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Physico-Chemical and Magnetic Characterization of Topsoil Influenced by Vehicular Emissions at Padjadjaran University, Jatinangor Septiani, Fadia Tri; Fitriani, Dini; Agustine, Eleonora; Kirana, Kartika Hajar; Aji, Bayu Gusti Pangestu
Jurnal Phi: Kurnal Pendidikan Fisika & Terapan Vol 11 No 2 (2025)
Publisher : Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/yhp5n953

Abstract

This study investigates the impact of vehicular emissions on the physico-chemical properties of topsoil at Padjadjaran University, Jatinangor. Soil samples were analyzed for pH, electrical conductivity (EC), total dissolved solids (TDS), magnetic susceptibility ()LFll, magnetic domain properties (), and heavy metal concentrations using Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES). The results showed that while pH values remained within the neutral range (6.03–7.40), elevated EC and TDS values were observed at locations with high traffic density, indicating increased ionic content from anthropogenic sources. Magnetic susceptibility values ranged from 506.7 to 1148.7 × 10⁻⁸ m³kg⁻¹, with all sites exceeding 10 × 10⁻⁸ m³kg⁻¹, confirming the presence of ferrimagnetic minerals, and higher values were found near areas with heavy vehicle activity. The ) values, mostly below 4%, suggest a significant contribution from anthropogenic magnetic particles, dominated by stable single domain (SSD) and multi domain (MD) grains. Heavy metal analysis revealed that most elements (Fe, Mn, Cu, Zn, Al, As, Mg, Ca, K, Ni and Cr) were within permissible limits, except cadmium (Cd), which exceeded background crustal levels, suggesting contamination from anthropogenic sources, including vehicle emissions.
Physicochemical and Mineralogical Characterization of Ciuyah Mud Volcano: Rare Earth Elements and Salt Minerals for the Advanced Materials Industry, Indonesia Nurfaradila, Fina; Agustine, Eleonora; Sartono; Nugroho, Amira Sasanti; Pranatikta, Krishna Agra
Spektra: Jurnal Fisika dan Aplikasinya Vol. 10 No. 2 (2025): SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 10 Issue 2, August 2025
Publisher : Program Studi Fisika Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/SPEKTRA.102.02

Abstract

The Ciuyah Mud Volcano in West Java is a notable geological feature resulting from mud extrusion driven by subsurface pressure, buoyancy, and thermal variations. Its unique characteristics provide valuable insights into Earth's subsurface processes. Materials ejected from mud volcanoes often contain valuable minerals that are crucial for scientific investigation and economic application. Of particular interest at this site is the presence of Rare Earth Elements (REEs), which are vital for modern technology. The aim of this study is to provide a comprehensive characterisation of the Ciuyah Mud Volcano. The objectives are to: (1) determine its physicochemical properties using electrical conductivity (EC), volumetric water content (VWC), and total dissolved solids (TDS) measurements; (2) identify the distribution of REEs using X-Ray Fluorescence (XRF) and Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES); and (3) analyze the salt mineralogy using Scanning Electron Microscopy (SEM) and X-Ray Diffraction (XRD). The results revealed high conductivity in the mud, as evidenced by elevated EC and VWC values, as well as high TDS and salinity in the water samples. XRF and ICP-OES analyses confirmed the presence of twelve REEs: Ce, Dy, Eu, Gd, Ho, La, Nd, Pr, Sm, Tb, Sc, and Y. Furthermore, SEM and XRD identified Halite and Helvite as the primary salt minerals, characterized by large, hexagonal crystal structures. These findings highlight the potential of the Ciuyah Mud Volcano as a source of strategic REEs for Indonesia’s advanced materials and clean energy sectors, while also offering local socioeconomic applications, such as salt-based cosmetic products.
ASSESSING CISANTI LAKE SEDIMENTS AS ENVIRONMENTAL QUALITY INDICATORS IN THE UPSTREAM OF THE CITARUM RIVER Fitriani, Dini; Agustine, Eleonora; Hajar Kirana, Kartika; Meliani, Tiara Ayu; Rofifah, Sinthia Anis; Chicilia, Novia; Muhammad, Irfan Handi; Rostika Noviyanti, Atiek; Tamuntuan, Gerald Hendrik
Indonesian Physical Review Vol. 8 No. 3 (2025)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v8i3.490

