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All Journal Media Karya Kesehatan Bulletin of Chemical Reaction Engineering & Catalysis Jurnal Pengembangan Ketenagakerjaan Kesmas: Jurnal Kesehatan Masyarakat Nasional (National Public Health Journal)
Ahmad, Eka Fitriani
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Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Health Professions Medicine & Pharmacology Nursing Public Health

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The Implementation of Occupational Health and Safety Nasution, Muhammad Islam; Mufidah, Ida Umarul; Pongmasangka, Nico Linggi; Ahmad, Eka Fitriani; Rojak, Octovianus Bin; Aryadi, Valyaty Frisa
Media Karya Kesehatan Vol 6, No 2 (2023): Media Karya Kesehatan
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/mkk.v6i2.45415

Abstract

Batik is a traditional process of repeatedly applying wax and dye on fabric to produce intricate and colourful patterns. Occupational safety and health issues arise among workers due to improper positioning during the mencanting process or exposure to risk factors in the workplace. This community service aims to implement workplace climate measurement using the Wet Bulb Globe Temperature (WBGT) index, work fatigue using a reaction timer test, light intensity with a lux meter in the mencanting area, musculoskeletal pain using the Nordic Body Map (NBM) questionnaire, as well as promoting occupational safety and health materials to 8 participants whom are workers at Small and Medium-sized Enterprise (UKM) Sanggar Batik Cirebon. The measurement results showed the average (WBGT) workplace climate index was 28.13 °C; the average work fatigue was 531.48 milliseconds; the average range of light intensity was 45.20 Lux - 85.33 Lux; and the average NBM score was 47.13. During the delivery of the occupational safety and health promotion materials, the participants appeared enthusiastic and motivated.  Keywords:  Ergonomic, light intensity, musculoskeletal, work fatigue.
Personal Exposure of Traffic Policeman to Particulate Matter in Jakarta: Distribution of Size, Chemical Composition, and Work Time Ramdhan, Doni Hikmat; Ahmad, Eka Fitriani; Kurniasari, Fitri; Rizky, Zuly Prima; Atmajaya, Hardy; Santoso, Muhayatun
Kesmas Vol. 14, No. 2
Publisher : UI Scholars Hub

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Abstract

Particulate matter (PM) is an air pollutant that has an impact on public health, especially in an urban area. The objective of this study was to analyze the personal concentration of PM2.5 and its composition among police working in the roadside area in Jakarta. PM measurement has done to the policeman that controlled traffic on four near highway locations in Jakarta. Sioutas impactor, Leland Legacy personal pump, and quartz fiber filter were chosen to measure the fine particles. Each PM was measured for 8-hour period. PM concentration was analyzed by the gravimetric method while tracing element and black carbon in PM0.25 by energy dispersive X-ray fluorescence (EDXRF) and EEL Smoke Stain Reflectometer. As a result, near highway PM2.5 concentration in Jakarta during weekdays and weekends measurement are 92.18 ± 10.66 μg/m3, and 78.09 ± 11.61 μg/m3. S, K, Fe, Ca, Zn, and Pb are major elements found in all locations. The black carbon concentration in all location was 17 ± 5.7 μg/m3. A high concentration of fine particles, a traffic-related trace element in PM0.25, and black carbon are showed that traffic-related source is the major contributor to a high level of fine particulate matter at near highway locations in Jakarta. The weekday's concentration of PM2.5 and PM0.25 among Jakarta Policemen was higher than in the weekend concentration. A particle with size of less than 0.25 µm dominated the fine particles concentration. Further researcher is expected to see the difference in the effects of traffic-related particulate matter exposure between traffic policeman and police who work at office.
Hubungan antara Postur Kerja, Masa Kerja, dan Usia dengan Keluhan Muskuloskeletal pada Pekerja bagian Perawatan di PT X Juliastuti, Widya; Ahmad, Eka Fitriani; Octovianus Bin Rojak
Jurnal Pengembangan Ketenagakerjaan Vol. 2 No. 1 (2024): Maret: Jurnal Pengembangan Ketenagakerjaan
Publisher : POLITEKNIK KETENAGAKERJAAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59574/jpk.v2i1.105

