To do this, scientists climbed Mount Fuji and Oyama, collected water from the mists that enveloped the peaks, and then applied advanced imaging methods to the samples to determine their physical and chemical properties, Aljazeera reported, according to Ukrinform.

Specifically, the study, published in the journal Environmental Chemistry Letters, states that the team found nine different types of polymers and one type of rubber in airborne microparticles ranging in size from 7.1 to 94.6 micrometers.

Each liter of cloud water tested contained between 6.7 and 13.9 plastic particles.

When microplastics enter the upper atmosphere and are exposed to ultraviolet radiation from sunlight, they break down and contribute to the formation of greenhouse gases, said the study’s lead author, Hiroshi Okochi of Waseda University.

Waseda University said the study showed that “microplastics enter the body of both humans and animals and are found in many organs such as the lungs, heart, blood, placenta and feces.”

“10 million tonnes of these plastic fragments enter the ocean, are released in ocean spray and enter the atmosphere. This means microplastics may have become a significant component of clouds and contaminate almost everything we eat and drink through “plastic rain”, the university said.

Microplastics are plastic particles less than 5 mm in size that come from industrial waste, textiles, synthetic car tires, personal care products and other sources; It had already been discovered in fish, in the Arctic marine crisis, and in the snows of the Pyrenees between France and Spain.

A group of Japanese companies is interested in the development of the world’s first plastic beverage bottles made from petroleum-based materials, Ukrinform reports.

The photo is self-explanatory