Pollutionwatch: a smog warning from 1948

70 years ago a six-day fog enveloped London, but its message did not hit homeAir pollution history is littered with early warnings that were not heeded. November 2018 marks the 70th anniversary of one of these. On Friday 26 November 1948, a dense fog developed in London. It lasted six days. Football matches were cancelled and transport disrupted. Traffic convoys were formed to follow trams, each guided by a conductor with a torch. Initially, conductors walked alongside buses but this became impo