Lead contamination in coastal sediments, Buyat Bay
Spatial assessment in North Sulawesi, Indonesia
DOI:
https://doi.org/10.24252/sociality.v5i2.67262Keywords:
coastal pollution, environmental monitoring, heavy metals, lead contamination, marine sedimentAbstract
Heavy metal contamination remains a persistent environmental and public health concern in coastal ecosystems, yet recent information on lead (Pb) accumulation in Buyat Bay sediments is limited; this study provides an updated site-specific assessment of Pb distribution and sediment-quality status. This study aimed to analyze Pb concentrations in sediments of Buyat Bay, North Sulawesi, Indonesia, and compare the measured values with the National Oceanic and Atmospheric Administration (NOAA) Sediment Quality Guidelines. A descriptive survey design was applied through field sampling and laboratory analysis. Sediment samples were collected from 16 purposively selected sampling points in November 2025 and analyzed at the Center for Health Laboratory of Makassar using Inductively Coupled Plasma–Mass Spectrometry (ICP-MS). Pb was detected in all sediment samples, with concentrations ranging from 2.6145 to 30.2823 µg/g and an average concentration of 6.7405 µg/g. The highest concentration was recorded at Point 9, indicating spatial variation in Pb accumulation across the bay. All concentrations were below the NOAA Effects Range Low value of 46.7 µg/g, suggesting a relatively low probability of adverse biological effects. Nevertheless, the widespread detection of Pb supports continued environmental surveillance, integrated monitoring of sediments and marine biota, and preventive coastal management to minimize future ecological and public health risks.
References
Afu, L.O.A. and Luturmas, A. (2022) ‘Content of heavy metals lead (Pb) and cadmium (Cd) in sediments in Tanjung Oyster Waters, South Konawe’, Journal of Fish Health, 2(1), pp. 8–13.
Ekamaida, E., Kusmana, C. et al. (2025) ‘Cadmium (Cd) and lead (Pb) levels in oysters, water, and sediment in the Cunda Strait, Lhokseumawe City’, Indonesian Journal of Marine Sciences, 30(2).
El-Sharkawy, M., Alotaibi, M.O., Li, J., Du, D. and Mahmoud, E. (2025) ‘Heavy metal pollution in coastal environments: Ecological implications and management strategies: A review’, Sustainability, 17(2), p. 701.
Fathona, S., Rachmayani, R., Nurhidayati, A.U. and Utami, D.A. (2025) ‘Study of heavy metal lead (Pb) in the northern waters of Belitung Regency’, Bulletin of the Marine Geology, 40(1), pp. 28–43.
Fauzan, A.A., Utami, D.A., Rachmayani, R. and Nurhidayati, A.U. (2024) ‘Study of heavy metal lead (Pb) content in the coral reef environment of Panjang Island, Banten’, Bulletin of the Marine Geology, 39(1), pp. 42–58.
Fendjalanga, S.N.M., Krisyeb, Y. and Abubakar, A. (2023) ‘Konsentrasi logam berat timbal (Pb) pada sedimen di perairan Pantai Kupa-Kupa Kabupaten Halmahera Utara’, Journal of Coastal and Deep Sea, 1(1), pp. 13–21.
Handayani, C.O., Zu’amah, H. and Sukarjo, S. (2025) ‘Human health risk assessment of heavy metals in the Serayu River water, Central Java-Indonesia’, Journal of Environmental Health, 17(2).
Lagoari, M.C., Riogilang, H. and Hendratta, L.A. (2025) ‘Analisis kualitas air Sungai Buyat sebagai dampak kegiatan pertambangan emas rakyat’, TEKNO, 23(91).
Mokoagow, D., Kasim, M., Hutagalung, R. and Akasea, N. (2023) ‘Geologi daerah Buyat dan sekitarnya, Kecamatan Kotabunan, Kabupaten Bolaang Mongondow Timur, Provinsi Sulawesi Utara’, Journal of Applied Geoscience and Engineering, 2(2), pp. 94–107.
NOAA (2022) Sediment Quality Guidelines. National Oceanic and Atmospheric Administration.
Oros, A. (2025) ‘Bioaccumulation and trophic transfer of heavy metals in marine fish: Ecological and ecosystem-level impacts’, Journal of Xenobiotics, 15(2), p. 59.
Rayhan, A. and Pramesty, W.A. (2023) ‘Implementasi Minamata Convention on Mercury terhadap kasus pencemaran merkuri dan arsen di Teluk Buyat Indonesia’, Tirtayasa Journal of International Law, 2(1).
Sastra, K., Nugraha, M.A. and Pamungkas, A. (2023) ‘Status kontaminasi logam berat timbal (Pb) dan tembaga (Cu) pada sedimen permukaan Pantai Sampur, Kabupaten Bangka Tengah’, Journal of Tropical Marine Science, 6(2), pp. 137–146.
Simatupang, M.M., Veronika, E., Irfandi, A. and Azteria, V. (2024) ‘Potential impacts of lead on health: a review of environmental exposure, population at risk, and toxic effects’, Journal of Environmental Health, 16(3), pp. 277–288.
Siregar, R.S., Putra, D.P.E. and Nugraha, A. (2025) ‘Distribution and accumulation of lead (Pb) in coastal sediments of Belitung waters’, Bulletin of Marine Geology, 40(1), pp. 15–27.
Tamba, S.N., Yulianto, B. and Widowati, I. (2025) ‘Kandungan timbal (Pb) pada air laut, sedimen, dan kerang hijau (Perna viridis Linnaeus, 1758) di Pantai Utara, Semarang’, Journal of Marine Research, 14(4), pp. 759–772.
Tamburini, M., Badocco, D., Ercadi, R., Turicchia, E., Zampa, G., Gasparini, F. et al. (2022) ‘Bioaccumulation of mercury and other trace elements in the edible Holothurian Holothuria atra in relation to gold mining activities in North Sulawesi, Indonesia’, Frontiers in Marine Science, 9, p. 863629.
Triyanto, H.C., Nuraini, R.A.T. and Haryanti, D. (2024) ‘Akumulasi logam berat timbal (Pb) pada air, sedimen, dan lamun (Thalassia hemprichii) di Pulau Kelapa Dua, Kepulauan Seribu’, Journal of Marine Research, 13(1), pp. 37–44.
UNEP (2025) Heavy metals. United Nations Environment Programme. Available at: https://www.unep.org/cep/heavy-metals (Accessed: 19 November 2025).
United States Environmental Protection Agency (2020) Technical fact sheet: Bioaccumulation and biomagnification. Available at: https://www.epa.gov (Accessed: 8 December 2025).
Widiyanto, T., Pratiwi, N.T.M. and Setyobudiandi, I. (2024) ‘Bioaccumulation of lead (Pb) in edible marine fish and its potential health risk in Indonesian coastal waters’, Journal of Environmental Health, 16(4), pp. 301–312.
World Health Organization (2024) Lead poisoning and health. Geneva: World Health Organization. Available at: https://www.who.int/news-room/fact-sheets/detail/lead-poisoning-and-health (Accessed: 20 November 2025).
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