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… . 1 2. Sources of mercury emissions to air and releases to water . . . . . . . . . . . . . . . . . . . . . . . . . . . . … mercury that has built up over decades and centuries in surface soils and oceans. Although the original source of … only 10-25%, because of the slow transfer of mercury from surface waters into the deep oceans. In some species of …

… condensed and pulled into depressions in the planet’s surface. The Earth’s major oceanic depressions form the … Oceans. These oceans are a thin film over the Earth’s surface, on average, only a few kilometres deep. Oceans and … sources include operational discharges such as bilge water discharges, but not the operation of a vessel for the …