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The following posts are in no particular order. They are purposely randomized.

Case Studies

Airport traffic flow and signage review

An international airport authority sought a comprehensive assessment of passenger and vehicle traffic flow after receiving complaints of confusion and safety concerns. Reports indicated that passengers were struggling to interpret signage, often stopping too long to process graphics, which caused line-ups and delays. Lighting problems compounded the issue, with signs placed in poorly illuminated areas.…
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Case Studies

Applying New Assessment Methods (NAMs) for Assessing Semi-Volatile Organic Compounds (SVOCs) in Indoor Residential Environments

Health Canada sought expert support in advancing its efforts to develop screening values for semi-volatile organic compounds (SVOCs) commonly found in residential indoor environments. Previous work on indoor air contaminants had focused on volatile organic compounds (VOCs), where screening values were developed based on existing inhalation quantitative hazard assessments (QHAs). However, many SVOCs were identified as having insufficient data to establish such values, leaving critical gaps in risk evaluation.
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Case Studies

Institutional & communications assessment

Under the supervision of Director Purcell and his cabinet, the six-month project began with an internal review of attitudes, projects, responsibilities and management reporting lines. The work uncovered multiple inconsistencies and inefficiencies. What's more, there were very real risk consequences at the operational level.
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Case Studies

External Peer Consultation of the Inorganic – Late Biomonitoring Approach Draft Screening Assessment Report

To support the Chemicals Management Plan under the Canadian Environmental Protection Act (CEPA), Health Canada sought expert peer consultation for a draft screening assessment report (DSAR) evaluating 47 inorganic substances identified as priorities. The client required independent scientific and technical expertise to assess whether the report’s conclusions—particularly regarding health effects, exposure pathways, and risk characterizations—were sound, complete, and defensible.
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Case Studies

External Peer Review of the Draft Screening Assessment Report on Selected C3-C5 Alcohols

To support the quality and defensibility of regulatory decision-making under the Canadian Environmental Protection Act, 1999 (CEPA), Health Canada engaged Risk Sciences International to coordinate an independent external peer review of the Draft Screening Assessment Report (DSAR) for Selected C3-C5 Alcohols, focusing specifically on tert-butanol (CAS RN 75-65-0). This group of substances had been prioritized for risk assessment based on potential human health concerns.
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Case Studies

Risk Assessment of the Impact of Lethality Standards on Salmonellosis from Ready-to-Eat (RTE) Meat and Poultry Products

To support regulatory decision-making, a comprehensive risk assessment was conducted to evaluate how varying lethality performance standards would impact the public health burden of salmonellosis associated with Ready-to-Eat (RTE) meat and poultry products. The primary objective was to quantify the expected number of cases of illness under different reductions in Salmonella presence across a broad spectrum of RTE product categories.
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Case Studies

Risk-Based Optimization of Enforcement Activities

A federal agency required scientific support to enhance the effectiveness of its environmental enforcement activities. This involved identifying and analyzing the risk factors—both environmental and human health-related—that contribute to the likelihood and impact of regulatory offences. The objective was to develop a structured approach to prioritize enforcement actions under key legislative frameworks including the Canadian Environmental Protection Act, the Fisheries Act, the Species at Risk Act, and others.
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