Latest blog posts

Use of the Xenopus eleutheroembyronic thyroid assay (XETA) in endocrine assessments

February 9, 2021 by Grace Panter

Becky Brown and myself recently attended an interesting webinar by European Food Safety Authority/European Chemicals Agency (EFSA/ECHA) on how to consider the Xenopus eleuthereombryonic thyroid assay (XETA) in the assessment strategy of…
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An Irish Adventure

January 14, 2021 by Dean Leverett

Since the formation of wca environment Ltd in 2005, the company has operated out of a single office in southern England. During 2020, with the end of the Brexit transition…
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Developing understanding of the fate and behaviour of silver in fresh waters and waste waters

December 14, 2020 by Adam Peters

Adam and Graham have been working with researchers from the Wilfred Laurier University and the University of Waterloo in Canada, the Centre for Ecology and Hydrology in…
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SETAC-North America: SETAC SciCon2 Round-up

December 2, 2020 by Grace Panter

It was a busy week for Adam and Graham participating in the virtual SETAC North America 41st Annual Meeting – SETAC SciCon2 between the 15th and 19th of November 2020. wca were involved…
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SETAC North America: SciCon2

November 30, 2020 by Adam Peters

The SETAC North America meeting has been held as a virtual conference recently (SciCon2) and Adam co-chaired a session with Chris Mebane of the USGS on the derivation and use…
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Updated UK REACH guidance

October 27, 2020

The Health and Safety Executive (HSE) has published 11 webpages with detailed guidance to comply with UK REACH. More information has been provided on some key issues below. Data requirements: All…
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Perspectives on Relevancy Assessment for Non Standard Ecotoxicity Data in Environment Quality Standard derivation: Examples for Diclofenac

October 15, 2020 by Graham Merrington

Graham, Adam and Dean have just published the paper “Perspectives on Relevancy Assessment for Non Standard Ecotoxicity Data in Environment Quality Standard derivation: Examples for Diclofenac” in Bulletin…
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Demonstrating the Reliability of Bio‐Met for Determining Compliance with Environmental Quality Standard (EQS) for Metals in Europe

October 5, 2020 by Adam Peters

Adam and Graham have been working with colleagues in Arche Consulting, NiPERA, IZA and ECI to evaluate the reliability of the simplified metal bioavailability tool bio-met for copper, nickel, and…
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Deriving a bioavailability-based zinc environmental quality standard for France

September 24, 2020 by Graham Merrington

Adam, Iain and I, along with colleagues at the International Zinc Association have derived a bioavailability-based zinc Environmental Quality Standard (EQS) for France following recently updated European Technical Guidance,…
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New guidance on UK REACH

September 4, 2020 by Olivia Tran

Defra published new guidance on UK REACH on 1 September1. The new framework will be administered by the Health and Safety Executive (HSE) and will come into effect on…
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Implications for the EU Ecolabel in the UK after Brexit: an update

August 12, 2020 by Olivia Tran

The European Commission released guidance1 at the end of June on EU Ecolabels awarded by the UK Competent Authority under the Withdrawal Agreement and transitional period. Companies with EU Ecolabelled-products awarded…
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Preparing for UK REACH

August 7, 2020 by Becky Marks

With just months to go until the likely implementation of UK REACH, plans are being made to prepare for the new system. Companies are focussed on understanding how UK REACH…
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Genotoxicity testing – combined in vivo micronucleus and comet assays

July 28, 2020 by Kate Roylance

Genotoxicity testing is required under REACH for substances registered at Annex VII and above. The purpose of genotoxicity testing is to determine whether a substance will cause a mutagenic hazard…
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Analysis of Alternatives is gaining importance in Europe

July 24, 2020 by Olivia Tran

Olivia Tran recently completed an ECHA training course on ‘analysis of alternatives’ (AoA) for hazardous substances. AoA is required to support applications for substance Restriction and Authorisation under REACH but…
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ECHA report on alternatives to in vivo testing

July 8, 2020 by Rhiannon Smith

In June, ECHA issued a report to the European Commission on progress under the REACH regulation on the reduction of in vivo testing. The report discusses aspects which have been implemented by…
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REACH registration dossiers: Grouping speeds up the evaluation process

July 6, 2020 by Sylwia Kosmala-Grzechnik

The second report on Integrated Regulatory Strategy, entitled ‘Grouping speeds up regulatory action’, released recently by ECHA, provides an update on the current status of registration dossiers evaluations…
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ECHA SME verification

June 19, 2020 by Rhiannon Smith

One of the topics discussed in the draft motion for a resolution on chemicals strategy for sustainability published in February was requests for further support for SMEs to comply with chemical legislation.
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The future of the EU chemicals strategy

June 17, 2020 by Rhiannon Smith

Last week, the EU parliament’s environment committee held a meeting to discuss the draft motion for a resolution, which lists the aims and considerations which the parliament want included…
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June 1, 2020 by Graham Merrington

wca participated in the SciCON SETAC’s 30th Annual European meeting between May the 3rd and 7th of May 2020. We were involved with presentations and posters on metals on the development…
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Update on COVID-19

May 15, 2020 by Dean Leverett

In my previous blog on how wca are coping with the Covid-19 outbreak, I promised further blog updates as the situation developed. I am pleased to report that during the UK’s…
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