Search

As nanotechnology applications are being developed to provide novel solutions to many of the world’s water problems—from developing improved desalination methods to cleaning up emerging pollutants—the international community has a unique opportunity to develop and implement new kinds of governance systems that will ensure that these applications can reach the market quickly, efficiently, and successfully. National and international regulatory bodies, from the Environmental Protection Agency (EPA) in the United States to the United Nations Water Program (UN-Water), can address this challenge of applying nanotechnology to improving water quality by adopting methodologies that spur innovation for development early in the research process, focusing on new ways of disseminating information about nanotechnology water applications, and considering the full life cycle of nanotechnology water applications. This chapter will investigate some of the ways that barriers to collaboration around nanotechnology water applications in the international arena can be overcome. It begins by diagnosing the need for policy interventions with respect to nanotechnology and water and then offers a series of recommendations for approaches that may successfully address these challenges. The main purpose is to present an emerging set of policy options that can accelerate the application of nanotechnology toward improving water quality. However, without appropriate supportive policy options that can advance innovation responsibly, there is a potential that these benefits could be lost due to delay, lack of commercialization opportunity, and poor public outreach and communication.

Exposure assessment is crucial for risk assessment for nanomaterials. We propose a framework to aid exposure assessment in consumer products. We determined the location of the nanomaterials and the chemical identify of the 580 products listed in the inventory maintained by the Woodrow Wilson International Center for Scholars. It was found that in 19% of the products the nanomaterial were nanoparticles bound to the surfaces. Nanoparticles suspended in liquids were used in 37% of the products, whereas 13% used nanoparticles suspended in solids. One percent were powders containing free potentially airborne nanoparticles. Based on the location of the nanostructure we were able to further group the products into categories of: (1) Expected to cause exposure; (2) May cause exposure; and (3) No expected exposure to the consumer. Most products fall into the category of expected exposure, but we were not able to complete the quantitative exposure assessment mainly due to the lack of information on the concentration of the nanomaterial in the products — a problem that regulators and industry will have to address if we are to have realistic exposure assessment in the future. To illustrate the workability of our procedure, we applied it to a product scenario — the application of sun lotion — using best estimates available and/or worst case assumptions.

Nanotechnology is expected to be the key technology of the 21st century. Researchers are exploring ways to see and build at this scale, reengineering familiar substances like carbon and silver to create new materials with novel properties and functions. However, the emergence of nanotechnology also provides us with an opportunity to reshape how the public perceives the government's ability to manage risks posed by new technologies. As the first wave of nano-based products? including cosmetics, dietary supplements, food additives, and consumer products?enters the market, society will begin to ask questions about the health, environmental, and safety implications of these materials. The purpose of this paper is to connect the current state of such public perceptions?both with respect to nanotechnology, in particular, and to emerging technologies, in general? with the current state of nanotechnology product development and to analyze how well situated the public sector is to deal with these challenges.