Londoners had become accustomed to the notorious pea soup fog swirling over their streets until 1952, when the Great Smog of London shut down all transportation in the city for days and caused more than 4,000 respiratory deaths.

伦敦人已经习惯了臭名昭著的豌豆汤雾气在他们的街道上空盘旋，直到 1952 年，伦敦的大雾霾导致该市所有交通关闭数日，并导致 4, 000 多人因呼吸道疾病死亡。