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Debunking the Myths about Garbage Patches

Monday, February 13, 2017 10:50
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This week, NOAA’s Office of Response and Restoration is looking at some common myths and misconceptions surrounding oil spills, chemical releases, and marine debris.

Although most of us have heard the term “garbage patch” before, many may not have a full understanding of what the term really means. In recent years, there has been a lot of misinformation spread about garbage patches and so now, we are here to try to clear up some of these myths.

First, what are garbage patches? Well, garbage patches are areas of increased concentration of marine debris that are formed from rotating ocean currents called gyres and although they may not be as famous as the “Great Pacific Garbage Patch,” there are actually several garbage patches around the world! So let’s address some of the most common questions and misconceptions about garbage patches:

Are garbage patches really islands of trash that you can actually walk on?

Nope! Although garbage patches have higher amounts of marine debris, they’re not “islands of trash” and you definitely can’t walk on them. The debris in the garbage patches is constantly mixing and moving due to winds and ocean currents. This means that the debris is not settled in a layer at the surface of the water, but can be found from the surface, throughout the water column, and all the way to the bottom of the ocean.

Not only that, the debris within the garbage patches is primarily microplastics, tiny plastic pieces less than five millimeters in size. Many of these microplastics are the result of larger plastic debris that has broken into small pieces from exposure to the sun, salt, wind, and waves. Others, such as microbeads from products like facewashes or microfibers from synthetic clothing, are already small in size when they enter the water. With such small debris items making up the majority of the garbage patches and the constant movement of this debris, it’s possible to sail through a garbage patch without even realizing it.

The Great Pacific Garbage Patch is the size of Texas and you can see it from space!

Not so much. Since the garbage patches are constantly moving and mixing with winds and ocean currents, their size continuously changes. They can be very large, but since they’re made up primarily of microplastic debris, they definitely can’t be seen from space.

Why don’t we just clean them up?

Unfortunately, cleaning up the garbage patches is complicated. Since the debris making them up is not only constantly mixing and moving, but also extremely small in size, removing this debris is very difficult. We generally focus removal efforts on our shorelines and coastal areas, before debris has the chance to make it to the open ocean and before they have broken into microplastic pieces, which are inherently difficult to remove from the environment.

Since the garbage patches are primarily made up of very small microplastic debris that is constantly mixing throughout the water column, they definitely can’t be seen from space. (NOAA) ” data-medium-file=”https://usresponserestoration.files.wordpress.com/2017/02/gyre_microplasticfoamparticle_gorept_ak_2013_noaa-720.jpg?w=300″ data-large-file=”https://usresponserestoration.files.wordpress.com/2017/02/gyre_microplasticfoamparticle_gorept_ak_2013_noaa-720.jpg?w=413&h=275″ class=” wp-image-8221″ src=”https://usresponserestoration.files.wordpress.com/2017/02/gyre_microplasticfoamparticle_gorept_ak_2013_noaa-720.jpg?w=413&h=275″ alt=”Hand holding small white plastic ball.” width=”413″ height=”275″ srcset=”https://usresponserestoration.files.wordpress.com/2017/02/gyre_microplasticfoamparticle_gorept_ak_2013_noaa-720.jpg?w=413&h=275 413w, https://usresponserestoration.files.wordpress.com/2017/02/gyre_microplasticfoamparticle_gorept_ak_2013_noaa-720.jpg?w=150&h=100 150w, https://usresponserestoration.files.wordpress.com/2017/02/gyre_microplasticfoamparticle_gorept_ak_2013_noaa-720.jpg?w=300&h=200 300w, https://usresponserestoration.files.wordpress.com/2017/02/gyre_microplasticfoamparticle_gorept_ak_2013_noaa-720.jpg 720w” sizes=”(max-width: 413px) 100vw, 413px” />

Since the garbage patches are primarily made up of very small microplastic debris that is constantly mixing throughout the water column, they definitely can’t be seen from space. (NOAA)

It possible to sail through a garbage patch without even realizing it! (NOAA)

However, preventing marine debris is the key to solving the problem. If you think about an overflowing sink, it’s obvious that the first step before cleaning up the water on the floor is to turn the faucet off—that’s prevention. By working to prevent marine debris through education and outreach, and each doing our part to reduce our contribution, we can stop this problem from growing.

Want to learn more about the garbage patches? Check out this blog post or visit the NOAA Marine Debris Program website where you can find more information as well as our Trash Talk video on the Great Pacific Garbage Patch.



Source: https://usresponserestoration.wordpress.com/2017/02/13/debunking-the-myths-about-garbage-patches/

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