Nanotechnology Risks Unknown

The United States is the world leader in nanotechnology -- the newly blossoming science of making incredibly small materials and devices -- but is not paying enough attention to the environmental, health and safety risks posed by nanoscale products, says a report released yesterday by the independent National Research Council. If federal officials, business leaders and others do not devise a plan to fill the gaps in their knowledge of nanotech safety, the report warns, the field's great promise could evaporate in a cloud of public mistrust. "There is some evidence that engineered nanoparticles can have adverse effects on the health of laboratory animals," the congressionally mandated report said, echoing concerns raised by others at a House hearing last week. Until the risks are better understood, "it is prudent to employ some precautionary measures to protect the health and safety of workers, the public, and the environment."