Modelling of Ship Originated Exhaust Gas Emissions in the Strait of Istanbul (Bosphorus)

In addition to being one of the largest metropolises in the world, Istanbul is also one of the busiest routes of international maritime transport through the Strait of Istanbul (SoI). Currently, the average number of ships which passes through SoI is approximately 45,000. This number does not increase much due to the natural structure of SoI. So, larger ships with larger tonnages pass through SoI. In addition to the existing transit ship traffic in SoI, ship-based exhaust pollution caused by local maritime traffic adversely affects human health, comfort and the environment. In this study, the exhaust emissions generated by the ships of the local companies transporting in SoI were investigated. In addition, exhaust emissions from ships, one of the most important air pollutant emission sources such as motor vehicles, industrial processes and heating of residences in Istanbul, were calculated and presented. Ship exhaust gas emissions in SoI were calculated based on actual ship movements and ship machinery information using the bottom up method.