Assessment of potentially toxic element contamination in wetland sediments of Boracay Island, Philippines.

Autor: Gibaga CRL; Department of Science and Technology - Philippine Nuclear Research Institute (DOST-PNRI), Quezon City 1101, Philippines. Electronic address: crlgibaga@pnri.dost.gov.ph., Samaniego JO; Department of Science and Technology - Philippine Nuclear Research Institute (DOST-PNRI), Quezon City 1101, Philippines., Tanciongco AM; Department of Science and Technology - Philippine Nuclear Research Institute (DOST-PNRI), Quezon City 1101, Philippines., Quierrez RNM; Department of Science and Technology - Philippine Nuclear Research Institute (DOST-PNRI), Quezon City 1101, Philippines., Gervasio JHC; Department of Science and Technology - Philippine Nuclear Research Institute (DOST-PNRI), Quezon City 1101, Philippines., Reyes RCG; Department of Science and Technology - Philippine Nuclear Research Institute (DOST-PNRI), Quezon City 1101, Philippines.
Jazyk: angličtina
Zdroj: Marine pollution bulletin [Mar Pollut Bull] 2024 Nov; Vol. 208, pp. 117079. Date of Electronic Publication: 2024 Oct 02.
DOI: 10.1016/j.marpolbul.2024.117079
Abstrakt: Boracay Island, Philippines, famous for its white sand beaches, has wetlands increasingly threatened by human activities. This study evaluated the ecological state of Boracay Island's wetlands and assessed the consequences of anthropogenic activities on sediment quality. Results showed that sediments from Wetland Nos. 3 and 4 have higher concentrations of potentially toxic elements (PTEs) than Wetland No. 1. Comparative analysis with other Southeast Asian wetlands revealed that Boracay's sediments contain the highest average values of As, Cd, Cu, Ni, Zn. Enrichment factor values suggest that the moderate enrichment of Cd, Cr, Cu, Mo, Pb, and Zn in the wetland sediments can be attributed to anthropogenic activities on the island. Elevated concentrations of Cr, Cu, and Zn above interim sediment quality guidelines indicate occasional adverse biological effects on aquatic biota. These findings provide a crucial baseline for future pollution monitoring and highlight the need for ongoing conservation efforts in Boracay's wetlands.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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