Addresses health and safety issues associated with workplace Nanoparticle exposures * Describes methods to evaluate and control worker exposures to engineered nanoparticles * Provides guidance for concerned EHS professionals on acceptable levels of exposure to nanoparticles * Includes documentation on best practices to be followed by all researchers when working with engineered nanoparticles * Describes current knowledge on toxicity of nanoparticles * Includes coverage on Routes of Exposure for Engineered Nanoparticles