Your SlideShare is downloading. ×
Risk analysis
Risk analysis
Risk analysis
Risk analysis
Risk analysis
Risk analysis
Risk analysis
Risk analysis
Risk analysis
Risk analysis
Risk analysis
Risk analysis
Upcoming SlideShare
Loading in...5

Thanks for flagging this SlideShare!

Oops! An error has occurred.

Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Risk analysis


Published on

Risk analysis

Risk analysis

Published in: Education
1 Comment
  • Be the first to like this

No Downloads
Total Views
On Slideshare
From Embeds
Number of Embeds
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

No notes for slide


  • 1. Risk Analysis
  • 2. What may happen?
  • 3. What Risk Analysis Can Do?
    Helps in
    Forecasting any unwanted situation
    Estimating damage potential of such situation
    Decision making to control such situation
    Evaluating effectiveness of control measures
  • 4. Procedure for Risk Analysis
  • 5. Procedure for Risk Analysis
    Now the Risk Ranking of particular activity / aspect can be evaluated with the help of 'Risk Ranking Chart', as illustrated below:
    Risk Ranking = (Severity of Consequence) × (Likelihood or Occurrence)
  • 6. Risk
    The probability of suffering a harm or loss. It is a combination of hazard and Probability
    Risk = Probability of occurrence of hazard X magnitude of hazard
  • 7. Types and Measurement of Risks
    Type of Risks
    • Background risk
    • 8. Incremental risk
    • 9. Total risk
    Measurement of Risk
    • Individual Risk
    • 10. Societal Risk
  • Individual Risk
    Risk posed by an individual
    It is generally measured in time domain for a particular type of hazard.
    Risk of Death due to fire in an industry = 1.0E-05 /yr
  • 11. Societal Risk
    Risk for a group of people
    It is measured in terms of number of people poses particular risk for a given period of time.
    Risk of Death to 10 workers due to fire in an industry = 1.0E-09 /yr/10 persons
  • 12. Acceptable Risk
    Risk that’s acceptable to regulatory agency and also to the public
    Level of Risk of Death Per Year
    (voluntarily acceptable by public)
    Smoking 30 cigarettes per day 1 in 200
    Man aged 35-44 1 in 600
    Motor Vehicle Accident 1 in 10 000
    Accident at home 1 in 12 000
    Rail accident 1 in 420 000
  • 13. Acceptable Risk Criteria
    UK Health and Safety Executive Criteria: FAR (Fatality Accident Rate)
    Number of fatality in life time working in an industry
    FAR = (Number of fatalities)*108/(Total hours worked by all employees during period covered)
    Acceptable FAR value 1.0
  • 14. Acceptable Risk Criteria
    US EPA
    For carcinogens/or other eventsa lifetime risk of 1 in million (1.0E-06) is defined as acceptable
    For non-carcinogens a hazard index less than 1.0 is defined acceptable