Heavy Metals and Magnetic Susceptibility Signature in Muntingia calabura as Proxy Indicator of Mining Area Pollution Level Siti Zulaikah, Dewi Nur Alfiah, Asfiyanti Latifah, Mochammad Bagas Setya Rahman, Cahyo Aji Hapsoro, Ardyanto Tanjung, Ann Marie Hirt, Hanif ‘Izzuddin Zakly, Muhammad Fathur Rouf Hasan International Journal of Environmental Impacts, 2026 Heavy metals tracing and magnetic susceptibility are generally used as a proxy indicator of pollution in various depositional environments.This research focused on tracing the significant record of pollution of the Muntingia calabura tree to understand the sensitivity in recording pollution and mining production.The area of this research is a hydrocarbon mining site of Wonocolo Geopark in the Bojonegoro, East Java Indonesia.The samples were taken both polluted and non-polluted leaf and bark, from 20 sampling points.Polluted leaves then were characterized by the existence of elevated levels of Pb, Fe, Cu and Zn.The average magnetic susceptibility of leaves increases from 0.86 10 -8 m 3 /kg in non-polluted samples to 13.55 10 -8 m 3 /kg in polluted samples and in the same way, increasing of magnetic susceptibility was also seen in the barks, from an average of 0.21 10 -8 m 3 /kg in non-polluted sample, to 2.55 10 -8 m 3 /kg in polluted sample.The pattern of magnetic susceptibility on leaves and barks at each sampling point is also the same as the pattern of hydrocarbon production which is related to the level of pollution in the area.The increase of magnetic susceptibility in polluted leaves and barks is thought caused by input of magnetic minerals and heavy metals from the fly ash of diesel engines used for hydrocarbon mining process.The heavy metal concentration has the average of Pb (0.070 ppm), Fe (13.322 ppm), Cu (8.434 ppm), and Zn (11.668 ppm).This value has exceeded the threshold of heavy metals content and have a worst impact on health and the environment.Based on Pollution Load Index (PLI) calculations, the most of areas affected by heavy metal pollution in very high and extremly high levels with the highest pollutants input are Fe, Cu, Zn and Pb respectively.
Sustainability in education: Nurturing tomorrow's future teachers through waste separation and recycling intentions Ardyanto Tanjung, Alya Karmilia, Natalia Adel Hando Nderu Mari, Bhigarta Bekti Susetyo, Iya Setyasih, I. Putu Ananda Citra, Rendra Zainal Maliki, Syafrida Selfiardy, Rikardus Feribertus Nikat, Indriyani Rachman, Toru Matsumoto Multidisciplinary Science Journal, 2025 The importance of intentions in determining human environmental behavior is widely recognized; however, their relationship with education, knowledge, and facilities regarding environmental issues is not well understood, especially among pre-service teachers. This study aimed to explore the link between the factors and pathways influencing of pre-service teachers towards separation and recycling behavior on campus in Indonesia. An online structured questionnaire survey was administered to more than 400 students at seven teacher education institutions in six islands in Indonesia. The hypothesised model's links and pathways are tested and analysed using SmartPLS in structural equation models. Environmental knowledge, perceived behavioural control, and environmental knowledge are the three factors that have the most significant relationships with intention of separation and recycling behavior, with environmental education having the most crucial direct impact. In contrast, attitudes and subjective norms fail to convert intention into behavior and do not have a significant direct influence on intention among pre-service teachers. It underscores the importance of environmental education and knowledge in promoting sustainable practices while emphasizing the role of accessible facilities and subjective norms in shaping recycling intentions. Additionally, the study emphasizes the complexity of attitudes and intentions, suggesting that interventions aimed at promoting recycling should consider a diverse range of factors that influence behaviour.
