Protesters claim ‘life-threatening’ air pollution is produced by mines supplying metal for London 2012 Olympic medals
See http://www.guardian.co.uk/business/2012/apr/19/olympic-medal-pollution-protesters-rio-tinto?CMP=twt_gu.
An audio recording of the company’s AGM is available below. The question and answer session, in which numerous concerns about Rio Tinto’s impacts were raised, begins at 41.41. Place your cursor on the sound level graph and click. A line should appear in orange, which you can drag to the time you require.