Abstract

Noise pollution is increasingly recognised as a critical environmental challenge within academic institutions, particularly in developing regions where teaching and research activities demand concentration and minimal disturbance. Elevated indoor noise levels can impair student learning outcomes, reduce staff productivity, and contribute to adverse health effects. This study systematically assessed indoor noise levels and associated health effects across offices, laboratories, and lecture theatres within a Faculty of Life Sciences. Measurements were conducted using a digital sound level meter (Smart Sensor Model AS834) in 10 offices, 1 laboratory, and 2 lecture rooms per department, complemented by structured questionnaires administered to academic staff, non-academic staff, and students to capture perceived noise sources, ratings, and Regulation Enforcement Agency (NESREA) permissible limits of 45 dB (day) and 35 dB (night). Results revealed that most recorded values exceeded regulatory thresholds, with the lowest levels measured at 53 dBA in a lecture room, 48.46 dBA in a laboratory, and 43 dBA in an office. Reported health effects included headache (32%), dizziness (18%), fatigue, anxiety, and depression, underscoring the significant burden of noise exposure. This study highlights the dual importance of objective measurements and subjective perceptions in understanding campus noise pollution. Findings emphasize the urgent need for institutional interventions, including awareness campaigns, replacement of noisy equipment, enforcement of noise control policies, and visible reminders to maintain quiet environments. By integrating empirical data with user experiences, this research provides evidence-based recommendations for mitigating indoor noise pollution in academic settings, safeguarding both health and productivity.

Keywords: Noise pollution, Indoor environmental quality, University environment, Sound level measurement, Environmental health