Sentences with phrase «decades industrial waste»
The presence of the toxic metal mercury in the environment comes from natural sources, however, in the last decades industrial waste has caused an increase in concentrations of the metal in some areas of the sea.
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Over the following decades other treaties expanded the regulations, culminating in a 1993 amendment to the London Dumping Convention that halted the ocean disposal of all radioactive waste and in a 1995 amendment to the Basel Convention that banned the deposition of the industrial world's lethal excreta in developing countries.