Human Health Risk Assessment of Heavy-metal Exposure in Soil and Water from Oil-producing Communities of Delta State, Nigeria: An Audited Reassessment - Sanda Yusuf Sadau; N. Rabiu; N. N. Garba; Suleiman Bello; Ishaya Iliyasu; Tina Abimbola Adeniji (Asian Journal of Physical and Chemical Sciences, 2026)