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Toxic Nanotube Production
28 August 2007, 13:32

Categories: nanotubes-wires-fullerenes responsible-nanotechnology

According to a study presented at the national meeting of the American Chemical Society (ACS) in Boston earlier this week, the by-products discharged to the environment during carbon nanotube production include a cocktail of carcinogens, smog-forming compounds and greenhouse gases. Analysis of the by-products showed the presence of at least 15 aromatic hydrocarbons, including four types of toxic polycyclic aromatic hydrocarbons (PAHs), similar to those found in cigarette smoke and car-exhaust emissions. The most harmful PAH identified was benzo[a]pyrene, a known human carcinogen. Other by-products included hydrocarbons that contribute to smog and ozone formation in the lower atmosphere.
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