Exploring Knowledge, Attitudes, Practices, Environmental Concerns, and Barriers to Biodegradable Packaging Among University Students at Two Public Universities in Bangladesh: A Cross‐Sectional Study

Background and Aims: Biodegradable packaging has gained increasing attention globally as an eco-friendly alternative to conventional plastics with the aim of reducing environmental pollution and promoting sustainability. This study aimed to examine university students' knowledge, attitudes, and practices (KAP) along with the barriers and environmental concerns regarding biodegradable packaging in southern Bangladesh. Methods: A cross-sectional survey was conducted between June and July 2025, involving 387 students through convenience sampling and self-reported interviews. Results: The findings showed moderate KAP toward biodegradable packaging (54.7%, 58.9%, and 57%, respectively). Knowledge was significantly higher among participants aged 21-23 and ≥ 24 years, hostel residents, and those whose mothers had completed higher secondary education. Attitudes were higher among females, students aged 21-23, and students in advanced study years. Practices were significantly higher among females, and students in the later stages of their studies. By contrast, students from rural areas demonstrated significantly lower attitudes and practices. Additionally, the lack of exposure to biodegradable packaging in university courses, absence of formal training on environmental conservation, non-participation in environmental volunteer work, and not following eco-friendly social media pages exhibited lower levels of KAP. Difficulties in finding biodegradable packages in the local market were the most commonly described barriers (14.1%) among the participants. Pollution of rivers, oceans, and natural areas by plastic packaging (11.9%) was reported as the most frightening environmental danger identified by the participants. Conclusion: The results highlight that focused education, training, and increased accessibility of biodegradable packaging are essential to enhance students' KAP and overcome barriers to sustainable adoption, particularly among specific demographic groups and in rural areas of Bangladesh.