Air quality impact assessment for the Eurasia Tunnel in Istanbul, Turkey

  • Turgut T. OnayEmail author
  • Nadim K. Copty
  • Hasan Burak Gökçe
  • Derya Aydın-Sarıkurt
  • Melih Mumcu
  • Ergin Arıoğlu


The Eurasia Tunnel, a 5.4-km tunnel connecting the Asian and European sides of Istanbul, Turkey, was opened for operation in December 2016. This paper describes the air quality modeling that was conducted during the design phase of the structure, to evaluate the impact of the tunnel traffic on ambient air quality in the vicinity of the tunnel. The ventilation of the tunnel consists of longitudinal forced ventilation with vertical extraction through two stacks located near the Asian and European portals of the tunnel. The analysis was conducted using the AERMOD computer program for three pollutants CO, NO2, and PM10. Model results show that pollutants will rapidly disperse once released from the stack and will not affect air quality in the vicinity of the tunnel. The most critical parameters which controlled the ventilation system design were found to be NO2 and PM10. Maximum concentrations are not expected to violate the pertinent Turkish and EU air quality standards. Overall, this analysis shows that the ventilation system is efficient for the dispersion of the pollutants.


Air quality modeling Eurasia Tunnel AERMOD CO NO2 PM10 Tunnel ventilation 



The authors wish to express their thanks to the chairman of Yapı Merkezi Holding, Dr. Eng. Ersin Arıoğlu, the chairman of Eurasia Tunnel Operation, Construction and Investment Inc. Dipl. Eng. Başar Arıoğlu, and Yapı Merkezi board members for their support and academic interest. Recognition is also given to Eurasia Tunnel Operation, Construction and Investment Inc. members Dipl. Eng. Murat Gücüyener, Dipl. Eng. Badel Gün, Dipl. Eng. Aşkın Kaan Kaptan, and Dipl. Eng. Ceren Alaca Bayındır who were actively involved in the technical work and to Eng. Naim İşli, project management, and the crews on site. The opinions, findings, and conclusions expressed in this study are those of the authors and do not necessarily reflect the views of all organizations involved in the project.


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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Turgut T. Onay
    • 1
    Email author
  • Nadim K. Copty
    • 1
  • Hasan Burak Gökçe
    • 2
  • Derya Aydın-Sarıkurt
    • 1
  • Melih Mumcu
    • 3
  • Ergin Arıoğlu
    • 2
  1. 1.Institute of Environmental SciencesBogazici UniversityIstanbulTurkey
  2. 2.Yapı Merkezi Construction and Industry Inc.IstanbulTurkey
  3. 3.Eurasia Tunnel Operation Construction and Investment Co. (ATAŞ)IstanbulTurkey

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