"Nanotechnology has the potential to revolutionize countless products, create computers smaller and faster than once could be imagined, and fight diseases such as cancer. According to the Project on Emerging Nanotechnology, by the summer of 2009 there were 1,015 consumer products using nanotechnology. That represents nearly a 19-fold increase over the 54 products listed in 2005. Nanotechnology involves the manipulation of matter at a near-atomic scale. Nanoparticles measure from 1 to 100 nanometers in size, with 1 billion nanometers forming a meter. For comparison, a billion inches would nearly circle the Earth 2 times."
- A 2004 survey estimatedthat nearly 25,000 U.S. workers were employed at businesses that exclusively produced nanotechnology products.
- Nanoparticles can enter the body through many routes including inhalation, swallowing, ingestion, and absorption through the skin.
- Nanotechnology may present health risks but it can also be used to protect workers. New respirator designs, for instance, use nanotechnology to create more effective filters to block harmful substances.