I have heard that 70% of the plasctic found in this "continents" are made of plastic from our clothes ! Passing directly from the washing machine to the sewer plant and the river !?
If true then...ouahhou we really should take care more than we do now !?
We as a society are responsible for what we do, even grey water or water from household use is supposed to be filtered down to todays standards of 80% of solids (a rather unremarkable solution) sailing vessels are supposed to clean&treat grey water and the on board macerator
systems treating affluents do so to a finer degree than land based plants. That said....
Don't let em kid ya, the vast majority of this nonsense is from discarded trash. Still others find there way into water treatment plants, which do not have the capacity to filter out this garbage. Ideally this kind of trash should find it's way into recycling systems....even land fills would allow the sun to break down the plastics to a much better degree and they would be trapped and capped in land fills or better yet....burned and polished.
Pieces up to 5 millimeters across, or about as big as a BB gun pellets result when bigger pieces of plastic trash get battered by waves and baked by the sun, they break down into tiny bits. Researchers found that these micro plastics make up about 80 percent of total plastic samples collected.
Chemical analysis of the samples revealed varying levels of polycyclic aromatic hydrocarbons, or PAHs, and polychlorinated biphenyls, or PCBs. The bits of plastic, which are basically “solid oil,” take up the pollutants like a sponge. It was found that the plastic pellets eaten by birds show concentrated poisons to levels as high as 1 million times their normal occurrence in seawater.
Starting in 1947 and for approximately 30 years, manufacturing plants operated by General Electric Company (GE) discharged PCBs into the upper Hudson River, with additional releases of PCBs occurring as well.
PCBs are a "group of highly toxic compounds that are known to cause cancer, birth defects, reproductive dysfunction, growth impairment, behavioral changes, hormonal imbalances, damage to the developing brain, and increased susceptibility to disease in animals." Hazardous at even very low levels, they make their way up the food chain and become stored in the tissues of wildlife and fish, posing a health threat if people consume them.
Every striped Bass and other spices of fish migrating from the Hudson to the open Ocean is heavily tainted with pcb's. All migrating fish across the Hudson valley East the to the continental shelf are exposed to this hazard. The continental shelf, about one hundred miles East of the shore line is a breeding ground for many of the Oceans kritters.....from lobsters to tiny fish, much happens along this shelf where water depths change from about 600 ft to 8000 ft rather quickly.