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Environmental group Greenpeace is calling for a ban in Britain on plastic “microbeads,” found in many cosmetics, which they warn pollute the oceans and poison marine life.
Campaigners want a total ban on the tiny particles – which are too small to be filtered – in products that are commonly washed down the drains.
Although only making up a fraction of the five to 12 million tonnes of plastic discharged into the oceans each year, these small beads are “probably the most harmful,” said Erik Van Sebille, oceanographer and climate scientist at Imperial College London.
“The smaller (the plastic) is, the most harmful it is,” he told a news conference Thursday on the Greenpeace ship “Esperanza,” moored near Tower Bridge in central London.
“Most animals won’t eat an entire plastic bag, so the smaller it is, the easier it is to be ingested.”
He said there was evidence that the excess of plastic was causing harm to sea creatures, including stopping oysters from reproducing.
The tiny balls, which can be as small as 0.1 millimetres, are found in numerous cosmetic products, from facial scrubs and exfoliators to shower gels and toothpaste.
A 125ml tube of exfoliating cream can contain several hundred thousand microbeads, usually made from polyethylene, explained David Santillo, a researcher for Greenpeace at Exeter University.
Too small to be picked up by water treatment filters, they enter the oceans where they are “very effective at picking up pollutants that are in sea water,” said Santillo.
These pollutants are then passed on to the fish, crustaceans and microplankton that ingest them. (AFP)