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The aim of the present work was to elucidate if a long tradition of the shipyard activity has an influence on a status of mercury contamination of the surface sediments and port watercourse of the city of Gdansk. Concentrations of total mercury (Hg) were determined in surface (0-10 cm) sediments collected from the area of the shipyard canals in the city of Gdansk in 1996. Only a relatively small variations in spatial distribution of mercury in surface sediments examined were found, and the range of concentrations was from 300 to 1300 ng/g dry weight. Despite of relatively high mercury concentrations determined in surface sediments examined the overall range of the values was of the same order of magnitude as indicated earlier in samples collected from the Old Motlawa River and the Dead Vistula River Channel (Martwa Wisla) from the administrative area of the city of Gdansk in 1993-1995. The results did indicate that the shipyard activity doesn't has any impact on mercury load of the sediment in surrounding canals. The source of pollution with mercury in the canals investigated can be a storm water washing out various surfaces both from the urbanised area and including the shipyards of the city of Gdansk.
Organotin compounds are widely used in almost all sectors of industry. Antifouling paints, which were applied to ship hulls to protect from fouling organisms, are the main source of TBT and TPhT derivatives loaded into the sea. The global ban on the use of these compounds in antifouling systems was introduced by the IMO in 2001. However, the ban did not solve the problem of the use of alternatives to TBT in the ship industry. Moreover, the issue of storing the organotins-containing dredged spoils at sea still remains unresolved. The pollution load deposited in port sediments may become an additional threat to the organisms that dwell in a given water basin. In such cases, it is necessary to establish appropriate norms for the quality classification of dredged spoils. Unfortunately, detailed guidelines concerning the disposal of dredged spoils are still lacking.
Stray currents, similarly to the noise level or electromagnetic wave emission, belong to physical factors affecting the state of the natural environment. Hazards to the natural environment have been shown, which can be caused by corrosion breakdowns of industrial structures caused by stray currents. Issues connected with stray currents have been discussed. Their sources and the corrosion hazard caused by these currents have been characterised. Anticorrosion protection methods have been presented of metal structures subjected to the harmful interaction of stray currents.
This article presents the impact of the globalisation on the environment elements. It indicates the kinds of activities which devastate the environment mostly. It shows the proper way to decrease of the environment pollution. It also presents the activities that have been already undertaken on global scale by the international community to stop the environment degradation.
This paper presents the occurrence, properties and origin of chromium, nickel and cobalt in environmental samples - soil, water and the atmosphere. Methods of determining the above-mentioned elements, as well as the ways of preparing environmental samples for chemical analyses were presented. The content of chromium, nickel and cobalt in the atmosphere, the naturally occurring waters and soil was shown, along with the permissible concentrations of the above elements in the three divisions of the environment legally required in Poland and other countries in the world.
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