The latest in Dr Gary Fuller's pollution watch series for the Guardian Guardian website
Further details of London’s air pollution during the last day of the 2012 Paralympics can be found in the archive daily bulletins in LondonAir
More information about the Barcelona cycling study (Rojas-Rueda et al 2011) can be found at BMJ
he study on the benefits of increased cycling and walking in the UK (Jarrett et al 2012) can be found at Lancet
Item date 08/10/2012