Analysis of Ballast Water Discharged in Port—A Case Study of the Port of Plo?e (Croatia)

Ballast water is recognized as a major vector for the transfer of Harmful Aquatic Organisms and Pathogens (HAOP) source sea pollution that negatively affects environment human health. Therefore, International Maritime Organization (IMO) adopted Convention Control Management Ship’s Water Sediments (BWM Convention) in 2004. The BWM introduced two standards, Exchange Standard (Regulation D-1) Performance D-2). Ships are required to install Treatment (BWT) equipment order comply with Regulation D-2. However, deadline installation BWT prolonged until September 2024, many ships still complying only D-1. In addition, there specific areas where D-1 cannot be complied with, hence, HAOP could easily transferred between ports. Consequently, it essential develop system protect marine environment, health economy coastal from introduction HAOP. This paper analyses ballast discharged Port Plo?e (Croatia) according ship type, age flag they flying. It was found general cargo bulk carriers most (87% total quantity) Plo?e. Moreover, analysed origin, 70% originates Adriatic Sea. Based on analysis research results literature review, risk assessment (BWRA) method adopted, however, certain modifications. modified by an additional factor (the deballasting ship’s age), different scoring type adding Paris MoU Grey Black lists high-risk ships. As result, BWRA presented used early warning facilitate implementation adequate measures prevent water.