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All Journal Chemistry Education Practice Gema Lingkungan Kesehatan
Rahman, Muhammad Auliya
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Education Environmental Science Health Professions Immunology & microbiology Public Health

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Hubungan Antara Kesiapan Belajar Dengan Prestasi Belajar Kimia Siswa Kelas XI SMAN 1 Wawo Rahman, Muhammad Auliya; Siahaan, Jeckson; Haris, Mukhtar
Chemistry Education Practice Vol. 7 No. 2 (2024): Edisi November
Publisher : FKIP University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/cep.v7i2.6186

Abstract

This research purpose is to analyze relation between learning readiness and chemistry learning achievement in class XI MIA SMAN 1 Wawo, academic year 2022/2023. This research is quantitative descriptive. The data collection method uses student learning readiness questionnaire and documentation to obtain data on student chemistry learning achievement. The data analysis method used is inferential statistical analysis. The data processing method with parametric statistics uses the Product Moment Correlation formula. Presentation of data in the form of a frequency distribution table and group explanations through the highest score, lowest score, mean, median, mode, and standard deviation. The result of this study indicates that there is a significant relation between student learning readiness and chemistry learning achievement in class XI MIA SMAN 1 Wawo in the 2022/2023 academic year. This is shown by rcount (0.878) > rtable (0.254) and tcount (13.971) > ttable (2.021) at an error level of 5% and the contribution of learning readiness of 77.08% to learning achievement.
Respiratory and Neurological Health Effects of Chromium and PM Exposure among Troso Woven Fabric Workers: A Cross Sectional Study in Jepara Darundiati, Yusniar Hanani; Joko, Tri; Setiani, Onny; Raharjo, Mursid; Nurjazuli, Nurjazuli; Rahman, Muhammad Auliya
Gema Lingkungan Kesehatan Vol. 23 No. 4 (2025): Gema Lingkungan Kesehatan
Publisher : Poltekkes Kemenkes Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36568/gelinkes.v23i4.371

Abstract

The Troso weaving industry in Jepara, Indonesia, is a traditional craft sector that relies on synthetic dyes and manual production, thereby exposing workers to chromium (Cr) and particulate matter (PM2.5 and PM10) with potential respiratory and neurological risks. This study aimed to analyze their association with respiratory and neurological disorders among workers. A cross-sectional design was applied involving 101 weaving workers from four production sites. Environmental sampling measured Cr concentrations in wastewater and PM2.5/PM10 in the ambient air, while worker characteristics and health complaints were assessed using the ECSC-87 and Q18 questionnaire. Data were analyzed using chi-square tests and odds ratios. Cr concentrations in wastewater ranged from <0.010 to 0.104 mg/L, remaining below the effluent quality standard of 1.0 mg/L but confirming the continuous use of chromium-based dyes discharged without treatment. Average PM2.5 and PM10 levels were 108.75 µg/m³ and 117.75 µg/m³, both exceeding national air quality standards (55 and 75 µg/m³). Bivariate analysis showed that respiratory disorders were significantly associated with exposure duration ≥40 hours/week (OR=7.333; p=0.0001) and working period >5 years (OR=20.935; p=0.0001), whereas dye type, dyeing frequency, and PPE use were not significant. Neurological disorders were significantly associated with exposure duration (p=0.001), working period (p=0.001), type of dye (p=0.0001), frequency of dyeing (p=0.018), and PPE use (p=0.0001). Environmental monitoring confirmed elevated PM levels and chromium-based dye use, while statistical analysis showed that prolonged exposure and long working periods associated with respiratory disorders, and neurological disorders were linked to multiple occupational factors.
Co-Authors Jeckson Siahaan Mukhtar Haris Mursid Raharjo Nurjazuli Nurjazuli Onny Setiani Tri Joko Yusniar Hanani Darundiati