Introduction: The application of M-learning or mobile application (app) as a tool to disseminate occupational safety and health (OSH) information among students and staff in the university, to replace the use of conventional noticeboard was assessed in this study. Materials and Methods: Study was conducted between February to March 2016 and involved 124 respondents from health sciences program in Universiti Putra Malaysia. OSH information was incorporated into a mobile-app using online software and respondents were requested to use the app for fourteen days. A self-administered questionnaire was used to assess the level of knowledge, attitude and practice of respondents before and after using the app. Results: The mobile app has significantly increased the knowledge score among respondents (z = -7.331, p<0.001). The mean (SD) of knowledge score has increased from 24.39 (5.84) to 30.40 (4.97). The attitude score also has significantly increased from 12.85 (2.04) to 14.02 (2.42) (z= -4.587, p<0.001). The mobile app was not significantly changed the practice (z= -0.688, p=0.491) and the perception among respondents (z= -0.337, p=0.736). Respondents stated that the app was user-friendly (49.4%, N=61), easy to access (N= 64, 51.6%), and have interesting contents (N= 63, 50.8%). They believed continuous used of the app may improve their knowledge (N= 64, 51.6%), and increase their awareness (N= 67, 54.0%) on safety and health. Conclusion: The M-learning (mobile app) has a potential to be used to promote the safety and health culture among students on the campus.

Introduction: Cadmium (Cd) in urine and inhaled dust of the municipal waste operators was assessed. Methods: Urine spot samples were collected and analysed for Cd and creatinine of 60 municipal waste operators between April to June 2013. Respirable dust was collected using personal air sampling pump GilAir-3 and GilAir-5 for 8 working hours. Cd in urine and dust were analysed using the Flame Atomic Absorption Spectrometer (Perkin Elmer A Analyst 800) while urinary creatinine was measured using Reflotron® Plus creatinine. Results: The mean and standard deviation (SD) of Cd in the respirable dust (0.59 ± 50.27 μg/m3) was within the permissible exposure limit (PEL). The level of Cd in urine (0.015 ± 0.0097 μg/g Cr) was lower than the safe limit of 5 μg/g. The creatinine level (173.59 ± 50.27 mg/dl) was within the normal range (20 to 350 mg/dl). The multiple regression model shows smoking and years of smoking were the significant predictors for the Cd in the urine (R² = 0.216 F(3,56) = 5.150, p < 0.05). Conclusion: Municipal waste operators were exposed to minimal Cd exposure while handling waste and the accumulation of this metal urine was correlated with smoking habit.