2.1 Accident at work, 2.2 Routine bussines, 2.3 Non-routine business, 2.4 Risk analysis, 2.5 Consequence, 2.6 Competence,2.7 Diagnosis of health conditions,2.8 Element of personal security (EPP),2.9 Disease,2.10 Occupational disease,2.11 Personal protective equipment,2.12 Hygienic evaluation,2.13 Risk assessment, 2.14 Exposure , 2.15 Hazard Identification, 2.16 Incident,2.17 Workplace,2.18 Control measures,2.19 Biological monitoring,2.20 Consequence level,2.21 Deficiency level ,2.22 Exposure level,2.23 Likelihood level,2.24 Risk level,2.25 Concerned parties,2.26 Hazard,2.27 Staff exposed,2.28 Likelihood, 2.29 Process,2.30 Risk,2.31 Acceptable risk,2.32 Risk assessment, 2.33 Limit value permissible (VLP)LP