It seems that only about a tenth of the plastics end up in the oceans compared to what was previously thought. This is the result of a recent analysis by Mikael Kaandorp, who joined Forschungszentrum Jülich in November last year from Utrecht University in the Netherlands. The bad news is that it lingers longer and that there is currently 10 times more plastic waste floating in the sea.
, helps to solve the mystery of the"missing plastic" in the oceans and received worldwide attention.
, has gone. In the following interview, the data scientist Mikael Kaandorp from the Jülich Institute of Bio- and Geosciences talks about how to interpret the new figures and the research questions he is currently pursuing.In 2014 and 2015, there were widely cited studies concluding that about 8 million metric tons of plastics enter the ocean every year. But researchers could only find about 250 thousand tons at the. There is a huge mismatch.
We know this because our model gives a quite concise picture of the mass balance. If you know how much plastics is entering the ocean every year and how much is currently floating in the ocean you can estimate how long it will stay there. A crucial point of our study was the finding that larger items that exceed 2.5 cm in size make up the bulk of the mass, about 95 percent, while small microplastics are the most numerous in our ocean. This has likely been overlooked in previous studies.
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