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There Is a River of Plastic Trash Flowing Through London

There Is a River of Plastic Trash Flowing Through London

Scientists have discovered a disturbing river of plastic trash flowing through London along the bottom of the Thames River and have raised concerns about the harm it will do to aquatic wildlife.

Scientists from the Royal Holloway, University of London and the Natural History Museum set out to study invasive Chinese mitten crabs and eels in the river using small fyke nets, but began documenting the amount of trash that was collected during a three month period at seven locations and published their findings in the Marine Pollution Bulletin.

They picked up 8,490 submerged plastic items, that had been anchored to the river bed, in the nets. Items included packages, food wrappers and cups, but 20 percent of the trash was made up of sanitary products that scientists believe were flushed down toilets, according to the Natural History Museum.

Scientists worry that what they found is only the tip of the iceberg, because larger objects would likely have been missed by the nets, and that people are underestimating the amount of pollution in the river, which has generally been considered clean.

“The unusual aspect of the study is that these nets are originally designed to trap fish and crabs moving along the river bed, so we can see that the majority of this litter is hidden below the surface,” said Dr. Dave Morritt, a Senior Lecturer in Marine Biology at Royal Holloway and co-author of the study.

“This underwater litter must be taken into account when predicting the amount of pollution entering our rivers and seas, not just those items that we can see at the surface and washed up on shore. The potential impacts this could have for wildlife are far reaching: not only are the species that live in and around the river affected, but also those in seas that rivers feed into.”

The Thames flows into the North Sea via the Thames Estuary, which are both home to numerous species ranging from fish and birds to seals and bottlenose dolphins.

Dr. Paul Clark, a researcher at the Natural History Museum and co-author of the study explained how this can cause problems for marine species:

“Plastic can have a damaging impact on underwater life. Large pieces can trap animals but smaller pieces can be inadvertently eaten. This litter moves up and down the river bed depending on tides. The movement causes the pieces of plastic to break down into smaller fragments. These are small enough to be eaten by even the smallest animals, which are in turn eaten by larger fish and birds. Once digested, plastic can release toxic chemicals which are then passed through the food chain. These toxic chemicals, in high doses, could harm the health of wildlife.”

The problem of plastic pollution in marine environments clearly isn’t limited to the Pacific Gyre or our oceans. A growing number of studies have pointed to the problems with both plastic trash and microplastics in freshwater environments and their harmful effects on the species who live there and pass them through the food chain.

The Guardian notes that this study comes on the heels of others documenting the issue of plastics, including one that found as many microplastic particles in Italy’s lake Garda as are found in beach sediment and another that found plastic pollutants at higher concentrations in the Great Lakes in the U.S. than any other body of water on earth.

In the hope of changing policies and consumer habits, the Natural History Museum is hosting a Plastic Awareness Weekend on January 4-5 to help educate people about the problems associated with plastic.

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Photo credit: Thinkstock

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175 comments

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2:40PM PST on Nov 3, 2014

sad news but thanks for sharing

9:51AM PST on Feb 2, 2014

So sad,thanks for sharing

11:43AM PST on Jan 30, 2014

TY

3:23AM PST on Jan 30, 2014

I find that Londoners also need some education on why they shouldn't throw out their rubbish just anywhere. The streets and parks would are dumps! I've seen many times people dropping they're rubbish on the floor, with a bin just a few metres away. Really makes me mad.

12:49PM PST on Jan 25, 2014

This really is disheartening. Not only because the Thames flows through the heart of London and should not be viewed as the city's dump, it's a matter of national pride.

4:14PM PST on Jan 24, 2014

Robert is absolutely right in what he says in his comment. We have to stop trashing the earth. Education is essential.

4:32AM PST on Jan 22, 2014

noted

5:35AM PST on Jan 21, 2014

Several companies in the USA using plastic bags have discontinued the practice. As a whole, mankind is trashing this beautiful home. There's no place like home. People MUST be educated. If the worlds leaders would expend the same time, energy, money and dedication in cleaning up the Earth as they do in fighting each other, turning this home into the only ghetto in the entire Universe could be avoided. As it is and as it is commonly stated, "There goes the neighborhood" since worldly leaders took over.

11:28AM PST on Jan 19, 2014

Yikes!

5:44AM PST on Jan 14, 2014

If you are interested in marine plastics pollution then I can't recommend Moby Duck high enough. great read

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