Abstract

Keluhan muskuloskeletal adalah beragam gejala yang berkaitan dengan gangguan pada sistem muskuloskeletal, seperti nyeri, kekakuan, inflamasi, pembengkakan, serta gangguan pada fungsi atau gerakan tubuh. Keluhan ini dapat mencakup berbagai kondisi seperti nyeri punggung, nyeri pada sendi atau otot, kelemahan otot, serta keterbatasan dalam mobilitas dan aktivitas fisik. Penelitian ini bertujuan untuk mengetahui hubungan antara postur kerja, masa kerja, dan usia dengan keluhan muskuloskeletal pada pekerja bagian perawatan di PT X. Metode penelitian yang digunakan adalah survei cross-sectional dengan pengumpulan data melalui kuesioner yang diisi oleh 31 responden. Analisis data dilakukan menggunakan uji alternatif Fisher untuk mengidentifikasi korelasi antara variabel postur kerja, masa kerja, dan usia dengan keluhan muskuloskeletal. Hasil penelitian menunjukkan bahwa 25 responden (80,6%) mengalami keluhan ringan sedangkan 6 responden (19,4%) mengalami keluhan berat. Hasil uji statistik menunjukkan postur kerja tidak memiliki hubungan signifikan dengan keluhan muskuloskeletal (p-value = 0,654) sedangkan masa kerja (p-value = 0,004) dan usia (p-value = 0,002) masing-masing memiliki korelasi signifikan dengan keluhan muskuloskeletal. Berdasarkan temuan ini, perusahaan disarankan untuk memantau risiko ergonomi secara berkala terhadap seluruh pekerja bagian perawatan, mengadakan program senam sehat secara rutin seminggu sekali, menyelenggarakan pelatihan ergonomi di tempat kerja, menyesuaikan ulang jadwal kerja dan istirahat sesuai dengan kebutuhan pekerja, serta mengimplementasikan program peregangan tubuh selama jam kerja.
Soda-Anthraquinone-Catalyzed Delignification of Coconut Husk Waste Ahmad, Eka Fitriani; Lestari, Puji; Oginawati, Katharina; Yulizar, Yoki; Sianturi, Julinton; Munir, Muhammad Miftahul; Adawiah, Adawiah
Bulletin of Chemical Reaction Engineering & Catalysis 2026: BCREC Volume 21 Issue 1 Year 2026 (April 2026)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20537

Abstract

This study investigates the role of anthraquinone (AQ) in decomposing coconut husk waste, specifically collected from Banten, to produce pure α-cellulose pulp. The process used sodium hydroxide (NaOH) at 10%, 15%, and 20% concentrations, with 0.1 g of AQ added as a catalyst, and a waste-to-liquid ratio of 1:8 throughout. The goal is to accelerate lignin degradation while protecting cellulose in the material, thereby yielding higher-quality pulp. The Banten coconut husk analysis showed an α-cellulose content of 30.38%. Higher NaOH concentrations reduced pulp yield but increased lignin removal, indicated by lower kappa numbers. AQ addition enhanced lignin removal and preserved cellulose compared to the absence of AQ. The optimal outcome was achieved with 15% NaOH and 0.1 g AQ, balancing lignin removal and cellulose preservation. These findings indicate that anthraquinone can support sustainable pulp production from agricultural waste. Copyright © 2026 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Co-Authors adawiah adawiah, adawiah Aryadi, Valyaty Frisa Atmajaya, Hardy Doni Hikmat Ramdhan Juliastuti, Widya Katharina Oginawati Kurniasari, Fitri Miftahul Munir, Miftahul Mufidah, Ida Umarul Muhayatun Santoso Nasution, Muhammad Islam Nico Linggi Pongmasangka Octovianus Bin Rojak PUJI LESTARI Rizky, Zuly Prima Rojak, Octovianus Bin Sianturi, Julinton Yoki Yulizar