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The International Agency for Research on Cancer (IARC) recently solicited nominations for substances for review in future IARC Monographs, which identify environmental factors that can increase the risk of human cancer. IARC states that it will select substances for review based on: (a) evidence of human exposure; and (b) evidence or suspicion of carcinogenicity. The 51 substances nominated include carbon nanotubes, which received three nominations:...

On May 15, 2007, the Natural Resources Defense Council (NRDC) issued a report entitled Nanotechnology’s Invisible Threat: Small Science, Big Consequences, which claims that the U.S. government has failed “to use its authority to protect citizens from the potentially dangerous effects of nano-scale chemistry.” NRDC proposes a three-part framework for regulating nanomaterials, and based the framework on a precautionary approach to managing toxic chemicals: Prohibit the unsafe or...