, Mg, Mn, Ni, Zn, Fe, K. Concentrations of metal ions were determined by ICP-AES. NO3 - ions and pH were determined by using NO3 - selective electrode and pH meter, respectively.pH values of the collected samples at the industrial zone and at Payas city center, ranged between 5.02 and 7.38, respectively. NO3 - and metal ions concentrations were highly variable. Concentrations of Ca and Fe ions were higher in the industrial zone and Payas city center. In the other three stations, concentrations of metal ions and NO3 - ion were lower than that of industrial zone and the values of pH ranged between 6 and 7.4. The average pH values at Iskenderun Gulf showed that the precipitation was not acidic, because of the high concentration of Ca. The highest concentrations of Na and Cl ions were recorded in the University campus because the campus is located by the Mediterranean Sea.

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Authors and Affiliations

  1. Iskenderun Technical College, Mustafa Kemal University, Iskenderun, Turkey

    Sermin Örnektekin & Sinem Cakmakli

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  1. Sermin Örnektekin
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  2. Sinem Cakmakli
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Örnektekin, S., Cakmakli, S. Chemical Composition and Acidity of Rain at the Gulf of Iskenderun, North-East Mediterranean. Water, Air, & Soil Pollution: Focus 3, 151–166 (2003). https://doi.org/10.1023/A:1026009313334

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