skip to main content
tropical fishes underwater picture 1300 x 400

Endocrine disruption

Endocrine disrupters are chemicals which under certain conditions can impact on the hormonal system of humans and animals. In recent years the scientific community and authorities worldwide have been discussing this topic and how to regulate these chemicals and significant progress has been achieved, both in the EU and international organizations.

Endocrine disrupting properties require specific evaluation under European legislation, including the regulation for Plant Protection Products (EC) No 1107/2009, the Biocidal Products Regulation (EU) No 528/2012, and REACH (EC) No 1907/2006.

The new hazard-based EU criteria for identifying endocrine disrupters, legally defined in in Commission Delegated Regulation (EU) No 2017/2100 and Commission Regulation No 2018/605 for biocidal products and plant protection products respectively, have now entered into force and will apply to all, also to already on-going renewal/approval processes. Therefore, the marketing and use of chemicals can only be supported providing they do not have endocrine disrupting properties which may cause adverse effects in humans or non-target wildlife species.

The REACH regulation indicates that substances with endocrine disrupting properties will require further investigation before they can be authorised for use; continued use of these substances will be subject to restrictions.

In June 2018, the guidance on the identification of endocrine disrupters was published by EFSA and ECHA with support from Joint Research Centre. Following the acceptance of the criteria, companies who have previously submitted active substances dossier for plant protection products and biocides will be asked by the authorities to update them by including the assessment of endocrine disrupting properties in accordance with the new guidance. For the majority of dossiers submitted prior to the publication of the guidance and ED criteria, the endocrine activity will most likely be considered insufficiently investigated and additional studies may be required.

Enviresearch has considerable expertise in the area of endocrine disruption and our scientists have supported several governmental programmes contributing to advancing science in this field. We are able to help you interpret the guidance and provide insights on how to prepare the assessment of endocrine disputing potential of your active substance as required by the authorities.

 Our services include:

  • Weight of evidence reviews of endocrine disrupting properties for agrochemicals and biocides, using the step-wise approach suggested in the guidance to evaluate endocrine disputing potential of your compounds.
  • Data search (as per the strategy of Appendix F of the ECHA/EFSA guidance).
  • Gathering of available studies (DAR/RAR/CAR, other relevant studies).
  • Data/study relevance and reliability evaluation.
  • Assessment of the preliminary evidence of ED properties.
  • EATS mediated adversity evaluation by setting specific scenarios.
  • MoA (Mode of Action) analysis.
  • Data Gap identification.
  • Development of testing strategies.
  • Placement and study monitoring.
  • Dossier preparation including reporting of available information on excel file (as per ECHA/EFSA guidance Appendix E).

For further information explore our ED Service Information Sheet.

New BPR Data Requirements for Endocrine Disruption

New BPR Data Requirements for Endocrine Disruption

In May this year, following the end of the feedback period, the final version of the proposed data requirements for assessing endocrine disrupting (ED) properties of biocides was agreed. The European Commission is expected to publish the final regulation this autumn.

Continue Reading

Weight of Evidence Reviews for Endocrine Disrupting Properties

Endocrine disrupting properties require specific evaluation under the European regulation on the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH; 1907/2006) and the regulations on plant protection (Regulation [EC] 1107/2009) and biocidal (Regulation [EC] 528/2012) products.

Specific criteria to identify endocrine disrupting properties, which enable hazard‐based regulation, has been accepted under the BPR (EC 2017/2100) and PPP Regulation (EC 2018/605). These regulations and the criteria only support the marketing and use of chemicals on the basis that they do not meet these criteria in humans or non-target wildlife species. 

Continue Reading

Endocrine Disrupters and Plant Protection Products

On April 20th, 2018, the European Commission published Regulation 2018/605 amending Annex II to Regulation (EC) No. 1107/2009 on the Official Journal of the European Union.  This Regulation sets out scientific criteria for the determination of endocrine disrupting properties. It aims to provide greater clarity on endocrine disruptors and ensure safety of both human and animal health.

Continue Reading

Endocrine Disrupters and Biocides

The new endocrine disrupter criteria for biocides apply from the 7th of June 2018 under Regulation (EU) No 528/2012. This means that new biocides and biocides currently going through the authorisation process will need to have endocrine disrupter assessment included as part of their application.

Continue Reading

Enviresearch staff working on endocrine disruption


Waterloo Square
City Quadrant 11
Newcastle upon Tyne NE1 4DP

Telephone: +44 (0)191 243 0687
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Further Information