Magnetic Susceptibility and Hydrogen Cyanide Levels as Proxy Indicator for Gold Mining Pollution in River Sediment Siti Zulaikah, Arif Juliansyah, Muhammad Fathur Rouf Hasan, Bambang Heru Iswanto, Mariyanto Mariyanto, Ardyanto Tanjung, Satria Bijaksana, Ann Marie Hirt Pertanika Journal of Science and Technology, 2023 Sumbawa’s Kuris River is one of the rivers contaminated by the island’s traditional gold mine. In order to detect contaminant levels, we examine the magnetic susceptibility, HCN levels, and the heavy metal contents on the river’s surface sediment. Environmental pollution has been widely assessed using a combination of magnetic properties and geochemical analysis. The goals of this research are to discover how magnetic susceptibility (χ) can be used as a first-order proxy for pollution. The relation between susceptibility and HCN is of particular interest, as this is a major contaminant associated with gold mining. The surface sediment samples were collected at ten different locations along the rivers. The magnetic susceptibility was determined using the Bartington MS2B, and the hydrogen cyanide (HCN) concentration was determined using Argentometric titration. The element content was determined by an Atomic Absorption Spectrometer (AAS). The low-frequency magnetic susceptibility (χlf) ranges from 71 to 115×10-8 m3/kg, with an average of 97×10-8 m3/kg, and the χfd(%) analysis ranges from 2% to 4%. The presence of spherical iron oxides, which are indicative of combustion byproducts, was also confirmed by SEM. The samples have low magnetic susceptibility but high levels of Hg and HCN. AAS results showed high Fe, Zn, and Cu concentrations in river sediments, with more variable concentrations of Hg, Mn, As, Cr, and Au. Because Fe, Cu, As, Hg, and HCN have a significant Pearson’s correlation with χfd(%), this parameter can be a useful indicator for contamination caused by gold mining waste.
Developing Digital Natural Laboratory Based on Edutourism for Environmental Geography Sumarmi Sumarmi, Alfyananda Kurnia Putra, Ardiyanto Tanjung TEM Journal, 2023 This study aimed to develop products and test the utility of the natural laboratory based on eco-spatial edutourism. This research was developed in three stages: 1) product development using five steps in the ADDIE model: Analysis, design, development, implementation, and evaluation, 2) conducting validation tests from learning experts, and 3) conducting limited trials in small groups. The research subjects were students of Geography Education study program, State University of Malang, in the environmental course in the academic year 2019/2020. The data were analyzed using the percentage table. The results showed: 1) the digital natural laboratory based on eco-spatial edutourism was valid by the expert validators, 2) the digital natural laboratory based on eco-spatial edutourism qualified for use in higher education learning.
How Eco-Spatial Edutourism Support Sustainability in Coastal Areas in South Malang, Indonesia? Sumarmi Sumarmi, Ardiyanto Tanjung, Alfyananda Kurnia Putra, Siti Zubaidah, Rajendra P Shrestha, Agung Suprianto Anuario do Instituto De Geociencias, 2023 This study aimed to determine the effect of edutourism based on eco-spatial to support sustainability in coastal areas in South Malang, East Java, Indonesia. The qualitative research design is conducted at Kondang Merak Beach, Pesanggrahan Beach, Bajulmati Beach, CMC (Clungup Mangrove Conservation) Tiga Warna, Tamban Beach, and Perawan Beach, which located in South Malang Regency, East Java, Indonesia. Data were taken using participant observation, documentation, and in-depth interviews. Data analysis used qualitative analysis from Miles and Huberman, consisting of three stages, reduction, data presentation, and conclusions. The result found that each beach has unique qualities depending on the surrounding environment and can be developed into an edutourism destination. Edutourism has benefited environmental sustainability, showed in the condition of natural resources in maintained tourist attractions (mangroves, coral reefs, pine shrimp, sea pandanus, turtles, and crabs), and maintained cleanliness at tourist areas.
Assessing and preparedness for earthquake disaster in Salaf-Khalaf Islamic Boarding School Fatiya Rosyida, Neni Wahyuningtyas, Ardyanto Tanjung, Abdul Kodir Iop Conference Series Earth and Environmental Science, 2022 Trenggalek is an earthquake-vulnerable area because it is located in the subduction zone of the Indo-Australian and Eurasian plates. Therefore, it is necessary to have the preparedness of the people who live there in order to reduce disaster risk. The Islamic boarding school that was there was also affected by the disaster. Santri have a high risk of experiencing a disaster because they live in the Islamic boarding school. There have been many studies related to the preparedness of the community and school students, but not many studies related to santri’s preparedness. Therefore, the purpose of the study was to analyze the level of santri’s preparedness against the earthquake disaster in Trenggalek. The research method is a quantitative description using questionnaires and interviews. The sample amounted to 30 and was obtained by stratified random sampling. Data analysis uses the earthquake preparedness index. The results showed that 10% were classified as extremely prepared, 35% were classified as prepared, 43% were classified as unprepared, and 17% were classified as extremely unprepared. This happens because of the lack of knowledge of students about the vulnerability of disasters that exist around the Islamic boarding school and the disaster mitigation efforts.
