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All Journal JURNAL KESEHATAN LINGKUNGAN (Journal of Environmental Health)
Suhaimi, Nur Faseeha
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Public Health

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Association Between Indoor Air Quality and Sick Building Syndrome Among Workers in Food Outlets in Selangor, Malaysia Ismahani Isman, Nur Izzah; Jalaludin, Juliana; Suhaimi, Nur Faseeha; Fahimah Hashim; Abdul Rohim Tualeka
JURNAL KESEHATAN LINGKUNGAN Vol. 16 No. 4 (2024): JURNAL KESEHATAN LINGKUNGAN
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jkl.v16i4.2024.331-341

Abstract

Introduction: Indoor air pollution, causing health issues like Sick Building Syndrome (SBS), is the third largest global contributor to disability-adjusted life years, emphasizing the urgent need for improved indoor air quality. This study aimed to determine the association between Indoor Air Quality (IAQ) and SBS among workers at food outlets in Selangor, Malaysia. Methods: A cross-sectional study was carried out among 107 workers in mall, new and old food outlet. A set of standardized and validated version questionnaires of the Industry Code of Practice on Indoor Air Quality (ICOP IAQ) 2010 was distributed to obtain respondents’ sociodemographic information, symptoms present at the workplace, and psychosocial information. Results and Discussion: The study found significant differences in temperature (p = 0.004), air velocity (p = 0.037), ultrafine particles (p = 0.005), and carbon dioxide (CO2) concentrations (p = 0.006) in malls, new and old food outlets. Workers in old food outlets had the highest prevalence of SBS (66.7%), compared to those in new outlets (60.5%) and mall outlets (64.7%). Environmental characteristics, such as increased dust and particulate matter during renovation (OR = 6.17, 95% CI = 1.34-28.34), repair (OR = 2.43, 95% CI = 1.03-5.76), along with temperature variations (OR = 7.21, 95% CI = 2.52-20.66) significantly influencing SBS. Conclusion: SBS prevalence in food outlets is not significantly linked to IAQ parameters, but exposure to UFP and PM2.5 may contribute to its development. However, it is significantly associated with workplace renovations and repairs for interior design, as well as varying temperatures.
Indoor Air Quality in Laboratories and Its Relationship with Psychological Performance Among University Students in Malaysia Nazman, Muhammad; Mohd Hatta, Puteri Balqis; Suhaimi, Nur Faseeha
JURNAL KESEHATAN LINGKUNGAN Vol. 16 No. 4 (2024): JURNAL KESEHATAN LINGKUNGAN
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jkl.v16i4.2024.289-301

Abstract

Introduction: Poor indoor air quality (IAQ) in work environments can reduce productivity and decrease overall performance. This study examines IAQ in university laboratories and its relationship with psychological performance among students in Malaysia. Methods: This cross-sectional study was conducted from October to November 2023 in six laboratories at a Malaysian university, categorised into chemical and non-chemical. A total of 117 students aged 18 to 40 participated. IAQ was measured in real-time for 8 hours during weekdays using instruments for particulate matter (PM2.5, PM10), carbon monoxide (CO), total volatile organic compounds (TVOC), airborne microorganisms, carbon dioxide (CO2), temperature in °C, relative humidity (RH), and air movement. Psychological performance was assessed using the General Health Questionnaire (GHQ-12) and Post Occupancy Evaluation (POE). Data analysis was performed using Kruskal-Wallis, One-Way ANOVA, and Chi-Square tests. Results and Discussion: Significant differences in IAQ parameters were observed for PM2.5 (p=0.007), PM10 (p=0.020), CO2 (p=0.024) and RH (p=0.043). Psychological distress affected 41.9% of students based on the predefined threshold. High CO levels (≥0.67 ppm) and elevated temperatures (≥23.28°C) were significantly associated with increased psychological distress (p=0.011). Students exposed to these conditions were 1.3 times more likely to experience distress (OR=1.3). Conclusion: Specific IAQ parameters, particularly CO and temperature, critically impact students’ psychological well-being. Improving IAQ by reducing CO levels and maintaining optimal temperatures may enhance mental health and performance. Improving IAQ by reducing CO levels and maintaining optimal temperatures may enhance mental health and performance. However, external factors such as personal stressors could not be entirely controlled.
Co-Authors Abdul Rohim Tualeka Fahimah Hashim Ismahani Isman, Nur Izzah Jalaludin, Juliana Mohd Hatta, Puteri Balqis Nazman, Muhammad