wca are an independent consultancy providing objective advice on the risk assessment of chemicals in the environment and the workplace.

We are experts in the fate, effects and regulation of chemicals, including industrial chemicals, consumer chemicals, pesticides, biocides, and human and veterinary medicines. We are also experts in the derivation and implementation of Environmental Quality Standards and Limit Values for chemicals in air, water, soil, sediments, biota and wastes.

We help our clients to meet their regulatory obligations under a wide range of international legislation, including the EU REACH Regulation, CLP Regulation, the Water Framework Directive (WFD) and Medicinal Products Directive.

We can ensure that the risks of chemicals to both the environment and human health are managed in a cost-effective manner. Our individually tailored solutions maximise benefits to the environment, workers, downstream users and your business, while satisfying the requirements of regulators. We understand our client’s needs, “own their issues”, and provide high quality, technically robust solutions.

Product Registration and Regulatory Compliance

wca offers a comprehensive range of product registration and regulatory compliance services for chemicals covering • REACH (and similar schemes in other parts of the world, including UK-REACH) • PBT Assessments • CLP • Endocrine Disruption Weight of Evidence Assessments • ERA for Human and Veterinary Pharmaceuticals, to EMA and FDA guidelines • Regulatory Advice and Training
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Chemical Hazard and Risk Assessment

Establishing the safe concentrations of chemicals with respect to ecological quality or human health requires a robust understanding of chemical fate, ecotoxicity and toxicology. wca has extensive experience of developing water quality standards and limit concentrations for chemicals for both ecological and human receptors. We possess in-depth knowledge on the derivation and implementation of EU WFD EQS, Canadian Water Quality Guidelines and Benchmarks, US EPA Water Quality Criteria, Australia/ New Zealand Water Quality Guidelines, Soil Screening Values and others.
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Toxicology and Human Health Risk Assessment

wca offers a comprehensive range of toxicology services, including • Supporting the design of studies and their interpretation • Evaluations of the mode and mechanism of action of potential endocrine disrupting chemicals • Endocrine Disruption Weight of Evidence Assessments • PDE Assessments
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Modelling Analysis

Understanding the risks of chemicals to the environment and human health often requires data on “exposure” to be either directly measured or estimated using an appropriate model. We have extensive experience with a range of environmental models, including those required to • Assess the bioavailability of metals • Develop exposure assessments for substances entering the environment from various sources
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Supply and Value Chain / Chemical Impact Assessment

Today’s chemical management regulations often require that decisions on the use of hazardous chemicals are based the overall impact or their use (or non-use) to society. wca can provide a range of such services including SEA, Impact Assessment and Eco-Labelling application support.
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Environmental and Regulatory Foresight

wca can provide bespoke foresight services for substances, issues, regulations and regions to inform strategy and allow early engagement on important business areas.
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