Paul Chrostowski, Ph.D., QEP
Page 1
2/12/2016
PAUL C. CHROSTOWSKI, Ph.D., QEP, FRSH
CPF Associates, Inc.
7708 Takoma Ave.
Takoma Park, MD 20912
301-585-8062
pc@cpfassociates.com
www.cpfassociates.com
EDUCATION
Ph.D. Environmental Engineering and Science, Drexel University
Philadelphia, PA (1981).
M.S. Environmental Science, Drexel University,
Philadelphia, PA (Environmental Chemistry and Health Specializations, USPHS Traineeship)
(1979).
B.S. Chemistry, University of California,
Berkeley, California (American Chemical Society Certified, Honors) (1976).
PROFESSIONAL CERTIFICATION
Dr. Chrostowski is a Qualified Environmental Professional (QEP) (#02970014) and a Fellow of the
Royal Society of Health (FRSH).
AWARDS/RECOGNITION
Recipient of 2003 Linn Enslow Memorial Award by NYWEA. Recognized for 25 years of service to
ACS Environmental Division.
OVERVIEW OF EXPERIENCE
Dr. Chrostowski is a founding member of Chrostowski, Pearsall, & Foster (CPF Associates, Inc,). He
is an environmental health scientist and chemist with over 30 years experience in environmental
science work on behalf of both government and private clients. Currently, Dr. Chrostowski’s practice
is divided between environmental health and forensic environmental chemistry. Previously, he was
Director of Environment, Health & Safety programs at The Weinberg Group, Vice President and
Senior Science Advisor at ICF/Clement, Senior Scientist at EA Engineering, Science & Technology,
Assistant Professor at Vassar College, a consultant in private practice and a pollution
control/industrial hygiene technician in industry. He has specialized experience in the toxicological,
epidemiologic, and chemical aspects of federal, state, and international regulatory programs including
the CWA, CAA, CERCLA/SARA, RCRA, TSCA, FIFRA, OSHA, waste management technologies
and environmental assessment. In addition to EPA and OSHA programs, Dr. Chrostowski has
expertise in indoor air quality, the risk analysis of hazardous material transportation, and the risk
analysis of consumer products including FDA-, CPSC,- and California Proposition 65 regulated
products. Dr. Chrostowski’s research interests include the behavior of complex mixtures, causation
analysis, applications of evidence-based toxicology, use of quantitative tools in toxicological problem
Paul Chrostowski, Ph.D., QEP
Page 2
2/12/2016
solving, quantitative microbiological risk assessment, pharmacokinetics, quantitative odor exposure
analysis, biomonitoring, and the integration of epidemiology in risk assessment. Dr. Chrostowski is
active in numerous professional societies and expert panels and has authored or co-authored over 120
publications or presentations in the environmental field. In addition to his technical work, Dr.
Chrostowski has taught university-level environmental sciences and has presented expert testimony in
litigation cases, regulatory, and permitting hearings and public meetings.
ENVIRONMENTAL HEALTH SCIENCES
Dr. Chrostowski’s environmental health sciences experience includes the application of toxicology,
epidemiology, microbiology, health physics, and biostatistics to the solution of problems associated
with exposure to potentially hazardous chemicals, radionuclides, and microorganisms. Dr.
Chrostowski’s work has included toxicological reviews, development of dose-response relationships,
investigating the mode of action of potential carcinogens, placing and interpreting toxicological
studies, planning and interpreting epidemiological studies, biomonitoring, causation analysis, risk and
exposure assessment, and expert testimony. Selected projects include:
 Evaluation of causation regarding occupational exposure to benzene and cancer in the
printing industry. Included modeling of exposure, research into work practices, toxicological
and medical records analysis.
 Biomonitoring for exposure to arsenic in child care and workplace settings. Included
development, implementation and interpretation of results of hair and urinalysis in addition to
related exposure modeling.
 Indoor air evaluations for exposure to volatile organic chemicals entering indoor air from
drinking water, consumer products, subsurface, and outdoor air. Included mathematical
modeling and various types of measurements.
 Evaluation of causation related to the potential association between workplace exposure to
pyrethrins and multiple chemical sensitivity.
 Performed a comprehensive review of toxicology, biomonitoring techniques and
epidemiology of workplace exposure to acrylamide, sodium azide, and hydrazoic acid.
Incorporated data from unpublished studies and re-evaluations of prior pathology and
interpretation of bioassay studies.
 Developed dose-response relationships for potential human cancer associated with exposure
to organochlorine pesticides based on a threshold mode of action involving the inhibition of
gap junction intercellular communication.
 Researched and evaluated the historical toxicology of chromium, PCBs, dioxin, asbestos,
lead, and organochlorine pesticides.
 Conducted risk assessments at over 350 contaminated sites and over 100 industrial or waste
management operations. Work included federal and state superfund sites, chemical process
industries, combustion sources, and land applications of solid waste. Applications of risk
assessment included the use of both deterministic and stochastic techniques, integration of
biological and medical monitoring, and use of epidemiology in risk assessment.
 Conducted exposure and risk analyses for chemical weapons potentially released to the
environment under a number of scenarios. Included development of dose-response
relationships and validation of exposure models. Modeled explosion and fire potential and
exposure to products of combustion in addition to un-reacted agents.
 Developed and applied techniques for quantitative probabilistic odor analysis that allow
calculation of the probability that an individual will either perceive or be annoyed by odors
associated with industrial or waste-management processes. Conducted reviews of variability
in human odor perception and the hypothetical relationship between odors and health effects.
