In Pictures: The Great Smog of 1952
Filthy dirty

The air was not only dark, tinged with yellow, but stank of rotten eggs. This is because the fog was laced with sulphur and other toxins in the smoke from coal fires. Those who ventured out into the soot-choked air recall returning home with their faces and clothes - even petticoats - blackened. Some were bought to their knees, coughing uncontrollably.

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