In article ,
Lawrence Jenkins writes:
John: For London it wasn't just a foggy spell it was 'the' foggy
spell and remarkably ten years after the 52 fog/smog. 62 smog/fog
was almost equal to 1952; since then we have never had another
spell quite like that. Probably the two worse post war and possibly
pre war fog/smog events in the twentieth century to date; for
London that is.

The good thing was that the 1962 fog resulted in a far smaller death
toll than in 1952, thanks to the "Clean Air" act starting to take
effect. Even though emissions of the nasty stuff hadn't yet ceased they
were much lower than 10 years previously.

Out her in rural Surrey I don't remember the 1962 fog as having been too
bad. (I was only four in 1952 and don't remember that fog at all.)
--
John Hall "He crams with cans of poisoned meat
The subjects of the King,
And when they die by thousands G.K.Chesterton:
Why, he laughs like anything." from "Song Against Grocers"