Registration Dossier

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Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
no hazard identified

Marine water

Hazard assessment conclusion:
no hazard identified

STP

Hazard assessment conclusion:
no hazard identified

Sediment (freshwater)

Hazard assessment conclusion:
no hazard identified

Sediment (marine water)

Hazard assessment conclusion:
no hazard identified

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
no hazard identified

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

According to the study from Tarran et al., the water solubility of the substance is lower than 1.52 x 10^(-5) g/L.

The program WSKOWWIN v.1.42 calculated a water solubility of 6.6 x 10^(-5) mg/L.

In the study reports from the aquatic toxicity it is reported that the water solubility is lower than 0.00067 mg/L.

 

So the water solubility is set to be less than 0.00067 mg/L.

 

In summary of the studies is concluded that Dioctyltin oxide is not soluble enough to cause adverse effects in the aquatic environment.

 

Endpoint code

Description

Guideline

Effect

Value

Remark

Evaluation

6.1.1

Short term fish

OECD 203

LC50(96h)

> 0.05 mg/L

greater than water solubility

 

6.1.2

Long term fish

 

 

 

waiver

 

6.1.3

short term inverbrates

OECD 202

EC50(48h)

>0.21 mg/L

greater than water solubility

 

6.1.3

short term inverbrates

OECD 202

EC50(48h)

>0.00067 mg/L

greater than water solubility

 

NOEC(48h)

0.00067 mg/L

greater than water solubility

 

6.1.4

long term inverbrates

 

 

 

waiver

 

6.1.5

growth inhibition algae

OECD 203

EC50(72h)

>0.0018 mg/L

greater than water solubility

 

LOEC(72h)

0.0018 mg/L

 

no effects at lower conc.

NOEC(72h)

0.00097 mg/L

 

greater than water solubility

6.1.5

growth inhibition algae

-

NOEC

0.006 mg/L

 

greater than water solubility

EC10

0.03 mg/L

 

greater than water solubility

 

 

Conclusion on classification

9.1.3 Short-term toxicity testing on fish: Hooftman & de Wolf (2004), OECD 203 and EU method C.1; LC50>water solubility

9.1.1 Short-term toxicity on invertebrates: Hooftman & de Wolf (2004), OECD 202 and EU method C.2; EC50>water solubility

9.1.2 Growth Inhibition Study on Aquatic Plants: Rufli (1988), OECD 201; ErC50 > water solubility

In accordance with the criteria outlined in Regulation EC No. 1272/2008 (CLP) and Directive 67/548/EEC (DSD), the substance does not meet the critieria for classification as dangerous to the environment.

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