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Risk Analysis The Fundamentals and Applications K. Subramaniam, Lecturer (Envt.Health) & Safety Faculty of Health Science, UiTM Jpuncak Alam.

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Presentation on theme: "Risk Analysis The Fundamentals and Applications K. Subramaniam, Lecturer (Envt.Health) & Safety Faculty of Health Science, UiTM Jpuncak Alam."— Presentation transcript:

1 Risk Analysis The Fundamentals and Applications K. Subramaniam, Lecturer (Envt.Health) & Safety Faculty of Health Science, UiTM Jpuncak Alam.

2 Risk : What is it? The probability of an adverse event and the magnitude of the consequences…


4 Risk vs Safety Nutritious -vs- tasty #1 rated car -vs- a good car A contract -vs- agreement The weather -vs- a bad day Consider: Risk is measurable, objective, and based on fixed criteria


6 Elements of risk Probability (or likelihood, chance) Consequences (or impact) Uncertainty Ability to manage There must be a potential hazard for risk to exist

7 Insurance Coverage for Risks Company

8 Risk Criteria Choice of action Voluntary or involuntary Chance for loss Probability or frequency Magnitude of loss Character, extent, time Ability to manage Resources, timing

9 So, What is Risk Analysis? A systematic way of gathering, evaluating, and recording information leading to recommendations for a position or action in response to an identified hazard

10 Why do Risk Analysis? Before you can manage something you must be able to measure it

11 Risk Analysis should: Identify hazards Characterize risks Recognize uncertainty Summarize conclusions Recommend options Document the basis for decisions

12 Components of Risk Analysis [Initiation] Hazard Identification Risk Assessment Probability, consequences, uncertainty Risk Management Efficacy, feasibility, impacts [Risk communication]

13 The Hazard Question What am I afraid will happen?? OR What is the adverse event??

14 Risk Assessment Questions What information is available? What is the quantity and quality of information? What is the probability? What is the magnitude of the consequences (if I do nothing)? Should something be done?

15 Exposure Assessment

16 Risk Management Questions What can be done to eliminate or reduce the hazard? How effective are the options? How feasible are the options? What impacts do the options have? What is the level and type of uncertainty? What is the best option?

17 Risk Matrix

18 Variability and Uncertainty Variability is not reduced with more or better information Uncertainty may be: Modeling or measurement errors Gaps in information Out-of-date information Incorrect assumptions

19 Risk Communication Open, multiple exchanges of information and opinions that lead to better understanding and decisions: Consulting Informing Explaining or justifying


21 Transparency Document information sources Identify processes/methods Provide rationale for conclusions and decisions Describe uncertainty and identify data gaps or areas for additional research

22 Mitigation requires assessment Risk requires mitigation Initiation Identify hazard(s) Estimate the likelihood of occurrence Estimate the magnitude of the consequences Develop conclusions and describe uncertainty Develop recommendations and describe uncertainty Evaluate mitigation options for: -Efficacy -Feasibility -Impacts Identify mitigation options Decisionmaking Describe the concern which has the need. Understand the background and expectations. Evaluate recommendations against current environment and values to select an option. Risk Assessment Risk Management


24 Benefits of Risk Analysis a) Justify and defend decisions b) Evaluate decisions of others c) Prioritize resources d) View risk objectively and realistically e) Identify research and information needs f) Identify technical points of difference


26 Risk Screening

27 The Stakeholders and Important Linkages Policy makers Regulators Researchers Civil society

28 … And the Precautionary Approach? Rio Declaration (1992) Principle 15 In order to protect the environment, the precautionary approach shall be widely applied by States... lack of full scientific certainty shall not be used as a reason for postponing cost- effective measures to prevent environmental degradation.

29 Art Sufficient scientific evidence Is the absence of evidence of a hazard evidence of absence of a hazard? A key component of risk analysis is identifying uncertainty … A key component of decision-making is considering the uncertainty.

30 The Role of Precaution In the judgment of the acceptable level of risk - taking into account the scientific evidence and uncertainty In the judgment of strength of measures - taking into account the scientific evidence and uncertainty

31 Some sources of information….

32 More, faster, cheaper… The Internet

33 Integrated Risk Assessment

34 References D.O.E. (2004). EIA Guidelines for Risk Assessment. DOE, Griffin, R.L. (2007). Pest Risk Analysis. International Plant Protection Convention, Food and Agriculture Organization of the UN.

35 Thank you… Please ask if you are in doubt…

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