Registration Dossier

Diss Factsheets

Administrative data

Hazard for aquatic organisms

Hazard for air

Hazard for terrestrial organisms

Hazard for predators

Additional information

Conclusion on classification

Daphnia acute data: 48h-EC50: > 24.2 mg/L (measured)

Algae growth inhibition data:

Acute data: 72h-ErC50 value (growth rate): > 28.9 mg/L (measured);

Chronic data: NOEC: >28.9 mg/L (measured)

And the substance is considered to be readily degradable and log Pow at 25 °C and a pH of 6.5 was -0.24.

 

Acute classification:

In according to Regulation (EC) 1272/2008, amendment 286/2011, table 4.1.0 (a), acute classification is either Category Acute 1 or not classified, Category Acute 1 applies if EC50 for fish or Daphnia magna or algae ≤ 1 mg/L.

For this substance all EC50 values are > 1mg/L, therefore the substance is not classified for acute aquatic toxicity.

 

Chronic classification:

In according to Regulation (EC) 1272/2008, amendment 286/2011, table 4.1.0 (b.ii), rapidly degradable substances for which there are adequate chronic toxicity data available, chronic classification is either Category Chronic 1, Category Chronic 2, Category Chronic 3 or not classified.

As the substance is considered to be readily degradable, actual NOEC value for Algae > 1 mg/L, Category Chronic 1, 2 and 3 do not apply (Category Chronic 3 is required for rapidly degradable substances if chronic NOEC or ECx for fish or Daphnia magna or algae > 0.1 to ≤ 1 mg/L).

In addition, “Safety net” classification (Category Chronic 4) are cases when data do not allow classification under the above criteria but there are nevertheless some grounds for concern. This includes, for example, poorly soluble substances for which no acute toxicity is recorded at levels up to the water solubility, and which are not rapidly degradable and have an experimentally determined BCF ≥ 500 (or, if absent, a log Kow ≥ 4). This substance does not meet this criteria.

Therefore the substance is not classified for chronic aquatic toxicity.