Water Quality and Heavy Metal Pollution Status in the Rupat Strait, Indonesia Sri Fitria Retnawaty, Aweng A/L Eh Rak, Ahmad Abas Kutty, Wahyu Meka and Yeeri Badrun BIO Web Conf., 73 (2023) 05015 Published online: 08 November 2023 DOI: 10.1051/bioconf/20237305015