Indian Journal of Forensic Medicine & Toxicology

Aditya ¹, I. Made Muliatna ², Abdul Rohim Tualeka ¹

Affiliations
1 Department of Occupational Health and Safety, Faculty of Public Health, Airlangga University, Surabaya, East Java, ID
2 Engineering Department, Faculty of Technic, Surabaya State University, Surabaya, East Java, ID

Abstract

PT Dok dan Perkapalan Surabaya Is one of the manufacturing industry sectors in which operational activities can cause accidents and work-related illnesses such as the activities of joining the ship’s hull parts, namely the welding process. The risk of welding work needs to be done risk management to determine the prevention of possible work accidents through Risk Assessment activities which are then communicated to all parties. The purpose of this study is to identify hazards, conduct risk assessments and study risk control on welding work. This research is a descriptive study with an observational approach. From the results of the risk assessment of the 3 stages with 7 job descriptions, the percentage of risk categories was obtained, namely high risk 43% and medium risk 57%, and there was no low risk category Control carried out as part of risk management went well but residual risk remained so need a strong commitment from human resources or management and awareness of the workers on the use of personal protective equipment in every work. Risk communication is carried out through coaching or training, conducting safety induction, safety talk, Safety campaigns such as the activity of installing banners, posters, conducting meetings of the Health and Safety Guidance Committee at the end of each month to discuss the problems that occur and make improvements.

Keywords

Risk Assessment, Risk Management, Risk Communication, Job Safety Analysis (JSA), Welding.

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Ahmad Muslih Bambang Sugiharta ¹, Aditya ², Abdul Rohim Tuale ³

Affiliations
1 Students, Department of Occupational Health and Safety, Public Health Faculty, Airlangga University, Surabaya, IN
2 Students, Department of Occupational Health and Safety, Public Health Faculty, Airlangga University, Surabaya, ID
3 Department of Occupational Health and Safety, Public Health Faculty, Airlangga University, Surabaya, ID

Abstract

Benzene is an organic chemical compound with the chemical formula C6H6. The benzene molecule is composed of six carbon atoms joined in a ring with one hydrogen atom attached to each. Acute benzene exposure can cause central nervous system depression. Longterm exposure can result in depression of the blood-forming system and may increase risks associated with anemia and leukemia. The purpose of this research is to identify benzene safe concentration in crude oil processing plant in east java area due to process fugitive emission. Sample is taken from 20 workers include work duration and weight of the worker also crude oil plant air quality monitoring is measured using direct-measure benzene detectors.

In the benzene measurement on the crude oil plant in east java area, 2 spot sample is taken with resulting data 0.96 mg/m3 or 0.30 ppm and 0.86 mg/m3 or 0.27 ppm, and according to final manual calculation for safe benzene concentration with the result 1.12 mg/m3 or 0.35 ppm, all of those number are still below safe concentration limit by refer to minister of man power No.13/MEN/X/2011 regulation and The Occupational Exposure Limits (OELs) which have been adopted globally as a company standard which is 0.5 ppm as an eight hour time-weighted average (TWA8) and 1.0 ppm as a Short Term Exposure Limit (STEL) (averaged over fifteen minutes). But according to Minimum Risk Level (MRL) ATSDR 2007, those value already above threshold which is 0,009 ppm daily exposure for acute effect and 0,003 ppm daily exposure for chronic effect, Recommendation to control and reduce fugitive emission which resulting in number of benzene is by reviewing engineering design for equipment causing fugitive emission, and since this company regulation for respirator usage in benzene case are 0.5-5.0 ppm must use Half-face mask with organic vapor cartridge, 5.0-25.0 ppm use Full-face mask with organic vapor cartridge, and Greater than 25 ppm use Self-Contained Breathing Air (SCBA) then need to re asses all area which has an obligation to wear personal protective equipment (Half-full/full mask with organic vapor cartridge or Self contain breathing apparatus) by not only based on benzene level but also considering the exposure duration.

Keywords

Benzena, Safe Concentration, Crude Oil Plant, Fugitive Emission, Engineering Design.

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