Plastic pollution is creating potentially toxic 'fake pebbles'
Rock pebbles are common along the shores of the sea and rivers. The perpetual motion of the waves and water currents erode and smooth even the hardest rocks. But along the ocean shores of Cornwall in southwest Britain, a team of British scientists noticed some strange pebbles, which were apparently made not from rock, but some lightweight material.
Chemical analysis showed that those supposed pebbles are composed of plastic like polyethylene and polypropylene. Polyethylene is the most common plastic. As of 2017, over 100 million tons of polyethylene resins are produced annually, accounting for 34% of the total plastics market. Its primary use is in packaging like plastic bags, plastic films, containers including bottles, etc.
Such kind of plastic pollution is not new. In 2014 sediments formed by melted plastic and rock fragments were described on a beach on the Big Island of Hawaii. These “
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