Journal of Occupational and Environmental Health Vol. 3, No. 2, Summer 2017, Pages 105-111 Chemical Health Risk Assessment: A Case Study at a Concrete Product Workplace Hossein Feizollah F 1 , Babaei Pouya A 2 , Mosavianasl Z* 3 1. MSc, Department of Occupational Health Engineering, Faculty of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran 2. Instructor, Department of Occupational Health Engineering, School of Health, Ardabil University of Medical Sciences, Ardabil, Iran 3. * MSc student, Department of Occupational Health Engineering, Faculty of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran * Corresponding author. Tel: +984533512004, Fax: +984533512004, E-mail: z.mosavianasl@gmail.com Received: Oct 13, 2016 Accepted: Apr 10, 2017 ABSTRACT Background & objectives: People in different jobs are in contact with various chemicals. The purpose of this study was to assess the health risks of occupational exposures to the chemical substances present in a concrete workshop and to estimate their risk rating. Methods: This observational and cross-sectional study was carried out at 6 units in a concrete workshop. The semi-quantitative method was used to evaluate the health risks of chemicals. For this purpose, the occupational tasks and occupational processes were determined. Then, the degrees of risks and exposures of the employees were determined for each chemical. Finally, the risk levels were obtained for each material. Results: The results of the calculations show that the materials with the highest risk ratings are silica dust and iron fume produced in welding. Risk of exposures to chloride acid in electrical and lighting units and cement plastics in paintings were medium while the oil, grease, gelatin, vascasin, butyl rubber, diesel oil, industrial paints have lower risks. Conclusions: Effective engineering controls, air monitoring, staff training, respiratory protection programs, the provision of appropriate personal protective equipment, the establishment and implementation of safe working practices, the provision of emergency procedures and emergency procedures should be implemented and reassessed in order to reduce the risk rating. Keywords: Risk Assessment; Hazard Rate; Exposure Rate; Risk Rating; Chemical Agents Downloaded from oeh.arums.ac.ir at 17:58 IRST on Sunday September 30th 2018