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Risk Assessment & Toxicology

Emerging contaminants. Evolving toxicological data. The rapid evolution of new products and chemistries can make chemical management and risk assessments challenging.

EHS Support offers best-in-class risk assessment and toxicological services to support clients in managing operational risks, regulatory compliance and legacy liabilities. Our expertise includes deriving risk-based criteria for operational emissions and site remediation, assessing human and ecological risks to guide remedial decision-making and assessing chemical risk to guide the safe management and usage of chemicals.

We specialise in toxicological and risk-based assessments across a wide array of chemicals for both new and established chemical products, spanning industrial applications and environmental media. Whether conducting environmental risk assessments for remedial investigations or assessing product liability and product stewardship through chemical lifecycle analyses, our focus remains clear—to accurately define potential risks and provide actionable strategies to effectively mitigate and manage risk.

An Experienced Multi-Disciplinary Team

Our multi-disciplinary risk assessment team includes skilled risk assessors, toxicologists, ecologists, geochemists, hydrogeologists, hydrologists, data scientists, and statisticians. EHS Support has an extensive track record of providing sound technical advice and effective risk-based solutions, making us a trusted partner you can rely on for your next project.

For more information, contact Gary Long and Dana McCue.

Our Project Experience

Landfill Gas Risk Assessment

Landfill Gas Risk Assessment

Landfill Gas Risk Assessment, including evaluating the landfill cap to identify fugitive gas emissions, assess gas migration potential, and determine associated risks.
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Ash Residuals Technical Risk Assessment – Geelong, Victoria

Ash Residuals Technical Risk Assessment – Geelong, Victoria

EHS Support conducted a comprehensive technical assessment of Consolidated Leached Ash (CLA), using field investigations, advanced numerical modelling, risk evaluations, and peer reviews to ensure environmental risks to surface and groundwater remain minimal regardless of the water body fill strategy.
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Environmental Audit

Environmental Audit

EHS Support was engaged as the EPA appointed Environmental Auditor for the site. Key contributions to the auditing work included work plan review, report analysis, risk assessment review, report documentation and verification, and stakeholder engagement.
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Surface Water, Sediment & Soil Criteria Development – Natural Gas Supplier, Queensland, Australia

Surface Water, Sediment & Soil Criteria Development – Natural Gas Supplier, Queensland, Australia

EHS Support completed a study to define the treatment requirements for boron in produced water, considering both the potential impact of boron on aquatic and benthic organisms within the river, as well as impacts on plant growth and livestock from use as irrigation water or uptake by vegetation and use as livestock feed.
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Human Health Risk Assessment

Human Health Risk Assessment

Our human health risk assessments focus on the overall risk strategy. We ensure that the solution meets your expectations, while at the same time anticipating the challenges that may arise throughout the process. An established rapport with regulatory risk-assessment groups allows for transparent communication and a constructive approach that minimizes unnecessary iterations and enables realistic risk reduction. It’s a proactive approach to the use and transfer of innovative risk-based strategies.

Ecological Risk Assessment

Ecological Risk Assessment

Our assessments reflect representative exposure pathways and site-specific conditions that influence the bioavailability, mobility and toxicity of constituents. We have designed investigations to evaluate the environmental fate of persistent, bioaccumulative and toxic (PBT) chemicals and to assess risks at multiple trophic levels. We’ve worked on multiple, large-scale mercury-impacted sites investigating the fate, transport and risks associated with mercury in aquatic and terrestrial habitats.

Emerging Contaminants

Emerging Contaminants

Through our expertise in toxicology and risk assessment, we can advise you on the rapid advancements in the science relating to the fate, transport and toxicity of emerging contaminants. Likewise, our expertise in regulatory compliance keeps you up-to-date on evolving state and federal regulations that may impact your business. Our technical and regulatory expertise in emerging contaminants helps you develop effective risk-management strategies and remain compliant with the many regulations.

Persistent, Bioaccumulative, and Toxic Chemicals

Persistent, Bioaccumulative, and Toxic Chemicals

EHS Support has designed investigations to evaluate the environmental fate of PBT chemicals and to assess human health and ecological risks based on the site-specific bioavailability, toxicity and bioaccumulation/biomagnification of PBT chemicals within food webs. This includes multiple, large-scale mercury-impacted sites, where we’ve investigated the fate, transport and human health and ecological risks of mercury in aquatic and terrestrial environments.

Expert Witness

Expert Witness

Defining clearly the relationships between dose and its effects on human health is core to assessment of toxicology and risk. EHS Support’s litigation support team provides credible expert studies and effective expert testimony. Our experts have a breadth of experience working and specialising in product registration and emerging chemicals. Whether its toxicology, human health, food-chain assessments or assessments of specific ecological receptors, we have the resources you need.

Product Stewardship

Product Stewardship

Sound product stewardship minimizes the health, safety, environmental and social impacts of a product and its packaging throughout all lifecycle stages, while ensuring benefits to the business. We can support product development from ideation, ensure compliance with regulatory requirements, ensure customer expectations are met, defend products by assessing health and environmental effects and meet societal expectations for the responsible distribution of products for use as intended.