3.5 Data on environmental fate and effect under aerobic and anaerobic conditions (Procedure (G9), paragraph 4.2.1.3)

3.5.2 Modes of degradation (biotic; abiotic)

Information on the specific degradation rates (biotic and abiotic) at different salinities and temperatures is desirable for the evaluation of the persistence of all substances and can be used for the MAMPEC calculations. Potential environmental, health and safety consequences of observed degradation rates should be discussed as appropriate.

3.5.3 Persistence and identification of the main metabolites in the relevant media (ballast water, marine and fresh waters)

The results from section 3.5.2 should be discussed here regarding the classification as persistent (PBT-approach) substances. Relevant metabolites should be identified and it should be discussed whether they possess hazardous properties according to the PBT assessment.

3.5.4 Bioaccumulation, partition coefficient, octanol/water partition Coefficient

To be able to evaluate the MAMPEC calculations the octanol-water partition coefficient K_ow is needed. The bioaccumulation already is discussed under 3.3.6 and 3.3.7.

3.5.5 Bioavailability/biomagnification/bioconcentration

For the evaluation of the potential for bioaccumulation, the log K_ow and/or the bioconcentration factors (BCF) data is needed. Calculation of the K_ow according to acknowledged standards, e.g. ACD is acceptable. A substance is regarded as (potentially) bioaccumulative if the log Kow is >3 and BCF>2000. If the log K_ow is above 3, testing of the bioaccumulation potential should be considered. The BCF, for example, could be calculated with the formulae 74 and 75 of the TGD (see 3.3.5) using the log K_ow. Other established methods for deriving the BCF may be used. Where tests are not applicable, or if log K_ow <3, BCF values may be estimated using (Quantitative) Structure-Activity Relationship ((Q)SAR) models.

3.5.6 Reaction with organic matter

If there are reactions with organic matter these should be discussed. It should be described to what extent this issue was investigated, experimentally or by analysis of available literature data.

3.5.7 Potential physical effects on wildlife and benthic habitats

If there are effects on wildlife and benthic habitats, these should be discussed.

3.5.8 Potential residues in seafood

If there are potential residues in seafood, these should be discussed taking into account the PBT and mammalian toxicity properties of the substances.

3.5.9 Any known interactive effects

It should be described to what extent this issue was investigated, experimentally or by analysis of available literature data. If there are identified or suspected interactive effects, these should be discussed.