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Company Info
Exposure Assessment Solutions, Inc. is located in Morgantown, WV and was incorporated
in West Virginia in 2002. The mission of the company is to provide occupational
health and safety professionals with software and other electronic tools designed
to facilitate the collection, analysis, interpretation, and management of occupational
exposure data. The company currently provides training on industrial hygiene
statistics and exposure sampling strategy design; develops data analysis software
and sampling strategy simulation software, technical publications, and consulting
services.
Contact EAS Inc.
Paul Hewett Ph.D. CIH is the founder and president of Exposure Assessment Solutions,
Inc. Previously, Paul worked for twenty-five years as an industrial hygienist
for NIOSH's Division of Respirable Disease Studies., specializing in the measurement
and characterization of pneumoconiosis producing dusts. His credentials include
a masters in industrial hygiene from Central Missouri State University (1978)
and a doctorate in industrial hygiene from the University of Pittsburgh, School
of Public Health (1991). Paul is also the author of numerous articles and chapters
on exposure assessment and statistics for industrial hygienists, as well as
a past chair of the AIHA Exposure Assessment Strategies Committee.
Several previous publications have been updated and made available as technical
reports:
Hewett, P. (2007): Technical Report
07-01 - Interpretation and Use of Occupational Exposure Limits for Chronic
Disease Agents. Exposure Assessment Solutions, Inc. (www.oesh.com).
Hewett, P. (2007): Technical Report
07-02 - Industrial Hygiene Exposure Assessment - Data Collection and Management.
Exposure Assessment Solutions, Inc. (www.oesh.com).
Hewett, P. (2007): Technical Report
07-03 - Industrial Hygiene Exposure Assessment - Data Analysis and Interpretation.
Exposure Assessment Solutions, Inc. (www.oesh.com).
Hewett, P. (2007): Technical Report
07-04 - Misinterpretation and Misuse of Exposure Limits. Exposure Assessment
Solutions, Inc. (www.oesh.com).
Technical reports:
Hewett, P. (2005): Technical Report
05-01 - A Conceptual Model for Generating Random Exposures for Use in Computer
Simulations. Exposure Assessment Solutions, Inc. (www.oesh.com).
Hewett, P. (2005): Technical Report
05-02 - Equations for Calculating Exposure Management Objectives. Exposure
Assessment Solutions, Inc. (www.oesh.com).
Hewett, P. (2005): Technical Report
05-03 - Performance-based Exposure Assessment Strategies for TWA Exposure
Limits. Exposure Assessment Solutions, Inc. (www.oesh.com).
Publications:
Hewett, P. and Ganser, G.H. (2007): A Comparison of Several Methods for Analyzing
Censored Data. Annals of Occupational Hygiene 51:611-632.
Hewett, P., Logan, P., Mulhuasen, J., Ramachandran, G., and Banerjee, S. (2006):
Rating Exposure Control Using Bayesian Decision Analysis. Journal of Occupational
and Environmental Health 3:568-581 .
Hewett, P. (2001): Industrial Hygiene Exposure Assessment - Data Collection
and Management. in Handbook of Chemical Health and Safety. American Chemical
Society.
Hewett, P. (2001): Industrial Hygiene Exposure Assessment - Data Analysis
and Interpretation. in Handbook of Chemical Health and Safety. American Chemical
Society.
Hewett, P. (2001): Misinterpretation and Misuse of Exposure Limits. Applied
Occupational and Environmental Hygiene 16:251-256 (2001).
Hewett, P. (2000): Chapter 6 - Design of Strategies for Assessing and Managing
Occupational Exposures. in Essential Resources for Industrial Hygiene, AIHA
Press.
Hewett, P. (1998): Letter to the Editor - Comments relating to Lyles, Kupper,
and Rappaport: A Lognormal Distribution-based Exposure Assessment Method for
Unbalanced Data. Annals of Occupational Hygiene 42:413-422
Hewett, P (1998).: Letter to the Editor - Comments relating to Tornero-Velez
et al: Compliance Versus Risk in Assessing Occupational Exposures. Risk Analysis
18:665-667.
Hewett, P (1998).: To the Editor - response to comments of Rappaport, Tornero-Velez,
nd Egeghy. Applied Occupational and Environmental Hygiene 13:203-206.
Hewett, P. (1998); contributing author to Damiano, J. and Mulhausen, J. (editors):
A Strategy for Assessing and Managing Occupational Exposures, Second Edition.
Fairfax, VA: American Industrial Hygiene Association.
Hewett, P. (1997): Mean testing: I. Advantages and disadvantages. Applied
Occupational and Environmental Hygiene 12:339-346.
Hewett, P. (1997): Mean testing: II. Comparison of several alternative procedures.
Applied Occupational and Environmental Hygiene 12:347-355.
Hewett, P. and Ganser, G.H. (1997): Simple procedures for calculating confidence
intervals around the sample mean and exceedance fraction derived from lognormally
distributed data. Applied Occupational and Environmental Hygiene 12:132-142.
Hewett, P. (1996): Interpretation and Use of Occupational Exposure Limits for
Chronic Disease Agents. in Occupational Medicine: State of the Art Reviews -
Occupational Epidemiology, 11(3):July-Sept.
Seixas, N.S., Hewett, P., Robins, T.G., and Haney, R. (1995): Variability
of particle size-specific fractions of personal coal mine dust exposures. American
Industrial Hygiene Association Journal 56:243-259.
Hewett, P. (1995): Sample size formulae for determining the true arithmetic
or geometric mean exposure of an occupational exposure zone. American Industrial
Hygiene Association Journal 56:219-225.
Hewett, P. (1995): The particle size distribution, density, and specific surface
area of welding fumes from 'SMAW' and 'GMAW' mild and stainless steel consumables.
American Industrial Hygiene Association Journal 56:128-135.
Hewett, P. (1995): Estimation of regional pulmonary deposition and exposure
for fumes from 'SMAW' and 'GMAW' mild and stainless steel consumables. American
Industrial Hygiene Association Journal 56:136-142.
Hewett, P., Pallay, B., and Gamble, J. (1993): A model for correcting workplace
protection factors for lung deposition and other effects. American Industrial
Hygiene Association Journal 54:142-149.
Hearl, F.J. and Hewett, P. (1993): Problems in Monitoring Dust Levels within
Mines. in Occupational Medicine: State of the Art Reviews - The Mining Industry
8(1): Jan-Mar.
Attfield, M.D. and Hewett, P. (1992): Exact expressions for the bias and variance
of estimators of the mean of a lognormal distribution. American Industrial
Hygiene Association Journal 53:432-435.
Hewett, P. (1991): Limitations in the use of particle size selective sampling
criteria in occupational epidemiology. Applied Occupational and Environmental
Hygiene 6:290-300.
Hewett, P. and McCawley, M.A. (1991): A microcomputer spreadsheet technique
for analyzing multimodal size distributions. Applied Occupational and Environmental
Hygiene 6:865-873.
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