Thinking level in education: A complete revision of anderson’s taxonomy Ilmi Zajuli Ichsan, Henita Rahmayanti, Agung Purwanto, Diana Vivanti Sigit, Edi Kurniawan, Ardyanto Tanjung, Ruqiah Ganda Putri Panjaitan, Nurlita Pertiwi, Charanjit Kaur Swaran Singh Pedagogika, 2021 The study aimed to revise Anderson’s taxonomy and implement the new taxonomy in learning. The study used the descriptive method and there were 6 types of instruments used according to new taxonomy. The results showed that students’ knowledge scores were still in a very low category at the Natural science, Environment, and Social Science at School and University levels. This study concluded that a new taxonomy had been developed and its implementation indicated that students’ knowledge score was still very low.
Knowledge and participation of geography teachers toward flood disaster risk reduction in sampang indonesia A K Putra, Sumarmi, L Y Irawan, I Deffinika, A Fahmi, A Tanjung Iop Conference Series Earth and Environmental Science, 2021 Floods occur in Sampang Indonesia every year, due to overflowing Kemuning rivers and rising sea levels during spring tide. The morphological conditions which are hills in the middle and syncline valleys in the south with trellis flow patterns with weak and resistant bedrock exacerbate Sampang conditions. This condition increases the threat of urban flooding and rob flooding. One of strategic effort is to know the characteristics and reduce the threat of flooding through Geography subjects in school. Geography teachers as responsible people, act as facilitators and informers who provide knowledge and shape students psychology about flood disasters. Knowledge and participation of geography teachers are very important in flood disaster risk reduction because the teachers are a source of knowledge that is trusted by students. This is a survey research with univariate and multivariate analysis using a quantitative descriptive approach (single frequency and crosstab). The researcher also used inferential analysis in the form of chi-squared to see the relationship of the variables of knowledge and teachers participation in Sampang District. The results of the study indicate that there is a relationship between teachers knowledge and participation in flood disaster risk reduction presented in the learning process. The analysis results show the probability value or Asymp Sig 0.034. so that the knowledge of the geography teachers is very influential.
Challenges of Covid-19 medical waste management in Indonesia: A multi-stakeholder perspective Waste Forum, 2021
An extended theory of planned behavior with environmental spirituality in Indonesia: Study circular economy behavior in urban households E Kurniawan, M Syifauddin, E Suharini, A Tanjung, T Mutia, NA Wibowo, ... Int. J. Environ. Impacts 9 (1), 269-289 , 2026 2026
Heavy metals and magnetic susceptibility signature in Muntingia calabura as proxy indicator of mining area pollution level S Zulaikah, DN Alfiah, A Latifah, MB Setya Rahman, CA Hapsoro, ... International Journal of Environmental Impacts 9 (1), 188-199 , 2026 2026
Pengembangan E-Modul Berbasis Experiential Learning-Storytelling untuk Penguatan Sosial-Emosional Mahasiswa PPG T Mutia, S Sumarmi, A Tanjung, Y Suharto, RR Prasad, DB Maritasari, ... Educatio 20 (3), 589-502 , 2025 2025
Memaknai Kearifan Lokal Tidur di Atas Pasir sebagai Representasi Ekologi Budaya Masyarakat Pesisir Pulau Madura MWK Zain, A Tanjung, IK Astina Entita: Jurnal Pendidikan Ilmu Pengetahuan Sosial dan Ilmu-Ilmu Sosial 7 (2 … , 2025 2025
Sustainability in education: nurturing tomorrow’s future teachers through waste separation and recycling intentions A Tanjung, A Karmilia, N Mari, BB Susetyo, I Setyasih, IPA Citra, ... Multidisciplinary Science Journal 7 (2), 2025143 , 2025 2025 Citations: 5
