BBC: A small group of politicians could be spotted in Parliament Square last month struggling to squeeze wires and tubes into jacket pockets and handbags.
As traffic thundered around them, members of the Environmental Audit Committee (EAC) were being fitted with air pollution monitors.
At the flick of a switch, tubes attached to collars and lapels began to suck in the same air as the MPs, in tests that recorded their exposure to air pollution in Westminster and their constituencies.
Matthew Offord,...