McKie, Robin & Townsend, Mark. Great Smog is history, but foul air still kills (The Observer, 24 Nov 2002).
nih.gov
ncbi.nlm.nih.gov
Davis DL, et al.; and Bates D. A Look Back at the London Smog of 1952 and the Half Century Since; A Half Century Later: Recollections of the London Fog (Environmental Health Perspectives, Dec 2002).