Today, 6th December 2012, marks 60 years since the height of the great smog in London. The Guardian has produced a picture gallery of those days and other smogs in London and Manchester.
And 60 years since the day my paternal grandfather Sydney Charles Howes died after cycling in the smog from his teaching job in Nunhead to home in New Cross. As previously mentioned here last year, when a photo blog featuring similar photos surfaced. See The London smog of 1952 for the blog link.