Health risk assessment of chemical exposures: a case study in an oil platform

Today The oil and gas industry due to many industrial activities and lots of workers are the largest industries in the world. Coastal and offshore installations in terms of these two factors have a large share among oil facilities. Available Data in relation to the assessment of systemic exposure to chemical materials on offshore facilities are limited or related to the past few years. The purpose of this study was to assess the risks of exposure to chemicals on an oil platform.
In this study the method of the Risk assessment of chemical material of Singapore National In-stitute of Safety and Health is used .in this method Firstly job tasks and work process was determined by interviewing then identifying chemical agents in each of the job was done accurately. Then¡ hazard rate¡ exposure rate and health risk level caused by exposure to chemicals was determined.
Based on the result of the working group study and investigation of documentation processing was found that on the investigated oil platform¡ workers had the maximum exposure to H2S¡ BTEX and gasoline vapors. In the repairs unit¡ the highest level of risk caused by benzene and on the floor the genera-tors and oil wells unit caused by hydrogen sulfide.
By importing information relating to risks and results of the chemical materials measure-ments in the chemical risk assessment method could rank the various jobs and tasks in terms of exposure to chemicals. This result will be used to prioritize control measures and reduce the level of risk. According to the results of this study the establishment of control systems to reduce the risks of BTEX compounds and hydrogen sulfide is recommended.