Other less known threats include the use of plastic debris
by ‘‘invader’’ species and the absorption of polychlorinated biphenyls from ingested plastics. Less conspicuous forms, such as plastic
pellets and ‘‘scrubbers’’ are also hazardous. To address the problem of plastic debris in the oceans is a difficult task, and a variety of
approaches are urgently required. Some of the ways to mitigate the problem are discussed.
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