Ashio Mining Pollution was a pollution incident which occurred at Ashio copper mine located around Watarase-gawa River in Tochigi Prefecture and Gunma Prefecture at the end of the 19th and the beginning of the 20th century.
足尾鉱毒事件（あしおこうどくじけん）は、19世紀から20世紀の栃木県、群馬県の渡良瀬川周辺で起きた足尾銅山の公害事件。