Inspires students to aim high and excel.
Always approachable and supportive.
A true mentor who cares about success.
Always positive and enthusiastic in class.
Josfirin Uding Anak Rangga serves as an Associate Lecturer in Health, Safety, and Environment in the Department of Health Sciences, Faculty of Humanities and Health Sciences, at Curtin University Malaysia. His passion for environmental issues stems from growing up in a longhouse immersed in nature, where he witnessed the impacts of large-scale agricultural activities and, later, urbanisation-induced challenges such as air pollution, urban heat, noise pollution, and their associated health effects including chronic respiratory conditions, cardiovascular diseases, vector-borne diseases, stress, anxiety, and mental health disorders. Rangga's career emphasises the nexus between environmental sustainability and human health, with a focus on occupational hazards, worker health, and community environmental awareness.
He earned a Master's degree in Environmental and Occupational Health from Universiti Putra Malaysia and is pursuing a PhD in Environmental Health at Universiti Malaysia Sarawak. Previously, he was a Lecturer in the Faculty of Social Sciences and Humanities at Universiti Malaysia Sarawak. His research interests encompass environmental health, occupational health and safety, urban pollution, waste management, landfill leachate, GHG emissions, recycling, and inhalation exposure to pollutants like PM2.5, black carbon, traffic-related air pollution, noise, and urban heat. Currently, he leads the project 'Exposure to traffic-related air pollution, noise, and urban heat in a selected urban city in Malaysia' to support urban planning, policy interventions, and sustainable lifestyles. Rangga has published extensively, with key works including 'Fire Safety Awareness and Practices in a Longhouse: A Study in Sarawak, Malaysia' (2025), 'Impact of particulate matter exposure on forced vital capacity and respiratory symptoms in landfill worker' (2025), 'Estimating Heavy Metal Concentrations in Landfill Leachate and the Impact of Waste Segregation in Malaysia' (2025), 'Air pollution: the process of PM2.5 ingestion into the body' (2024), 'Unveiling Youth's Perceptions and Behaviors Towards Plastic Usage and Management Amidst the COVID-19 Pandemic: A Knowledge, Attitudes, and Practices (KAP) Study' (2023), 'Contribution of waste segregation to GHG emissions, land usage, and health risk of NMVOC exposure: a study in Malaysia' (2022), and 'Environmental Impact, Health Risk, and Management Cost of Landfilling Practice: A Case Study in Klang, Selangor' (2020). His scholarship has accumulated over 80 citations. In addition to teaching courses like Introduction to Microbiology and Biohazards and Employment and Environment Law, he participates in community initiatives including fire safety awareness programs, student visits to water treatment plants, and healthy schools promotions.
