The Problem with Probability

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This entry is part 4 of 9 in the series Risk Assess­ment

Risk Factors When risk is ana­lyzed, at least in the indus­tri­al sec­tor, we usu­ally fol­low a pro­cess defined in ISO 12100. This approach defines two broad para­met­ers, sever­ity and prob­ab­il­ity, and then fur­ther sub­divides prob­ab­il­ity into sub-para­­met­ers that are help­ful for ana­lyz­ing machinery haz­ards. This post explores the dif­fi­culty with assess­ing the prob­ab­il­ity para­met­er. If you’re inter­ested […]

Risk Assessment

What did TEPCO know about Fukushima before 11-Mar-11?

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Fukushima Dai Ichi Nuclear plant before the meltdown
This entry is part 5 of 9 in the series Risk Assess­ment

I recently had a col­league point out an inter­est­ing paper pub­lished in the “Bul­let­in of the Atom­ic Sci­ent­ists” about the level of know­ledge that exis­ted between the start of con­struc­tion of the Fukushi­ma Daii­chi nuc­le­ar plant and the dev­ast­at­ing tsunami of 11-Mar-11. If you are inter­ested in know­ing more, I highly recom­mend this paper. The full text […]

Risk Assessment

How Risk Assessment Fails — Again. This time at DuPont.

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Casualty Evacuated by EMS
This entry is part 6 of 9 in the series Risk Assess­ment

A recent report released by the US Chem­ic­al Safety Board (CSB) looks at a series of acci­dents that occurred over a 33-hour peri­od on Janu­ary 22 and 23, 2010 at the DuPont Corporation’s Belle, West Vir­gin­ia, chem­ic­al man­u­fac­tur­ing plant. Copy­right secured by Digi­prove © 2011 – 2014Acknow­ledge­ments: US Chem­ic­al Safety Board for excerpts more…Some Rights ReservedOri­gin­al con­tent here is pub­lished under these license terms: X License Type:Non-com­mer­cial, Attri­bu­tion, […]