This new volume seeks to give a broad overview of the sources, behaviour and risks associated with nanotechnology. Setting the subject into context this book first of all describes the current range of products containing nano-materials and then looks at the consequences for the environment and human health for the introduction of nanoparticles and nano-tubes. A perspective from the United Stated indicates how in that country the threats posed by nanoparticles are being addressed.It provides comprehensive coverage of the current issues concerning engineered nanoparticles which will be of immediate value to scientists, engineering and policymakers within the field, as well as to students on advanced courses wishing to look closely into this topical subject.