Abstract

Environmental conditions in aquatic ecosystems could change due to the entry of additional materials, such as heavy metals and magnetic minerals. These materials, referred to as anthropogenic materials, could be derived from human activities. The presence of the materials could affect the magnetic properties and heavy metals content of river water and sediments. We have analyzed magnetic susceptibility and heavy metal concentration in sediments collected from Cisanti Lake. Cisanti Lake is known as “zero kilometers” of the Citarum River. Using the level of heavy metals in sediments, we calculated and evaluated pollution indices in the form of Contamination Factor (CF), Geoaccumulation Index (Igeo), and Pollution Load Index (PLI). The results showed that the magnetic susceptibility of sediments (𝜒𝐿𝐹) was in the range of 317.2 - 2274.9 (× 10-8) m3kg-1, inferring the dominance of ferrimagnetic minerals in sediments. Based on bivariate analysis of 𝜒𝐿𝐹 and the calculated frequency-dependent magnetic susceptibility or cFD (%), domain states of magnetic minerals are clustered at stable single domain (SSD)/multidomain (MD). Pollution indices of CF and Igeo showed that all sample points were contaminated by Cu at a considerable level.  Moderate to significant contamination occurred in the studied area according to the PLI analysis. The positive strong correlation between 𝜒𝐿𝐹 and PLI suggests that magnetic susceptibility serves as a proxy indicator of contamination. 
Magnetic and Morphological Characterization of Magnetic Minerals from Sarimukti Landfill Dwi Putri K Manurung; Dini Fitriani; Eleonora Agustine; Kartika Hajar Kirana; Petrus Ardi Tama
Jurnal Penelitian Pendidikan IPA Vol 11 No 6 (2025): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i6.11229

Abstract

Sarimukti landfill serves as a waste disposal site. Leachate generated from waste accumulation is discharged through pipelines into multiple retention ponds. This study aims to assess contamination levels in leachate deposits by analyzing the magnetic properties and morphology of magnetic minerals collected from four retention ponds, along with measurements of pH, EC, and TDS in the pond water. Magnetic susceptibility values range from 37.4 – 409.5 (×10⁻⁸) m³/kg, indicating ferrimagnetic mineral dominance. The  values range from 0.81% - 5.96%, where  >2% is often associated to pollutant-contaminated soils. A negative correlation between  and  suggests a minor contribution of superparamagnetic grains from pedogenesis. Scanning Electron Microscopy - Energy Dispersive Spectroscopy (SEM-EDS) analysis identifies spherule and hedral magnetic mineral shapes, with O and Fe as dominant elements and minor Ti, indicating magnetite and titanomagnetite presence. Other elements, including C, Mg, Al, Si, K, Ca, and Mn, likely originate from anthropogenic sources.
Physicochemical Characterization of Soils in Different Land Uses: A Case Study in Jatiroke Village, Sumedang, West Java Nashifa Karisma Khanri; Nadia Putri Nur Asri; Hazel Abyudaya Hendra; Sindhy Susantya; Dimastian Hari Susetyo; Kartika Hajar Kirana; Dini Fitriani; Eleonora Agustine
Jurnal Penelitian Pendidikan IPA Vol 11 No 10 (2025): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i10.12863

Abstract

This study aimed to analyze the physicochemical characteristics of soils across different land uses in Jatiroke Village, West Java. Twenty-four surface soil samples were collected from rice fields, plantations, residential areas, and a temporary waste disposal site (TPS) using a stratified random sampling design. Parameters measured included soil color, texture, temperature, pH, electrical conductivity (EC), and total dissolved solids (TDS) through field and laboratory analyses. Principal Component Analysis (PCA) was applied to evaluate parameter relationships and identify dominant drivers of variability. Results showed that rice fields exhibited the highest salinity, primarily linked to the application of nitrogen- and potassium-based fertilizers, while TPS soils were affected by leachate containing organic and inorganic contaminants. Residential areas maintained near-neutral pH and low salinity, and plantations displayed intermediate variability. Descriptive traits such as color and texture varied across land uses but did not strongly differentiate soil conditions. PCA confirmed EC and TDS as the dominant differentiating factors, with pH and temperature contributing secondary variation. These findings demonstrate that fertilizer use and waste leachate are the main causes of elevated soil salinity, emphasizing the importance of monitoring EC and TDS for sustainable land management.
Enhancing Stratigraphic Geomodelling through Integration of Relative Geological Time and Spectral Decomposition: A Case Study from the Volve Field Dinanti Syafirani Zahra; Eleonora Agustine; Ginanjar Hidayat; Rafiki Ramadani; Luthfi Tanton Atthaillah
Jurnal Phi: Kurnal Pendidikan Fisika & Terapan Vol 12 No 2 (2026)
Publisher : Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/p-jpft.v12i2.34465

