Where do microplastics go in the oceans?

phys.org | 3/21/2019 | Staff
dorkyrocker (Posted by) Level 3
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Where do tiny bits of plastic go when they are flushed out to sea?

Previous research finds most plastic ends up in the subtropical ocean gyres circling the mid-latitudes of the Atlantic and Pacific oceans. These rotating currents encircle large areas sometimes called "garbage patches" because they are the destination for so much persistent floating junk.

Modeling - Study - AGU - Journal - Geographical

A new modeling study in AGU's Journal of Geographical Research: Oceans finds more microplastic may be reaching Arctic waters than previously thought.

The new study looked at what oceanographers know about ocean currents to ask which types of current are most influential on how microplastics drift.

Plastic - Bits - Millimeters - Flotsam - Size

Generally defined as plastic bits smaller than 5 millimeters, this durable, non-biodegradable flotsam ranges from the size of polystyrene beads to microscopic nanoparticles small enough to squeeze through cell membranes. They can persist in surface waters for years.

Microplastics are unhealthy for animals to ingest, causing physical and metabolic damage to sea life, from tiny plankton to whales. Microplastics...
(Excerpt) Read more at: phys.org
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