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Marine Plastic Garbage Big Trouble Under The Sea Part 1
- Dec 19, 2018 -

The marine plastic waste crisis is much more complicated than it seems on the surface. According to statistics, the global annual production of plastics is nearly 300 million tons, and between 4 million and 12 million tons of plastic waste is lost from the land to the coast and the ocean every year. But decades of ocean measurements have found that only 250,000 tons of plastic debris are floating in the ocean. So what's the rest?

“We really don't know where most of the plastics will eventually flow into the ocean,” said Kara, a marine plastics scientist at the Woods Hole Marine Education Association in Massachusetts. “The sea and the sea are separated by a few kilometers of water, contaminated by marine plastics. What we lack is better technology."

Marine plastics not only float on the surface

Most scientists believe that most of the plastic that is invisible on the ocean surface may be scattered throughout the deep sea and remain on the ocean floor.

Eriksson, co-founder of the non-profit organization, said: "The myth of plastic islands and beach garbage belts have caused the public to misunderstand the whereabouts of marine plastics." Although ocean currents do cause debris accumulation in certain areas - such as the Pacific Ocean Belt, but Eriksson describes marine plastic as a plastic particle smoke: billions of tiny particles called microplastics, some of which are invisible to the naked eye.

Plastics are not as stubborn as people think, and even if they are carefully watched in a museum, they degrade. On the ocean and on the beach, waves break down plastic into pieces that can stay in the ocean for years.

Microorganisms can be attached to small plastic sheets. The smallest pieces can be swallowed by filter-feeding animals and then excreted in the form of feces and sunk into the sea floor. A 2014 study found tiny plastic fragments found in sediment and coral samples taken from 16 locations in the Mediterranean, Indian Ocean and North Atlantic.

Another small piece of lost plastic may be trapped inside the animal, a familiar story of plastic debris blocking the animal's internal organs. Scientists have also captured zooplankton feeding on microplastics (micro-organisms at the bottom of the food chain), which means that plastic can travel from one animal to another in the marine food chain.

Marine conservation scientist George said that in the process of finding lost plastics, plastics should be prevented from leaking into the ocean.

  The length of the article is divided into two parts, and the lower part is to be read in the list.