Kenneth Chukwuemeka Omireh, Herbert Okechukwu Stanley, John Ugbebor. DETERMINATION OF THE HEAVY-METALS POLLUTION INDEX (HPI) OF GROUNDWATER SYSTEM NEAR SELECTED WASTE DUMPSITES IN PORT HARCOURT. Int. j. innov. eng. res. technol. [Internet]. 2025 Feb. 28 [cited 2025 Aug. 1];12(2):1-14. Available from: https://repo.ijiert.org/index.php/ijiert/article/view/3958