Thousands died in 1952 in a notorious smoggy event in this European capital
Most of the 
deaths were caused by respiratory tract infections, from hypoxia and as a result of 
mechanical... [DOC] [TLE] Free Flashcards about EUROPE - StudyStack [PAR] THIS EUROPEAN CAPITAL'S 4 MAIN CITY CENTER CANALS ARE ... 
THOUSANDS DIED IN 1952 IN A NOTORIOUS SMOGGY EVENT IN THIS 
EUROPEAN... [DOC] [TLE] The "London Fog" that killed over ten thousand people - io9 - Gizmodo [PAR] Oct 26, 2012 ...