Are nanoparticles harmful?
Nanoparticle (noun) (Chemistry) – a particle of something such as a metal, polymer, or oxide, with dimensions in the nanometre range. To answer this question, we must also consider the different kinds of nanoparticles. Nanoparticles have a longer history than many would suppose. Since human beings have inhabited the earth they have been exposed to small particles from a variety of sources. Aerosols (small airbound particles) have always been with us. Some examples include smoke and soot developed from fires, dust from deserts (which can travel over hundreds of kilometres), microscopic seeds, grains and pollens – are also always in the air in some form. Soil blown by wind from the fields contains mineral particles. Volcanic ash is capable (as was evidenced by the recent eruption of Eyjafjallajökull Volcano in Iceland) of soaring and floating high into the atmosphere’s upper air layers of the planet, staying there for months. They are all nanoparticles Any friction of natural or syntheti
