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Jahidin
Jurusan Teknik Geofisika, Universitas Halu Oleo
Computer Science & IT Earth & Planetary Sciences Engineering Physics

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Analisis Kualitas Air Tanah pada Daerah Sekitar Lokasi Pertambangan di Kabupaten Kolaka Ali Okto; Al Rubaiyn; Jahidin; La Ode Sahiddin; La ode Andimbara; Suryawan Asfar
Jurnal Rekayasa Geofisika Indonesia Vol. 5 No. 01 (2023): Edisi April Jurnal Rekayasa Geofisika Indonesia (JRGI)
Publisher : Program Studi Teknik Geofisika FITK UHO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56099/jrgi.v5i01.1

Abstract

This research was conducted around mining sites is Pomalaa district, Kolaka. Nickel mining activities have an impact on water pollution which can reduce water quality in both rivers and groundwater. The decrease in water quality around the mining area can be caused by the flow of runoff from rainwater which carries soil particles to water bodies which makes the water cloudy and may contain heavy metals. This study aims to determine the quality of the soil around the mining area of ​​Pomalaa District. Sampling of surface water and subsurface water was carried out using the purposive sampling method. The Pollution Index method is used to analyze the level of water pollution. The results of the analysis show that mining activities in the study area do not have a significant impact on decreasing air quality even though some hazardous metal elements are found such as Arsenic (Ar), Khomium VI (Cr+6), Iron , Cadmium, Copper (Cu) and Lead (Pb). The dominant influence is the high content of BOD and DO in the waters which makes several locations of minor occurrences according to the calculation of indexing calculations. Geological factors that play a role in decreasing air quality are morphological, lithological and structura
Survei Geohidrologi Menggunakan Metode Geolistrik Resistivitas di Wilayah Desa Mantobua Kecamatan Loghia Kabupaten Muna Al Firman; Jahidin; Usmardin; La Ode Andimbara; La Ode Sahiddin; Indrawati; Al Harun Taate
Jurnal Rekayasa Geofisika Indonesia Vol. 8 No. 01 (2026): Edisi April JRGI (Jurnal Rekayasa Geofisika Indonesia)
Publisher : Program Studi Teknik Geofisika FITK UHO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56099/jrgi.v8i01.193

Abstract

A geohydrological survey using the resistivity geoelectric method has been conducted in the Mantobua Village area, Loghia District, Muna Regency. This research aims to: (1) Determine the resistivity value of the subsurface layers, and (2) Determine the potential presence of groundwater based on the resistivity value of the subsurface layers. Data collection was carried out using 6 measurement lines with the Wenner-Schlumberger electrode configuration. The resistivity values of the subsurface layers in the research area range from 6.31 to 1757 Ωm. The potential presence of groundwater based on the resistivity values of the subsurface layers is as follows: Line 1 is below the surface at a depth of 9.26 m to 52.4 m with a resistivity range of 23.9 Ωm; Line 2 is at a depth of 6.59 m to 59.9 m with a resistivity of 13.2 – 26.5 Ωm; Line 4 is at a depth of 1.25 m to 59.9 m with a resistivity of 26.6 Ωm; Line 5 is at a depth of 1.25 m to 59.9 m with a resistivity of 16.3 – 32.6 Ωm; and Line 6 is at a depth of 9.26 m to 19.8 m with a resistivity of 60.4 Ωm.
Co-Authors Al Firman Al Harun Taate Al Rubaiyn Ali Okto Indrawati La Ode Andimbara La Ode Sahiddin Suryawan Asfar Usmardin Usmardin