THE HAGUE: Plastic that is dumped in rivers and then ends up in the world’s oceans is one of the major sources of marine pollution, a new study said this week, with Asian waterways the main culprits.
Researchers at The Ocean Cleanup -- a Dutch foundation developing new technologies for ridding the oceans of plastic -- say rivers carry an estimated 1.15-2.41 million tonnes of plastic into the sea every year, an amount that need between 48,000 to over 100,000 dump trucks to carry it away.
Their latest study, published in Nature Communications journal on Wednesday, added that two-thirds of the pollution comes from the 20 most polluting rivers, the overwhelming majority in Asia with the Yangtze River in China topping the list.
The Yangtze, the world’s third-longest river, "is the largest contributing catchment", dumping some 330,000 tonnes of plastic into the East China Sea.
This is followed by the Ganges River in India and a combination of the Xi, Dong and Zhujiang Rivers in China as well as four Indonesian rivers: the Brantas, Solo, Serayu and Progo.
The rest of the world shared the remaining 14 percent of plastic pollution via rivers, The Ocean Cleanup researchers said.
"Most of this river plastic input is coming from Asia, which emphasises the need to focus on monitoring and mitigation efforts in Asian countries with rapid economic development and poor waste management," they said.
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