일어5반 산성비 by 희망의 공간 https://padlet.com/geo84/m7b5idiy3t7ncoks 일어1-5 네번째 모둠 en-us 2024-05-07 08:11:04 UTC 2024-05-07 08:33:18 UTC hello@padlet.com https://padlet.net/icons/png/1f1ef-1f1f5.png 스모그 geo84 https://padlet.com/geo84/m7b5idiy3t7ncoks/wish/2983026719 2024-05-07 08:13:25 UTC https://padlet.com/geo84/m7b5idiy3t7ncoks/wish/2983026719 Great Smog of London geo84 https://padlet.com/geo84/m7b5idiy3t7ncoks/wish/2983029677 The Great Smog of London, or Great Smog of 1952, was a severe air pollution event that affected London, England, in December 1952. A period of unusually cold weather, combined with an anticyclone and windless conditions, collected airborne pollutants—mostly arising from the use of coal—to form a thick layer of smog over the city.

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