On October 22, 2012, Safe Work Australia announced the availability of a report entitled Human Health Hazard Assessment and Classification of Carbon Nanotubes, as well as an information sheet on the report. The report recommends that multi-walled carbon nanotubes should be classified as hazardous unless toxicological or other data for specific types imply otherwise. The National Industrial Chemicals Notification and Assessment Scheme (NICNAS) prepared the report in support of Safe Work Australia’s Nanotechnology Work Health and Safety Program. NICNAS extensively reviewed the published literature on the toxicity of carbon nanotubes, and concluded that multi-walled carbon nanotubes may cause damage to lungs through prolonged or repeated inhalation exposure. The report recommends classification as hazardous for repeated or prolonged inhalation exposure and for carcinogenicity. For all other endpoints, NICNAS found that carbon nanotubes either were not classified as hazardous, or cannot be classified as insufficient data are available. The information sheet summarizes the key findings from the report and discusses implications for manufacturers, importers, persons in control of a business or undertaking, and workers manufacturing or using products containing carbon nanotubes.
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