### HIRARC, Hazard Idewntification & Risk Analysis

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:

 Likelihood Consequence Very likely 4 Fatality 4 Likely 3 Major injury 3 Unlikely 2 Minor injury 2 Highly unlikely 1 Neglible 1

7.2.4 Risk = Likelyhood * Consequence

The higher the value the higher the consequences.

 Consequences Likelihood 4 3 2 1 4 16 12 8 4 3 12 9 6 3 2 8 6 4 2 1 4 3 2 1

7.2.5 Based on the quantitive risk assessment technique the risk weight and ranking of hazards is tabulated in table 2.

 Number Hazards Likelihood Consequence Risk weight Hazard prioritization 1 Struck by falling objects/materials 4 4 16 1 2 Falling from height 3 3 9 2 3 Protruding objects 2 3 6 3 4 Faulty tools and machines 2 2 4 4 .1 Mosquitoes 3 4 12 1 1 Noise 2 3 6 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:

 Hazards Risks weight Struck by falling objects/meterials 16 Falling from heights 9 Entanglement/ tripping of limbs 6 Slip/trip and fall 6 Mosquitoes 12 Noise 2

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.

 Head 30% Hands 10% Legs 10% Face 10% Body 15%

7.2.8 Risk Classification.

 Probability 1 2 3 4 Low Severity 1 1 - Low 2 - Low 3- Medium 4- Medium Medium 2 2- Low 4 - Medium 6 - Medium 8 - High Medium 3 3 - Medium 6 - Medium 9 - High 12 - High High 4 4 - Medium 8 - High 12 - High 16 - High High

 Risk Level Action Low (1-2) -No additional controls required. Consideration may be given to a more cost effective or improvement that imposes no additional burden. -Monitoring of effectiveness & adequacy of control methods. Medium (3-8) -Effort should be made to reduce the risk, but the ost of prevention should be carefully measured and limited. Risk reduction measures should be implemented within a define period. - Where the moderate risk is associated with extremely harmful consequences, further assessment may be necessary to established more precisely the like hood of harm as a basis for determining the need for improved control measures. High (9-16) -Work should not started until the risk has been reduced. Considerable resources may have to be allocated to reduce risk. Where the risk involves work in progress, urgent action should be taken. - It is not possible to reduce the risk even with unlimited resources, work has to remain prohibited.

7.2.9 Quantitive Risk Table

 Severity Likelihood Very likely Likely Unlikely Highly unlikely Fatality High High High Medium Major injuries High High Medium Medium Minor injuries High Medium Medium Low Negligible High Medium Low Low

7.2.10

 Severity Likelihood Year Monthly Weekly Daily 1 2 3 4 First Aid & Near Missed 1 1 2 3 4 Less than or 4 days MC 2 2 4 3 4 More than 4 days MC 3 3 6 9 12 Fatality & Permanent Disabilities 4 4 8 12 16

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.

4: Daily

3: Weekly

2: Monthly

1: Yearly

Qualitive Risk Ranking

Step 1

Assessing Probality (Rating for given assessment).

 Detail Rating Yearly Highly unlikely Probably never will 1 6 monthly Unlikely Rarely 2 Monthly Likely Occasionally 3 Daily Very likely Frequently 4

Step 2

Severity (Rating given for assessment).

 Injury/Accident Rating Fire Spillage/leakage First Aid Near missed 1 No fire & only smoke Spillage/leak which can be manually controlled. Minor Injury No Lost Time 2 Fire which trigger the fire Spillage/leak with Injury alarm cause Major Injury Permanent 3 Fire which cause using fire Spillage/ leak which disability & using of fire extinguisher caused Legislative lost Time Non Complience Injury Fatality 4 Fire which caused total Spillage/leak which evacuation caused Total Evacuation

Note:

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