Filter by Subject
Tags
EFSA PECsoil guidance training event

ERM recently attended the European Food Safety Authority’s (EFSA) training event on its forthcoming PECsoil (Predicted Environmental Concentrations in soil) guidance. When implemented, the guidance will fundamentally change the way PECsoil calculations are performed for plant protection products. A tiered approach uses the new model PERSAM as well as modified versions of the groundwater leaching models PEARL and PELMO. There are facilities to include the handling of pH-dependent substances, row crops and granular applications.

Tiers 1 and 2 use conservative default input parameters, producing higher PECsoil than current calculations. Tier 3 is more conservative than current calculations for short-lived substances (producing 1.3 to 2.1 x higher PECs) due to the inclusion of wash-off and changes to soil bulk density values. Tier 3 is potentially less conservative for persistent substances (producing 0.5 to 1.5 x higher PECs) due to the inclusion of leaching and the use of averaged as opposed to worst-case DT50 values.

New ecotoxicology guidance is also planned by EFSA, ultimately for use in conjunction with the new PECsoil approach. Currently EFSA does not foresee the new PECsoil guidance being used in regulatory submissions within the next year to 18 months. ERM’s experienced teams of environmental fate and ecotoxicology scientists will be happy to help you address potentially problematic soil exposure and risk assessments in advance of the new guidance’s implementation.

For advice on PECsoil assessment and further information on the registration of plant protection products, biocides or general chemicals, or any other regulatory issues, please contact ERM on +44 (0)1423 520245, enquiries-harrogate@erm.com.

 

Published 16th July 2019
Categories Agrochemicals, News
Related Articles
Get In Touch
Drop us a line using the email below.
Or if you want to speak to us urgently call +44 (0)1423 520245

ERM Regulatory Services Limited
The Exchange, Station Parade
Harrogate, North Yorkshire
HG1 1TS

The Exchange is a ten storey building next to Harrogate train station.
(We are on the 5th floor).

Parking is available at Station Parade car park (HG1 1TT)
or the Victoria Multi Storey car park (HG1 5LQ) on East Parade.

Tel
+44 (0)1423 520245
© 2018 ERM Regulatory Services Limited. Registered in England No. 10054379. The Exchange, Station Parade, Harrogate HG1 1TS.