13:32DiscoveryNanoparticles14/12/2010 GMTBBC World Service Duration: 27 minutes Sat 18th Dec 2010, 13:32 on BBC World Service OnlineAvailable for over a yearListen nowNanoparticles are all around us. What effect could they be having on our environment?GenresFactualScience & NatureFormatsDocumentariesBrandDiscoverySeriesDiscovery: Nanoparticles Source: BBC Online