Smelly sock treatment leaks silver nanoparticles - tech - 07 April 2008 - New Scientist Tech

http://technology.newscientist.com/channel/tech/dn13602-smelly-sock-treatment-leaks-silver-nanoparticles.html?feedId=online-news_rss20 --- Silver nanoparticles added to socks to kill the bacteria associated with smelly feet can easily leak into waste water during washing, a new study reveals. The release of these particles could potentially disrupt helpful bacteria used in waste-water treatment facilities, say some researchers, or endanger aquatic organisms in lakes and streams.

kevin comment: wow and socks and fabrics ain't the only ones with nano sliver there's washing machines as well. hmm good thing my intuition told me to avoid such stuff as its likely no one tested if they leaked sliver into the environment.