The waste extinguished all life in the Marcal river, and reached the Danube on 7 October, prompting countries located further down the river (Slovakia, Croatia, Serbia, Romania, Bulgaria, Ukraine) to develop emergency plans in response.
Marçal Justen Filho (born 1955), a Brazilian attorney and Law professor
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Maria Mercè Marçal (1952-1998), a Spanish poet, professor, writer and translator
In October 2010, the Marcal was contaminated in a chemical spill by red mud and suffered complete loss of aquatic life.
Nuno Ricardo Oliveira Marçal (born Campanhã, 14 November 1975) is a Portuguese basketball player.