The impact of environmental education, knowledge, and facility on pre-service teachers’ intention toward waste separation and recycling on campus: teacher education institution … Tanjung, A., Rachman, I. & Matsumoto T Journal of material cycle and waste management , 2024 2024 Citations: 9
Analisis literasi ekonomi digital dalam upaya menurunkan tingkat kemiskinan di Indonesia A Tanjung, DM Rangkuty Ecosains: Jurnal Ilmiah Ekonomi dan Pembangunan 13, 68-79 , 2024 2024 Citations: 2
ANALISIS KADAR LOGAM BERAT PADA AIR DAN SEDIMEN SUNGAI BRANTAS DEKAT DENGAN INDUSTRI PABRIK DI JAWA TIMUR A Tanjung, EIA Diartika, RF Lestari, FF Jihans Integrative Perspectives of Social and Science Journal 1 (02 November), 303-312 , 2024 2024
Sustainable Waste Management in Indonesian Higher Education: Behavioral Insights A Tanjung (No Title) , 2024 2024 Citations: 2
Transformation of environmental education (ee) into education for sustainable development (esd) in indonesia: recent trends, gaps assessment, and policy recommendation I Rachman, BS Ramadan, A Tanjung, T Matsumoto International Journal Of Scientific Advances 5 (6), 1131-1148 , 2024 2024 Citations: 2
Urgensi pengembangan bahan ajar geografi berbasis kearifan lokal A Tanjung, M Fahmi Jurnal Pendidikan Geografi: Kajian, Teori, dan Praktek dalam Bidang … , 2024 2024 Citations: 66
Mapping the spatial transmission risk and public spatial awareness in the use of personal protective equipment: COVID-19 pandemic in East Java, Indonesia P Purwanto, IS Astuti, A Tanjung, F Rohman, KSB Utomo International Journal of Disaster Risk Reduction 97, 104018 , 2023 2023 Citations: 3
Analysis of the effect of student’s learning styles and self efficacy on applied science critical thinking skills based on local wisdom MD Wijayanti Jurnal Pengajaran Matematika Dan Ilmu Pengetahuan Alam 28 (2), 42-47 , 2023 2023 Citations: 2
Magnetic susceptibility and hydrogen cyanide levels as proxy indicator for gold mining pollution in river sediment A Juliansyah, MFR Hasan, BH Iswanto, M Mariyanto, A Tanjung, ... Pertanika Journal of Science and Technology 31 (6), 2689-2702 , 2023 2023 Citations: 3
Spatial Analysis of Temperature Changes in Batu City Due to Land Conversion in 2015-2020 S Sumarmi, MI Akmalani, NRC Putri, NNZ Cholidah, A Tanjung KnE Social Sciences 7 (16), 462–476-462–476 , 2022 2022 Citations: 1
The effect of vegetation density on land surface temperature in Klojen District S Sumarmi, SSR Mariza, RRA Sari, MR Pratama, A Tanjung KnE Social Sciences, 426–437-426–437 , 2022 2022 Citations: 2
Preservation of Vegetation Diversity to Maintain the Riparian Ecosystem of the Sampean Watershed S Sumarmi, TI Pakarti, LFP Destari, N Aini, A Tanjung KnE Social Sciences, 210–218-210–218 , 2022 2022 Citations: 4
Revitalizing an Urban Forest Park in Surakarta S Sumarmi, D Gumilang, FP Pratama, LN Afifah, A Tanjung KnE Social Sciences, 164–175-164–175 , 2022 2022
Pelatihan Mitigasi Bencana pada Pondok Pesantren Sebagai Upaya Mewujudkan Pondok Pesantren Siaga Bencana di Kabupaten Trenggalek N Wahyuningtyas, A Tanjung, F Rosyida, A Kodir, PA El Hayati, ... Widya Laksana 11 (2), 261-269 , 2022 2022 Citations: 3
Assessing and preparedness for earthquake disaster in Salaf-Khalaf Islamic Boarding School F Rosyida, N Wahyuningtyas, A Tanjung, A Kodir IOP Conference Series: Earth and Environmental Science 1041 (1), 012033 , 2022 2022 Citations: 5
MOST CITED SCHOLAR PUBLICATIONS
Urgensi pengembangan bahan ajar geografi berbasis kearifan lokal A Tanjung, M Fahmi Jurnal Pendidikan Geografi: Kajian, Teori, dan Praktek dalam Bidang … , 2024 2024 Citations: 66
Disaster mitigation on cultural tourism in Lombok, Indonesia N Wahyuningtyas, A Tanjung, I Idris, K Dewi Geo Journal of Tourism and Geosites 27 (4), 1227-1235 , 2019 2019 Citations: 50
Tourism Governance in Komodo National Park, Indonesia: Blessing or Curse? TBS Abdul KODIR, Ardyanto TANJUNG, SUMARMI, Risdawati AHMAD geojurnal of tourism and geosite 27, 1401 , 2019 2019 Citations: 31
