Toward Safe and Sustainable Nanomaterials: Chemical Information Call-in to Manufacturers of Nanomaterials by California as a Case Study


  • William Ryan Department of Toxic Substances Control
  • Sho Takatori Department of Toxic Substances Control
  • Thomas Booze Department of Toxic Substances Control
  • Hai-Yong Kang Department of Toxic Substances Control


While nanomaterials are found in a number of applications, much is still unknown about their properties. Therefore, there are concerns as to their potential health and environmental effects. As the first step to understanding the potential risks of nanomaterials, the California Environmental Protection Agency’s Department of Toxic Substances Control (DTSC) requested information from manufacturers of certain nanomaterials. The Department was given the authority to make such requests under California’s Health and Safety Code, sections 57018-57020. DTSC had requested information to manufacturers of CNTs in 2009 and DTSC expand the call-in to include nanometal oxides (TiO2, CeO2, ZnO), nanometals (Ag, nano zero valent Fe), and quantum dots in late 2010. DTSC asked information to manufacturers regarding analytical test methods, fate and transport in the environment, and other relevant data.

This article reviews potential impacts by nanomaterials and the status of California nanoindustry, and addresses efforts and processes to facilitate data call-in, and finally, expectations and benefits of data call-in by DTSC are evaluated.






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