Abstract

This study aims to enhance stratigraphic interpretation and geomodel construction through the integration of Relative Geological Time (RGT) and spectral decomposition in the Volve Field, North Sea. Conventional seismic interpretation often faces limitations in identifying subtle stratigraphic features such as channels and thin layers due to limited vertical resolution. To address this issue, RGT was applied to generate a stratigraphic framework with dense horizons based on relative geological time, followed by spectral decomposition using Short-Time Fourier Transform (STFT) and Continuous Wavelet Transform (CWT) to improve vertical resolution and delineate depositional features. The results show that the RGT-based stratigraphic framework successfully identified major horizons from Jurassic to Cenozoic intervals, highlighting depositional evolution within the study area. Spectral decomposition analysis at selected frequencies revealed sinuous channel geometries within the Sleipner and Hugin formations. Comparison between methods indicates that STFT provides more laterally continuous channel delineation, while CWT is more sensitive to local amplitude variations. RGB blending further enhanced visualization of channel features and improved geobody extraction. The integrated interpretation produced a three-dimensional geomodel of channel geobodies, indicating fluvio-deltaic to shallow marine depositional systems with significant lateral heterogeneity. This study demonstrates that integrating RGT and spectral decomposition improves stratigraphic interpretation, enhances geobody delineation, and reduces uncertainty in reservoir characterization. The proposed workflow can be applied to other complex depositional systems to improve stratigraphic geomodeling and reservoir analysis.
Augmented Reality–Assisted PDEODE Instruction for Reducing Misconceptions in Momentum and Impulse Wulandari, Novia; Agustine, Eleonora; Febriandirza, Arafat; Prakasa, Esa
Syntax Literate Jurnal Ilmiah Indonesia
Publisher : Syntax Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36418/syntax-literate.v11i4.64099

