Question

why was coal tar considered a nuisance​

Answer 1

hi

Coal tar was associated with occupational diseases ranging from skin lesions to scrotal cancer even during the mid-19th Century, and was the first substance to be conclusively shown to be a carcinogen (by the Japanese scientist Katsusaburo Yamagiwa in 1915).

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Answer 2

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We all are known that Coal tar was associated with occupational diseases ranging from skin lesions to scrotal cancer even during the mid-19th Century, and was the first substance to be conclusively shown to be a carcinogen (by the Japanese scientist Katsusaburo Yamagiwa in 1915).