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    • Product Registration and Regulatory Compliance
      • REACH Regulation
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        • Weight of evidence review of endocrine disrupting properties
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      • Regulatory advice and training
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    • Chemical Hazard and Risk Assessment
      • Environmental Quality Standards (EQS) Derivation and Implementation
        • About EQS and Limit Values
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      • Nanomaterial Environmental Risk and Impact Assessment
    • Toxicology and Human Health Risk Assessment
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      • PDE assessments
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      • Bioavailability of Metals
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    • Supply and Value Chain / Chemical Impact Assessment
      • Socio-economic Analysis (SEA) of Chemicals Legislation
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      • EU Ecolabel Application Assistance
        • Our Experience
    • Environmental and Regulatory Foresight
  • About us
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    • Directors
      • Dean Leverett
      • Graham Merrington
      • David Taylor
      • Paul Whitehead
      • Mike Gardner
      • Stuart Rutherford
    • Principal Consultants
      • Becky Brown
      • Owen Green
      • Becky Marks
      • Grace Panter
      • Adam Peters
      • Ed Stutt
      • Rhiannon Smith
    • Senior Consultants
      • Olivia Tran
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    • Consultants
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      • Kate Roylance
    • Associates
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      • Mark Yoxon
  • Blog
    • Blog Archive
      • Blog Archive 2020
        • 10 years at wca
        • Conference on Current Issues in Contaminated Land
        • Draft Regulation sets strict deadlines for registrants to update their REACH registration dossiers
        • Market Research for Authorisation under REACH
        • Statement on COVID-19
        • Update on COVID-19
        • SETAC SciCon
      • Blog Archive 2019
        • What happens under REACH if there is no deal?
        • Ecolabelling in the UK after Brexit
        • REACH update - Dossier evaluation decisions
        • Assessing Compliance of European Fresh Waters for Copper: Accounting for Bioavailability
        • Priorities for the UK chemicals sector - challenges, opportunities and the future for regulation post-Brexit
        • Comparison of the chronic toxicity of nickel to temperate and tropical freshwater species
        • Expert advice in designing fish and amphibian tests for endocrine disruption
        • rsa Conference on The Toxicology of Mixtures and Application of Cumulative Risk Assessment
        • Workshop on Advances in risk assessment tools with relevance to tropical southeast Asia and Melanesia
        • wca at SETAC Helsinki
        • Improving environmental risk assessment of chemicals: Step towards evidence-based ecotoxicology
        • Comparison of the Chronic Toxicity of Nickel to Temperate and Tropical Freshwater Species
        • The deadline for pre-registration under Korea REACH is approaching!
        • Effects of silver nitrate are a conservative estimate for the effects of silver nanoparticles on algae growth and Daphnia magna reproduction
        • Polymers under Korea REACH……?
        • Decide on your K-REACH legal entities and Only Representatives soon!
        • wca at SETAC-Europe 2019 (26 – 30 May 2019)
        • SETAC Helsinki 2019 Day 1
        • SETAC Helsinki 2019 Day 2
        • SETAC Helsinki 2019 Day 3
        • Implementing bioavailability-based approaches for metals compliance; ISPRA May 2019
        • Are the Biotic Ligand Models (BLM) suitable for assessing the ecological risk of metals in Nordic freshwaters? Project for the Nordic Council of Ministers.
        • Pharmacology beyond the patient – The environmental risks of human drugs
        • bio-met v5.0 released
        • Environmental Impact of Pharmaceuticals in Developing Countries
        • Employee Ownership – what it means to us
        • User-Friendly Tools to account for metals bioavailability, Training Seminar with Spanish Regulators, at the Ministry for the Ecological Transition, Madrid
        • Assessing the risks of Pharmaceuticals in the Environment (PiE) at wca
        • Clarification of provisions for phase-in substances under REACH published by European Commission
        • Report on the application of food and organic garden waste (FOGO) to land for the NSW Environment Protection Authority
        • Antibiotics in the Water Environment: Occurrence, Detection, Fate
      • Blog Archive 2018
        • Environmental risk assessment of medicinal products
        • Fresenius Endocrine Disrupter Conference, Cologne
        • Call-off contracts and REACH training
        • HSE & Defra Meeting: Chemicals EU Exit Stakeholder Event
        • ET&C Editors Spotlight
        • 29th SETAC Europe Annual Meeting (Helsinki; 26th - 30th May 2019)
        • ALGA PFAS Summit, Sydney ICC; 2nd October
        • wca in New Caledonia
        • Update from the UK government of no deal Brexit on chemical regulation
        • Refinery effluent assessment: Options for using effects-based tools in combination with passive samplers
        • 2018 EcoForum Meeting in Sydney from the 2nd to 4th October 2018
        • Updating and upgrading NONS registrations under REACH
        • Beyond registration…what next for REACH?
