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Case Studies in Construction (AIHce EXP 2019 OnDemand)

Recorded at AIHce EXP 2019

Earn 1 Contact Hour

Exposures to Street Maintenance Workers During Asphalt Paving Operations

Each year, the City and County of Denver's Street Maintenance department resurfaces and reconstructs over 3,400 miles of roadways and alleys. The process for resurfacing roads includes milling roads, crushing recycled asphalt, manufacturing hot mix asphalt, and paving roadways. Exposures to various chemical substances during each of these work processes will be discussed, along with best practices for reducing exposures.
Co-Authors / Acknowledgements & References
Marcel Linne, City and County of Denver, Denver, CO, USA.
Kyle Vogel, MSPH, CIH, CSP, City and County of Denver Denver, CO
United States of America

Misplaced Polyurethane Spray Foam Troubleshooting and Remediation
Industrial hygienists are familiar with the research into emissions and measured IAQ associated with spray polyurethane foam (SPF) insulation applications. Misapplied SPF (MSPF) may emit trace levels of a variety of VOCs associated with catalysts, flame retardants, blowing agents, surfactants, emulsifiers and byproducts. Compounds and concentrations vary widely and depend on factors such as product formulation, application procedures, environmental conditions, and time elapsed since installation. Most of these emissions are not unique to MSPF and are also reported in background IAQ data or emissions from other sources present in the indoor environment.
Co-Authors / Acknowledgements & References
Ed Light, CIH, FAIHA, Building Dynamics, Ashton, MD, USA.
Paul Haas, CSP, CIH, Building & Forensic Sciences Palm Beach Gardens, FL
United States of America

Clinton Creek Asbestos Mine Worker Exposure Assessment and Safety Program
Clinton Creek is an abandoned asbestos mine located 100km northwest of Dawson City, Yukon and is currently managed by the Yukon Government. When an abandonment plan was attempted, the local creek channels, waste rock and tailings piles destabilized, causing substantial erosion and flooding. Since 2003, the Government of Yukon has managed the remediation plan with the focus to maintain the environmental integrity of the site and ensure there are no adverse effects to human health and safety. Wood Environment and Infrastructure Solutions was commissioned to carry out field investigations at the site in support of determining mine closure options. The 2017 and 2018 field programs included geotechnical assessment of waste rock and tailings areas to evaluate stability, a detailed asbestos exposure safe work procedure and worker exposure evaluations for asbestos. The process of evaluating potential hazards to workers exposed to naturally occurring asbestos, the development of safe work practices, completion of a worker exposure assessment and the refinement of the safe work procedures based on the exposure assessment is presented.
Co-Authors / Acknowledgements & References
Leslie Clements, MSc, CIH, Wood Environment and Infrastructure Solutions, Burnaby, BC, Canada.
Mr. Patrick Campbell, CRSP, EP, Wood Environment & Infrastructure Solutions Winnipeg, Manitoba

Stock #: AOD19_C6
ISBN #: 

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