Plastic bags and bottles are broken into microplastic particles when they are thrown into river and sea. These plastics contaminate fish and sea weed, and eventually come into our body. It was discovered that proteins of animals and beans were also contaminated by nanoplastic particles. Nano is one 1,000th of micro in size.
An average of 24,000 plastic particles was detected in a liter of bottled water, in which there were 10 to 100 times more nanoparticles than microplastics. These microspic particles are considered to come from the plastic bottle. Contamination of animal and plant protein are thought to be due to plastic particles in the soil and ground water. The effect of plastic particles on our health is unknown. But they are found to enter our cells. The additives in the plastic may be more harmful than plastic itself. To avoid the possible harm of microscopic plastic, it is recommended to use reusable bottles instead of single-use bottles.