Stream 8a: Human Health and Ecological Risk Assessment
- What’s in a Guideline? A Look Back at the History of Risk-Based Guidelines in Canada
- Moving Beyond Upper Confidence Limits in Risk Assessment
- Tiered Approach for Human Health Risk Assessment: Case Study for Two Remote Sites
- Quantitative Risk Assessment and its Applicability to Mine Closure and Long-Term Care
- Solutions for Protecting Aquatics and Drinking Water Near Giant Mine
- DNAPL in Fractured Bedrock: An Approach to Build a Complex Conceptual Site Model Supporting the Development of a Remedial Options Analysis and Remedial Action Plan/Risk Management Measures Tailored to HHRA Findings
- How to Navigate Jurisdictional Differences in Risk Assessment Guidance and How These Differences Can Have Significant Implications on Risk Conclusions – A Case Study Using a Detailed Human Health Risk Assessment at a Former Military Airport
- Recent Developments in Soil, Dust and Sediment Ingestion Rates for Consideration in HHRA
- An Innovative Risk Assessment Approach to Derivation of Site-Specific Toxicity Reference Concentrations for Petroleum Hydrocarbon Vapour Mixtures in Indoor Air
Janice Paslawski, Lindsay Du Gas, Lindsay Woof, Mikhaila Paslawski
SNC-Lavalin
SNC-Lavalin
The objective of this presentation is to simply remind our interested participants of the complexity that gets buried in a single number that we base our remediation and risk management decisions on. We will discuss the sensitivity of selected inputs that are included in a freshwater aquatic life guideline recalculation as a reminder of the influence of each input on the overall risk-based target.
Gillian Dunlop1, Tania Noble1, Siobhan Sutherland2
1Stantec Consulting Limited
2Crown-Indigenous Relations and Northern Affairs Canada
1Stantec Consulting Limited
2Crown-Indigenous Relations and Northern Affairs Canada
The objective of this presentation is to share a case study to show how area-weighted concentrations can be applied in human health risk assessment.
Tania Noble, Gillian Dunlop, Katherine Ketis, Stephanie Demers,
Stantec Consulting Limited
Stantec Consulting Limited
The objective of this presentation is to share a case study to show how area-weighted concentrations can be applied in human health risk assessment.
Lynn Pilgrim1 and Emma Mckennirey2
1Wood
2Crown-Indigenous Relations and Northern Affairs Canada
1Wood
2Crown-Indigenous Relations and Northern Affairs Canada
The objective of this presentation is to provide an overview of the quantitative risk assessment for the Giant Mine Remediation Project, including describing the QRA process, how the specific requirements of the environmental assessment were incorporated into the scope, and the next steps in the process to support project approvals, and will discuss how the QRA will be used as a tool to help guide the closure and reclamation plan in terms of decision making and mitigation measures.
Tasha Hall1, Emma Mckennirey2, Jennifer Singbeil3, Alison Snow1
1Golder Associates Ltd.
2Crown-Indigenous Relations and Northern Affairs
3Public Services and Procurement Canada
1Golder Associates Ltd.
2Crown-Indigenous Relations and Northern Affairs
3Public Services and Procurement Canada
The objective of this presentation is to outline various levers used to protect downstream aquatics and drinking water, using Giant Mine as a case study that offers potential solutions for other mines facing similar water quality challenges.
DNAPL in Fractured Bedrock: An Approach to Build a Complex Conceptual Site Model Supporting the Development of a Remedial Options Analysis and Remedial Action Plan/Risk Management Measures Tailored to HHRA Findings
Jean-Philippe Gobeil, Stantec Consulting Limited
The objective of this presentation is to share a case study demonstrating an application of this approach to a site located at CFB Trenton featuring chlorinated solvent impacts in overburden and fractured bedrock and potential unacceptable risk via the vapour intrusion pathway for nearby building occupants.
How to Navigate Jurisdictional Differences in Risk Assessment Guidance and How These Differences Can Have Significant Implications on Risk Conclusions – A Case Study Using a Detailed Human Health Risk Assessment at a Former Military Airport
Brett Lucas, Ahmadreza Mehjoo, Blair McDonald
Golder Associates Ltd.
Golder Associates Ltd.
The objective of this presentation is to highlight how differences in regulatory guidance can have significant impacts on risk conclusions and provide an example on how these situations can be handled using a science-based approach.
Ross Wilson, Wilson Scientific
Golder Associates Ltd.
Golder Associates Ltd.
The objective of this presentation is to provide an overview of the current science and important considerations in selecting ingestion rates for use in human health risk assessments.
An Innovative Risk Assessment Approach to Derivation of Site-Specific Toxicity Reference Concentrations for Petroleum Hydrocarbon Vapour Mixtures in Indoor Air
Ivy Liu, David Tarnocai, Chris Bestfather, Janice Paslawski
SNC-Lavalin
SNC-Lavalin
The objective of this presentation is to provide an alternative approach, which is more site-specific and less likely to be overly conservative, for indoor air inhalation risk evaluation on petroleum hydrocarbon vapour mixture.