FORENSIC ENVIRONMENTAL CHEMISTRY
Paul Chrostowski, Ph.D., QEP
Page 3
2/12/2016
Dr. Chrostowski’s forensic environmental chemistry experience includes the application of
chemometrics, mass balance, co-occurrence analysis, fate and transport, chemical kinetics and
chemical industry process knowledge to the solution of environmental problems involving timing of
releases, source allocation, and state-of-knowledge. In addition, Dr. Chrostowski conducts projects
involving advanced environmental analytical chemistry projects including method and data
validation, method development, QA/QC audits, and expert testimony. Selected projects include:
 Allocation of liability associated with two sources of dioxin based on industrial process
knowledge, co-occurrence analysis, and interpretation of mass spectra.
 Determination of sources of contamination to urban harbor sediments and inactive disposal
sites based on applications of chemometrics. Included pattern recognition, multi-variate
analysis, principal components analysis, factor analysis and theoretical chromatography.
 Applied variety of techniques including chemical fingerprinting, geostatistics, mass balance
and kinetic analyses to allocate sources of chemical mixtures including toxaphene, polycyclic
aromatic hydrocarbons, petroleum, and chlordane.
 Determination of the age of chlorinated solvents in an aquifer based on analysis of chemical
degradation kinetics and stable isotope analysis in addition to fate and transport modeling.
The determination included a stochastic analysis to put error bounds around the age.
 Determination of the age of DDT in sediments based on novel analyses of DDT metabolites,
mass balance, and kinetic modeling.
 Calculation of the date of release of PCBs to a surface water body based on industrial process
knowledge, by-product formation, co-occurrence, and transport modeling.
 Critical review of environmental chemical data showing that it was not suitable for use in
litigation; developed and oversaw the implementation of protocols for environmental
sampling and analysis to meet strict evidentiary standards.
EMPLOYMENT HISTORY
1999-present
1993-1999
1985-1993
1984-1985
1981-1984
1979-1984
1976
1974-1976
1970-1972
1968-1970
1964-1968
President, CPF Associates, Inc.
Director, Environment, Safety & Health practice, The Weinberg Group Inc.
Vice President and Senior Science Advisor, Clement Division of ICF/Kaiser
Senior Scientist, EA Engineering, Science & Technology
Assistant Professor, Vassar College
Consulting scientist in private practice
Information Analyst, Solar Energy Information Center
Research technician, University of California
Laboratory/industrial hygiene technician, C&D Batteries
Laboratory/pollution control technician, Jack Frost Sugar
Petty Officer, 2nd Class, U.S. Navy
PROFESSIONAL SOCIETIES









Air and Waste Management Association
American College of Governmental Industrial Hygienists
American College of Toxicology (Regular member)
American Chemical Society
American Chemical Society Environmental Division
Association of Environmental Health & Sciences
National Environmental Health Association
International Society of Environmental Forensics
International Society for Exposure Analysis
Paul Chrostowski, Ph.D., QEP

Page 4
2/12/2016
Society for Risk Analysis
PUBLICATIONS
Dr. Chrostowski is the author or co-author of over 120 publications or presentations. A full
bibliography and copies of publications are available on request. Selected recent
publications/presentations include:
Chrostowski, P.C. & Foster, S.A. 2001. Forensic Applications of Environmental Health Sciences. in
Sullivan, P.J., Agardy, F.J., Traub, R.K., Practical Environmental Forensics. Wiley & Sons, NY.
Chrostowski, P.C., Foster, S.A., Preziosi, D. 2001. The Global Dioxin Balance – Is There an
Emissions Deficit? Paper #208, AWMA 94th Annual Conference, Orlando, FL.
Foster, S.A. & Chrostowski, P.C. 2001. Model Validation of Indoor Exposure to Volatile Organic
Compounds from Showering. Paper # 77. AWMA 94th Annual Conference, Orlando, FL.
Foster, S.A., Chrostowski, P.C., Preziosi, D.V. 2003. A Comparison of Two Mercury Environmental
Fate and Transport Models in Evaluating Incinerator Emissions. 2003 Incineration Conference.
Orlando, FL May 12-16.
Chrostowski, P.C. and Foster, S.A. 2003. Human Health Risk Assessment for Polybrominated
Diphenyl Ethers in Biosolids. 23rd International Symposium on Halogenated Organic Pollutants and
Persistent Organic Pollutants. Boston, Aug 2003.
Chrostowski, P.C. 2003. Odor Perception and Health Effects. WEFTEC. Los Angeles, CA.
Chrostowski, P.C. 2003. Emerging Pollutants in Biosolids. AMSA Summer Conference. Boston.
July 16, 2003.
Chrostowski, P.C. & Foster, S.A. 2004. Swimming Pool Shock Treatment. Environ Health 66:26-27.
Langmuir,D., Chrostowski, P., Vigneault, B., and Chaney, R. 2004. Issue Paper on the
Environmental Chemistry of Metals. Prepared for USEPA Risk Assessment Forum, Contract #68-C98-148.
Chrostowski, P.C. 2005. What Inhibition of Gap Junction Intercellular Communication Can Tell Us
About Carcinogenic Dose-response. Society for Risk Analysis December 4-7, Orlando, FL.
PROFESSIONAL ACTIVITIES
Dr. Chrostowski participates in a number of pro bono professional activities including Montgomery
County MD Energy and Air Quality Advisory Committee, Takoma Park - Montgomery College
Neighbors Advisory Committee, Science Fair judge for environmental science projects, Montgomery
County, MD, and the Takoma Park Community Center Citizen’s Advisory Committee. Other
professional activities include acting as a peer reviewer for several relevant journals, participation in
peer review panels convened by EPA and ATSDR, and participation at several professional
conferences each year.