Keywords
seawater
groundwater
chloride zones
coastal area
GIS
How to Cite
Abstract
Background: Seawater intrusion refers to the infiltration of seawater into groundwater, either naturally or artificially, due to the extraction of groundwater for domestic purposes. Seawater intrusion can have wide-ranging impacts on various aspects of life, including health issues, reduced soil fertility, structural damage, and groundwater contamination. In the Kendari District area, people rely on springs, dug wells, and drilled wells to fulfill their daily water needs, as well as for tourist and commercial activities. However, signs of seawater intrusion become evident when the water used by residents in the area becomes brackish or even saline.
Objective: This study was to determine the distribution pattern of seawater intrusion and chloride zones in the coastal area of Kendari District, specifically within Kendari City, Indonesia.
Methods: This study employed a descriptive research design and utilized purposive sampling to select the subjects. A total of 20 water samples were collected from residents in Kendari District, Kendari City. The research was conducted at various wells within the district. The collected data were then entered into a Geographic Information System (GIS) to analyze the distribution pattern of seawater intrusion and chloride zones in the coastal area of Kendari District, Kendari City.
Results: The findings revealed an average pH of 7.11 (ranging from 5 to 8.8), an average temperature of 29.4°C (ranging from 29.4 to 32.7°C), an average Total Dissolved Solid (TDS) level of 590.25 mg/L (ranging from 54 to 1,388 mg/L), and an average salinity of 3.05‰ (ranging from 1 to 5‰).
Conclusion: Based on these results, it can be concluded that seawater intrusion is classified as low and is not affecting the wells used by residents in the coastal area of Kendari District, Kendari City, Indonesia.
References
Badan Pusat Statistik Kota Kendari. (2021a). Kecamatan Kendari dalam angka. Kendari: Badan Pusat Statistik Kota Kendari.
Badan Pusat Statistik Kota Kendari. (2021b). Kendari dalam angka. https://kendarikota.bps.go.id
Chen, H., Chen, C.-Y., & Shao, K.-T. (2020). Recovery and variation of the coastal fish community following a cold intrusion event in the Penghu Islands, Taiwan. Plos One, 15(9), e0238550. https://doi.org/10.1371/Journal.Pone.0238550.
Guo, Q., Zhao, Y., Hu, Z., & Li, M. (2021). Contamination transport in the coastal unconfined aquifer under the influences of seawater intrusion and inland freshwater recharge—Laboratory experiments and numerical simulations. International Journal of Environmental Research and Public Health, 18(2), 762. https://doi.org/10.3390/Ijerph18020762.
Herlambang, A., & Indriatmoko, R. H. (2005). Pengelolaan air tanah dan intrusi air laut. Jurnal Air Indonesia, 1(2). https://doi.org/10.29122/Jai.V1i2.2348.
Hounsinou, S. P. (2020). Assessment of potential seawater intrusion in a coastal aquifer system at Abomey-Calavi, Benin. Heliyon, 6(2), e03173. https://doi.org/10.1016/J.Heliyon.2020.E03173.
Lestari, H., Bahar, H., Asfian, P., & Ahmad, L. O. A. I. (2017). Environmental risk factors in coastal area of Wawatu Village, Moramo Sub District, North of South Konawe, Southeast Sulawesi. Public Health of Indonesia, 3(3), 107-111. https://doi.org/10.36685/phi.v3i3.133
Menteri Kesehatan Republik Indonesia. (2017). Peraturan Menteri Kesehatan Republik Indonesia Nomor 32 Tahun 2017 Tentang Standar Baku Mutu Kesehatan Lingkungan Dan Persyaratan Kesehatan Air Untuk Keperluan Higiene Sanitasi, Kolam Renang, Solus Per Aqua, Dan Pemandian Umum. Jakarta: Menteri Kesehatan Republik Indonesia.
Muhardi, M., Faurizal, F., & Widodo, W. (2020). Analisis pengaruh intrusi air laut terhadap keberadaan air tanah di Desa Nusapati, Kabupaten Mempawah menggunakan metode geolistrik resistivitas. Indonesian Journal of Applied Physics, 10(2), 89-96.
Putri, A. W., Suharto, B., & Susanawati, L. D. (2016). Identifikasi pencemaran air tanah akibat intrusi air laut (Studi kasus Pesisir Pantai Ketah Kabupaten Situbondo). Jurnal Sumberdaya Alam dan Lingkungan, 2(3), 32-39.
Seifollahi-Aghmiuni, S., Kalantari, Z., Egidi, G., Gaburova, L., & Salvati, L. (2022). Urbanisation-driven land degradation and socioeconomic challenges in peri-urban areas: Insights from Southern Europe. Ambio, 51(6), 1446-1458. https://doi.org/10.1007/s13280-022-01701-7
Setiawan, A., Juliani, H., & Sa'adah, N. (2017). Kajian yuridis terhadap pelaksanaan Peraturan Direktur Jenderal Perbendaharaan Nomor 22/Per/2013 Tentang Ketentuan Lebih Lanjut Pelaksanaan Perjalanan Dinas Dalam Negeri Bagi Pejabat Negara, Pegawai Negeri, Dan Pegawai Tidak Tetap (Studi pada Direktora). Diponegoro Law Journal, 6(2), 1-14. https://doi.org/10.14203/Risetgeotam2017.V27.430.
Shammi, M., Rahman, M. M., Bondad, S. E., & Bodrud-Doza, M. (2019). Impacts of salinity intrusion in community health: a review of experiences on drinking water sodium from coastal areas of Bangladesh. Healthcare,
Tosepu, R. (2019). Public health significance of coastal communities. Public Health of Indonesia, 5(4), 145-146. https://doi.org/10.36685/phi.v5i4.322
Triawan, D. A., Notriawan, D., & Ernis, G. (2020). Penentuan status mutu air tanah dangkal di sekitar Tempat Pembuangan Akhir Sampah (TPA) Air sebakul Kota Bengkulu menggunakan metode storet: A Cross-Sectional Study. Jurnal Kimia Riset, 5(1), 22-28. https://doi.org/10.20473/Jkr.V5i1.17053.
Xu, Z., Ma, J., & Hu, Y. (2019). Saltwater intrusion function and preliminary application in the Yangtze River Estuary, China. International Journal of Environmental Research and Public Health, 16(1), 118. https://doi.org/10.3390/Ijerph16010118.
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Copyright (c) 2023 Nurmaladewi Nurmaladewi, La Ode Ahmad Saktiansyah, Yoenita Jayadisastra, Andini Sulfitrana, Sitti Mikarna Kaimuddin, Ali Okto