1. Terminologies on On-site and Off-site Disasters Management
Dr. Asit K Patra
Disaster Management Institute
Bhopal

2. Terminology
1. Hazard: A chemical or physical condition that has the potential for causing damage to people, property and the environment.
Example: Chlorine storage in Water treatment Plant
LPG storage in Bottling plant
Pressurised pipeline carrying Natural Gas
2. Risk: A measure of human injury/economic loss in terms of both the incident likelihood and the magnitude of loss or injury
Relation between Hazard and Risk

3. Terminology 3. Risk Analysis
A Quantitative or qualitative estimate of risk.
4. Risk Assessment
Process of utilising Risk Analysis results with respect to a reference.
5. Disaster/Emergency
Serious disruption of life, injury/death
Affected large number of people and area
Mobilisation of resources in case of those necessary during normal operation.

4. Terminology 6. On-site and Off-site
On-site: Consequences are confined within the plant premises
Off-site: Consequences crosses the plant boundary.
On-site Planning: As per Schedule 11 of MS&IHC Rules
Off-site Planning: As per Schedule 12 of MS&IHC Rules

5. Accident Outcomes
(i) Fire: Pool, Jet, Flash, Fireball (ii) Explosion : BLEVE, VCE, Dust Explosion (iii) Release of Toxic gas/vapour

6. Parameters to study Consequences of Accidental Release Scenarios
(A) Fire : Thermal Radiation (Various damage levels) (B) Explosion : Overpressure (Various damage levels) (C) Toxic Release : Concentration (Various damage levels)

7. BLEVE

8. AN INDUSTRY AFTER VCE

9. POOL-FIRE

10. JET- FIRE

11. Relevant Acts and Rules and Recent Developments
Factories Act, 1948 as amended in 1987
MS&IHC Rules, 1989 as amended in 2000
The PLI Act, 1991 and amended rules 1993
Chemical Accidents (Emergency Preparedness, Planning and Response) Rules, 1996
Disaster Management Act, 2005
EIA Notifications, 2006
NDMA Guidelines on Chemical (Industrial) Disaster Management 2007
NAP-CIDM 2010

12. For Further Information, Please contact: asitkpatro@gmail.com
Thanks