Gradient

Principals

Catherine Petito Boyce, S.M.
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Education

S.M., Environmental Health Management (Toxicology), Harvard School of Public Health

B.S., Biology (high honors), Yale University

Expertise

  • Exposure Modeling
  • Toxicity Assessment
  • Regulatory Comment
  • Cleanup Negotiations
  • Probabilistic Methods
  • Risk Assessment

Catherine Petito Boyce, S.M.

Principal Scientist

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Ms. Petito Boyce is an environmental health scientist with 30 years of experience in evaluating health effects, analyzing chemical fate and exposure, and assessing risks associated with toxic chemicals.  She has applied her technical expertise to developing innovative exposure and risk assessment methods, conducting site-, workplace-, and product-specific exposure and risk analyses; and determining effective risk mitigation measures for contaminated sites and other exposure settings.  Her diverse experience also includes developing negotiation and litigation strategies; representing clients in public presentations, technical meetings, and negotiating sessions to support regulatory processes and litigation; and planning and overseeing effective field investigations and remedial design efforts.  Ms. Petito Boyce has published numerous articles and made many presentations on exposure and risk assessment topics.  She has also actively participated in regulatory policy review processes and has critically reviewed documents addressing issues such as health risks associated with lead exposures, risk assessment applications of Next Generation toxicity testing and associated interpretation techniques, and approaches for assessing petroleum-contaminated sites.

Education

S.M., Environmental Health Management (Toxicology), Harvard School of Public Health

B.S., Biology (high honors), Yale University

Expertise

  • Exposure Modeling
  • Toxicity Assessment
  • Regulatory Comment
  • Cleanup Negotiations
  • Probabilistic Methods
  • Risk Assessment

Services

Representative Projects

Chemical Screening Program Development:  Conducted peer reviews of exposure and health effects components of pilot and primary program Screening Health Assessment Documents for numerous chemicals to assist Health Canada in developing and implementing a sound program for evaluating potential exposures and human health risks posed by existing chemicals in commerce.

Support for Product Screening Programs:  Assisted several industrial clients in compiling relevant exposure and toxicity assessment resources to support product safety reviews.

Regulatory Review and Comment:  Reviewed regulatory documents issued by US EPA (regarding air quality standards), OSHA (regarding occupational standards), the European Chemicals Agency (regarding lead in children’s and fashion jewelry), and California EPA (regarding soil in school yards). Prepared written comments, focusing in part on available information regarding potential health effects associated with low-level lead exposures.

Risk Analyses for Treated Wood Products:  Provided strategic and technical support in a suite of interrelated projects addressing regulatory requirements, scientific research needs, and potential risks associated with exposure to wood-treating chemicals and structures built of treated wood.

Risk Evaluations for Former MGP Site:   Assessed the health risks associated with potential exposures to benzene and PAHs resulting from recreational activities in the vicinity of a former manufactured gas plant site.

Risk-Based Remediation at Metals Recycling Facility:  Provided strategic and technical support in evaluating appropriate cleanup strategies for an industrial facility, including participating in negotiations with PRP group and regulatory agencies, designing and overseeing a soil sampling program and site remediation efforts, and analyzing site-specific information demonstrating the lack of mobility of TPH at the site.

Selected Publications

Petito Boyce, C; Goodman, JE; Sax, SN; Loftus, CT.  2015. "Providing perspective for interpreting cardiovascular mortality risks associated with ozone exposures." Regul. Toxicol. Pharmacol. 72 : 107-116.

Goodman, JE; Petito Boyce, C; Sax, SN; Beyer, LA; Prueitt, RL.  2015. "Rethinking meta-analysis: Applications for air pollution data and beyond." Risk Anal. 35 : 1017-1039.

Goodman, JE; Petito Boyce, C; Pizzurro, DM; Rhomberg, LR.  2014. "Strengthening the foundation of next generation risk assessment." Regul. Toxicol. Pharmacol. 68 : 160-170.

Petito Boyce, C; Sax, SN; Dodge, DG; Pollock, MC; Goodman, JE.  2009. "Human exposure to decabromodiphenyl ether, tetrabromobisphenol A, and decabromodiphenyl ethane in indoor dust." J. Environ. Protect. Sci. 3 : 75-96.

Petito Boyce, C; Lewis, AS; Sax, SN; Eldan, M; Cohen, SM; Beck, BD.  2008. "Probabilistic analysis of human health risks associated with background concentrations of inorganic arsenic: Use of a margin of exposure approach." Hum. Ecol. Risk Assess. 14 : 1159-1201.