        • Joint Northern Contaminated Land Fora Summer Conference 2018 - Hosted by Yorkshire Contaminated Land Forum, 10th July
        • Validation of the nickel biotic ligand model for locally relevant species in Australian freshwaters
        • Endocrine disruptors and biocides
        • SETAC Rome 2018; Days 3 and 4
        • SETAC Rome 2018; Day 2
        • SETAC Rome 2018 Day 1
        • Nanosilver less toxic than ionic silver in standardised ecotoxicity tests
        • wca at SETAC Rome
        • SETAC Workshop on Bioavailability-Based Freshwater Quality Criteria for Metals
        • New article on weight of evidence approaches for endocrine disrupters
      • Blog Archive: 2017
        • 28th SETAC Europe Annual Meeting (Rome; 13th - 17th May 2018)
        • Active pharmaceutical ingredients entering the aquatic environment from wastewater treatment works: A cause for concern?
        • 3rd International Conference on Endocrine Disruptors
        • Sector specific guidance for REACH registrations
        • Putting the Read Across Assessment Framework into practice
        • Rinse-off Cosmetic Ecolabels: Lessons Learned
        • Expert workshop on test methods for evaluating endocrine disrupters
        • SETAC Europe Brussels 2017; Day 5
        • SETAC Europe Brussels 2017; Day 3 and 4
        • metalsintheenvironment.com has been launched
        • SETAC Europe Brussels 2017; Day 1 and 2
        • wca at SETAC Brussels
        • Workshop on Thyroid Disruption
        • ECETOC Seven Steps for the Identification of Endocrine Disrupting Properties (ECETOC 7SI-ED)
        • 56th Annual Meeting and ToxExpo™, Baltimore (Maryland, US): The last day
        • 56th Annual Meeting and ToxExpo™, Baltimore (Maryland, US): Day 3
        • Society of Toxicology 56th Annual Meeting and ToxExpo™, Baltimore (Maryland, US): Day 2
        • 56th Annual Meeting and ToxExpo™, Baltimore (Maryland, US): Day 1
        • “Effects Based Tools” (EBT) and the Water Framework Directive (WFD)
        • Society of Toxicology Annual Meeting and ToxExpo™ 2017
        • Workshop: Applying exposure science to increase the utility of non-animal data in the efficacy and safety testing
        • Endocrine Disruption: What Does the Future Hold for Safety Assessment?
      • Blog Archive: 2016
        • New Ecolabel category: Furniture
        • Environmental risk assessment of antibiotics
        • 7th SETAC World Congress and 37th SETAC North America Annual Meeting
        • Italian National Guideline on biota monitoring and Biotic Ligand Models
        • Abstract Submission for SETAC Europe 2017
        • Does the scientific underpinning of regulatory tools to estimate bioavailability matter?
        • SETAC Asia/Pacific in Singapore 16th to 19th September 2016
        • Can Chemical Water Quality Standards developed by one jurisdiction be applied in other countries or regions?
        • WCA's commitment to our EU clients following the outcome of the United Kingdom referendum.
        • Italian Training on BLMs and Bioavailability of Metals; 24th June – CNR-IRSA (Brugherio, Italy)
        • The 2nd International Conference on Deriving Environmental Quality Standards for the Protection of Aquatic Ecosystems (EQSPAE – 2016)
        • wca at SETAC Nantes - A Review
        • Adverse Outcome Pathways (AOPs) and Regulatory Acceptance
        • Assessment of Pressures on European Water Bodies Workshop JRC Ispra, Italy, 11-12 May 2016
        • Bioavailability Implementation Forum; Meeting the challenges of implementing bioavailability-based EQS for metals
        • wca at SETAC-Europe Nantes May 22nd – May 26th
        • wca at SETAC Nantes
        • IUCLID 6 released
        • The importance of the Ecolabel in a Circular Economy
        • Society of Toxicology Annual Meeting - Day 3
        • Society of Toxicology Annual Meeting - Day 2
        • Society of Toxicology Annual Meeting - Day 1
        • Concept, tools and strategies for effluent testing: An International Workshop
        • wca at the Society of Toxicology Annual Meeting and ToxExpo
        • Lead Environmental Quality Standard (EQS) Screening Tool
        • Assessing the Reliability and Relevance of Aquatic Toxicity Studies Under the WFD
        • Cost vs Benefit in Chemicals Risk Management
        • Interdepartmental Group on Health Risks from Chemicals (IGHRC) Awareness Day - REACH Update
        • wca branches out to consortium administration tasks
        • SETAC Pellston Workshop™: Environmental Hazard and Risk Assessment Approaches for Endocrine Active Chemicals (EHRA)
        • Are the Biotic Ligand Models (BLM) suitable for assessing the ecological risk of metals in Nordic freshwaters?
