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All Journal Journal of The Physical Society of Indonesia
Nanda, Fauzan Surya
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Physics

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Air Quality Dynamics in the Vicinity of PT. Semen Padang, Padang City, Indonesia: Insights from Sentinel-5P Data During 2023 Nanda, Fauzan Surya
Journal of the Physical Society of Indonesia Vol. 1 No. 1 (2025): (April 2025)
Publisher : The Physical Society of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35895/jpsi.1.1.26-35.2025

Abstract

This study aims to evaluate air quality in the vicinity of PT. Semen Padang, Padang City, West Sumatra, Indonesia, throughout 2023, utilizing data from the Copernicus Sentinel-5P satellite. The analysis reveals significant variations in the concentrations of pollutants such as carbon monoxide (CO), nitrogen dioxide (NO₂), sulfur dioxide (SO₂), and ozone (O₃). Higher pollutant concentrations were observed in urban areas, influenced by industrial activities and vehicular emissions. Levels of CO and O₃ frequently exceeded the World Health Organization (WHO) guidelines, posing potential health risks. Although most pollutant concentrations remained within safe limits, the findings underscore the importance of continuous air quality monitoring and the implementation of targeted mitigation measures to preserve environmental quality and safeguard public health, particularly in densely populated areas.
Vulnerability Analysis of Andalas University Library Building Using Microtremor HVSR Method Pohan, Ahmad Fauzi; Putri, Yunita; Algusduri, Nopra; Islami, Keisyah Putri; Fitri, Intan; Fiona, Gusti; Deshafa, Abdul Fadhila; Fajri, Rahmad; Erawati, Yuni; Rahmah, Rika Amalya; Jannah, Azani; Nanda, Fauzan Surya; Zai, Febriwati
Journal of the Physical Society of Indonesia Vol. 1 No. 1 (2025): (April 2025)
Publisher : The Physical Society of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35895/jpsi.1.1.36-44.2025

Abstract

This research aims to analyze the vulnerability of the Andalas University Library UPT Building which is located in an earthquake-prone area using the microtremor HVSR method. Measurements were taken at 20 points on each floor of the building to determine the natural frequency value, amplification factor, and seismic vulnerability index. The results show that the natural frequency values have a stable distribution pattern on most floors, with small variations on certain floors due to mass distribution or structural stiffness. The highest amplification values were found on floors 2 and 3, indicating the potential for local resonance. The highest seismic vulnerability index is on floor 2 with values up to 750, indicating the need for more attention to the design and structural strength of that floor. The HVSR method proved effective in analyzing the dynamic characteristics and potential vulnerability of buildings to earthquakes, providing important information for risk mitigation in disaster-prone areas.
Co-Authors Algusduri, Nopra Deshafa, Abdul Fadhila Erawati, Yuni Fajri, Rahmad Fiona, Gusti Fitri, Intan Islami, Keisyah Putri Jannah, Azani Putri, Yunita Rahmah, Rika Amalya Zai, Febriwati