Compressed Gas Cylinders Case Histories

Transcription

1 Compressed Gas Cylinders Case Histories Dennis A. Terpin, Ph.D, O.H.S.T, Senior Industrial Hygienist / Emergency Manager FEMA/DHS Certified Master Level instructor University of Illinois at Chicago - Ua446@aol.com 1

2 The importance of preplanning Preplanning is a method of: developing training acting, doing, proceeding, making, A safe plan of action in advance to ensure that the list of critical processes, functions, and resources is comprehensive and prioritized appropriately. 2

3 The case of the Ph.D Candidate 3

4 University of Illinois at Chicago Department: Physics Time: Location: Suspects: 4am East Campus Physics Lab Physics department, Lab PI,EHSO, UIC PD, Linde Gas and Radio Shack 4

5 Suspect 1 Liquid Nitrogen The safety hazards of liquid nitrogen: Extremely cold temperature (-195oC) Boiling point 320 F ( 196 C). Expansion rate 1 to 694 at 20 C (68 F) Specific gravity at 20 C (68 F) Odorless, Tasteless, Colorless. Depletes the % of oxygen 5

6 The call from UIC Police 8am Report of a leaking nitrogen cylinder on the second floor of the 619 building. 6

7 The response Who What When Where Why 7

8 Exceptions What are you excepting to see when you arrive on the scene! 8

9 SAFETY (AKA) YOU ARRIVE ON THE SCENE 9

10 You expect this 10

11 But you see this! 11

12 Have your expectations changed? 12

13 YOUR FIRST ON THE SCENE 13

14 THAT MAKES YOU THE INCIDENT COMMANDER 14

15 WHAT ARE YOUR OPTIONS? 15

16 SIZING UP THE EMERGENCY SCENE 16

17 Hazard and Risk Analysis 17

18 DECIDE Process Detect hazardous materials presence. Estimate likely harm without intervention Choose response objectives Identify action options Do the best option Evaluate progress 18

19 The First E in DECIDE - Estimate Likely Harm - Events Analysis Predicting what will likely happen in an emergency Describing the likely outcome based on that assessment You must identify all components of the emergency, the effects of each component (harm) and identify all possible outcomes. 19

20 Hazardous Material Behavior Model Four factors that will affect the behavior of hazardous material in an emergency are. Inherent properties and quantity of the hazardous material Built-in characteristics of the container Natural laws of physics and chemistry and Environmental conditions 20

21 Levels of HAZWOPER/Training First Responder Awareness no specific hours First Receivers (Medical) (Operations) 8 hours initial, 8 hours annual refresher First Responder Operations 8 hours initial, 8 hours annual refresher Hazardous Materials Technician 8 hour operations + at least 16 hours additional, 8 hours annual refresher Hazardous Materials Specialist No specific hours, annual refresher Incident Command 8 hour operations + at least 16 hours additional, 8 hours annual refresher 21

22 Emergency situations that fall under Hazwoper High concentrations of toxic substances Situation that is life or injury threatening Imminent Danger to Life & Health (IDLH) Situation that presents an Oxygen deficient and/or enriched atmosphere Conditions that poses a fire or explosion Situation that required an evacuation of the area A situation that requires immediate attention because of the danger posed to employees in the area. 8/23/

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24 DEFENSE VS OFFENSIVE 24

25 INTERNAL VS EXTERNAL RESPONSE 25

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29 WHAT NEXT? 29

30 The feed tank 30

31 Shut off values 31

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34 RESPONSE AND MITIGATION? 34

35 CASE TWO 35

36 The Phish, the Balloons and Nitrous Oxide 36

37 The three day UIC concert Phish is an American rock band that was founded at the University of Vermont in Known for musical improvisation, extended jams, blending of genres, and a dedicated fan base. 37

38 Preplanning - How would you get involved? Who What When Where Why 38

39 Concert night 1 12 cylinders Planners can prepare: Know possible risks that event poses Know audience event will attract Ensure public safety personnel are trained and equipped with PPE Ensure public safety teams understand how to mitigate incidents 39

40 Concert night 2 25 cylinders 40

41 Concert night 3 9 cylinders 41

42 Crime Scene 42

43 Concert Total 45 cylinders 43

44 Who owns them? Who What When Where Why 44

45 CASE THREE 45

46 The Case of the leftovers 46

47 Who owns them? Who What When Where Why 47

48 Vacant Laboratories 48

49 Vacant Laboratories 49