      • Blog Archive: 2015
        • Chemicals legislation benefits indicators
        • There is a Conflict at the Heart of EU Water Pollution Policy
        • Outputs from Terrestrial Bioaccumulation workshop
        • The Manganese Showcase Symposium
        • Environmental Risks of Nickel in Southeast Asia and Melanesia
        • The Pharmaceutical Industry – An introduction
        • Still Only One Earth
        • REACH in the Aviation Industry
        • Environmental Regulations and the Green Chemist
        • SEGH – Bratislava, 22-26 June
        • REACH: The importance of substance identity
        • SETAC Europe – Barcelona, 3-7 May
        • Non-animal testing for skin sensitisation – some regulatory acceptable alternatives
        • wca Abstracts Accepted for SETAC Barcelona
        • Vacancy for Senior Consultant (Toxicology)
      • Blog Archive: 2014
        • ECETOC SSDs Workshop Report
        • Metal Bioavailability Assessment Tool
        • SETAC North America, Vancouver
        • Pharmaceuticals in the Environment – A Debate
        • Validation of mollusc reproduction test
        • SETAC Asia-Pacific, Adelaide
        • ETAC Asia-Pacific, Adelaide
        • Pharmaceuticals in the Environment: DEFRA scoping the issues workshop
        • PBT assessments using a weight of evidence approach
        • Cost Benefit Analysis of Reduction in Pharmaceutical Residues in the Environment
        • The Tropical Environmental Risk Assessment of Nickel
        • SETAC Europe Annual Meeting 2014
        • Publication of Category 4 Screening Levels for Contaminated Land
        • Workshop: Non-dietary human exposure assessment of biocide products
        • wca welcomes highly experienced scientists to its Mammalian and Environmental Toxicology teams
        • January 2014 ‘Environmental Science and Pollution Research’ – Special Issue on EQS
      • Blog Archive: 2013
        • Protected: SEPA Organic Chemicals
        • Protected: Drafting supplementary guidance for the implementation of EQSbiota
        • Passive Samplers Workshop – Brno, Czech Republic – July 2013
        • Pharmaceuticals in the environment: is there a problem? PHARMAS Conference – Nimes 2-3 June 2013
        • wca at SETAC 2013 in Glasgow
        • Implementing Ecopharmacovigilance in Practice: Challenges and Potential Opportunities
        • REACH – One month to go and looking ahead
        • Visit us at the SETAC Europe Annual Meeting
        • Pharmaceuticals in the environment – Is there a problem?
        • Seminar on Product Authorisation under the Biocidal Products Directive
        • wca look towards the 2013 REACH deadline
        • Regulation of nanomaterials in Europe
        • SETAC Europe 2013 in Glasgow
      • Blog Archive: 2012
        • Weight of Evidence Assessments – Whose evidence can be trusted
        • Health and Safety in Laboratories
        • Updates to the bio-met metal bioavailability tool planned to extend applicability range
        • The Society for Environmental Toxicology And Chemistry (SETAC)
        • SETAC Global Advisory Group on Endocrine Disrupter Testing & Risk Assessment (EDTRA)
        • Derivation of Chemical Limit Values for Water Quality: An International Perspective
        • wca contribute to the development of new screening criteria for contaminated land risk assessment
        • Aquatic Toxicology Symposium
        • EU commission publishes plan for chemical mixtures
        • SETAC Europe and SETAC World Congress – Berlin 2012
        • One year to go to the 2013 REACH registration deadline!
        • REACH: Socio-Economic Assessments
        • SETAC World Congress / SETAC Europe Meeting – Berlin
        • 3rd International Conference on Sustainable Pharmacy
        • WHAM7 metal speciation modelling software released
        • SETAC workshop on the synthesis, characterisation, ecotoxicity, hazard and risk assessment of engineered nanoparticles
      • Blog Archive: 2011
        • Strategies for Sustainability
        • Quantitative risk assessment for contaminated land
        • wca support Movember
        • Ecopharmacovigilance – An update
        • COMING SOON: 2013 REACH Registration Deadline
        • OECD workshop on the environmental assessment of metals
        • Environmental Effects of Nanoparticles and Nanomaterials
        • Launch of REACH Compliance Assist
        • Green Initiatives in the Pharmaceutical Industry
        • European Commission Workshop on Metal Bioavailability and the Water Framework Directive – June 21st
        • Can REACH PNECs be used as Environmental Standards for non-European Countries?
