OKPOKWU, Emmanuel Itodo; AGU, Matthew; AKUSU, Christiana. Health Risk Assessment of Heavy Metal Concentrations in Sewage Compost Manure Used for Agriculture in Zaria, Nigeria. Nigerian Journal of Physics, [S. l.], v. 35, n. 3, p. 307–314, 2026. DOI: 10.62292/njp.v35i3.2026.606. Disponível em: https://njp.nipngr.org/index.php/njp/article/view/606. Acesso em: 6 jul. 2026.