Toxicity Evaluation Support
We interpret toxicological data and derive occupational exposure limits
Toxicity Evaluation
Support
Toxicity data is only useful once it is translated into decisions, and that translation is where many organisations stall. A study report or a REACH dossier is not, by itself, an occupational exposure limit, a GHS classification or a design basis. Toxicity evaluation bridges that gap. We appraise laboratory and literature data through a weight of evidence lens, apply read across and uncertainty factors where direct data is absent, and derive the values that downstream engineering and hygiene actually need, including derived no effect levels and occupational exposure limits, GHS health hazard classification and the toxic endpoints that feed consequence modelling and risk based design. We work the interface between toxicology, industrial hygiene and process safety against OECD test guidelines, ECHA REACH methodology and ACGIH and NIOSH practice, so what you receive is defensible safe use guidance rather than an uninterpreted data pack.
How the study is executed
A structured, facilitated process that runs from scope definition through close out and produces defensible, actionable outputs.
Identify toxicity endpoints per ECHA / OECD, acute (oral, dermal, inhalation LD50/LC50), skin/eye irritation, sensitisation, repeated dose, mutagenicity, carcinogenicity, reproductive, align with REACH Annex VII X tiered requirements.
Conduct acute toxicity per OECD 401 405 (replaced by 420/423/425), subchronic per OECD 407 408, specify GLP (Good Laboratory Practice) compliance per OECD GLP Principles, align with REACH / CLP / GHS.
Apply in vitro alternatives per OECD validated methods, skin irritation (OECD 439), eye irritation (OECD 491/492), sensitisation (OECD 442C/D/E), apply QSAR per OECD QSAR Toolbox to reduce animal testing.
Conduct exposure assessment per ECETOC TRA / ChEM / ART, derive Occupational Exposure Limit per ACGIH / DECOS / SCOEL methodology, align with REACH DNEL derivation and OSHA PEL framework.
Design workplace exposure monitoring per EN 689 / NIOSH 1995, specify health surveillance per occupational medicine guidance, biological monitoring, audiometry, spirometry, align with OSHA / EU regulatory programmes.
Compile toxicity dossier with test reports, exposure assessment, and risk characterisation, integrate with REACH dossier, CLP / GHS classification, SDS authoring, align with corporate product stewardship programme.
What the study covers in full
Outcomes of Toxicity Evaluation Support
- We define defensible occupational exposure limits for novel chemicals
- We strengthen industrial hygiene control design
- We support informed substitution decisions
- We reduce the risk of chronic occupational illness
- We keep aligned with REACH derived effect level requirements
- We support GHS classification
- We document the derivation of occupational exposure limits for inspectors
- We produce work that withstands worker compensation scrutiny
- We target industrial hygiene controls effectively
- We strengthen the content of sections 8 and 11 of the safety data sheet
- We support management of change for new chemical introductions
- We inform medical surveillance triggers
- We help you avoid over protective PPE programmes
- We reduce occupational disease liability
- We support premium pricing on lower hazard products
- We optimise your industrial hygiene investment
Codes & standards we work to
Triggers that signal the need
Where Toxicity Evaluation Support applies
Process chemical plants, specialty chemical sites, and industrial parks requiring EHS management systems.
Upstream, midstream, and downstream facilities with complex EHS and regulatory requirements.
cGMP regulated facilities requiring integrated EHS, occupational hygiene, and sustainability programmes.
Extractive industry operations with dust, noise, chemical, and environmental compliance obligations.
Power plants, renewable energy facilities, and utilities with environmental permit obligations.
Manufacturing sites requiring chemical safety, waste compliance, and ESG reporting programmes.
Tangible deliverables
- Toxicity evaluation report
- Worksheets deriving occupational exposure limits and derived no effect levels
- GHS health hazard classification
- Read across justification
- Exposure scenario package
- Input for sections 8 and 11 of the safety data sheet
Ready to start your project?
Speak with our team to scope an engagement tailored to your facility, regulatory context, and lifecycle stage.