Industrial Hygiene Exposure Assessment: The Good, Bad, and

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AIHA Exposure Assessment Strategy � Basic Characterization � Gather Information � Workplace � Workforce � Agents
Example Basic Characterization Spreadsheet Department Material Hazard / Agent / OEL Department Number Equipment Employee Job Title Task Description Material ID Description Agent Chemical CAS# OEL Units Adhesives 105 Blender Filters Adhesive Operator Change filter media, bleed and flush pumps Using pneumatic pump to charge 700 liters of Chemical Cyclohexanone 110-82-7 100 ppm Adhesives 105 Blender Pumps Adhesive Operator cyclohexanone from drums into reactor Chemical Cyclohexanone 110-82-7 100 ppm Adhesives 105 Blender General Area Maintenance Employee Viscosensor rebuild welding Chemical Nickel 7440-02-0 1.5 mg/m^3 Adhesives 105 Blender General Area Maintenance Employee Paint area & parts clean up Charging latex super mix from storage tank (watching Chemical MEK 78-93-3 200 ppm Adhesives 105 Blender Tank Adhesive Operator level through open manhole) Chemical Cyclohexanone 110-82-7 200 ppm Adhesives 105 Blender Tank Adhesive Operator Package final product through filter system Chemical Cyclohexanone 110-82-7 200 ppm Adhesives 105 General Equipment Maintenance Employee Calibration & repair of viscosity meters Chemical Cyclohexanone 110-82-7 200 ppm Adhesives 105 Blender Tank Maintenance Employee Reactor equipment maintenance Chemical Cyclohexanone 110-82-7 200 ppm Charging 20 - 10 kg bags of TiOx into Reactor w/ local Titamium Adhesives 105 Blender Tank Adhesive Operator exhaust Chemical Dioxide 13463-67-7 10 mg/m^3 Adhesives 105 Blender Tank Adhesive Operator Collect a 200 ml QC samples (6) through handhole Chemical Cyclohexanone 110-82-7 200 ppm Adhesives 105 Blender Tank Adhesive Operator Monitoring process at control panel Chemical Cyclohexanone 110-82-7 200 ppm Adhesives 105 Blender Tank Adhesive Operator Monitoring process at control panel Noise Noise 85 dBA Adhesives 105 Blender Tank Adhesive Operator Monitoring process at control panel Noise Noise 85 dBA Adhesives 105 Blender Tank Adhesive Operator Monitoring process at control panel Noise Noise 85 dBA Chemical Noise Physical Other
Page 1 and 2: Industrial Hygiene Exposure Assessm
Page 3 and 4: Exposure Assessment � Do we do a
Page 5 and 6: Where we Started � 1977 NIOSH Doc
Page 7 and 8: 1977 NIOSH Guidance
Page 9 and 10: 1977 NIOSH Guidance � What is the
Page 11 and 12: Exposure Assessment The Good
Page 13: AIHA Exposure Assessment Strategy o
Page 17 and 18: AIHA Exposure Assessment Strategy
Page 19 and 20: Exposure Point Inventories Mark Bet
Page 21 and 22: The AIHA Model Exposure Control Rat
Page 25 and 26: Ranking Qualitative Exposure Determ
Page 27 and 28: Statistical Analysis of the Selecti
Page 29 and 30: Qualities that Effect Choice - Part
Page 36 and 37: West Michigan Industrial Hygiene So
Page 38 and 39: The Bad - Statistics � What do th
Page 40 and 41: Distributions with a Mean=1, Are th
Page 42 and 43: Example: Welding fume data - estima
Page 44 and 45: Example: Welding fume data - estima
Page 46 and 47: Sample 95 th Percentile Exposure
Page 48 and 49: 90 th , 95 th , and 99 th Percentil
Page 50 and 51: Alternative upper percentile formul
Page 52 and 53: Upper Confidence Limit - 95% Confid
Page 56 and 57: Statistical Analysis of Exposure Da
Page 58 and 59: Statistical Analysis of Exposure Da
Page 60 and 61: Exposure Assessments - The Better?
Page 62 and 63: The AIHA Model Exposure Control Rat
Page 64 and 65:
R.O.T. for Estimating the 95 th Per
Page 66 and 67:
Bayesian Decision Analysis - BDA
Page 68:
AIHA Exposure Assessment Strategy
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