JURNAL KESEHATAN LINGKUNGAN: Jurnal dan Aplikasi Teknik Kesehatan Lingkungan

Evaluation of a Modified Fly Grill for Fly-Density Surveillance Practicum

Siti Noor Ain Afifah Puteri — 2026-07-31

Conventional Fly Grills are simple and useful tools for fly-density surveillance; however, their size, weight, and storage requirements may limit repeated use during field practicum. A foldable and rollable Fly Grill model was developed to improve portability while maintaining its core measurement function. This study aimed to evaluate student acceptance of the modified Fly Grill as a practical learning tool. A descriptive evaluative cross-sectional survey was conducted among fourth-semester students of the Department of Environmental Health, Poltekkes Kemenkes Banjarmasin, following direct use of six modified Fly Grill units during practicum. Ninety-five valid respondents completed a 33-item, four-point Likert-scale questionnaire covering ease of use, portability, comfort, and general perception. Data were analyzed descriptively using frequencies, means, and standard deviations. The modified Fly Grill received highly favorable ratings across all domains, with mean scores of 3.72±0.40 for ease of use, 3.68±0.42 for general perception, 3.65±0.45 for portability, and 3.64±0.45 for comfort. The highest item-level scores were observed for ease of understanding the instructions and relocating the device (both 3.77±0.45), followed by ease of setup (3.75±0.44). Lower ratings were found for device weight (3.61±0.49), handle/structural comfort and stability (both 3.62±0.51), and user safety (3.63±0.49), although all remained positive. The modified Fly Grill demonstrated high student acceptance and potential as a portable and reusable practicum tool. However, this study evaluated perceptions and acceptance only; technical performance, durability, and learning outcomes were not assessed. Further comparative studies using objective measures are recommended.

Development Of Mist Maker Technology For Acid Mine Drainage Treatment In The Coal Industry

Muhammad Isra Ahdyannor — 2026-07-31

Acid mine drainage (AMD) is a critical environmental issue associated with low pH and elevated concentrations of dissolved metals, particularly iron (Fe), which can threaten aquatic ecosystems and surrounding communities. This study evaluated the effectiveness of a mist maker combined with lime for improving pH and reducing Fe concentration in AMD. An experimental pre-test and post-test design was applied using three treatment systems: mist maker aeration, lime neutralization, and a combined mist maker–lime treatment. Each experiment used 5 L of AMD, a 30-minute contact time, and three replications. The measured parameters were pH and Fe concentration, while data were analyzed descriptively and inferentially using a paired t-test. The combined mist maker–lime treatment showed the highest performance. It increased pH by 2.32 ± 0.21, from 3.59 ± 0.21 to 5.91 ± 0.03, and reduced Fe concentration by 2.03 ± 0.61 mg/L, corresponding to a removal efficiency of 94.4%. These improvements were statistically significant (p < 0.05). Lime treatment alone significantly increased pH by 1.81 ± 0.04 (p < 0.05), but its Fe reduction of 0.64 ± 0.57 mg/L was not statistically significant (p > 0.05). In contrast, mist maker treatment alone produced no significant change in pH or Fe concentration. These findings indicate that integrating mist maker aeration with lime neutralization enhances AMD treatment through synergistic aeration, pH adjustment, oxidation, and metal precipitation mechanisms. Therefore, this combined approach offers a rapid, effective, and practical alternative for Fe removal and AMD neutralization under short contact conditions in small scale practical treatment applications.

Application of Hazard Identification, Risk Assessment, and Control (HIRAC) in Academic Office Workspaces

Yosef Barita Sar Manik — 2026-07-31

Occupational Health and Safety (OHS) is essential for creating a safe, healthy, and productive work environment, including academic offices. However, occupational safety and health (OSH) practices in higher education administrative workplaces remain limited, and workplace hazards are often underestimated. This study aimed to identify workplace hazards, assess occupational risks, and propose appropriate control measures in the faculty cubicle area at President University using the Hazard Identification, Risk Assessment, and Control (HIRAC) method. A descriptive observational design was applied following ISO 45001:2018. Data were collected through direct observation and documentation, and risk levels were determined using a likelihood–severity matrix. The assessment identified 21 hazard scenarios involving safety, physical, ergonomic, biological, and psychosocial hazards. Electrical hazards, particularly damaged outlets and excessive use of extension cords, presented the highest risk (risk value = 16) because of their potential to cause electric shock, short circuits, and fire. Other notable hazards included damaged chairs, cluttered workspaces, improper fire extinguisher placement, and inadequate ventilation. Control measures developed according to the hierarchy of controls reduced the average calculated risk value from 9.0 to 3.3, indicating improved workplace risk management. These findings demonstrate that HIRAC provides a practical and systematic approach for identifying workplace hazards, prioritizing risks, and supporting effective risk control in academic office environments. The study was limited to a single workspace and a relatively short observation period.

Evaluation of Sanitation Standard Operating Procedures (SSOP) Implementation in Ready-to-Eat Home Food Industries

Rahmawati Rahmawati — 2026-07-31

Home-based food industries play an important role in food supply but often face challenges in implementing food safety standards. This study aimed to evaluate the implementation of Sanitation Standard Operating Procedures (SSOP) in a ready-to-eat home-based food industry in Banjarbaru City. A descriptive mixed-methods approach was employed using direct observation, in-depth interviews, and questionnaires to assess compliance with eight SSOP aspects and identify factors affecting implementation. The results showed that the average SSOP implementation rate was only 44.3%, indicating substantial gaps in sanitation practices. The highest compliance was observed for cleanliness of food-contact surfaces (62.5%), followed by handwashing, hand sanitation, and toilet facilities (57.2%). In contrast, cross-contamination prevention showed the lowest compliance (28.6%), while employee health control and pest management each reached only 33.3%. Major deficiencies included the absence of routine bacteriological water monitoring, inadequate cross-contamination control procedures, improper chemical storage, lack of employee health monitoring, and insufficient pest control documentation. Limited knowledge, inadequate facilities, insufficient trained personnel, and weak monitoring were identified as important barriers to SSOP implementation. These findings indicate that sanitation practices have not yet been systematically integrated into food production operations. Strengthening training, sanitation infrastructure, routine monitoring, and documented corrective actions is therefore essential to improve SSOP compliance and food safety in home-based food industries.

Determination of Alkalinity and Chloride in Well Water Before and After Purification Using Titration Method

Irja Sepriyanyo Jenmau — 2026-07-31

This study aims to determine the levels of alkalinity and chloride in well water before and after the purification process in Kampung Jaifuri, Skanto District, Keerom Regency. Well water is the primary water source for the local community; therefore, its quality needs to be evaluated to ensure its suitability for daily use. The parameters analyzed in this study were alkalinity and chloride levels as important indicators of water chemical quality. The method used in this research was titration. Alkalinity was determined using acid-base titration with phenolphthalein and methyl orange indicators, while chloride levels were measured using argentometric titration (Mohr method). Water samples were collected before and after the purification process to compare their quality. The results showed that alkalinity decreased from 2.64 mg/L to 2.28 mg/L after purification. Similarly, chloride levels decreased from 7.81 mg/L to 6.39 mg/L. These results indicate that the purification process was effective in improving water quality by reducing the concentration of chemical substances in the well water. In conclusion, the water purification process is effective in reducing alkalinity and chloride levels, thereby improving the quality of well water in Kampung Jaifuri. It is recommended that the community apply water purification methods before using well water for daily needs.