minamata disaster

By alexasw
  • minamata disaster

    mercury used for hat-making
    mad hatter based on this- made people crazy
    1932, chisso discharges wastewater
    - microorganisms made inorganic mercury, ingested by fish and affected humans
    denied allegations in 1950
  • disease caused disabilities in victims

    destroyed fishing industry
    victims and family were ostracized
    court made Chisso and Japanese govn. pay compensation
  • results

    1972- minamata patients attended UN conference
    1977- sediment in Minamata Bay was dredged
    1997- declared free of mercury contamination
    mercury use regulated