When these small particles are made of synthetic materials such as polyester, polyamide or acrylic,
they take more than 20 years to break down. Some even take 100 years or more.
These are particles that are so small that some are even smaller than 5 microns.
As seen in the graph, microparticle release during the first few washes does not alter drastically, until a point is reached after which microparticle release increases exponentially. In most cases, this happens without it being perceived. It is silent, invisible and inadvertent pollution.