In some areas of the oceans, the amount of microplastic is so high that it forms floating islands. These islands of plastic were formed because the currents, with a circular motion, compacted the plastic that reached the sea from the mainland in a limited area. The average is impressive: more than 3 million fragments per square kilometer are found here. The most abundant plastics are those that derive from our daily objects: polyethylene, polypropylene, polyamide, polyvinyl chloride, polystyrene. Every minute, 300 kilograms of plastic end up in the sea, eight million tons a year. There is only one percent of the total on the surface, five percent washes up, the rest settles to the bottom. Over 90 percent are micro and nano-plastics. Primary MPs arrive in water already very small: for example, they are those contained in some cosmetics or released by washing in the washing machine. Microplastics also increasingly threaten Italian lakes and represent a problem for the environment, water quality, people’s health and biodiversity. Our project, after having carried out an experimental study on the recovery of microplastics present in the waters of Lake Maggiore, focused on the reduction of microplastics deriving from domestic washing machines through the use of magnetic nanoparticles created with various low-cost and low-impact green processes. MP recovery occurs through a technological filter to be applied to the washing machine exhaust.