        • Peer Review
        • How to consider waste under REACH
        • SETAC Special Science Symposium on the environmental risk assessment of chemical mixtures
      • Blog Archive: 2010
        • Are University Press Officers bringing science into disrepute and are they being aided and abetted by their academics?
        • Nanomaterial Provisions and Compliance under REACH
        • National legislation of nanomaterials in the context of REACH
        • Nanomaterials: Definitions and registrations under REACH
        • The Regulation of Nanotechnologies under REACH
        • wca meet 2010 REACH deadline for 400 substances
        • Substance Avoidance Lists: What are they and how can you keep track of them?
        • Future directions for REACH: 2011 to the 2013 deadline
        • The EU Ecolabel: A growing environmental standard
        • Hazard vs Risk in EU Chemicals Regulation
        • Marine Strategy Framework Directive
        • Dealing with the Uncertainty of Non-Test Methods under REACH
        • ECOPHARMACOVIGILANCE – Where next?
        • Manufacturing Using Sustainable Chemistry (MUSC)
        • Future Directions for Biocides Regulation in the EU
        • European Lubricants Industry Annual Congress
        • Horizon Scanning – How to add value not additional cost
        • New website on Alternatives to Animal Testing
        • Assessing the biological effects of nanomaterials
        • SUBSTITUTION – What?, Why? and How?
        • Workshop on Alternatives to Animal Testing – September the 17th
        • Water Sustainability and the Food Industry
        • ECOVIGILANCE – An essential requirement for the maintenance of biodiversity.
        • Environmental Quality Standards and Field Evidence
        • Regulatory developments in environmental risk assessment of endocrine disruptors
        • Ecopharmacostewardship – A pharmaceutical industry perspective
        • UK Coalition Government & Animal Testing
        • Socioeconomic assessment under REACH (again!)
        • n-hexane linked to adverse health effects in China
        • Mode of Action – A paradigm shift in the risk assessment of micropollutants?
        • Converting Environmental Risk Assessment Outputs into Socioeconomic Impact Assessment Inputs under REACH
        • Report from the 2nd International Conference on Sustainable Pharmacy
      • Blog Archive: 2009
        • Thresholds of Toxicological Concern for Endocrine Active Substances in the Aquatic Environment
        • Bioavailability based standards for metals are practical and accessible tools for regulators and stakeholders
        • Evidence that population level chemical impacts can sometimes be reversed
        • How to identify an endocrine disrupting compound
        • Announcing the 2nd International Conference on Sustainable Pharmacy
        • wca further enhance their capability in contaminated land and waste recycling
        • Derivation and Use of Environmental Quality and Human Health Standards for Chemical Substances in Water and Soil
        • Beyond Regulation: Risk Pricing & Responsible Innovation
        • UK develops nanotechnology strategy
        • A Pragmatic Approach to the Precautionary Principle
        • Computational approaches under REACH
        • “Is Sustainable Development Sustainable” – An Economist Debate
        • DEFRA Chemical Stakeholder Forum
        • Towards Green Pharmacy
        • How to assess the toxicity of mixtures
        • Sustainable Development & Production of Human Pharmaceuticals
        • Metals risk assessment at SETAC 2009
        • wca at SETAC Goteborg 2009
        • Programme for the 2nd International Conference on Sustainable Pharmacy
    • The future of the EU chemicals strategy
    • ECHA SME verification
    • REACH registration dossiers: Grouping speeds up the evaluation process
    • ECHA report on alternatives to in vivo testing
    • Analysis of Alternatives is gaining importance in Europe
    • Genotoxicity testing – combined in vivo micronucleus and comet assays
    • Preparing for UK REACH
    • Implications for the EU Ecolabel in the UK after Brexit: an update
    • New guidance on UK REACH
    • Deriving a bioavailability-based zinc environmental quality standard for France
    • Demonstrating the Reliability of Bio‐Met for Determining Compliance with Environmental Quality Standard (EQS) for Metals in Europe
    • Perspectives on Relevancy Assessment for Non Standard Ecotoxicity Data in Environment Quality Standard derivation: Examples for Diclofenac
    • Updated UK REACH guidance
    • SETAC North America: SciCon2
    • SETAC-North America: SETAC SciCon2 Round-up
    • Developing understanding of the fate and behaviour of silver in fresh waters and waste waters
    • An Irish Adventure
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