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Research Roundup Aerosols & Airborne Particulates 2 (AIHce EXP 2023 OnDemand)



Course Description:
Recorded at AIHce EXP 2023

Presentations
Evaluation of the Potential for Cannabis Odors to Permeate Garments and Methods for Odor Remediation - Implications for Air Quality and Other Aspects

With the rapid expansion of the cannabis industry, concerns have been raised about the odors associated with cannabis cultivation and processing. Emissions from operations are inevitable, and may result in the contamination of worker clothing and other materials and an associated odor that remains after removal from the emission source. We identified and evaluated several options for remediating garments 'contaminated' by cannabis odors using various treatment processes (e.g. chloride dioxide, dry cleaning, conventional laundering, or 'airing out outdoors'). Test garments also underwent olfactory analysis. We present the results and pros and cons with each method. The results are informative for companies seeking solutions not only for worker clothing, but also for remediating other porous materials (e.g., upholstery, carpeting).

Co-Authors
E. Miller, Benchmark Risk Group, Grand Rapids, MI, USA
K. Keeton, Stantec (ChemRisk), Chicago, IL, USA
L. Gloekler, Stantec (ChemRisk), Aliso Viejo, CA, USA
S. Hoyt, Environmental Analytical Service, San Luis Obispo, CA, USA

Acknowledgements & References
The authors of this study are employed by Benchmark Risk Group (AA, EM), Stantec (ChemRisk) (LG, KK), and Environmental Analytical Services (SH). Partial funding for this study was provided by a defendant involved in litigation related to cannabis odor, and one of the authors (AA) has served as expert in litigation behalf of that defendant. The authors designed and executed the study and have sole responsibility for the writing and content of the presentation.

Author
Anders Abelmann, MS, PhD, CIH, Benchmark Risk Group Chicago, IL
United States of America

Modified Monitoring Methods in Mining

Remote mining operations often do not employ permanent industrial hygiene staff, and therefore in order to develop and maintain necessary industrial hygiene programs, they require the assistance of industrial hygiene consultants. This session will present cases of remote mines where industrial hygiene programs are overseen by consulting CIHs remotely, but where mining health and safety staff, who have been trained in sample collection techniques, actually collect the majority of samples to meet program requirements. We will discuss supplementary and more simplified methods of monitoring that have assisted these remote mining operations. We will present side-by-side diesel particulate data using jeweled impactors, cyclones, and 37 mm cassettes. In addition, we will present how approximate calibration factors can be applied to direct reading instruments to estimate real-time silica concentrations, which can assist in identifying areas or activities requiring additional controls.

Co-Authors
M. Shum, Aura Health and Safety Corporation, Burnaby, BC, Canada
T. Toic, Aura Health and Safety Corporation, Burnaby, BC, Canada

Acknowledgements & References
T Durrad, Aura Health and Safety Corporation, Burnaby, BC, Canada
A. Ehman, Aura Health and Safety Corporation, Burnaby, BC, Canada

Author
Levi Kimble, MSc, CIH, Aura Health & Safety Corp. Burnaby, British Columbia
Canada

Contact Hours:
1

Presentation Date:
05/23/2023

Presenters:
Nadia Moore, PhD, DABT, CIH, ERT
Anders Abelmann, MS, PhD, CIH
Levi Kimble, MSc, CIH