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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Kesehatan Masyarakat (JKM) CENDEKIA UTAMA Jurnal Imejing Diagnostik The Indonesian Journal of Occupational Safety and Health Unnes Journal of Public Health PREPOTIF : Jurnal Kesehatan Masyarakat Media Publikasi Promosi Kesehatan Indonesia (MPPKI) Jurnal Impresi Indonesia Proceeding Mulawarman International Conference on Tropical Public Health Kesmas: Jurnal Kesehatan Masyarakat Nasional (National Public Health Journal) National Journal of Occupational Health and Safety
Sjahrul Meizar Nasri
Department Of Occupational Health And Safety, Faculty Of Public Health, Universitas Indonesia Building C, 1st Floor Faculty Of Public Health Universitas Indonesia, Depok, West Java 16424
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Indoor Air Factors Affecting the Growth of Microorganism in an Indonesian Gas Company’s Dormitory Sjahrul Meizar Nasri; Asduki D. Athari; Laksita Ri Hastiti; Fiori Amelia Putri
The Indonesian Journal of Occupational Safety and Health Vol. 11 No. 3 (2022): The Indonesian Journal of Occupational Safety and Health
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (527.86 KB) | DOI: 10.20473/ijosh.v11i3.2022.445-453

Abstract

Introduction: Mold may affect the Indoor Air Quality (IAQ) in workplace dormitories. This study aims to investigate indoor air factors that affect molds growth in a dormitory of an LNG Company in Indonesia. Several indoor air determinant factors, including relative humidity, general temperature, wet temperature, dry temperature, air velocity, illumination, particulate matter, and carbon dioxide concentration were assessed against the growth of microorganism colonies. Methods: This study was a cross-sectional study using a 2 (two)-stage Andersen sampler based on NIOSH 0800 Bioaerosol Sampling Method for Indoor Air Quality for viable bioaerosol sampling. Bioaerosol samples were collected from 50 indoor, corridor, and outdoor sampling points. The total colony count for bioaerosols (TCC) was then determined (CFU/m3). Ten indoor air quality parameters, i.e., relative humidity, general temperature, wet temperature, dry temperature, air velocity, illumination, particulate matter, and carbon dioxide concentration, were measured. Results: The average mold colony concentration in the dormitory rooms was higher (703.1 CFU/m3) than the maximum standard issued by the Ministry of Health of the Republic of Indonesia (< 700 CFU/m3) while the relative humidity was very high (84.4% RH on average), with a direct relation between the humidity and the mold colony concentration. A significant correlation was also identified between mold colony concentration, wet temperature, and CO2 concentration. Conclusion: Significant correlations between bioaerosols, relative humidity, wet temperature, and indoor CO2 concentration indicate insufficient ventilation and poor indoor air quality in the dormitory.
Analisis Implementasi Pengendalian Toksikan Formaldehyde Di Perusahaan Chemical Dyes Yuniarso, Aji Dwi; Nasri, Sjahrul Meizar
Jurnal Impresi Indonesia Vol. 4 No. 6 (2025): Jurnal Impresi Indonesia
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jii.v4i6.6617

Abstract

Pengendalian toksikan formaldehyde di industri chemical dyes sangat penting mengingat bahaya kesehatan yang ditimbulkan oleh bahan kimia ini, yang dikenal sebagai karsinogen, mutagen, dan reprotoxik. Formaldehyde digunakan dalam berbagai proses produksi pewarna kimia, namun paparan berlebihan terhadap bahan ini dapat menyebabkan gangguan kesehatan yang serius bagi pekerja. Perusahaan telah menerapkan berbagai kebijakan pengendalian untuk mengurangi paparan formaldehyde, termasuk penggunaan alat pelindung diri (APD), serta prosedur pengendalian yang ketat. Meskipun demikian, implementasi kebijakan ini menghadapi tantangan, seperti kurangnya pengawasan yang efektif, rendahnya tingkat kepatuhan pekerja terhadap penggunaan APD, serta keterbatasan fasilitas ventilasi yang memadai di beberapa area produksi. Hal ini menunjukkan bahwa meskipun kebijakan pengendalian telah ada, efektivitas pengendalian masih perlu diperkuat. Oleh karena itu, langkah-langkah perbaikan yang disarankan mencakup peningkatan pengawasan lapangan, pelatihan yang lebih mendalam bagi pekerja, serta peningkatan fasilitas ventilasi untuk menciptakan lingkungan kerja yang lebih aman dan mengurangi risiko paparan formaldehyde.
Utilization of Styrofoam as Soundproofing Material with Auditory Frequency Range Nasri, Sjahrul Meizar; Shofwati, Iting
Kesmas Vol. 13, No. 2
Publisher : UI Scholars Hub

