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by JoeAltmaier
2956 days ago
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I don't know how it affects sea-life. Other than the occasional scare-tactic picture of a turtle with a plastic web stuck to it, what is the systemic effect? Sure there's lots of plastic in the ocean; there's lots of sand too. What's really at issue? |
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Besides the particles' danger to wildlife, on the microscopic level the floating debris can absorb organic pollutants from seawater, including PCBs, DDT, and PAHs.[40] Aside from toxic effects,[41] when ingested, some of these are mistaken by the endocrine system as estradiol, causing hormone disruption in the affected animal.[38] These toxin-containing plastic pieces are also eaten by jellyfish, which are then eaten by fish. Many of these fish are then consumed by humans, resulting in their ingestion of toxic chemicals.[42] While eating their normal sources of food, plastic ingestion can be unavoidable or the animal may mistake the plastic as a food source.[43][44][45][46][47]
Marine plastics also facilitate the spread of invasive species that attach to floating plastic in one region and drift long distances to colonize other ecosystems.[15] Research has shown that this plastic marine debris affects at least 267 species worldwide.[48]
Great Pacific garbage patch: https://en.wikipedia.org/wiki/Great_Pacific_garbage_patch