The dinamics of access on tourism development in Labuan Bajo, Indonesia A Kodir, A Tanjung, IK Astina, MA Nurwan, AG Nusantara, R Ahmad Geo Journal of Tourism and Geosites 29 (2), 662-671 , 2020 2020 Citations: 29
Geography student knowledge of flood disaster risk reduction in Sampang, Indonesia AK Putra, S Sumarmi, L Irawan, A Tanjung Exploring New Horizons and Challenges for Social Studies in a New Normal, 33-37 , 2022 2022 Citations: 27
Thinking level in education: a complete revision of Anderson’s taxonomy IZ Ichsan, H Rahmayanti, A Purwanto, DV Sigit, E Kurniawan, A Tanjung, ... Pedagogika 141 (1), 53-78 , 2021 2021 Citations: 21
Management of tourism areas based on disaster mitigation (case study of Senggigi Beach) N Wahyuningtyas, A Tanjung, A Kodir, H Wijanarko IOP Conference Series: Earth and Environmental Science 412 (1), 012015 , 2020 2020 Citations: 19
Atmospheric learning: Pengembangan digital mind maps berbantuan mind mapping software untuk siswa Geografi SMA SN Oktavia, A Tanjung, LY Irawan Jurnal Integrasi dan Harmoni Inovatif Ilmu-Ilmu Sosial (JIHI3S) 1 (3), 301-310 , 2021 2021 Citations: 13
Disaster mitigation on cultural tourism in Lombok, Indonesia. Geojournal of Tourism and Geosites, 27 (4), 1227-1235 N Wahyuningtyas, A Tanjung, I Idris, K Dewi 2019 Citations: 10
The impact of environmental education, knowledge, and facility on pre-service teachers’ intention toward waste separation and recycling on campus: teacher education institution … Tanjung, A., Rachman, I. & Matsumoto T Journal of material cycle and waste management , 2024 2024 Citations: 9
Knowledge and participation of geography teachers toward flood disaster risk reduction in sampang indonesia AK Putra, Sumarmi, LY Irawan, I Deffinika, A Fahmi, A Tanjung IOP Conference Series: Earth and Environmental Science 683 (1), 012029 , 2021 2021 Citations: 9
Penerapan guided discovery learning untuk meningkatkan kemampuan berpikir analitis pada materi pengelolaan sumber daya alam siswa kelas XI IPS 1 MA NU Gondanglegi AR Purwita, B Handoyo, A Tanjung Jurnal Integrasi Dan Harmoni Inovatif Ilmu-Ilmu Sosial 1 (3), 326-335 , 2021 2021 Citations: 7
The impact of coastal degradation on mangrove ecosystem in North Karawang coastal area AK Pranoto, EBS Haryani, Amdani, A Tanjung IOP Conference Series: Earth and Environmental Science 278 (1), 012061 , 2019 2019 Citations: 7
Inventarisasi Sumber Daya Alam berbasis masyarakat dengan menggunakan Smartphone A Sahrina, S Sumarmi, LY Irawan, YA Wirahayu, A Tanjung, D Fitriani, ... Jurnal Praksis dan Dedikasi Sosial 5 (2), 61-69 , 2022 2022 Citations: 6
Sustainability in education: nurturing tomorrow’s future teachers through waste separation and recycling intentions A Tanjung, A Karmilia, N Mari, BB Susetyo, I Setyasih, IPA Citra, ... Multidisciplinary Science Journal 7 (2), 2025143 , 2025 2025 Citations: 5
Assessing and preparedness for earthquake disaster in Salaf-Khalaf Islamic Boarding School F Rosyida, N Wahyuningtyas, A Tanjung, A Kodir IOP Conference Series: Earth and Environmental Science 1041 (1), 012033 , 2022 2022 Citations: 5
Challenges of COVID-19 medical waste management in Indonesia: A multi-stakeholder perspective A KODIR, A TANJUNG, M ROSYENDRA, M SAPUTRA WASTE, 51 , 2021 2021 Citations: 5
Preservation of Vegetation Diversity to Maintain the Riparian Ecosystem of the Sampean Watershed S Sumarmi, TI Pakarti, LFP Destari, N Aini, A Tanjung KnE Social Sciences, 210–218-210–218 , 2022 2022 Citations: 4
Mapping the spatial transmission risk and public spatial awareness in the use of personal protective equipment: COVID-19 pandemic in East Java, Indonesia P Purwanto, IS Astuti, A Tanjung, F Rohman, KSB Utomo International Journal of Disaster Risk Reduction 97, 104018 , 2023 2023 Citations: 3
Magnetic susceptibility and hydrogen cyanide levels as proxy indicator for gold mining pollution in river sediment A Juliansyah, MFR Hasan, BH Iswanto, M Mariyanto, A Tanjung, ... Pertanika Journal of Science and Technology 31 (6), 2689-2702 , 2023 2023 Citations: 3