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Abstract

The utilization of bricks made of styrofoam is expectedly able to be a soundproof for noise control and as a preventive action to reduce the steadily increasing prevalence of hearing loss. This study aimed to assess the use of sound absorption material in which styrofoam was utilized to reduce the noise exposure. In this study, fine aggregates (sand and styrofoam) were made with a mixture of cement with a composition of 1:4 and 1:6, also the addition of polystyrene waste with a percentage of 0%, 20%, 40%, 60%, and 80%. Determination of acoustical property of the mixture was done by testing the sound absorption coefficient (α) using Four Microphones Impedance Tube (ISO 140-3). The results showed that the highest value of absorption coefficient was at a frequency of 800 Hz with an additional 80% styrofoam for the composition of 1:4 at 0.4100 dB and at a frequency of 800 Hz with an additional 40% styrofoam for the composition of 1:6 at 0.5870 dB.
Analisis Faktor-Faktor Penyebab Kecelakaan Proses pada Industri Kimia: Tinjauan Berdasarkan Laporan Investigasi CSB : The title is Written in English with a Maximum of 15 Words, Avoid Using the Word Relationship Influence Mahendra Duta Apriono; Nasri, Sjahrul Meizar
Media Publikasi Promosi Kesehatan Indonesia (MPPKI) Vol. 7 No. 5 (2024): May 2024
Publisher : Fakultas Kesehatan Masyarakat, Universitas Muhammadiyah Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56338/mppki.v7i5.5124

Abstract

Latar belakang: Keselamatan dan kesehatan kerja merupakan aspek penting dalam industri kimia untuk mencegah kecelakaan proses yang dapat membahayakan nyawa manusia dan lingkungan sekitar Tujuan: Untuk mengidentifikasi faktor-faktor penyebab kecelakaan proses dalam industri kimia. Penelitian ini juga bertujuan untuk memahami akar masalah dan faktor yang menyebabkan insiden-insiden yang mengancam keselamatan di sektor industri kimia. Metode: Studi ini bertujuan untuk menganalisis penyebab kecelakaan proses pada industri kimia dengan menggunakan 44 Laporan Investigasi yang dikeluarkan oleh Chemical Safety Board (CSB) selama 11 tahun terakhir, mulai dari tahun 2012 hingga 2023. Rentang waktu kejadian yang diteliti adalah dari 12 Januari 2009 hingga 29 Januari 2020. Penyebab langsung kecelakaan dikategorikan menjadi 7 kategori, termasuk kegagalan peralatan, ketidakpatuhan terhadap prosedur, faktor alam, kekurangan dalam desain peralatan, kegagalan material, keberadaan sumber nyala, dan kurangnya identifikasi bahaya Hasil: Hasil analisis menunjukkan bahwa kegagalan peralatan merupakan penyebab kecelakaan terbanyak dengan presentase 35%, diikuti oleh ketidakpatuhan terhadap prosedur dengan presentase 25%, dan kegagalan material 14%. Penyebab lainnya seperti kekurangan dalam desain peralatan, faktor alam, keberadaan sumber nyala, dan kurangnya identifikasi bahaya masing-masing memiliki presentase yang lebih rendah Kesimpulan: Penting bagi industri untuk meningkatkan pemeliharaan dan pengawasan terhadap peralatan agar dapat mengurangi risiko kecelakaan. Selain itu, penegakan prosedur keselamatan yang ketat dan pemahaman terhadap factor-faktor penyebab kegagalan material juga menjadi kunci dalam mencegah insiden yang dapat membahayakan keselamatan kerja
Kajian Hubungan Antara Iklim Keselamatan Psikososial (Psychosocial Safety Climate) dengan Perundungan di Tempat Kerja (Workplace Bullying) di PT.WID Wahyuningtias, Ika; Erwandi, Dadan; Nasri, Sjahrul Meizar; Kadir, Abdul
National Journal of Occupational Health and Safety Vol. 2, No. 1
Publisher : UI Scholars Hub

