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Essay / Research Paper Abstract
This 14 page paper discusses various aspects of marine pollution. Bibliography lists 12 sources.
Page Count:
14 pages (~225 words per page)
File: D0_HVMarPol.rtf
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Unformatted sample text from the term paper:
to living resources, hazards to human health, hindrances to marine activities including fishing, impairment of the quality of sea water and reduction of amenities" (Marine pollution-EEA, 2006). This is the
same definition, with some slight rewording, as that developed by the United Nations. It is all-encompassing and indicates the extent and seriousness of the problem. Marine Pollution in General Marine
pollution is dangerous for many reasons; well look at just a few. First, there is the question of metal contamination. Obviously not all metals are harmful; it depends on the
state theyre in (Marine pollution questions). Most of the time metals in the sea are in solid form and are harmless; the problems arise when metal ions "are complexed with
other ions to form ionic compounds. For example copper (Cu2+) can unite with sulphate in seawater (SO4 2-) to form copper sulfate (CuSO4). This ion, along with many other metal
ions, is soluble in seawater and is extremely toxic to marine organisms" (Marine pollution questions). Soluble metals occur naturally in the oceans, and can enter that environment via "weathering
of rocks, leaching of soils and vegetation, and volcanic activity" (Marine pollution questions). However, human activity also contributes to this type of pollution via ore processing, waste disposal, raw materials
processing and burning fossil fuels, among others (Marine pollution questions). Rainwater also carries "significant concentrations of cadmium, copper and zinc from the atmosphere to the oceans" (Marine pollution questions).
Its true that in minute amounts these metals are harmless (in fact most plants and animals require them to grow), in large concentrations they are extremely harmful (Marine pollution questions).
They have serious effects on plankton, on which other animals feed; these effects include "cessation of growth and development; inhibition of photosynthesis; reduction in chlorophyll content; and increased cell permeability
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