Exposure Models for the Prior Distribution in Bayesian Decision Analysis for Occupational Hygiene Decision Making

This study introduces two semi-quantitative methods, Structured Subjective Assessment (SSA) and Control of Substances Hazardous to Health (COSHH) Essentials, in conjunction with two-dimensional Monte Carlo simulations for determining prior probabilities. Prior distribution using expert judgment was included for comparison. Practical applications of the proposed methods were demonstrated using personal exposure measurements of isoamyl acetate in an electronics manufacturing facility and of isopropanol in a printing shop. Applicability of these methods in real workplaces was discussed based on the advantages and disadvantages of each method. Although these methods could not be completely independent of expert judgments, this study demonstrated a methodological improvement in the estimation of the prior distribution for the Bayesian decision analysis tool. The proposed methods provide a logical basis for the decision process by considering determinants of worker exposure. [Supplementary materials are available for this article. Go to the publisher's online edition of Journal of Occupational and Environmental Hygiene for the following free supplementary resource: Coding of the MC Simulation (SSA Method)]

[1]  Sudipto Banerjee,et al.  Rating Exposure Control Using Bayesian Decision Analysis , 2006, Journal of occupational and environmental hygiene.

[2]  S. Maidment,et al.  An introduction to a UK scheme to help small firms control health risks from chemicals. , 1998, The Annals of occupational hygiene.

[3]  R. M. Russell,et al.  An introduction to a UK scheme to help small firms control health risks from chemicals , 1998 .

[4]  Erik Tielemans,et al.  Classification of occupational activities for assessment of inhalation exposure. , 2011, The Annals of occupational hygiene.

[5]  J. Mulhausen,et al.  A strategy for assessing and managing occupational exposures , 1998 .

[6]  T. Schneider,et al.  Validation of a New Method for Structured Subjective Assessment of Past Concentrations , 1999 .

[7]  Hans Kromhout,et al.  Advanced Reach Tool (ART): development of the mechanistic model. , 2011, The Annals of occupational hygiene.

[8]  G Ramachandran,et al.  Retrospective exposure assessment using Bayesian methods. , 2001, The Annals of occupational hygiene.

[9]  Rachael M. Jones,et al.  Evaluation of COSHH Essentials for vapor degreasing and bag filling operations. , 2006, The Annals of occupational hygiene.

[10]  Martin Harper,et al.  Evaluation of the COSHH Essentials Model with a Mixture of Organic Chemicals at a Medium-Sized Paint Producer , 2010, The Annals of occupational hygiene.

[11]  H. Kromhout,et al.  Experts' subjective assessment of pesticide exposure in fruit growing. , 1996, Scandinavian journal of work, environment & health.

[12]  Paul Evans,et al.  Evaluation of COSHH Essentials for vapour degreasing and bag-filling operations. , 2006, The Annals of occupational hygiene.

[13]  I M Brooke.  A UK scheme to help small firms control health risks from chemicals: toxicological considerations. , 1998, The Annals of occupational hygiene.

[14]  M Macaluso,et al.  Inter-rater agreement in the assessment of solvent exposure at a car assembly plant. , 1993, American Industrial Hygiene Association journal.

[15]  Charles E Feigley,et al.  Deriving realistic source boundary conditions for a CFD simulation of concentrations in workroom air. , 2011, The Annals of occupational hygiene.

[16]  Erik Tielemans,et al.  'Stoffenmanager', a web-based control banding tool using an exposure process model. , 2008, The Annals of occupational hygiene.

[17]  S. Maidment.  Occupational hygiene considerations in the development of a structured approach to select chemical control strategies. , 1998, The Annals of occupational hygiene.

[18]  Katherine D Walker,et al.  Use of expert judgment in exposure assessment: Part 2. Calibration of expert judgments about personal exposures to benzene , 2003, Journal of Exposure Analysis and Environmental Epidemiology.

[19]  Gurumurthy Ramachandran,et al.  Exposure Modeling in Occupational Hygiene Decision Making , 2009, Journal of occupational and environmental hygiene.

[20]  Hans Kromhout,et al.  Advanced REACH Tool (ART): calibration of the mechanistic model. , 2011, Journal of environmental monitoring : JEM.

[21]  Martin Harper,et al.  Evaluation of COSHH essentials: methylene chloride, isopropanol, and acetone exposures in a small printing plant. , 2009, The Annals of occupational hygiene.

[22]  Haruo Hashimoto,et al.  Evaluation of the Control Banding Method—Comparison with Measurement‐based Comprehensive Risk Assessment , 2007, Journal of occupational health.

[23]  M Tischer,et al.  Evaluation of the HSE COSHH Essentials exposure predictive model on the basis of BAuA field studies and existing substances exposure data. , 2003, The Annals of occupational hygiene.

[24]  S. Semple,et al.  A training exercise in subjectively estimating inhalation exposures. , 2001, Scandinavian journal of work, environment & health.

[25]  Hans Kromhout,et al.  Conceptual model for assessment of inhalation exposure: defining modifying factors. , 2008, The Annals of occupational hygiene.

[26]  John S. Evans,et al.  Subjective Estimation of Toluene Exposures: A Calibration Study of Industrial Hygienists , 1989 .

[27]  H. Kromhout,et al.  Agreement between qualitative exposure estimates and quantitative exposure measurements. , 1987, American journal of industrial medicine.