The paper estimates the exhaust emissions of marine traffic in the Port of Rijeka based on the ship’s data obtained from the pilot company. The Port of Rijeka is the largest port in Croatia that includes several berthing locations with different terminals. The estimation is made for each of them respecting carbon dioxide (CO2), nitrogen oxides (NOx), sulphur oxides (SOx) and particulate matter (PM) as well as for the amount of total emissions for the area. The aim is to prepare basic records for estimation and further monitoring with respect to changes in the ongoing environmental regulation and restrictions. This paper will contribute to the overall national strategy of preparing shipping emission inventories for the Republic of Croatia. The estimation method is based on the bottom–up approach widely used in such research that starts with ship characteristics and activities when approaching the port.

Understanding the complete human influence on maritime space has the central position in the planning process. Maritime spatial planning logically connects on integral planning of coastal area. Applying integral management on coastal and maritime area, together with the establishment of the process of maritime spatial planning makes the coupling regarding managing of the resources; all that is directed to the existence of sustainable development. Maritime spatial planning (MSP) is the process of analyzing and separating spatial and temporal divisions of human activities in the maritime area. Croatia, even though it is extremely maritime country, has not yet established complete legal framework for setting up MSP. This paper analyzes European legal framework for implementation of MSP process in Croatia. It provides the overview of the accomplishments achieved until today, as well as achievements of the Republic of Croatia during establishing legal and institutional framework for establishment and implementation of maritime spatial planning. The overview of application of MSP in European practice is specially presented. The purpose of the paper is to analyze the growing needs for maritime space and the manners of amortization of its unorganized use. The goal of this paper is to point on the importance of adopting legal regulations regarding MSP and their practical application. Efficient management and protection of natural resources is specially emphasized, all for the purpose of reducing conflicts in maritime areas.

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The paper estimates the exhaust emissions of marine traffic in the port of Šibenik. The results of the analysis were obtained by including the following gaseous pollutants: nitrogen oxide (NOX), sulphur oxide (SOX), particulate matter (PM), volatile organic compounds (VOCs) and carbon dioxide (CO2) as greenhouse gas. In order to gain results and estimate the emission of harmful gases in the port of Šibenik, the passenger and the cargo throughput were taken into account. The activities of the ship during which the exhaust gases are emitted into the atmosphere are slow cruising in the reduced speed zone, manoeuvring and hotelling. The “bottom-up” method used in the emission estimation takes into account the ship’s engine power, engine load factor, fuel type, the emission factor, time of cruising and time hotelling in the port of Šibenik. The results of the analysis have shown that approximately 70 % of total emissions come from passenger ships (cruise ships) and 30 % from cargo ships.