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Abstract

This study aims to determine and examine the relationship and influence of the Psychosocial Safety Climate on the incidence of workplace bullying at PT WID (a power generation company) involving six power plant work areas throughout Indonesia. Method: This was a cross-sectional study involving 100 workers in the power plant industry who were above 17 years of age and with a work experience of at least six months. These workers participated in this study by filling out the Psychosocial Safety Climate (PSC 12) to measure the level of psychosocial safety climate and Negative Acts Questionnaire-Revised (NAQ-R) to determine the incidence of bullying in companies Results: The results of the analysis show that the Psychosocial Safety Climate has a significant effect on the incidence of bullying in the workplace in the company, with a negative relationship direction and moderate strength(p-sig=0,003; r=0,292; ß=-0,257). In addition, the results of multiple linear regressions show that Management Commitment has a significant effect (p-sig = 0.013) on the decrease in bullying levels in the workplace, compared to Management Priority, Organizational Participation, and Organizational Communication. Conclusion: This shows that if there is an increase in one level of Psychosocial Safety Climate, there will be a decrease in bullying actions by 0.257. Where management commitment is the variable that has the most dominant influence on reducing the level of bullying in the workplace.
Enhancing Noise-Induced Hearing Loss Detection through Air-BoneGap Assessment in Oil and Gas Workers Rina, Dewi Nata; Nasri, Sjahrul Meizar; Bashiruddin, Jenny
Mulawarman International Conference on Tropical Public Health Vol. 2 No. 2 (2025): The 4th MICTOPH
Publisher : Faculty of Public Health Mulawarman University, Indonesia

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Abstract

Background : Noise-Induced Hearing Loss (NIHL) remains a major occupational health problem in the oil and gas industry. Conventional surveillance methods, such as air conduction (AC) thresholds or Standard Threshold Shift, are limited in distinguishing NIHL from other types of hearing loss, leading to potential underestimation of prevalence. The Air-Bone Gap (ABG) parameter compares air and bone conduction thresholds, enabling the detection of sensorineural hearing loss that reflects inner ear damage specifically attributable to noise exposure. This makes ABG a more effective tool for early detection of NIHL and for supporting targeted hearing conservation programs Objective : This study evaluated the role of ABG in improving NIHL identification accuracy. Research Methods/ Implementation Methods : A cross-sectional design was applied using secondary data from audiometric examinations of 495 oil and gas workers purposively selected from Similar Exposure Groups (SEG) routinely exposed to occupational noise. NIHL was defined based on audiometric screening criteria, with AC thresholds classified as normal or impaired, and ABG categorized into conductive, sensorineural, and mixed. Chi-square tests assessed associations at p < 0.05. Results : Results showed 14 cases (2.8%) of NIHL, all among workers with impaired AC thresholds, indicating a significant association between AC impairment and NIHL (p < 0.05). Moreover, all NIHL cases clustered exclusively in the sensorineural group of ABG classification, confirming a strong association between ABG and NIHL (< 0.05). Conclusion/Lesson Learned : These findings highlight that ABG provides greater specificity in distinguishing NIHL from other disorders. Incorporating ABG into routine audiometric surveillance may enhance
Co-Authors Abdul Kadir Abdul Kadir Adi Drajat Noerwarsana Ahmad Faiz Asduki D. Athari Aulia Indar Ayuningtyas Aulia Jauhari Rakhman Dadan Erwandi Elfrida Ratnawati Fatma Lestari Fiori Amelia Putri Ika Agustina Wahyuningtias Ika Agustina Wahyuningtias Iting Shofwati Iting Shofwati Jenny Bashiruddin Kamto Kamto, Kamto Laksita Ri Hastiti Mahendra Duta Apriono Muhammad Aldin Kusuharto Muhyidin Muhyidin Neni Julyatri Sagala Puji Hastuti Rani Herespatiagni Rina, Dewi Nata Sabrina Valentina Wahyuningtias, Ika William William Yuniarso, Aji Dwi