Scenario

01. Insufficient Analysis or Research
02. Insufficient Prior Research
03. Danger of Material
04. Poor Value Perception
05. Poor Safety Awareness
06. Inadequate Risk Recognition
07. Planning and Design
08. Poor Planning
09. Poor Process Design
10. Bad Event
11. Chemical Phenomenon
12. Concentration
13. Bad Event
14. Mechanical Event
15. Blockage
16. Secondary Damage
17. External Damage
18. Explosion
19. Bodily Harm
20. Death
21. 22 person died
22. Bodily Harm
23. Injury
24. 363 person injured
25. Damage to Society
26. Social Systems Failure
27. 142 buildings damaged

Explosion of ammonium nitrate caused due to superfluous concentration at an ammonium sulfate recovery process
Case Details

Knowledge Comment:
At newly development process, concentration of very small amount of dangerous impurities may be failed to notice.

Field Chemicals and Plants
Author ARAI, Mitsuru (Environmental Science Center, The University of Tokyo)
TAMURA, Masamitsu (Center for Risk Management and Safety Sciences, Yokohama National University)