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Quantifying Peak-Hour Traffic Contributions to Urban Air Pollution in Makassar City, Indonesia Yunus, Sattar; Anggraini, Nani; Muis, Ramdiana; Rachman, Indriyani; Matsumoto, Toru
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 9, NUMBER 1, APRIL 2026
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v9i1.25969

Abstract

Aim: This study focuses on the main urban corridors of Makassar City and the short-term exposure levels of CO, PM2.5, and TSP resulting from traffic congestion during peak hours. Methodology and Results: Field measurements were conducted along three major corridors: Sultan Alauddin, A.P. Pettarani, and Urip Sumoharjo. The measurements included pollutant concentrations, traffic counts, and weather conditions during both peak and non-peak periods. The study employed a time-series quantitative observational design. The statistical analyses used were Pearson’s correlation, multiple linear regression, and the independent-samples t-test. The results revealed correlations of 0.98–0.99 between traffic volume and CO concentrations, and 0.94 for TSP. During peak periods, a strong correlation was observed between vehicle volume and PM2.5 levels, which exceeded WHO limits. TSP concentrations were also noticeably above the acceptable exposure range. CO concentrations were influenced by traffic volume and remained low but significant. Conclusion, Significance, and Impact of the Study: During peak traffic congestion, substantial tailpipe and non-tailpipe emissions are released, leading to the accumulation of pollutants along urban corridors. The implementation of a fully functional multi-corridor and multi-pollutant traffic and air quality monitoring system demonstrates an assessment framework that can be applied in other locations. These findings provide evidence to support sustainable urban transport systems and air quality management strategies, with expected outcomes including time-targeted traffic control and reductions in non-tailpipe emissions. Ultimately, these efforts contribute to achieving the Sustainable Development Goals (SDG 11 and SDG 3) related to improved air quality.
STEM-ESD Integration in E-Module to Improve Critical Thinking Skills Marlina, Rika; Permana, Irvan; Jaenudin, Dadang; Rachman, Indriyani; Matsumoto, Toru
Jurnal Pemberdayaan Masyarakat Vol 5, No 1 (2026): Article in Press
Publisher : Yayasan Keluarga Guru Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46843/jpm.v5i1.697

Abstract

Observations and literature reviews indicate that vocational school students' critical thinking skills remain low, even though these skills are important for vocational graduates. One reason is the limited availability of interactive teaching materials for the IPAS Project subject. This study aims to develop a STEM-ESD-based e-module for the IPAS Project on Soil Pollution to improve the critical thinking skills of Year 10 vocational school students. The study uses the Research and Development (RD) method with the ADDIE model. The e-module was developed using Heyzine Flipbook. The validation results showed that the e-module was highly valid, with a score of 90% from subject matter experts, 92% from media experts, and 93% from language experts, as well as a very practical response from teachers (93%). The implementation of the e-module resulted in increased critical thinking skills, with an N-Gain score of 0.67 and very positive student responses. This e-module is suitable for use as an innovative teaching material that supports student-centred learning and sustainable education.
Co-Authors Ade Gafar Abdullah, Ade Gafar Ahmad, Eka Fitriani Akrim, Djusdil Al Fariz, Reza Darma Al Fariz, Reza Dharma Anggraini, Nani Anna Permanasari Apprianda, Anggun Aqilah, Siti Aquarini Priyatna Arisona, Risma Dwi Asyifa Imanda Septiana Bibin Rubini Budi Handoyo Cintami, Cincin D Prasetyorini Dadang Jaenudin Dahlia, Karlina Puspa Dedi Abdul Hadi Deni Darmawan Deni Kurniawan, Deni Didit Ardianto Fariz, Reza Darma Al Fauzan, Ridho Fujianti, Lia Nurbanillah Fumitoshi, Murae Ghina Nisrina Ramadhanti Hafizhul Khair Hapipah, Hepi Herta Novianto Hestiningtyas Yuli Pratiwi Hutagalung, Ira Ida Hamidah Iga Yusmaidah Siregar Indarini Dwi Pursitasari Ira Rumiris Hutagalung Ira Rumiris Hutagalung Ira Rumiris Hutagalung Irfan Tawakkal Irvan Permana Karim, Zaid Kharisma, Vicka Kodama Yayoi Kodama, Yayoi Kristanti Diana Malo Kuntarti Suhartini Kurniasih, Surti Kusnendar, Jajang Laksmi Dewi, Laksmi Lestari, Suci Putri Maghfiroh, Meilinda Fitriani Nur Marlida, Siti Matsumoto Toru Matsumoto Toru Matsumoto, Toru Mega Subekti Muarif, Samsul Muhammad Ma‘arij Harfadli Muhammad Nur Hudha Muharram, Luthfia Hastiani Mulyadi, Dadi Munawir Munawir Murae, Fumithosi Murae, Fumitoshi Nasution, Muhammad Islam Nia Komalasari Nurahim, Fitra Nursafitri, Siti Onoda, Hiroshi Pandyaswargo, Andante Hadi Permanasari*, Anna Pertiwi, Wulan Qiyam Maulana Binu Soesanto Radde, Hasniar A. Rahayu, Ida Rahayu, Mutia Sri Ramadhanti, Ghina Nisrina Ramdiana Rika Marlina, Rika Rohmawatiningsih, Wati Rubini*, Bibin Rusman Rusman Safitri, Embun Khoerunnisa Maya Safitri, Tiffany Saldiana, Nur Kamila Santuso, Edy Sattar Sattar, Sattar Sattar Yunus Sianturi, Julinton Siregar, Iga Yusmaidah Siska Mandalia Slamet Raharjo Soesanto, Qiyam Maulana Binu Sugeng Utaya Sugimaru, Chika Suriansyah, Muhammad Iqbal Suriansyah, Muhammad Iqbal Syaban, Mumun Tawakkal, Irfan Toru Matsumoto Toru Matsumoto Toru Matsumoto Toru Matsumoto Utomo, Laksamana Rayhan Wafa, Wafa Warliyah, Heli Wati Rohawatiningsih Wati Rohmawatiningsih Wiwin Wiwin, Wiwin Yayoi Kodama Yayoi, Kodama Yoki Yulizar Yustiani, Yonik Meilawati