HAZARD IDENTIFICATION (HIRAC)
7.1 Hazard Identification
The following approaches were used in identifying hazards at work site.
7.1.1 Analyzing the accident investigation records from the previous year. All the accident are tabulated accordingly to the hazards during the period.
7.1.2 Analyzing and studying report on near misses and dangerous occurrences.
7.1.3 Conducting a work site walk through and through survey and visual inspection to observed and note various possible hazards. This include observation during site audit.
7.1.4 Interviewing workers on report of near missed and dangerous occurrences.
7.2 Technique Used To Assess And Evaluate The Risk.
7.2.1 The numbers of accident attributed by various hazards are indicate in table 1. The past incidence over the 1 year and 5 months indicated the likelihood of accident to happen.
7.2.2 In the same table, the severity of injury sustained is indicated as a consequence of accident attributed by hazard.
7.2.3 To assess the risk. Quantitive risk assessment technique was used. The following values were assigned for the risk table:
7.2.4 Risk = Likelyhood * Consequence
The higher the value the higher the consequences.
7.2.5 Based on the quantitive risk assessment technique the risk weight and ranking of hazards is tabulated in table 2.
Table 2: Risk weight and Ranking of Hazards.
.2.6 Hazard Prioritizi
On evaluation of quantities risk assessment, the risks of hazards in decending order are as following:
As tabulated in Table 2 the values of likehood and consequence are assigned based on the frequency of-accident attributed by the hazard and severity of the injuries respectively.
For calculation of risk weight, the assign value for likelihood and consequence are multiplied. The higher the value the higher the risk.
7.2.7 Critical hazards and effect on the safety & health of workers.
The most critical hazards that had been identified from the risk assessment is workers struck by falling objects/materials. The incidence of falling objects/materials is the higher and likewise, he risk are also the highest. The following areas were inflicted with injuries, with consequence ranging from serious to neglible injuries.
7.2.8 Risk Classification.
7.2.9 Quantitive Risk Table
Semi — Quantitive Risk Assessment.
1. Determine severity consequences i.e. :
- 4: Fatality & Permanent Disability - 3: More than 4 days MC
- 2: Less than 4 days MC
1: First Aid and near missed accident. (Reference NADOOPOD 2004)
2. Determine Likelihood of Occurrence of Hazards.
(Reference NADOOPOD 200
Qualitive Risk Ranking
Assessing Probality (Rating for given assessment).
Severity (Rating given for assessment).
1. Catagories of hazards: Mechanical, Electrical, Biological, Chemical, Ergonomics, Psycho-social, ect.
2. Other likelyhood factors to consider: • Number of personnel exposed
• Frequency and duration of exposure to the hazards • Quantity or concentration of materials
• Failure of service
• Failure of plant and machinery components • Exposure to the risk elements