Aerial view of the toxic Hungarian Flood. The sludge covers fields, streets and canals. The toxic Hungarian sludge flood was caused by the rupture of a red sludge reservoir at an alumina plant in western Hungary and has affected seven towns near Ajkai, 100 miles (160 kilometers) southwest of Budapest. The toxic red sludge killed 7 people and caused over 120 injuries.
This sludge is highly toxic and contains a mixture of heavy metals.