Wikipedia Defines Nanoparticles As- “particles between 1 and 100 nanometers in size. In nanotechnology, a particle is defined as a small object that behaves as a whole unit with respect to its transport and properties. Particles are further classified according to diameter. Ultrafine particles are the same as nanoparticles and between 1 and 100 nanometers in size, fine particles are sized between 100 and 2,500 nanometers, and coarse particles cover a range between 2,500 and 10,000 nanometers”
Because of their very small size, the nanoparticles are able to pass through cell membranes, where their ultimate impact on human physiology has yet to be determined. Boston Environmental sees its task as helping the Nanoparticle developer or user test his/her environment to determine if his/her capture systems are able to control and confine the unintended distribution of nanoparticles beyond the use area, and prevent their escape into the work environment and other parts of the facility where non-process or lab involved personnel are located in his facility.