Abstract

Misconceptions remain a persistent challenge in physics learning, particularly in the topics of momentum and impulse, which may hinder students’ understanding of subsequent physics concepts and problem-solving abilities. This study investigates the effect of implementing Augmented Reality–Assisted Instruction integrated with the PDEODE learning strategy on reducing students’ misconceptions regarding momentum and impulse. The research employed a mixed-method approach using an embedded mixed- method design to obtain both quantitative and qualitative insights. The instruments used included a Four-Tier Momentum and Impulse diagnostic test (FOTMI), Augmented Reality–based student worksheets, and observation sheets for monitoring the implementation of learning activities. The participants consisted of 30 eleventh-grade students (7 male and 23 female) from a public senior high school in Central Java. The effectiveness of the AR- assisted PDEODE strategy was analyzed using Cohen’s d effect size, while the learning implementation was evaluated in percentage form to determine its feasibility and consistency. The findings indicate a reduction in students’ misconceptions from 37.7% in the pretest to 33.5% in the posttest, reflecting a decrease of 4.2%. Furthermore, the analysis of conceptual change revealed that 32% of students experienced Accepted Change (AC), 44% showed No Change (NC), and 25% demonstrated Unacceptable Change (UC). These results suggest that the integration of Augmented Reality with the PDEODE strategy has the potential to support conceptual understanding, although further refinement is needed to optimize learning outcomes.
Co-Authors Achmad Wahyu Pratama Adhitya S. Sunarya Adinda Syifa Azhari Agum Gumelar Prakoso Aji, Bayu Gusti Pangestu Alamta Singarimbun Alyanisa Iftikhary ANGELINA DAKOSTA Anggie Susilawati Anne Nuraini Anne Nurbaity Anwar, Hairil Asep Harja Atiek Rostika Noviyanti AZIZAH, DARIN NUR Bakrun Bakrun Bambang Wijatmoko Budianto, Muhammad Abdillah Budiono, Kharisma Asmarani Budy Santoso BUNAIYA RIZKY BALEY Candra E. Novana CHELSEA SUCIATI NOVIANDRI KUSNAEDI Chicilia, Novia Daffa Dzakwan Shiddiq Deny Juanda Puradimaja Dimastian Hari Susetyo Dinanti Syafirani Zahra Dini Andriani Dini Fitriani Dini Fitriani Donita, Fataya Tasya Dwi Putri K Manurung Eddy Supriyana Eddy Supriyana Ekklesia, Epiphani ERIN WULAN MAGDALENA Esa Prakasa, Esa Fahmy Fathurrohman Fajar, Silvia Jannatul Farhan Dani Indrasta FATHIRIZQI FAWWAZ HYANI Fathurrohman, Fahmy Febriandirza, Arafat Febriella Martinez FILDZA NURFAJRINA SUGANDA FINA FERINA INTANIA FIRDA HANAN BAHJAH Gerald Tamuntuan Gesti Cita Novala Ginanjar Hidayat Glen Matthew Hafiz Ibnu Fadilah HAFIZH AIM ZUFAR Hairil Anwar Hapsoro, Cahyo Aji Harry Mahardika Hazel Abyudaya Hendra HILMY REY HANZYAD SRIGUTOMO I G. P. F. Soerya Djaja Ibrahim, Alpan Idwin Maulana Imam Setiadi Imran Hilman Mohammad Indriana, Rina Dwi Irwan Ary Darmawan Juniarti, Nita Kartika H. Kirana Kartika H. Kirana, Kartika Kartika Hajar Kirana Ladaya A. Rakhmawati Luh Ayu Eka Safitri Septiana Luthfi Tanton Atthaillah M. Habri Zen Maarif, Syaiful Maghfira Dwivani Rahmaputri Mahardika, Harry MAHYANA MAIRUBI KENCANA Mariyanto Mariyanto Maulana Yusuf Ibrahim Mechdi Ghazali Meliani, Tiara Ayu Mentari, Vanessa Zian Mia Uswatun Hasanah MICHELLE LAURA FERDIANA Mimin Iryanti Mokhamad Rizki Ramdhani Muhamad Gina Nugraha Muhamad Gina Nugraha Muhamad Rovie Nawawi Muhammad Abdilllah Budianto MUHAMMAD ADHITYA NUGRAHA Muhammad Al-Fateh Muhammad, Irfan Handi Mulyadi, Yudi MULYANA, ACHMAD ARIF Nabila Risty Rizkita Nadhira Gunawan Nadia Putri Nur Asri NANDIRA PUTRI KAERUDIN Nashifa Karisma Khanri Nawawi, Muhamad Rovie Nico Andrianto Nico Andrianto, Nico Nita Juniarti Novala, Gesti Cita Novia Wulandari, Novia Nugraheni Putri Nugroho, Amira Sasanti Nurfaradila, Fina Pepen Supendi Petrus Ardi Tama Prameswary, Cevilla Amalia Pranatikta, Krishna Agra Prihandhanu M. Pratomo Putri Asyri Wa Indhillah Putri, Amira Sasanti Nugroho Putri, Bilqis Aulia Rafiki Ramadani Rahma Andini Pratiwi Rahmaputri, Maghfira Dwivani Rahmawati, Nabilah RAYHAN SALPA YUSUF Rayna Aulia Zaenudinna Rhistanto Faturohman Suhanto Richardo Barry Astro Rifai, Mochamad Khoirul Rifki Nur Priyansyah Rifky Nauval Riski Darmasetiawan RIZAL NUR FEBRIAN Rizkita, Nabila Risty RIZKY RIYADI RAMADHAN Rofifah, Sinthia Anis Rohman, Muhammad Alkuansinta Saeful Ihsan, Muhammad Raihan Salma Dita Rysqi Puspita Sartono Septiani, Fadia Tri Shafaria, Mileani Shaska Ramadhan Zulivandama Shaska Zulivandama Sindhy Susantya Siti Zulaikah Syahidah Bela Nisa Trimadona Trimadona Tumpal Bernhard Nainggolan Umar Said Vanessa Zian Mentari Wahyu Srigutomo Widya Utami Yudi Mulyadi Yudi Rosandi Zaenudinna, Rayna Aulia Zhafirah Nurul Syarafina