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《Chinese Journal of Public Health Engineering》 2016-01
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Application of HAZOP in prevention and control for occupational hazards in a chemicals port

LI Rong-zong;LIU Ming;TAN Qiang;YAN Hui-lan;SU Shi-biao;Guangdong Province Hospital for Occupational Diseases Prevention and Treatment;Guangdong Provincial Key Laboratory of Occupational Disease Prevention and Treatment;  
Objective To prevent and control the main occupational hazards in the chemicals port by hazard and operability analysis( HAZOP). Methods Occupational hazards of handling operation in the chemicals port were analyzed based on occupational hygiene investigation,occupational health inspection,classification of occupational hazards at workplaces and HAZOP technology. Rectification measures and verification were carried out to occupational hazards at workplaces which exceeded the permissible concentration-short term exposure limit( PC-STEL). Results From 2009 to 2010,the major cargo of this port were mixed benzol,methanol and phenylethylene. The main occupational hazards of handling operation were benzene,methylbenzene,dimethylbenzene,methanol and phenylethylene. According to GBZ / T 229. 2-2010 Classification of Occupational Hazards at Workplaces Part 2: Occupational Exposure to Chemicals,benzene concentration-short term exposure( CSTEL) of mixed benzol ship-loading operation was up to 112 mg/m~3,and it belonged to severe harm operation. Methanol concentration-short term exposure( CSTEL) of ship-discharging operation was up to 73. 6 mg/m~3,and it belonged to medium harm operation. From 2011 to 2014,occupational health inspection results of benzene and methanol conformed to PC-STEL after improving operation standard,personal protective equipment and leak prevention. Conclusion HAZOP technology can be used to occupational hazards prevention and control in chemicals port,and it has contributed to reduce the chemical hazards exposure level of stevedores.
【Fund】: 广东省职业病防治重点实验室(2012A061400007);; 广东省医学科研基金项目(B2014015);; 广东省科技计划项目(2011B031900005)
【CateGory Index】: R135
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