MEHMET AKSU, ASLI BAŞARAN, Özdemir EGEMEN

Effects of Baku-Tbilisi-Ceyhan crude oil pipeline on the water quality in Yumurtalık Coast of the Iskenderun Bay

Bakü-Tiflis-Ceyhan Petrol Boru Hattı (BTCOP) Hazar Denizi petrolünü Türkiye’nin Ceyhan Limanına, oradan da Avrupa pazarına ulaştırmak için inşa edilmiştir. Projenin amacı petrolün güvenli ve ekonomik olarak ulaştırılmasıdır. Bu çalışmanın amacı ise, BTC boru hattının ulaştığı Yumurtalık kıyılarında yer alan Ceyhan Deniz Terminalinin su kalitesi üzerindeki etkilerinin izlenmesidir. Bu amaçla, Temmuz 2007, Ağustos 2009 ve Temmuz 2011’de ikisi referans istasyonu olmak üzere dört istasyondan örneklemeler yapılmıştır. Tuzluluk, sıcaklık ve yoğunluğun derinliğe bağlı değişimleri CTD cihazı ile ölçülmüştür. Ayrıca su kolonunda pH, berraklık, çözünmüş oksijen (DO), besleyici elementler (nitrit+nitrat-azotu, amonyum-azotu, fosfat fosforu ve silis) ve klorofil a değerleri ölçülmüştür. Sonuç olarak, çalışma alanında ötrofikasyon riski görülmemiştir. Fosfat limitleyici besleyici elementtir. Söz konusu alanda BTCOP faaliyetlerinin su kalitesi üzerinde önemli bir etkisi yoktur. Bununla birlikte, su kalitesinde meydana gelebilecek bozulmanın fark edilmesi ve gerekli önlemlerin alınabilmesi için sürekli izlemenin yararı büyüktür.

Bakü-Tiflis-Ceyhan petrol boru hattının İskenderun Körfezi, Yumurtalık kıyılarında su kalitesi üzerindeki etkileri

The Baku-Tbilisi-Ceyhan Oil Pipeline (BTCOP) was constructed to transport oil from the Caspian Sea to the Ceyhan Port of Turkey and from there to European markets. The aim of the project is the establishment of a safe and economically viable transport system of oil. The purpose of this study is monitoring of the effects of Ceyhan Marine Terminal of BTCOP on water quality characteristics in the Yumurtalık Coast. With this aim, samplings were accomplished in July 2007, August 2009 and July 2011 at four stations, two of them served as reference. Salinity, temperature and density variations with depth were measured with CTD device. In addition, pH, turbidity, dissolved oxygen (DO), Nutrients (nitrite+nitrate-nitrogen, ammonium-nitrogen, phosphate-phosphorus and silicate) and chlorophyll-a were measured along the water column. In conclusion, there is no eutrophication risk at the study area in light of our findings. Phosphate is the limiting nutrient. There was no evident impact of BTCOP activities on water quality at the area concerned. Nevertheless, continuous monitoring is essential to detect any deterioration on the water quality and to take necessary measures.

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