Quantification of the exhaust emissions from seagoing ships in Suez Canal waterway

This study aimed to quantify the exhaust emissions from seagoing ships and evaluate the relevance of shipping as an air polluter in Suez Canal area. Suez Canal and Port Said authority's databases and engine manufactures are used to collect technical information about seagoing ships passing the Canal. To overcome the lake of data, correlations have been developed for each ship category to predict the power of the auxiliary engines as a function of the power of the main engines.In this study, exhaust pollutants are estimated based on two models developed by the maritime industry. Also, ships emissions are predicted for each ship category at different modes of operation. Then, the predicted emissions are correlated and expressed as a function of the numbers of ships passing the canal and their net tonnage.The results indicated that the average emissions from seagoing ships passing Suez Canal were evaluated to be 8.16 million tons annually with a potential increase in the future. Also, container ships are the main source of air pollution amongst other ship categories and mainly responsible about 48–59% of the air pollution. This study may be used to inform future Egyptian policies that target shipping emissions and crossing dues. Keywords: Suez Canal, Shipping emissions, Air pollution, Emission factor, Emission rate