This resource introduces risk analysis as a tool for responsible environmental decision making in nanotechnology development and provides examples of technologies that demonstrate the need for and benefits of evaluating the risks of nanotechnology. In nontechnical language and with color images, it presents novel approaches, such as life cycle analysis, exposure assessment, and NANO LCRA, for conducting assessments of nanoscale materials and technologies. The book also examines various methods for managing the risks of nanoscale materials in occupational environments and discusses international efforts that address the risk issues of nanotechnology.