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All Journal Specta Journal of Technology Cerdika: Jurnal Ilmiah Indonesia
Arrohman, Maulana Khafid
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Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Environmental Science Health Professions Public Health Social Sciences

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Emission Inventory of Greenhouse Gases in Yogyakarta for Transportation Sector Arrohman, Maulana Khafid
Cerdika: Jurnal Ilmiah Indonesia Vol. 5 No. 9 (2025): Cerdika: Jurnal Ilmiah Indonesia
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/cerdika.v5i9.2894

Abstract

D.I. Yogyakarta is one of the major provinces in Java, Indonesia, with a population of 3.8 million in 2020. The region is characterized as an education and tourism hub, which has driven continuous growth in transportation activities. The number of registered vehicles in Yogyakarta in 2020 reached approximately 3.5 million units, with motorcycles contributing more than 80% of the total. The increase in motor vehicle usage has raised concerns about the contribution of the transportation sector to greenhouse gas (GHG) emissions and air pollution. However, total emissions from this sector are not well documented. This study estimated GHG emissions from the transportation sector in Yogyakarta. The policy interventions such as EURO IV implementation was evaluated to assess their effectiveness in reducing emissions. The results for 2015 data show that total emissions from the transportation sector reached approximately 2.05 Mt GHGs/year. The implementation of EURO IV alone shows a relatively limited reduction, therefore it is expected that this scenario be combined with other control measures such as the adoption of electric vehicles, CNG, electronic road pricing (ERP), and other complementary strategies.
Pengelolaan Sumber Daya Air Lokal: Pemanfaatan Mata Air RT 7 Kelurahan Sumber Rejo, Kota Balikpapan Sebagai Alternatif Sumber Air Bersih Berkelanjutan Maulani, Melisa Triandini; Febrianti, Nia; Noor Hayati, Rina; Awaliyah, Lia; Arrohman, Maulana Khafid
SPECTA Journal of Technology Vol. 10 No. 1 (2026): Specta Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/specta.v10i1.8481503

Abstract

The need for clean water is one of the essential aspects of community life, especially in areas that are not fully served by the PDAM (Regional Drinking Water Company) distribution network. In Sumber Rejo Subdistrict, particularly in RT 7, the availability of clean water remains a major issue due to the hilly topography, making it difficult for the PDAM pipeline network to reach the area. The local community relies on springs as an alternative water source, which is collected manually without a planned distribution system. This study aims to analyze the potential of the spring in RT 7, Sumber Rejo Subdistrict, as a clean water source based on water quality, flow rate classification, and clean water distribution system planning. The methods used include water quality analysis through laboratory tests covering physical, chemical, and microbiological parameters, flow rate classification based on spring discharge measurements, and distribution system planning using EPANET 2.2 software. The results show that the spring water quality does not fully meet the clean water quality standards according to the Indonesian Ministry of Health Regulation Number 2 of 2023 on Environmental Health, particularly for nitrate, manganese, and aluminum parameters. Based on the flow rate measurements, the spring falls into Class VI, with a flow rate ranging from 0.1 to 1 liter per second, indicating low flow capacity and generally only sufficient to meet water needs on a limited scale (less than 1,000 people). In the clean water distribution network simulation, three alternative distribution scenarios were evaluated, with Alternative 2 showing the most optimal results, with flow velocities ranging from 0.31 to 0.46 m/s
Co-Authors Awaliyah, Lia Melisa Triandini Maulani, Melisa Triandini NIA FEBRIANTI, NIA Noor Hayati, Rina