Before the Bosnian War, the Bosna river was heavily polluted due to heavy industrial activity at the nearby Natron paper and pulp factory, as well as steel and wood industry factories in the southern cities of Zenica and Zavidovići respectively.
Prior to the Bosnian War, the Bosna river suffered from severe pollution caused by heavy industrial operations at the Natron paper and pulp factory and other nearby steel and wood industry factories located in Zenica and Zavidovići.