How dangerous can microplastics be?

"Plastics affect every aspect of the Earth system, from climate change to biodiversity, due to the thousands of chemicals in their life cycle, impacting environmental and human health. A new study calls for understanding plastics pollution beyond waste management, using a planetary boundaries framework to highlight plastics’ global, interconnected impacts." (ScitechDaily, Not As Harmless as Scientists Thought: Plastics Are Threatening Earth’s Stability)

Microplastics are small pieces of plastics that are filling oceans. Those things form in things like the cosmetic industry. The reason why those things are used is that they should not be poisonous. The plastic itself is not poisonous. But when we think about the microplastics. Those things act like nanomachines. When things like krill eat some algae those microplastics get in their body.

The microplastics are very dangerous to bacteria. If bacteria eat those small plastic bites that can cause internal damage to its structure. Sometimes some researchers introduced that some cancer medicines will replaced by microplastic nanomachines. The problem was how to remove those things from the body.

If those microplastics are covered using nutrients that certain bacteria or cancer cells eat, those small plastic bites can slip into those cells and destroy their internal structure. The nano- and microplastics can slip into the cells and even fill them.

There those small plastic bites travel in the food chain. And finally, they return to the human saucer and our food. The thing that makes microplastics dangerous is that it's possible that they get into cells. In those cases, the cells can damaged or even die if those microplastics harm their internal structures.

There are many points where the microplastic can touch and cause damage. Those microplastics can clog the pipelines in cell organs. That causes errors in the cell's normal functions. The microplastic can damage the cell's mitochondria or even destroy them. Or it can cause damage to the cell's nucleus.

Or they can jam the cell's ion pumps. The string- or stick-shaped microplastic can make holes in the cell's protein shell or it can stuck into the ion pump. That keeps the ion pump open all the time. Microplastics can damage even big animal embryos if they get into a morula. But microplastics can endanger things like plankton. And through plankton, those small plastic bites can go into the human body.

https://scitechdaily.com/not-as-harmless-as-scientists-thought-plastics-are-threatening-earths-stability/

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