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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

2021

Summer Safety and Reliability Seminar 2021

305--315

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.

Many faces of arsenic

Radke Barbara, Dembska Grażyna, Pazikowska-Sapota Grażyna, Galer-Tatarowicz Katarzyna

Oceanological and Hydrobiological Studies

2019

Vol. 48, No. 1

90--104

Arsenic (As) is a natural component of the Earth’s crust. Due to its specific properties, arsenic became e.g. the favorite poison in the 19th century in Europe, a component of an effective insecticide and herbicide in agriculture, a specific chemical weapon during World War II and a medication used to treat various diseases. The bad reputation of this element was confirmed after World War II, when arsenic-based chemical weapons were dumped on the seabed and became a potential threat to the marine ecosystem. The wide distribution of arsenic compounds in the environment necessitated the development of technologies aimed at removing arsenic from the aquatic ecosystem. This study provides a detailed overview of the occurrence, distribution and transformation of arsenic species in the aquatic environment.