C1: Research Roundup Chemical Hazards
Mon, 6/1: 2:00 PM - 3:00 PM CDT
Research Roundups
Research Roundups
Ernest N. Morial New Orleans Convention Center
Room: 391
CM Credit Hours: 1
Content Level
Introductory
Intermediate
Core Competencies
Chemical Hazards
Exposure Assessment
Health Regulations
Session Availability
In-person
OnDemand
Targeted Audience
Practitioner
Professional
Transfer of Knowledge
Case Studies
Lecture Only
Presentations
C1a: Exposure to Organophosphate Esters in the Workplace
Organophosphate esters (OPEs) are a class of chemicals used as flame retardants and plasticizers in many products and industries. While research shows that OPE exposure is widespread in the general population, studies on the working population are scarce, despite their potential of being at higher risk of exposure proximity to the handling of OPE containing materials and products across their lifecycle.
Results from a recent Canadian study suggest widespread exposure to OPEs across three occupational groups: firefighters, paramedics and office workers, using measures of external exposure and biomonitoring. It is important that occupational hygienists are aware of OPEs as an occupational exposure of emerging interest.
Results from a recent Canadian study suggest widespread exposure to OPEs across three occupational groups: firefighters, paramedics and office workers, using measures of external exposure and biomonitoring. It is important that occupational hygienists are aware of OPEs as an occupational exposure of emerging interest.
Co-Authors
F. Kooshki, University of Toronto, Toronto, Ontario, Canada.
Acknowledgements & References
Y. Zhang, University of Toronto, Toronto, Canada
J. Okeme, McMaster University, Hamilton, Canada
N. Rajaram, University of Toronto & Ontario Ministry of Labour, Immigration, Training and Skills Development, Canada
R. Vermeulen, Utrecht University, The Netherlands
M.L. Diamond, University of Toronto, Toronto, Canada
P.A. Demers, Occupational Cancer Research Centre and University of Toronto, Toronto, Canada
J. Okeme, McMaster University, Hamilton, Canada
N. Rajaram, University of Toronto & Ontario Ministry of Labour, Immigration, Training and Skills Development, Canada
R. Vermeulen, Utrecht University, The Netherlands
M.L. Diamond, University of Toronto, Toronto, Canada
P.A. Demers, Occupational Cancer Research Centre and University of Toronto, Toronto, Canada
Author
Prof. Victoria Arrandale, PhD ROH, University of Toronto Toronto, ONCAN
C1b: Feasibility Assessment of EPA's OEVs/ECELs
In accordance with Toxic Substances Control Act (TSCA) section 6(a), EPA derives an Occupational Exposure Value (OEV) in the risk evaluation phase or Existing Chemical Exposure Limit (ECEL) in the risk management phase. For the thirteen chemicals with a published OEV/ECEL, the values are typically much lower than occupational exposure levels (OEL) established by other regulatory bodies.
An analysis was conducted to 1) identify pre-existing validated air sampling methods for each chemical with an OEV/ECEL established and 2) determine the methods' capability to measure sufficiently below the OEV/ECEL to ensure compliance. Methods cited by EPA in OEV/ECEL documentation as well as additional sampling and analytical methods from authoritative sources were reviewed for each chemical. Upon review, not all chemicals have a currently validated method that is sufficiently sensitive to meet compliance objectives of the OEV/ECEL values. This presentation will provide an overview of the feasibility assessment's methodology, summarize results, and discuss data gaps and potential implications to OEV/ECEL compliance.
An analysis was conducted to 1) identify pre-existing validated air sampling methods for each chemical with an OEV/ECEL established and 2) determine the methods' capability to measure sufficiently below the OEV/ECEL to ensure compliance. Methods cited by EPA in OEV/ECEL documentation as well as additional sampling and analytical methods from authoritative sources were reviewed for each chemical. Upon review, not all chemicals have a currently validated method that is sufficiently sensitive to meet compliance objectives of the OEV/ECEL values. This presentation will provide an overview of the feasibility assessment's methodology, summarize results, and discuss data gaps and potential implications to OEV/ECEL compliance.
Co-Authors
Cynthia Valeria Torres, MPH, ToxStrategies
Acknowledgements & References
A. Gauthier, Benchmark Risk Group, Chicago, IL, USA. - conceptualization, methodology and formal analysis.
J. Panko, ToxStrategies, Pittsburgh, PA, USA. - conceptualization, methodology, formal analysis, reviewing and editing proposal.
J. Panko, ToxStrategies, Pittsburgh, PA, USA. - conceptualization, methodology, formal analysis, reviewing and editing proposal.
Author
Mandie Kramer, MS, CIH, CSP, ToxStrategies Farmington, MNUSA