15:32DiscoveryNanoparticles21/12/2010 GMTBBC World Service Duration: 27 minutes Wed 22nd Dec 2010, 15:32 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