| The key changes versus the previous version include the following:
- For more clarity, the report has been split into two parts in order to cover separately homo-polymers (P-AA, Part I) and co-polymers of (P-AA/MA, Part II).
- The refined assessment has been based on updated tonnages of polycarboxylates used in detergents (EU data 2011 collected in 2012).
- New experimental data have been generated and included in order to:
o address the sorption behaviour (adsorption study using radio-labelled materials performed)
o refine the effect assessment (new terrestrial studies performed).
- The new reports include more detailed explanations than the previous version, including re-assessment of the whole available dataset. On that basis new risk characterisation ratios have been calculated for both types of polymers.