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1
Content available Presence, concentrations and risk assessment of dioxins in bottom sediments of Port of Gdynia
Dereszewska Alina, Krasowska Katarzyna, Popek Marzenna
Safety and Reliability of Systems and Processes
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2023
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Summer Safety and Reliability Seminar 2023
59--68
EN
The risk associated with the exposure of humans and the environment to the impact of toxic compounds such as dioxins is associated with a number of factors such as: the level of contamination, environmental conditions and the dynamics of the food chain. The aim of the study is to provide a primary understanding of the risk of dioxins pollution in bottom sediments of the Port of Gdynia. The research was conducted to obtain data on the presence, concentration and risk assessment of PCDD/Fs in the bottom sediments of the Port of Gdynia. Sediments from five port basins were analyzed by GC-MS/MS and all PCDD/Fs congeners, capable of accumulating in fat cells of organisms, were detected in them. PCDD congeners dominated in the sediments. The highest concentration (902 ng/kg d.w.) was obtained for OCDD, dioxin with the lowest toxicity factor. The concentration of all 17 dioxin congeners (WHO-TEQ) ranged from 0.9 to 9.5 ngTEQ/kg d.w. Thus, bottom sediments from examined zones of port basins do not have a negative impact on the environment.
2
Content available Preliminary approach to ecological risk assessment of microplastics in selected coastal regions of Baltic Sea
Krasowska Katarzyna, Dereszewska Alina, Popek Marzenna
Safety and Reliability of Systems and Processes
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2022
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Summer Safety and Reliability Seminar 2022
133--142
EN
The aim of the study is to provide a primary understanding of the risk of microplastics (MPs) pollution in selected coastal regions of the Baltic Sea waters. This chapter presents preliminary data on the presence of MPs in superficial layers of seawater and sediments of the Puck Bay and Gulf of Gdansk. The environmental risk assessment has been performed for microplastics of the order of size from 0.3 to 5 mm. The detected fragments of microplastics and synthetic textile fibres are present in amounts that do not pose a significant threat to the marine ecosystem. However, microplastics contamination is projected to continue to increase in the region of the Baltic Sea, so it is necessary to monitor and take precautionary actions to minimise concentrations of microplastics in these environments.
3
Content available Risk of heavy metals and their compounds pollution in Port Gdynia waters
Popek Marzenna, Dereszewska Alina, Dembska Grażyna
Safety and Reliability of Systems and Processes
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2021
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Summer Safety and Reliability Seminar 2021
305--315
EN
The Baltic Sea is one of the world’s largest brackish water areas and an ecologically unique ecosystem.The Port of Gdynia is a universal modern port specializing in handling of general cargo, mainly unitized cargo transported in containers and in a ro-ro system. Ships traffic in the Port of Gdynia has increased in recent years. Many of ships carry cargo that could severally impact coastal ecosystems if accidentally released. The sea water is influenced by heavy metals and their compounds that originate from both natural and anthropogenic origins. This paper discusses the concentration of heavy metals and their compounds in the Gdynia Port waters. It is based on data collected during the period from 2000 to 2019. The samples were tested and analyzed to find concentration of cadmium, lead and zinc. The level of contamination is lower than the Polish standards. Samples taken from the port area water are non-polluted, and the analysis shows that all metals are within the limits.
4
Content available The concept of sustainable development and safety in maritime transport
Popek Marzenna
Safety and Reliability of Systems and Processes
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2020
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Summer Safety and Reliability Seminar 2020
199--207
EN
The chapter presents opportunities of implementing the concept of sustainable development in sea transportation. The most important areas in which the concept is introduced are discussed. This revolves around the three important pillars of sustainable development: economic, social and environmental. Economic pillar is especially important in view of shipping’s role in the movement of about 90% of trade in goods, energy and raw materials. Social sustainability is based on improvement of maritime safety by development of safety regulations. Because operations at sea involve a high degree of physical risk, the shipping industry is committed to the continuous improvement of its environmental performance. The development and implementation of global standards for sustainable shipping cover safety, environmental protection, security and facilitation. The chapter also presents key advantages of implementing the concept of sustainable development in sea transportation.
5
Content available The influence of organic polymer on properties of mineral concentrates. Part II
Popek Marzenna
Polish Maritime Research
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2013
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nr 2
90--93
EN
Transport of mineral concentrates is associated with high risk of liquefaction of the cargoes. This type of goods containing water may liquefy and shift dangerously across the cargo compartments. Therefore, it is rational to limit the moisture content of the cargoes which may liquefy. To prevent sliding and shifting of ore concentrates in storage biodegradable materials composed of starch are added to the mineral concentrates. The influence of adding starch materials to the mineral concentrates on its parameters determining ability for safe shipment was assessed on the basis of determination of the following parameters: permeability, cohesion and internal friction angle of concentrates.
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