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Assessment of Heavy Metal Levels in the Freshwater Resources of Island Communities in Surigao City, Philippines |
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| รหัสดีโอไอ | |
| Creator | Jerry T. Cuadrado |
| Title | Assessment of Heavy Metal Levels in the Freshwater Resources of Island Communities in Surigao City, Philippines |
| Contributor | Jerry T. Cuadrado, Rosalia L. Hugo, Roselle E. Bertulfo, Medielyn M. Odtojan, Manny P. Eviota, Louella S. Degamon, Mauricio S. Adlaon, Kier L. Ecle, Carmelin P. Mosa, Monalee A. dela Cerna |
| Publisher | Thai Society of Higher Education Institutes on Environment |
| Publication Year | 2569 |
| Journal Title | EnvironmentAsia |
| Journal Vol. | 19 |
| Journal No. | 1 |
| Page no. | 157-167 |
| Keyword | Bioaccumulation, Freshwater pollution, Nonoc Island, Pandanus sp., Phytoremediation |
| URL Website | http://www.tshe.org/ea/index.html |
| Website title | EnvironmentAsia |
| ISSN | 1906-1714 |
| Abstract | Heavy metal contamination poses a significant threat to aquatic ecosystems, particularlyin island communities affected by mining activities. This study assessed the concentrations ofPb, Ni, and Hg in freshwater resources, aquatic vertebrates (Gerres sp. and Puntius sp.), andselected aquatic macrophytes (Ipomoea aquatica and Pandanus sp.) in the Island communitiesof Surigao City, Philippines. Results showed that while the concentrations of the assessed metalsin the freshwater resources generally remained within permissible limits, bioaccumulation in fishmuscle exceeded the European Food Safety Authority threshold for Pb in Alang-alang (1.07 mg/kg) and Cantiasay (0.538 mg/kg), and Ni in Talisay (1.835 mg/kg). Hg levels were consistentlylow in all samples. Pandanus sp. exhibited significant Ni accumulation, especially in NonocStream (238 mg/kg). This accumulation is potentially influenced by natural geological processesand historical as well as current land use activities. The ability of Pandanus sp. to accumulateNi indicates its potential as a phytoremediation candidate. These findings emphasize the needfor continuous environmental monitoring, policy interventions, and remediation measures tomitigate heavy metal contamination in mining-affected freshwater ecosystems. |
