"December 2, 2005." Includes bibliographical references.

Purpose -- Nanotechnology defined -- Why nanotechnology is important to EPA -- What EPA is doing with respect to nanotechnology -- Context for EPA's environmental science roles -- Communication and outreach -- Opportunities and challenges -- Environmental benefits of nanotechnology -- Benefits through environmental technology applications -- Benefits through other applications that support sustainability -- Risk management and statutes -- Risk assessment of nanomaterials -- Chemical identification and characterization of nanomaterials -- Environmental fate of nanomaterials -- Environmental detection and analysis of nanomaterials -- Human health effects of nanomaterials -- Ecological effects of nanomaterials -- EPA's research needs for nanomaterials -- Research needs for environmental applications -- Chemical identification and characterization -- Environmental fate research needs -- Environmental detection and analysis research needs -- Releases and human exposures -- Human health effects assessment research needs -- Ecological effects research needs -- Risk assessment research needs -- Control technologies: spill mitigation research needs Recommendations -- Pollution prevention and environmental stewardship recommendations -- Research recommendations -- Recommendations to address overarching risk assessment needs -- Recommendations for control technologies: spill mitigation -- Recommendations for collaborations -- Recommendation to convene a cross-agency workgroup -- Recommendations for training -- Summary of recommendations -- Appendix A: Glossary of nanotechnology terms -- Appendix B: Principles of environmental stewardship behavior -- Appendix C: Additional detailed risk assessment information -- Environmental fate of nanomaterials -- The environmental detection and analysis of nanomaterials -- Human health effects assessment -- Ecological effects.