Heavy Metal Contamination in Biomass-Based Fuels: Risks and Mitigation Strategies. International Journal of Energy & Environment, [S. l.], v. 1, n. 1, p. 56–63, 2025. Disponível em: https://e-journal.scholar-publishing.org/index.php/ijee/article/view/105. Acesso em: 9 sep. 2025.