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All Journal RUANG: JURNAL LINGKUNGAN BINAAN (SPACE: JOURNAL OF THE BUILT ENVIRONMENT) JURNAL IPTEKS PEMANFAATAN SUMBERDAYA PERIKANAN Journal of Development Research Jurnal Matematika Sains dan Teknologi Media Ilmiah Teknik Lingkungan Floribunda ULIN: Jurnal Hutan Tropis Jurnal Biogenerasi JURNAL ILMIAH GLOBAL EDUCATION JURNAL BIOLOGI PAPUA Innovative: Journal Of Social Science Research Public Service And Governance Journal
Subekti Nurmawati
Universitas Terbuka
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Public Health Social Sciences Other

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Lichen diversity as an air quality bioindicator in the Mount Tilu Nature Reserve (MTNR) Bandung Arie Aryanto; Subekti Nurmawati; Na’ilah I. Alifiyah; Hikmah Zikriyani; Fauzan Hamdani; Filemon M. Sinyo
Jurnal Biologi Papua Vol 18 No 1 (2026)
Publisher : Jurusan Biologi FMIPA Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31957/jbp.5295

Abstract

MTNR in Pangalengan, West Java, is a conservation area with high biodiversity that is increasingly pressured by tourism and agricultural activities, which may affect air quality. This study aimed to examine the relationship between air quality and lichen diversity as bioindicators of air pollution. A descriptive exploratory method was applied at four site types representing different levels of human activity: forest, roadside, plantation, and tourist areas. The results showed that microclimatic conditions and air quality at all sites were classified as good according to Government Regulation No. 22/2021. However, lichen diversity and thallus composition varied among sites in response to environmental conditions. Crustose lichens dominated roadside and plantation areas with higher environmental stress, while foliose and fruticose lichens were more abundant in forest areas characterized by lower temperatures, higher humidity, and minimal pollution. The presence of sensitive species such as Usnea sp. and Ramalina sp. indicated superior air quality in forest sites. In conclusion, lichen distribution reflects an air quality gradient across the study area, confirming the effectiveness of lichens as reliable bioindicators for ecological monitoring in conservation areas.
Evaluation of the Integrated Marine and Fisheries Center Development Program in Natuna Regency Wiwik Susanto; Sinung Rahardjo; Subekti Nurmawati
Jurnal IPTEKS Pemanfaatan Sumberdaya Perikanan Vol. 12 No. 2 (2025)
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jipsp.v12i2.45526

Abstract

This study aims to evaluate the implementation of the Integrated Marine and Fisheries Center Development Program (Sentra Kelautan dan Perikanan Terpadu or SKPT) in Natuna Regency, focusing on its benefits for fishers and coastal communities. A descriptive qualitative approach was used, involving in-depth interviews, observations, and documentation. The results show diverse perspectives among stakeholders. Some fishers and cooperative managers perceive the SKPT as beneficial in expanding market access and maintaining product quality; however, limited capital, low post-harvest skills, and weak institutional readiness remain major challenges. Meanwhile, officials from the Department of Marine and Fisheries and SKPT managers emphasize the need to improve inter-institutional coordination and landing regulations to optimize the program's effectiveness. The study also reveals protests and resistance from coastal communities, particularly traditional fishers, who feel disadvantaged due to reduced fishing zones and unequal distribution of aid. Furthermore, academic assessments indicate that the program’s success remains partial, with significant physical achievements but limited impact on broad economic welfare improvements. Based on these findings, it is concluded that the success of the SKPT requires a participatory approach, strengthening of local capacity, and continuous evaluation based on comprehensive evaluation models such as CIPP. The implications of this study highlight the importance of aligning physical, social, and economic development to achieve the goals of independence and sustainable welfare for Natuna’s coastal communities.
Evaluation of the Effectiveness of Oil and Gas Industrial Wastewater Treatment: A Case Study of PT Kilang Pertamina Internasional RU III Palembang: Evaluasi Efektivitas Pengolahan Air Limbah Industri Migas: Studi Kasus PT Kilang Pertamina Internasional RU III Palembang Dewi Indriani; Prabowo Eka Soesanta; Subekti Nurmawati
Media Ilmiah Teknik Lingkungan (MITL) Vol. 11 No. 2 (2026): Media Ilmiah Teknik Lingkungan (MITL)
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mitl.v11i2.12729

Abstract

Wastewater treatment in the oil and gas industry plays an important role in meeting environmental quality standards and preventing pollution. This study aims to evaluate the effectiveness of wastewater treatment at PT Kilang Pertamina Internasional RU III Palembang through a comparison of influent and effluent quality. The parameters analyzed include ammonia, Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), sulfide, pH, and oil and fat. The study used a quantitative approach with paired comparative analysis based on 12 months of operational data. The normality test using Kolmogorov–Smirnov showed that some of the data showed a normal distribution so that hypothesis testing was continued using a paired t-test at a 95% confidence level (α = 0.05). The results showed an effective reduction of 58.97% (ammonia), 28.34% (BOD), 37.51% (COD), and 56.81% (oil and fat), while sulfide was relatively low (22.02%) and pH tended to be stable (-0.81%). The results of the paired t-test showed a significant difference (p < 0.05) between influent and effluent concentrations in the main parameters, indicating that the wastewater treatment system was working effectively. However, the suboptimal effectiveness of several parameters indicated the need for optimization of the treatment process.
Co-Authors Ahmad Hadian Pratama Hamzah Ahmad Hadian Pratama Hamzah Ali Suhardiman Arie Aryanto Aubrey Ridha Hadyana Dewi Indriani Elizabeth Novi Kusumaningrum Fauzan Hamdani Fenri Nur Effendi Filemon M. Sinyo Herman Herman Hikmah Zikriyani Lina Warlina Listyarini, Sri Marzuki Marzuki Mustaking Na’ilah I. Alifiyah Nurhasanah Nurhasanah Nurhasanah Nurhasanah Prabowo Eka Soesanta Raflen Aril Gerungan Sinung Rahardjo Suang Andi Palimbong Susi Sulistiana Syafruddin Anshari Wiwik Susanto Wiwin Effendy Yustiati Yustiati