Nanotechnology: An assessment of current occupational health and safety issues

Nanotechnology is a rapidly expanding field and is expected to revolutionize many existing industries and create entirely new ones. Presently, and to a greater extent in the future, there is potential for occupational exposure to free forms of these materials in research and development labs and industrial processes. Free nanomaterials may pose a significant health risk to those exposed as described by recent preliminary data on nanomaterials but also through the work addressing exposures to ultrafine particles both in the workplace and in ambient air. There are presently no published health and safety guidelines for working with nanomaterials. This paper proposes a general frame work for classifying these materials and recommends appropriate hypothetical precautions to allow personnel to work safely with these materials