hse key performance indicators in hse-ms establishment and sustainability: a case of south pars gas complex, iran

original article   introduction: establishment of hse management system (hse-ms) in industries is served as important managerial factor which achieves the requirements of health, safety, environment and sustainable development. today, hse_ms is known as a vital system in occupational fields due to corresponding considerations for economy, sustainable development, society and ecology. the important role of hse management system is completely undeniable in related standards for eliminations or reductions of hazards, anomalies, risks, accidents and adverse consequences. method: in this study, hse key indicators were analyzed using the fmea (failure mode and effect analysis) and the ahp (analytical hierarchy process) methodologies. on this basis, the hse performance assessment enhances the establishment of hse_ms. the case study refers to refinery a, the south pars gas field, iran being reviewed from year 2009 (the beginning of the implementation of the hse-ms) to year 2013. discussion: in health sector, the studied indicators of troif and tloif were reduced respectively from 2.4% and 1.7% in year 2010 to 0.3% and 0.3% in year 2013. this is a sign of complete accomplishment of standardization in year 2013. in the environmental sector, indicators of waste water, such as ph, tss, bod and cod achieved the environmental requirements. result: all indicators of air quality in year 2013 express impressive improvements compared to year 2010.